California RDA Written Exam Practice Tests

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California RDA Written Exam Practice Tests - Quiz

Being a Registered dental assistant is a rewarding yet tough job. Are you interested in it? If yes, then we encourage you to give our ' California RDA written exam practice test ' a fair try. The questions in this quiz are very informative and will make you think! You are expected to attempt all the questions carefully. All the questions are compulsory. You can take this quiz as a fantastic means to enhance your examination preparations. We wish you all the very best for your exams! All the very best and keep studying!


California RDA Questions and Answers

  • 1. 

    What charting symbol best indicates a tooth that is not visible in the mouth?

    • A.

      Circle around the tooth

    • B.

      Outline with diagonal lines

    • C.

      X through the tooth

    • D.

      Diagonal lines

    Correct Answer
    C. X through the tooth
    Explanation
    The symbol "X through the tooth" best indicates a tooth that is not visible in the mouth. This symbol is commonly used in dental charting to represent a missing tooth or a tooth that has been extracted. It is a clear and easily recognizable way to indicate the absence of a tooth on a dental chart.

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  • 2. 

     A base is placed ____________________ :

    • A.

      As a measure of protection for the pulp 

    • B.

      Because decay or trauma was close to the pulp

    • C.

      On the floor of the tooth preparation 

    • D.

      A, B, and C are all correct

    Correct Answer
    D. A, B, and C are all correct
    Explanation
    A base is placed as a measure of protection for the pulp because decay or trauma was close to the pulp, and on the floor of the tooth preparation.

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  • 3. 

    According to the Dental Board regulations, how long should sterilization monitoring records be stored?

    • A.

      Three years from the date the load was originally processed

    • B.

      One week after the load was originally processed

    • C.

      One year

    • D.

      One year after each sterilizer involved was first monitored

    Correct Answer
    C. One year
    Explanation
    According to the Dental Board regulations, sterilization monitoring records should be stored for one year. This means that the records should be kept for a period of twelve months from the date the load was originally processed.

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  • 4. 

    Which of the following is an example of an OSHA required sharp with engineered injury protection?

    • A.

      A cardboard needle guard added to  a dental anesthetic needle

    • B.

      A butterfly needle used to administer IV sedation

    • C.

      A self-sheathing needle attached to a dental anesthetic syringe

    • D.

      A needle cap holder built into an instrument cassette

    Correct Answer
    C. A self-sheathing needle attached to a dental anesthetic syringe
    Explanation
    A self-sheathing needle attached to a dental anesthetic syringe is an example of an OSHA required sharp with engineered injury protection. This type of needle has a built-in mechanism that automatically covers the sharp tip after use, reducing the risk of accidental needlestick injuries. The other options, such as a cardboard needle guard, a butterfly needle, and a needle cap holder, do not provide the same level of engineered injury protection as a self-sheathing needle.

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  • 5. 

    The air/water syringe is primarily used during the coronal polishing procedure to _____________________ :

    • A.

       irrigate the oral cavity

    • B.

      Dry the tooth surfaces 

    • C.

      Encourage drying of the mucosa 

    • D.

      Remove the remaining paste

    Correct Answer
    D. Remove the remaining paste
    Explanation
    The air/water syringe is primarily used during the coronal polishing procedure to remove the remaining paste. This is because after the polishing paste is applied to the teeth and the polishing procedure is completed, there may be residue or excess paste left on the tooth surfaces. The air/water syringe provides a combination of air and water that helps to effectively rinse and remove the remaining paste, leaving the teeth clean and polished.

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  • 6. 

    Which of the following should be done FIRST if an adult patient does not have a pulse?

    • A.

      Call for emergency assistance 

    • B.

      Administer oxygen

    • C.

      Call the patient's medical doctor

    • D.

      Administer CPR

    Correct Answer
    A. Call for emergency assistance 
    Explanation
    The first thing that should be done if an adult patient does not have a pulse is to call for emergency assistance. This is important because time is of the essence in such situations, and professional medical help is needed immediately. Calling for emergency assistance ensures that trained medical personnel will be on their way to provide the necessary help and potentially save the patient's life. Administering oxygen, calling the patient's medical doctor, or administering CPR can be done after emergency assistance has been called.

