Test Your Dental Knowledge: RDA Practice Test

Reviewed by Benjamin Yoon
Benjamin Yoon, DMD (Dentistry) |
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Benjamin Yoon earned his Doctor of Dental Medicine (DMD) from Nova Southeastern University College of Dental Medicine, equipping him with the necessary expertise and skills to excel in the field of dentistry. He is currently serving as a general dentist in the US Army.
, DMD (Dentistry)
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  • 1/230 Questions

    Dental treatment rooms are also called operatories.

    • True
    • False
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About This Quiz

Prepare thoroughly for your dental certification with this comprehensive RDA practice test. This quiz is designed to help you review and reinforce the essential knowledge required for the Registered Dental Assistant (RDA) certification. It covers a broad spectrum of topics including dental anatomy, infection control, patient care, dental materials, radiography, and chairside assisting techniques.

By taking this RDA exam See morepractice test, you'll become familiar with the types of questions commonly found on the official exam, allowing you to assess your readiness. Each question is carefully crafted to challenge your understanding of dental procedures and protocols, ensuring that you are well-prepared for the exam. Use this RDA exam practice test as a tool to boost your confidence, identify areas for improvement, and increase your chances of passing the RDA certification with ease.

Test Your Dental Knowledge: RDA Practice Test - Quiz

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  • 2. 

    Smooth transfer of instruments and materials occurs when the assistant is able to anticipate the operator's needs.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement suggests that in order for a smooth transfer of instruments and materials to occur, the assistant must be able to anticipate the needs of the operator. This implies that the assistant should have a good understanding of the procedure being performed and be proactive in providing the necessary instruments and materials before they are requested. This helps to streamline the process and ensures that there are no delays or interruptions during the procedure. Therefore, the statement is true.

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  • 3. 

    Pediatric dentistry is the specialty concerned with

    • Geriatric patients

    • Extraction of 3rd molars

    • Oral care of children

    • Straightening teeth with braces

    Correct Answer
    A. Oral care of children
    Explanation
    Pediatric dentistry is the specialty concerned with the oral care of children. It focuses on promoting and maintaining the oral health of infants, children, and adolescents. Pediatric dentists are specially trained to provide preventive and therapeutic oral healthcare to children, including regular check-ups, cleanings, fluoride treatments, and education on proper oral hygiene. They also diagnose and treat dental issues specific to children such as tooth decay, gum diseases, and developmental problems. Overall, pediatric dentistry plays a crucial role in ensuring the oral health and well-being of children from infancy through their teenage years.

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  • 4. 

    When removing protective clothing, OSHA states that special care is to be taken with items that are considered potentially infectious.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    OSHA (Occupational Safety and Health Administration) requires special care when removing protective clothing that may be contaminated with potentially infectious materials. This is because such items pose a risk of spreading infections if not handled properly. Therefore, the statement is true.

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  • 5. 

    The circulatory body system carries life-sustaining substances such as nutrients and oxygen throughout the body.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The circulatory body system is responsible for transporting essential substances such as nutrients and oxygen to different parts of the body. It consists of the heart, blood vessels, and blood. The heart pumps oxygenated blood from the lungs to the rest of the body, delivering oxygen and nutrients to cells and tissues. It also carries waste products, such as carbon dioxide, away from the cells for elimination. Therefore, it is true that the circulatory system carries life-sustaining substances throughout the body.

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  • 6. 

    Using one hand for instrument transfer frees the other hand for evacuation.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Using one hand for instrument transfer allows the other hand to be available for evacuation, which refers to the removal of fluids or debris from the surgical site. This is important in surgical procedures as it helps maintain a clear and visible field, allowing the surgeon to perform the procedure more effectively and efficiently. By freeing up one hand for evacuation, the surgeon can focus on the transfer of instruments without interrupting the flow of the procedure.

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  • 7. 