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  • 7. 

    Oral surgical procedures require the use of ______________________ :

    • A.

      Chemical agents to disinfect the water and water lines

    • B.

      Sterile irrigating solutions using a sterile delivery system

    • C.

      Water that meets the Food and Drug Administration (FDA) surface water standards 

    • D.

      Water that meets Environmental Protection Agency (EPA) drinking water standards 

    Correct Answer
    B. Sterile irrigating solutions using a sterile delivery system
    Explanation
    Oral surgical procedures require the use of sterile irrigating solutions using a sterile delivery system because these procedures involve direct contact with the oral cavity and can introduce bacteria and other microorganisms into the bloodstream. Using sterile solutions and delivery systems helps to minimize the risk of infection and ensures the safety of the patient during the procedure.

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  • 8. 

    When setting up an instrument tray or cassette, the instruments should be set up _____________________ :

    • A.

      From right to left

    • B.

      From left to right

    • C.

      From top to bottom 

    • D.

      From bottom to top

    Correct Answer
    B. From left to right
    Explanation
    When setting up an instrument tray or cassette, the instruments should be set up from left to right. This is because most people are right-handed, and setting up the instruments from left to right allows for easier access and manipulation of the instruments with the dominant hand. Additionally, setting up the instruments from left to right follows the natural reading and writing direction in many cultures, making it easier to locate and identify specific instruments when needed.

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  • 9. 

    Who legally owns a patient's dental radiographs?

    • A.

      The patient

    • B.

      The radiologist 

    • C.

      The dentist

    • D.

      The physician 

    Correct Answer
    C. The dentist
    Explanation
    The dentist legally owns a patient's dental radiographs because they are considered part of the patient's dental records. These records are the property of the dentist and are used for diagnostic and treatment purposes. The dentist is responsible for keeping these records confidential and ensuring their safekeeping.

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  • 10. 

     Calcium hydroxide is used in dentistry as a ____________________ :

    • A.

       base

    • B.

      Liner

    • C.

      Matrix 

    • D.

      All the above answers are correct 

    Correct Answer
    B. Liner
    Explanation
    Calcium hydroxide is used in dentistry as a liner. A liner is a material that is placed between the tooth and a restoration to protect the tooth from irritation and promote healing. Calcium hydroxide has antimicrobial properties and stimulates the formation of secondary dentin, making it an ideal choice for a liner in dental procedures.

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  • 11. 

    Prior to sterilization, loose contaminated instruments are processed in an ultrasonic cleaner to _____________ : 

    • A.

      Clean then disinfect 

    • B.

      Remove all microorganisms 

    • C.

      Remove debris and bioburden 

    • D.

      Disinfect the clean 

    Correct Answer
    C. Remove debris and bioburden 
    Explanation
    The correct answer is c. remove debris and bioburden. Prior to sterilization, loose contaminated instruments are processed in an ultrasonic cleaner to remove debris and bioburden. This is important because sterilization is most effective when the instruments are thoroughly cleaned before the process. The ultrasonic cleaner uses high-frequency sound waves to create tiny bubbles that implode, creating a scrubbing action that helps to dislodge and remove any debris or bioburden present on the instruments. This ensures that the instruments are properly prepared for sterilization and reduces the risk of contamination.

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  • 12. 

    A critical step for healthcare workers in preventing the spread of disease is proper hygiene of one's ____________________ :

    • A.

      Hair

    • B.

      Eyes

    • C.

      Face

    • D.

      Hands 

    Correct Answer
    D. Hands 
    Explanation
    A critical step for healthcare workers in preventing the spread of disease is proper hygiene of one's hands. This is because hands are the primary way through which germs and infections are transmitted. Healthcare workers come into contact with various surfaces and patients, making it crucial for them to regularly wash their hands with soap and water or use hand sanitizers to kill any potential pathogens. Proper hand hygiene helps to minimize the risk of spreading infections to both patients and healthcare workers themselves.

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  • 13. 

    The purpose of dental sealants is ______________________ :

    • A.

      To prevent decay from spreading

    • B.

      To prevent decay in the pits and fissures of teeth

    • C.

      To promote good oral health

    • D.

      To prevent decay from interproximal spaces

    Correct Answer
    B. To prevent decay in the pits and fissures of teeth
    Explanation
    Dental sealants are a thin protective coating applied to the chewing surfaces of teeth, particularly in the pits and fissures. These areas are more susceptible to decay as they are difficult to clean properly with brushing alone. By sealing these areas, dental sealants create a barrier that prevents bacteria and food particles from getting trapped and causing decay. This helps to protect the teeth and prevent cavities from forming in these vulnerable areas.

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  • 14. 

    Elevating the patient's feet above the head to increase blood flow to the brain is the response to what medical condition?

    • A.

       heart problems

    • B.

      Syncope 

    • C.

      Allergic reactions 

    • D.

      Diabetes 

    Correct Answer
    B. Syncope 
    Explanation
    Elevating the patient's feet above the head to increase blood flow to the brain is the response to syncope. Syncope, also known as fainting, is a temporary loss of consciousness caused by a lack of blood flow to the brain. Elevating the feet helps to redirect blood flow to the brain and prevent further episodes of syncope.

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  • 15. 

    Angle's classifications are used to classify and describe ________________________ :

    • A.

      Natural teeth in the dentition 

    • B.

      Types of dental caries 

    • C.

      Malocclusion 

    • D.

      Hand instruments 

    Correct Answer
    C. Malocclusion 
    Explanation
    Angle's classifications are used to classify and describe malocclusion. Malocclusion refers to the misalignment or incorrect positioning of the teeth when the jaws are closed. Angle's classifications help in categorizing malocclusions based on the relationship between the upper and lower jaws, as well as the position of individual teeth. This classification system is commonly used by orthodontists to diagnose and plan treatment for malocclusion.

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  • 16. 

    The portion of a dental instrument held by the operator is called the _______________ :

    • A.

      Shank 

    • B.

      Working end

    • C.

      Tip

    • D.

      Handle

    Correct Answer
    D. Handle
    Explanation
    The portion of a dental instrument held by the operator is called the handle. This is the part that the operator grips and controls while performing dental procedures. The handle provides the operator with the necessary leverage and control to maneuver the instrument effectively. It is usually designed to be ergonomic and comfortable to hold, allowing for precise movements and reducing hand fatigue during prolonged use. The handle is an essential component of a dental instrument as it directly influences the operator's ability to perform procedures accurately and efficiently.

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  • 17. 

    Which of the following describes the best way to remain approachable to an anxious patient?

    • A.

      Work slowly

    • B.

      Encourage questions

    • C.

      Encourage quiet

    • D.

      Work quickly 

    Correct Answer
    B. Encourage questions
    Explanation
    Encouraging questions is the best way to remain approachable to an anxious patient because it allows the patient to express their concerns and seek clarification. By actively encouraging questions, the healthcare provider creates a safe and supportive environment where the patient feels empowered to voice their anxieties and receive the necessary information and reassurance. This approach helps to build trust and rapport between the patient and the healthcare provider, ultimately leading to better communication and patient satisfaction.

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  • 18. 

    The patient record is a permanent document of whom? 

    • A.

       the dentist 

    • B.

      A court of law 

    • C.

      The patient 

    • D.

      The dental practice 

    Correct Answer
    A.  the dentist 
    Explanation
    The patient record is a permanent document of the dentist. This means that the dentist is responsible for keeping and maintaining the patient's record, which includes all relevant information about the patient's dental history, treatments, and any other relevant details. The record serves as a reference for the dentist to provide appropriate and personalized care to the patient, and it may also be used for legal purposes if required.

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  • 19. 

    The dental history portion of a patient provides the dental team with information regarding what information?

    • A.

      Previous dental care and treatment

    • B.

      Necessary dental care and treatment 

    • C.

      Dental procedures that are legal for the dental assistant to complete 

    • D.