    Employers must protect their employees from exposure to blood and OPIM during the time when employees are at work

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Employers have a responsibility to ensure the safety and well-being of their employees while they are at work. This includes protecting them from exposure to blood and other potentially infectious materials (OPIM) that could pose health risks. By implementing measures such as providing personal protective equipment, offering training on proper handling and disposal of these substances, and maintaining a clean and hygienic work environment, employers can fulfill their duty to protect their employees from such hazards. Therefore, the statement is true.

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  • 8. 

    Which factors can initiate malformation in the unborn child

    • Genetics

    • Environment

    • Drugs

    • Infections

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    All of the factors mentioned - genetics, environment, drugs, and infections - can potentially initiate malformation in an unborn child. Genetic factors can include inherited genetic disorders or mutations. Environmental factors such as exposure to toxins, radiation, or certain chemicals can also contribute. Certain drugs, both prescription and recreational, can have harmful effects on the developing fetus. Additionally, infections during pregnancy, such as rubella or Zika virus, can lead to birth defects. Therefore, it is important to consider all of these factors when assessing the risk of malformation in an unborn child.

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  • 9. 

    Fetal Alcohol Symptoms (FAS) in an infant can be a result of the mother

    • Contracting infections

    • Persisting in alcohol consumptions

    • Contracting syphilis

    • Being exposed to measles

    Correct Answer
    A. Persisting in alcohol consumptions
    Explanation
    Fetal alcohol symptoms (FAS) in an infant occur when the mother continues to consume alcohol during pregnancy. Alcohol can cross the placenta and affect the developing fetus, leading to a range of physical, cognitive, and behavioral abnormalities. Persistent alcohol consumption during pregnancy is known to be a major risk factor for FAS.

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  • 10. 

    The orthodontic team consists of the

    • Dentist

    • Receptionist and business staff

    • Laboratory technician

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The orthodontic team is a collaborative group that includes several key professionals, each playing a unique role in providing orthodontic care. The dentist or orthodontist leads treatment planning and manages patient care, ensuring proper alignment and oral health. The receptionist and business staff handle patient scheduling, billing, and administrative tasks, ensuring the practice runs smoothly. The laboratory technician is responsible for creating custom appliances, such as braces, retainers, and other orthodontic devices, according to the orthodontist's specifications. Each team member's role is essential to delivering high-quality care and achieving successful treatment outcomes in orthodontics.

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  • 11. 

    A behavior management technique called __ consists of telling the child the name of the instruments, showing it to the child, and then demonstrating how it is used.

    • Voice control

    • Subjective

    • Nonverbal

    • Tell, show, and do

    Correct Answer
    A. Tell, show, and do
    Explanation
    The behavior management technique described in the question involves three steps: telling the child the name of the instruments, showing the instruments to the child, and demonstrating how they are used. This technique is known as "tell, show, and do." It is a hands-on approach that helps the child understand and learn by providing verbal instructions, visual demonstrations, and active participation. By following these steps, the child can better comprehend and remember the information being taught.

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  • 12. 

    Children who are involved in contact sports should be fitted for

    • Fixed spaced maintainers

    • Removable space maintainers

    • Dental matrices

    • Mouth guards

    Correct Answer
    A. Mouth guards
    Explanation
    Children who are involved in contact sports should be fitted for mouth guards because mouth guards provide protection for the teeth and mouth during physical activities. They help to absorb and distribute the impact of blows or hits to the face, reducing the risk of dental injuries such as broken teeth, jaw fractures, or soft tissue damage. Mouth guards also help to prevent concussions by cushioning the impact and reducing the force transmitted to the head. Therefore, wearing mouth guards is essential to ensure the safety and oral health of children participating in contact sports.

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  • 13. 

    An endodontist handles

    • Oral care in children

    • Removal of 3rd molars

    • Root canal therapy

    • Removal of calculus

    Correct Answer
    A. Root canal therapy
    Explanation
    An endodontist specializes in root canal therapy, which involves treating the innermost part of the tooth known as the pulp. This procedure is performed to save a tooth that is infected or severely decayed. The endodontist removes the infected pulp, cleans and disinfects the root canal, and then fills and seals it. This treatment helps to alleviate pain and prevent further damage to the tooth, allowing the patient to maintain their natural tooth rather than having it extracted.

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  • 14. 

    Orthodontics is the specialty of performing

    • Root canal therapy

    • Straightening of the teeth

    • Extraction of 3rd molars

    • Treatment of surrounding tissues

    Correct Answer
    A. Straightening of the teeth
    Explanation
    Orthodontics is the specialty of straightening teeth. This involves the diagnosis, prevention, and treatment of dental and facial irregularities. Orthodontists use braces, aligners, and other appliances to gradually move teeth into their proper position. By straightening the teeth, orthodontics aims to improve both the appearance and functionality of the patient's smile.

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  • 15. 

    The modified pen grasp provides more control and strength in some procedures.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The modified pen grasp refers to a technique of holding a pen or instrument in a slightly different way to enhance control and strength during certain procedures. This modified grip allows for better precision and stability, which can be particularly beneficial in delicate or intricate tasks. Therefore, it is true that the modified pen grasp provides more control and strength in some procedures.

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  • 16. 

    Selecting the correct instrument grasp allows.

    • The operator control of the instrument

    • Greater tactile sensation for the operator

    • Reduced fatigue for the operator

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Selecting the correct instrument grasp provides the operator with better control of the instrument, enhances tactile sensation, and reduces fatigue during procedures. This ensures that the operator can work more efficiently and comfortably, leading to improved precision and less strain during dental treatments.

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  • 17. 

    The specialty concerned with the diagnosis and treatment of the diseases of the supporting and surrounding tissues of the tooth is

    • Endodontics

    • Orthodontics

    • Periodontics

    • Pediatric dentistry

    Correct Answer
    A. Periodontics
    Explanation
    Periodontics is the specialty concerned with the diagnosis and treatment of the diseases of the supporting and surrounding tissues of the tooth, such as the gums, periodontal ligament, and alveolar bone. This branch of dentistry focuses on preventing, diagnosing, and treating conditions like gum inflammation (gingivitis) and periodontitis, which can lead to tooth loss if left untreated. Periodontists are experts in performing procedures like scaling and root planing, gum grafting, and dental implant placement to restore and maintain oral health.

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  • 18. 

    Dental assistants should be aware of a patient demonstrating nonverbal communication. Which of the following expressions are considered nonverbal communication?

    • Facial expressions

    • Tightening of hands on the chair arm

    • Muffled noise made by the patient

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Dental assistants should be aware of a patient demonstrating nonverbal communication because it can provide important cues about the patient's comfort level, pain, or anxiety. Facial expressions can convey a range of emotions, such as fear or discomfort. The tightening of hands on the chair arm can indicate nervousness or tension. The muffled noise made by the patient can suggest pain or discomfort. Therefore, all of these expressions are considered nonverbal communication and can help dental assistants understand and respond to the patient's needs effectively.

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  • 19. 

    Anatomy means the study of body structure.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement "anatomy means the study of body structure" is true. Anatomy is a branch of science that focuses on the structure and organization of living organisms, including humans. It involves studying the different parts of the body, their relationships, and how they function together. By examining the anatomy of various organisms, scientists can gain a deeper understanding of their physical structures and how they contribute to overall function and health.

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  • 20. 

    The decor of the following rooms should be changed as often as needed to keep the atmosphere friendly and positive for patients as they enter the dental office.

    • Restroom

    • Dentist's private office

    • Reception room

    • Sterilizing area

    Correct Answer
    A. Reception room
    Explanation
    The reception room of a dental office should be changed as often as needed to keep the atmosphere friendly and positive for patients as they enter. This is because the reception room is the first area that patients encounter when they arrive at the dental office, and it sets the tone for their overall experience. By regularly updating the decor of the reception room, the dental office can create a welcoming and comforting environment that helps to alleviate any anxiety or fear that patients may have. This can contribute to a more positive and pleasant experience for the patients.

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  • 21. 