      Data about the previous dentist

    Correct Answer
    A. Previous dental care and treatment
    Explanation
    The dental history portion of a patient provides the dental team with information regarding previous dental care and treatment. This includes details about any dental procedures the patient has undergone in the past, such as fillings, extractions, or cleanings, as well as any oral health issues or concerns they may have experienced. Understanding the patient's dental history helps the dental team tailor their treatment plan to meet the patient's individual needs and provide appropriate care.

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  • 20. 

    Which of the following products contains calcium hydroxide? 

    • A.

      Dycal 

    • B.

      ZPC

    • C.

      ZOE 

    • D.

      Polycarboxylate

    Correct Answer
    A. Dycal 
    Explanation
    Dycal is the correct answer because it is a dental product that contains calcium hydroxide. Calcium hydroxide is commonly used in dental procedures as a liner or base material due to its antimicrobial and biocompatible properties. It helps in promoting the formation of dentin and protects the pulp from any irritants. ZPC, ZOE, and Polycarboxylate do not contain calcium hydroxide.

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  • 21. 

    What type of mechanical device is used to clean contaminated instruments prior to sterilization? 

    • A.

      Hypersonic

    • B.

      Ultrasonic 

    • C.

      Supersonic

    • D.

      Subsonic 

    Correct Answer
    B. Ultrasonic 
    Explanation
    Ultrasonic devices are used to clean contaminated instruments prior to sterilization. These devices use high-frequency sound waves to create microscopic bubbles in a cleaning solution. The bubbles collapse rapidly, creating a scrubbing action that removes dirt, debris, and contaminants from the instruments. This method is highly effective in removing even the smallest particles from the instruments, ensuring that they are thoroughly cleaned before undergoing sterilization.

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  • 22. 

    While cleaning contaminated instruments, an assistant receives a percutaneous injury to the finger. The assistant should FIRST _______________________________ :

    • A.

      Notify the dentist/employer 

    • B.

      Wash hands with soap and water 

    • C.

      Wipe puncture with glutaraldehyde 

    • D.

      Be evaluated by a physician 

    Correct Answer
    B. Wash hands with soap and water 
    Explanation
    The assistant should FIRST wash their hands with soap and water after receiving a percutaneous injury to the finger. This is important to prevent the spread of any potential contaminants and to reduce the risk of infection.

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  • 23. 

    Why are pits and fissures susceptible to caries? 

    • A.

      Saliva pools in these areas

    • B.

      Fluoride is less effective in these areas 

    • C.

      These areas are hard to evaluate on a radiograph 

    • D.

      These areas are difficult to clean 

    • E.

      Both B and D are correct 

    Correct Answer
    E. Both B and D are correct 
    Explanation
    Pits and fissures are susceptible to caries because fluoride is less effective in these areas and they are difficult to clean. The uneven surfaces of pits and fissures make it challenging to remove plaque and food debris, allowing bacteria to thrive and produce acids that can lead to tooth decay. Additionally, the deep grooves can trap bacteria and make it harder for fluoride to reach and protect the enamel, making these areas more prone to caries.

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  • 24. 

    Clinical considerations for patients with bronchial asthma should include _________________________ :

    • A.

      Paying attention to vinyl use

    • B.

      Shorter appointments to reduce stress

    • C.

      Having ammonia inhalant available 

    • D.

      Avoiding the use of sedatives 

    Correct Answer
    B. Shorter appointments to reduce stress
    Explanation
    Patients with bronchial asthma often experience difficulty breathing and may have increased anxiety and stress during medical appointments. Shorter appointments can help reduce stress levels, as prolonged appointments may exacerbate symptoms and lead to increased respiratory distress. By keeping appointments concise and efficient, healthcare providers can help alleviate patient anxiety and improve overall patient comfort during the visit. This can contribute to better management of asthma symptoms and improved patient outcomes.

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  • 25. 

    Spreaders and pluggers are used in the : 

    • A.

      Placement of a gold foil

    • B.

      Obturation of a root canal 

    • C.

      Seating of a Maryland bridge 

    • D.

      Placement of an amalgam restoration 

    Correct Answer
    B. Obturation of a root canal 
    Explanation
    Spreaders and pluggers are used in the obturation of a root canal. During root canal treatment, the infected pulp is removed from the tooth and the root canal is cleaned and shaped. After cleaning, the root canal is filled with a material called gutta-percha to seal it and prevent reinfection. Spreaders are used to compact the gutta-percha into the root canal, while pluggers are used to condense it further and create a tight seal. This ensures that the root canal is completely filled and sealed, promoting successful healing and preventing further infection.

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  • 26. 

    What instrument is ideal for carving occlusal amalgams?

    • A.

      Burnisher 

    • B.

      Half-hollenback carver

    • C.

      Discoid-cleoid carver 

    • D.

      Beavertail burnisher 

    Correct Answer
    C. Discoid-cleoid carver 
    Explanation
    The discoid-cleoid carver is ideal for carving occlusal amalgams because it has a disc-shaped end for carving and shaping the occlusal surface of the amalgam, and a cleoid-shaped end for carving and shaping the interproximal areas. This instrument allows for precise and efficient carving of the amalgam material, resulting in a smooth and well-contoured restoration. The other options, such as the burnisher and beavertail burnisher, are not specifically designed for carving amalgams, while the half-hollenback carver is more commonly used for carving interproximal areas.

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  • 27. 

    According to California regulations, who is legally allowed to place a base during a restoration procedure?

    • A.

      Dentist 

    • B.

      RDA

    • C.

      DA

    • D.

      Both A and B are correct

    Correct Answer
    D. Both A and B are correct
    Explanation
    According to California regulations, both dentists and Registered Dental Assistants (RDAs) are legally allowed to place a base during a restoration procedure. This means that either a dentist or an RDA can perform this task within the scope of their professional responsibilities.

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  • 28. 

    According to the Dental Board regulations, what is the proper method for decontaminating impressions before sending them to the laboratory?

    • A.

      Clean and disinfect using an intermediate level disinfectant 

    • B.

      Clean with soap and water 

    • C.

      Spray with mouthwash 

    • D.

      Disinfect, package and sterilize 

    Correct Answer
    A. Clean and disinfect using an intermediate level disinfectant 
    Explanation
    The proper method for decontaminating impressions before sending them to the laboratory is to clean and disinfect them using an intermediate level disinfectant. This ensures that any potential pathogens or contaminants are effectively removed, reducing the risk of cross-contamination and ensuring the safety of both the dental staff and the laboratory technicians who will be handling the impressions.

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  • 29. 

    A single-use item reduces the risk of disease transmission because it is: 

    • A.

      Cleaned and not reused

    • B.

      Sterilized and reused 

    • C.

      Disinfected and reused 

    • D.

      Discarded and not reused 

    Correct Answer
    D. Discarded and not reused 
    Explanation
    A single-use item reduces the risk of disease transmission because it is discarded and not reused. This means that after it has been used once, it is thrown away and not used again. By doing so, any potential pathogens or contaminants that may be present on the item are eliminated, reducing the risk of spreading diseases.

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  • 30. 

    Are sealants the only preventative measure used? 

    • A.

      Yes 

    • B.

      No

    Correct Answer
    B. No
    Explanation
    Sealants are not the only preventative measure used. While sealants are a common preventative measure used to protect teeth from decay, there are other measures as well. These can include regular brushing and flossing, using fluoride toothpaste, having a balanced diet, and visiting the dentist regularly for check-ups and cleanings. These measures together help maintain oral health and prevent dental issues.

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  • 31. 

    What are the ways for sealant materials to harden? 

    • A.

      Polymerization 

    • B.

      Light-cure 

    • C.

      Self-cure

    • D.

      All the above 

    Correct Answer
    D. All the above 
    Explanation
    Sealant materials can harden through polymerization, which is a chemical reaction that forms a solid network of polymers. They can also harden through light-cure, which involves using a light source to initiate a chemical reaction that leads to hardening. Additionally, sealant materials can harden through self-cure, which means they harden on their own without the need for external factors like light or heat. Therefore, all of the options mentioned (a. polymerization, b. light-cure, c. self-cure) are ways for sealant materials to harden.