    The ability of a material to transmit heat is called

    • Dimensional change

    • Microleakage

    • Thermal conductivity

    • Stress and stain

    Correct Answer
    A. Thermal conductivity
    Explanation
    Thermal conductivity refers to the ability of a material to transmit heat. It is a measure of how well a material can conduct heat through it. Higher thermal conductivity means that the material can transfer heat more efficiently. This property is important in various applications, such as in the design of insulation materials or in selecting materials for heat exchangers.

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  • 22. 

    After the premature loss of a primary tooth, which particular fixed appliance is worn to maintain a space for the permanent tooth

    • Bracket

    • Space maintainers

    • Headgear

    • Activator

    Correct Answer
    A. Space maintainers
    Explanation
    After the premature loss of a primary tooth, space maintainers are worn to maintain a space for the permanent tooth. Space maintainers are fixed appliances that help prevent the remaining teeth from shifting into the empty space and ensure that there is enough room for the permanent tooth to erupt properly. They are designed to hold the space until the permanent tooth is ready to come in, preventing the need for more extensive orthodontic treatment in the future.

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  • 23. 

    Which of the following is an ideal occlusion relationship

    • Transversion of on tooth

    • Labial or buccal version toward the lip

    • Maxillary and mandibular teeth are in maximum contact and normally spaced

    • Infraversion in the arch

    Correct Answer
    A. Maxillary and mandibular teeth are in maximum contact and normally spaced
    Explanation
    The ideal occlusion relationship refers to the perfect alignment and contact between the upper (maxillary) and lower (mandibular) teeth. When the maxillary and mandibular teeth are in maximum contact and normally spaced, it indicates a balanced occlusion, which allows for proper chewing, speaking, and overall oral function. This alignment ensures that the forces exerted during biting and chewing are evenly distributed, preventing any excessive stress on individual teeth or the jaw joint.

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  • 24. 

    Which specialty practice provides dental care for children and the compromised child patient?

    • Orthdontics

    • Pedodontics

    • Endodontics

    • General dentistry

    Correct Answer
    A. Pedodontics
    Explanation
    Pedodontics is the correct answer because it is the specialty practice that focuses on providing dental care specifically for children and compromised child patients. This branch of dentistry involves specialized training and techniques to address the unique needs and challenges that children may have in relation to their oral health. Pedodontists are skilled in treating dental issues in children, such as tooth decay, gum diseases, and developmental problems, ensuring that they receive appropriate and age-appropriate dental care.

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  • 25. 

    Common treatments that fall under corrective orthodontics include which of the following

    • Braces

    • Bands

    • Retainers

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Corrective orthodontics is a branch of dentistry that focuses on correcting misalignments and irregularities in the teeth and jaw. Braces, bands, and retainers are all common treatments used in corrective orthodontics. Braces are used to straighten teeth and correct bite issues, while bands are used to anchor braces and apply pressure to move teeth. Retainers are used after braces to maintain the corrected position of the teeth. Therefore, all of the above options are correct treatments that fall under corrective orthodontics.

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  • 26. 

    The basic unit of all biological systems and the smallest functioning unit of the body is called a

    • Cell

    • Tissue

    • Organ

    • Muscle

    Correct Answer
    A. Cell
    Explanation
    The basic unit of all biological systems and the smallest functioning unit of the body is called a cell. Cells are the building blocks of life and perform various functions within the body. They can be found in all living organisms and are responsible for carrying out essential processes such as metabolism, growth, and reproduction. Cells can also specialize and form different types of tissues, organs, and muscles, but at their core, they are the fundamental units that make up all living organisms.

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  • 27. 

    The way an instrument is grasped also dictates how it is exchanged.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement suggests that the way an instrument is held or grasped determines how it is passed or exchanged. This implies that the grip or technique used to hold the instrument can impact the efficiency and effectiveness of exchanging it between individuals. Therefore, the statement is true as it highlights the importance of proper handling and grip in instrument exchange.

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  • 28. 