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  • 32. 

    A patient with which of the following medical conditions may benefit from prophylactic sublingual nitroglycerin? 

    • A.

      Neuromuscular disorders 

    • B.

      Endocrine disorders

    • C.

      Cardiovascular disorders 

    • D.

      Pulmonary disorders

    Correct Answer
    C. Cardiovascular disorders 
    Explanation
    Patients with cardiovascular disorders, such as angina or coronary artery disease, may benefit from prophylactic sublingual nitroglycerin. Nitroglycerin is a vasodilator that helps to relax and widen blood vessels, improving blood flow and reducing the workload on the heart. This can help to prevent or relieve chest pain (angina) in patients with cardiovascular disorders.

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  • 33. 

    Which of the following is one of the signs of anaphylactic shock? 

    • A.

      Erythema 

    • B.

      Respiratory distress 

    • C.

      Itching

    • D.

      Rise in blood pressure

    Correct Answer
    B. Respiratory distress 
    Explanation
    One of the signs of anaphylactic shock is respiratory distress. This means that the person may experience difficulty breathing, shortness of breath, wheezing, or a tight feeling in the chest. Anaphylactic shock is a severe allergic reaction that can be life-threatening, and respiratory distress is a common symptom of this condition. It is important to seek immediate medical attention if someone is experiencing respiratory distress during an allergic reaction.

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  • 34. 

    To prevent alveolitis after a tooth extraction, the patient should be instructed to: 

    • A.

      Rinse vigorously the first 24 hours 

    • B.

      Take aspirin for the first 24 hours 

    • C.

      Place ice packs o the face

    • D.

      Avoid drinking through a straw 

    Correct Answer
    D. Avoid drinking through a straw 
    Explanation
    After a tooth extraction, the patient should avoid drinking through a straw to prevent alveolitis. When drinking through a straw, the suction created can dislodge the blood clot that forms in the socket, which is necessary for proper healing. Dislodging the blood clot can lead to a condition called alveolitis, which is characterized by severe pain and delayed healing. Therefore, it is important for the patient to avoid drinking through a straw to minimize the risk of developing alveolitis.

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  • 35. 

    The dental specialty that deals with the diagnosis and treatment of disease of supporting tissues is : _______________________________

    • A.

      Endodontics 

    • B.

      Pediatrics

    • C.

      Orthodontics

    • D.

      Periodontics 

    Correct Answer
    D. Periodontics 
    Explanation
    Periodontics is the dental specialty that focuses on the diagnosis and treatment of diseases that affect the supporting structures of the teeth, such as the gums, bones, and ligaments. This specialty deals with conditions like gum disease, periodontal infections, and the placement of dental implants. Endodontics, on the other hand, deals with the diagnosis and treatment of diseases of the dental pulp, while pediatrics focuses on dental care for children, and orthodontics deals with the correction of misaligned teeth and jaws. Therefore, the correct answer is d. periodontics.

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  • 36. 

    The dental unit provides necessary electricity and hoses with air and water to the patient chair and the _____________________ delivery system is positioned behind the patient's head 

    • A.

      Front

    • B.

      Rear

    • C.

      Side

    • D.

      Top

    Correct Answer
    B. Rear
    Explanation
    The dental unit provides electricity and hoses with air and water to the patient chair, and the delivery system is positioned behind the patient's head. The word "rear" indicates the back or the opposite side of the front. Therefore, option b. rear is the correct answer as it accurately describes the position of the delivery system.

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  • 37. 

    Which instrument is used to place and remove elastic ties and remove orthodontic separators? 

    • A.

       elastic separating pliers

    • B.

      Wax spatula 

    • C.

      Scalpel 

    • D.

      Orthodontic scaler

    Correct Answer
    D. Orthodontic scaler
    Explanation
    An orthodontic scaler is a tool used in orthodontics to remove elastic ties and orthodontic separators. It is specifically designed for this purpose and has a thin, pointed tip that allows for precise placement and removal of these materials. Elastic separating pliers are used for a different purpose, which is to place and remove elastic separators. Wax spatulas and scalpels are not typically used for these tasks in orthodontics. Therefore, the correct answer is d. orthodontic scaler.