    The sectional matrix system benefits tooth contour by

    • Restoring anatomic contacts

    • Stabilizing matrix

    • Producing tight contact

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The sectional matrix system benefits tooth contour by restoring anatomic contacts, stabilizing the matrix, and producing tight contact. This means that it helps in recreating the natural shape and alignment of the teeth, providing stability to the dental matrix, and ensuring a secure and precise fit between the teeth. All of these benefits contribute to improving the overall appearance and functionality of the teeth.

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  • 29. 

     _____ means that the tooth is tipping in a distal direction.

    • Linguoversion

    • Distoversion

    • Mesioversion

    • Infraversion

    Correct Answer
    A. Distoversion
    Explanation
    Distoversion is a dental term used to describe the misalignment of a tooth when it is tipped or angled toward the distal side, which is the direction away from the center of the dental arch or the midline of the face. In simpler terms, this means the tooth is leaning backward or away from the front of the mouth. It’s a common form of malposition that can affect the overall bite alignment and may require orthodontic correction depending on the severity.

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  • 30. 

    The office manual must have a HIPAA plan with dates of training for each employees

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The explanation for the given correct answer is that HIPAA (Health Insurance Portability and Accountability Act) requires organizations handling protected health information to have a HIPAA plan in place. This plan should include training for employees on HIPAA regulations. The office manual should document these training dates for each employee to ensure compliance with HIPAA requirements. Therefore, the statement is true.

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  • 31. 

    Delegated functions that require increased responsibility and skill are called

    • Expanded function

    • Dental jurisprudence

    • Laws

    • Contracts

    Correct Answer
    A. Expanded function
    Explanation
    Delegated functions that require increased responsibility and skill are referred to as expanded functions. This term is commonly used in the field of dentistry to describe tasks that go beyond the basic duties of a dental professional. These expanded functions may include procedures such as administering anesthesia, placing fillings, or performing certain surgical procedures. By using the term "expanded function," it indicates that these tasks require additional training and expertise compared to regular dental functions.

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  • 32. 

    A reclined position with the nose and knees on the same plane may be called a supine position.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A reclined position where the nose and knees are on the same plane is called a supine position. In a supine position, the person lies flat on their back with their face and abdomen facing upward. This is the opposite of a prone position, where the person lies flat on their stomach. Therefore, the statement is true.

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  • 33. 

    Proper instrument transfer is accomplished when which of the following is maintained.

    • The operator's view remains on the oral cavity

    • Safety and comfort are maintained for the patient

    • Stress and fatigue for the operator and the assistant are reduced

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Proper instrument transfer is accomplished when all of the above conditions are maintained. This means that the operator's view should remain on the oral cavity, ensuring accurate placement of instruments. Safety and comfort for the patient should also be prioritized, ensuring a smooth and pain-free experience. Additionally, reducing stress and fatigue for both the operator and the assistant is important to maintain efficiency and prevent errors during the procedure.

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  • 34. 

    Keeping the sealant procedure area dry is accomplished by

    • Asking the patient to keep the tongue still

    • Placing cotton rolls on both the buccal and lingual of the mandibular

    • Placing cotton rolls on the buccal of the maxillary

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "all of the above." Keeping the sealant procedure area dry is essential for the success of the procedure. Asking the patient to keep the tongue still helps prevent saliva from contaminating the area. Placing cotton rolls on both the buccal and lingual of the mandibular and on the buccal of the maxillary helps absorb excess saliva and keep the area dry. By combining all of these actions, the sealant procedure area can be kept dry, ensuring optimal conditions for the sealant application.

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  • 35. 

    Microorganisms may be missed because they appear as a mist or dry clear on the surfaces that are touched.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Microorganisms may be missed because they appear as a mist or dry clear on the surfaces that are touched. This means that they are not visible to the naked eye and can easily go unnoticed. It is important to practice good hygiene and regularly clean and disinfect surfaces to prevent the spread of these invisible microorganisms.

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  • 36. 