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  • 38. 

    What is a temporary sedative dressing or a direct provisional restoration?

    • A.

      A temporary crown

    • B.

      A permanent restoration 

    • C.

      A temporary filling 

    • D.

      None of the above

    Correct Answer
    C. A temporary filling 
    Explanation
    A temporary sedative dressing or a direct provisional restoration refers to a temporary filling. This is a temporary material that is placed in a tooth to provide protection and relief until a permanent restoration can be placed. It is used to cover and protect the exposed dentin and pulp of a tooth, providing temporary relief from pain or sensitivity. This temporary filling is not meant to be a permanent solution and will eventually need to be replaced with a more permanent restoration, such as a crown or filling.

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  • 39. 

    According to California regulations, who is legally allowed to place a liner during a restorative procedure?

    • A.

      Dentist 

    • B.

      RDA

    • C.

      DA

    • D.

      Both A and B are correct

    Correct Answer
    D. Both A and B are correct
    Explanation
    According to California regulations, both dentists and Registered Dental Assistants (RDAs) are legally allowed to place a liner during a restorative procedure. This means that both professionals have the necessary training and qualifications to perform this task within the scope of their practice.

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  • 40. 

    Which set of precautions is intended to prevent exposure to all body fluids? 

    • A.

        generic

    • B.

      Universal 

    • C.

      Standard 

    • D.

      Direct

    Correct Answer
    C. Standard 
    Explanation
    Standard precautions are a set of infection control practices that are used to prevent the transmission of infectious diseases. These precautions are intended to be applied to all patients, regardless of their diagnosis or presumed infection status. They include measures such as hand hygiene, the use of personal protective equipment (such as gloves, masks, and gowns), safe injection practices, and safe handling and disposal of sharps. By following standard precautions, healthcare workers can protect themselves and others from exposure to all body fluids and minimize the risk of infection transmission.

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  • 41. 

    The majority of the spray produced by dental hand pieces consists of ___________________________ :

    • A.

      Lubricant 

    • B.

      Blood 

    • C.

      Saliva 

    • D.

      Spatter 

    Correct Answer
    C. Saliva 
    Explanation
    The majority of the spray produced by dental hand pieces consists of saliva. Dental hand pieces are used during dental procedures to remove decayed or damaged tooth structure. This process generates a spray that contains saliva, water, and other particles from the oral cavity. Saliva is the main component of this spray, as it is constantly present in the mouth and is aerosolized during dental procedures.

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  • 42. 

    According to OSHA, which infection control measure is considered the most critical for reducing the transmission of microbes in the healthcare setting? 

    • A.

      Immunization

    • B.

      Disinfection 

    • C.

      Hand washing

    • D.

      Sterilization 

    Correct Answer
    C. Hand washing
    Explanation
    Hand washing is considered the most critical infection control measure for reducing the transmission of microbes in the healthcare setting because it helps to remove dirt, germs, and bacteria from the hands. Proper hand hygiene can prevent the spread of infections, including healthcare-associated infections, by breaking the chain of transmission. Hand washing with soap and water or using alcohol-based hand sanitizers can effectively kill or remove most types of germs on the hands, reducing the risk of spreading infections to patients, healthcare workers, and others in the healthcare setting.

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  • 43. 

    A used dental anesthetic needle is an example of _________________________ :

    • A.

      Non-disposable waste 

    • B.

      Household waste 

    • C.

      General waste 

    • D.

      Regulated waste 

    Correct Answer
    D. Regulated waste 
    Explanation
    A used dental anesthetic needle is considered regulated waste because it is potentially infectious and poses a risk to public health. Regulated waste refers to any waste that requires special handling, treatment, and disposal methods due to its potential to spread infection or cause harm.

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  • 44. 

    Why is clear sealant material less desirable? 

    • A.

      It is less attractive 

    • B.

      It is more difficult to evaluate 

    • C.

      It does not match tooth color

    • D.