    ____ are placed in the contact area between the teeth, forcing the teeth to spread to accommodate the orthodontic bands.

    • Separators

    • Plastic rings

    • Brackets

    • Springs

    Correct Answer
    A. Separators
    Explanation
    Separators are placed in the contact area between the teeth to create space and make room for orthodontic bands. These separators exert pressure on the teeth, causing them to spread apart and accommodate the bands. Separators are typically small elastic rings or metal springs that are inserted between the teeth by the orthodontist before the placement of bands.

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  • 37. 

    Which dentistry specialty deals with the recognition, prevention, and treatment of malalignment and irregularities of the teeth, jaws, and face?

    • Endodontics

    • Radiology

    • Oral pathology

    • Orthodontics

    Correct Answer
    A. Orthodontics
    Explanation
    Orthodontics is the correct answer because it is the dentistry specialty that focuses on the recognition, prevention, and treatment of malalignment and irregularities of the teeth, jaws, and face. Orthodontists use braces, aligners, and other devices to correct these issues and improve the alignment and appearance of the teeth and jaw.

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  • 38. 

    Physiology is the study of how the body functions.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Physiology is indeed the study of how the body functions. It focuses on understanding the mechanisms and processes that occur within living organisms, including humans, to maintain homeostasis and carry out various bodily functions. This field of study involves examining the functions of organs, tissues, cells, and molecules, as well as the interactions between different systems in the body. By studying physiology, scientists and healthcare professionals gain valuable insights into the normal functioning of the body and can better understand and treat diseases and disorders.

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  • 39. 

    To ensure contact with the adjacent tooth, the Tofflemire matrix band?

    • Needs to be contoured

    • Requires application of pressure with a burnisher

    • With explorer indicates no gap between band and preparation

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "all of the above." This means that in order to ensure contact with the adjacent tooth, the tofflemire matrix band needs to be contoured, requires application of pressure with a burnisher, and with an explorer indicates no gap between the band and preparation. All of these actions are necessary to ensure a proper fit and seal between the matrix band and the tooth being prepared.

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  • 40. 

    Asepsis means the creation of an environment free of disease causing microorganisms.

    • True

    • False

    Correct Answer
    A. True
    Explanation
     Asepsis refers to the process of creating and maintaining an environment that is free from disease-causing microorganisms. This means taking measures to prevent the introduction or spread of harmful bacteria, viruses, and other pathogens. By practicing asepsis, healthcare professionals can reduce the risk of infections and ensure the safety of patients. Therefore, the statement "asepsis means the creation of an environment free of disease-causing microorganisms" is true.

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  • 41. 

    What is the purpose of a "bitewing" X-ray in dental diagnostics?

    • To evaluate the temporomandibular joint (TMJ)

    • To assess the height of bone loss in periodontal disease

    • To examine interproximal areas between teeth for cavities

    • To view the root structure of a tooth for possible abscesses

    Correct Answer
    A. To examine interproximal areas between teeth for cavities
    Explanation
    Bitewing X-rays are a common diagnostic tool in dentistry used to examine the interproximal areas between teeth, which are the spaces between adjacent teeth that are difficult to inspect visually. These X-rays are essential for detecting cavities (caries) that may form between teeth, where toothbrush bristles cannot reach. Bitewings also help assess the height of the bone surrounding the teeth, which can reveal signs of periodontal disease or bone loss. Although bitewings are not used to view the root structure or TMJ directly, they are invaluable in detecting early stages of decay and evaluating the overall health of the tooth and supporting structures.

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  • 42. 

    The __ wraps around the bracket and is tightened by twisting.

    • Archwire

    • Ligature wire

    • Spring

    • Separator

    Correct Answer
    A. Ligature wire
    Explanation
    A ligature wire is a thin wire that is used in orthodontics to secure the archwire to the brackets. It wraps around the bracket and is tightened by twisting, providing stability and allowing for proper alignment of the teeth. This wire is commonly used during the treatment process to hold the archwire in place and facilitate the movement of the teeth.

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  • 43. 