      It is contraindicated with dental restorations 

    Correct Answer
    B. It is more difficult to evaluate 
    Explanation
    Clear sealant material is less desirable because it is more difficult to evaluate. This means that it is harder for dentists to assess the effectiveness of the sealant and determine if it is properly applied and providing adequate protection to the tooth. This can lead to potential issues such as the sealant not fully adhering to the tooth surface or not providing sufficient coverage, which could result in a higher risk of tooth decay.

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  • 45. 

    What is the difference between filled and unfilled sealants regarding retention rates? 

    • A.

      No difference 

    • B.

      Filled is much stronger 

    • C.

      Unfilled will last longer 

    • D.

      The filler is weaker 

    Correct Answer
    A. No difference 
    Explanation
    The correct answer is a. no difference. This means that there is no difference in the retention rates between filled and unfilled sealants. Both types of sealants have similar rates of retention.

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  • 46. 

    If a blood pressure reading of 142/96 is obtained on an adult, it is classified as _________________________ :

    • A.

      Hypotension

    • B.

      Normal 

    • C.

      Hypertension 

    • D.

      Pre-hypertension 

    Correct Answer
    C. Hypertension 
    Explanation
    A blood pressure reading of 142/96 is classified as hypertension. Hypertension is a condition where the blood pressure in the arteries is consistently elevated, putting strain on the heart and blood vessels. A reading of 142/96 indicates that both the systolic (top number) and diastolic (bottom number) pressures are above the normal range, which is typically around 120/80. This higher reading suggests that the individual may have high blood pressure and should consult a healthcare professional for further evaluation and management.

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  • 47. 

    What is the ratio of breaths to compressions for an adult victim when CPR is performed? 

    • A.

      1 breath/5 compressions 

    • B.

      2 breaths/7 compressions 

    • C.

      2 breaths/30 compressions 

    • D.

      3 breaths/20 compressions 

    Correct Answer
    C. 2 breaths/30 compressions 
    Explanation
    The correct answer is c. 2 breaths/30 compressions. During CPR for an adult victim, the ratio of breaths to compressions is 2 breaths for every 30 compressions. This ratio ensures that there is adequate oxygenation of the victim's lungs while maintaining effective chest compressions to circulate blood.

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  • 48. 

    A surgical dressing that is applied to the surgical site for protection is called a _________________________ :

    • A.

      Osteoplasty 

    • B.

      Periodontal pocket 

    • C.

      Periodontal dressing 

    • D.

      Ostectomy 

    Correct Answer
    C. Periodontal dressing 
    Explanation
    A surgical dressing that is applied to the surgical site for protection is called a periodontal dressing. This type of dressing is used specifically in periodontal procedures to protect the surgical site and promote healing. It helps to prevent infection, control bleeding, and provide support to the tissues during the healing process.

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  • 49. 

    When a person occludes, and mandibular anterior teeth cannot be seen, the diagnosis is: 

    • A.

      Overjet

    • B.

      Crossbite

    • C.

      Open bite 

    • D.

      Overbite 

    Correct Answer
    D. Overbite 
    Explanation
    When a person occludes and the mandibular anterior teeth cannot be seen, the diagnosis is overbite. Overbite refers to the vertical overlap of the maxillary (upper) and mandibular (lower) teeth when the jaw is closed. In an overbite, the upper front teeth cover a significant portion of the lower front teeth, causing them to be hidden from view. This can occur due to various factors such as genetics, tooth alignment, or jaw structure.

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  • 50. 

    What type of radiograph is most commonly exposed in endodontics? 

    • A.

      Periapical 

    • B.

      Cephalometric 

    • C.

      Panoramic 

    • D.

      Bitewing 

    Correct Answer
    A. Periapical 
    Explanation
    Periapical radiographs are the most commonly exposed radiographs in endodontics. These radiographs capture the entire tooth, from the crown to the apex, and the surrounding bone. They are used to diagnose and monitor the progress of endodontic treatment, as well as to identify any periapical pathology or abnormalities. Periapical radiographs provide detailed information about the root canal system and the surrounding structures, making them an essential tool in endodontic procedures.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jul 02, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 15, 2020
    Quiz Created by
    Hanna
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