    Dentists should report suspicious signs of child abuse to a 

    • Social service agency

    • Local police department

    • Child protective services

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Dentists should report suspicious signs of child abuse to all of the above options, which includes social service agencies, local police departments, and child protective services. This is because dentists are mandated reporters and have a legal and ethical responsibility to report any suspected cases of child abuse. By reporting to these different authorities, dentists ensure that the appropriate agencies are notified and can take the necessary actions to protect the child's well-being.

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  • 44. 

    The ADAA represents

    • Laboratory technician

    • Hygienists

    • Assistants

    • Dentists

    Correct Answer
    A. Assistants
    Explanation
    The American Dental Assistants Association (ADAA) is a professional organization that represents and advocates for dental assistants. Dental assistants are healthcare professionals who work alongside dentists to provide patient care, perform administrative tasks, and assist with various dental procedures.

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  • 45. 

    Cancellous bone consists of a meshwork of interconnecting bone called trabeculae.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Cancellous bone, also known as spongy or trabecular bone, is a type of bone tissue that is characterized by a meshwork of interconnecting bone called trabeculae. These trabeculae form a lattice-like structure that provides strength and support to the bone. Cancellous bone is found in the interior of bones and is responsible for the production of red blood cells and storage of bone marrow. Therefore, the statement that cancellous bone consists of a meshwork of interconnecting bone called trabeculae is true.

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  • 46. 

    Updating the patient's health history at each appointment is necessary. Information should be updated both in writing and 

    • Fax transmission

    • Over the phone

    • Verbally

    • Email

    Correct Answer
    A. Verbally
    Explanation
    Updating the patient's health history at each appointment is necessary because it allows healthcare providers to have the most up-to-date information about the patient's medical conditions, medications, allergies, and any other relevant details. Verbal communication is important in this process as it allows for immediate clarification and follow-up questions, ensuring that all necessary information is accurately recorded. Additionally, verbal communication allows for a more personalized and comprehensive understanding of the patient's health history, as it allows for the patient to provide additional context or details that may be important for their care.

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  • 47. 

    During handwashing procedure, proper chemical antisepsis is accomplished with

    • Chlorhexidine digluconate

    • Triclosan

    • Para chlorometaxylenol

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
     All of the above options, including chlorhexidine digluconate, triclosan, and para chlorometaxylenol, can be used for proper chemical antisepsis during handwashing procedures. These chemicals have antimicrobial properties that help to kill or inhibit the growth of microorganisms on the skin, reducing the risk of infection. Using any of these options can effectively disinfect the hands and maintain proper hand hygiene.

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  • 48. 

    Which of the following is softer than enamel but harder than cementum and bone

    • Dentin

    • Fibroblast

    • Osteoblast

    • Osteoclast

    Correct Answer
    A. Dentin
    Explanation
    Dentin is the correct answer because it is a hard tissue that forms the bulk of the tooth and is softer than enamel, which is the outermost layer of the tooth. Dentin is also harder than cementum and bone, which are other hard tissues found in the body.

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  • 49. 

    Which dental dam instrument has a working end that is a sharp projection used to provide holes in the dam

    • Clamp

    • Punch

    • Forceps

    • Pliers

    Correct Answer
    A. Punch
    Explanation
    A dental dam punch is a dental instrument with a sharp projection on its working end. This sharp projection is used to create holes in the dental dam, allowing it to be securely placed over the teeth during dental procedures. The punch is specifically designed for this purpose, making it the correct answer in this case.

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Benjamin Yoon |DMD (Dentistry) |
General Dentist
Benjamin Yoon earned his Doctor of Dental Medicine (DMD) from Nova Southeastern University College of Dental Medicine, equipping him with the necessary expertise and skills to excel in the field of dentistry. He is currently serving as a general dentist in the US Army.

Quiz Review Timeline (Updated): Dec 13, 2024 +

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

  • Current Version
  • Dec 13, 2024
    Quiz Edited by
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    Expert Reviewed by
    Benjamin Yoon
  • Apr 17, 2012
    Quiz Created by
    Frijolehan

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