MCQs 100 Pediatric Dentistry II Dr. Soun Monika 2019

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  • 1/99 Questions

    Chlorhexidine solution:?

    • Is antibacterial mouth wash
    • Can remove calculus
    • Can cause bleaching of the teeth
    • Can cause sensitivity teeth
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About This Quiz

This quiz titled 'MCQs 100 Pediatric Dentistry II Dr. Soun Monika 2019' assesses knowledge on pediatric dental care, including tooth eruption timelines, cleaning practices, dental materials, and preventative treatments. It's designed for dental students focusing on pediatric dentistry.

MCQs 100 Pediatric Dentistry II Dr. Soun Monika 2019 - Quiz

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  • 2. 

    Which instrument not for ART?

    • Slow speed hand pice

    • Mouth mirror

    • Tweezers

    • Spoon excavator and probe

    Correct Answer
    A. Slow speed hand pice
    Explanation
    The slow speed hand piece is the only instrument listed that is not typically used for dental ART (atraumatic restorative treatment). ART is a minimally invasive approach to dental treatment that focuses on preserving as much healthy tooth structure as possible. The mouth mirror, tweezers, spoon excavator, and probe are all commonly used in ART procedures to examine and prepare the tooth, remove decay, and restore the tooth using restorative materials. The slow speed hand piece, on the other hand, is typically used for other types of dental procedures such as drilling and shaping the tooth.

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  • 3. 

    Which instrument for ART?

    • Answer 1,2,3 and 4 are correct

    • Mouth mirror 1

    • Probe 2

    • Tweezers 3

    • Spoon excavator 4

    Correct Answer
    A. Answer 1,2,3 and 4 are correct
    Explanation
    The correct answer is that all of the instruments mentioned (mouth mirror, probe, tweezers, and spoon excavator) can be used for ART (Atraumatic Restorative Treatment). Each instrument serves a specific purpose in the ART procedure, such as examining the teeth (mouth mirror), detecting caries (probe), removing caries (spoon excavator), and handling materials (tweezers).

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  • 4. 

    Which instrument not for ART?

    • High speed hand pice

    • Mouth mirror

    • Tweezers and spoon excavator

    • Probe

    Correct Answer
    A. High speed hand pice
    Explanation
    The high speed handpiece is not used for ART (Atraumatic Restorative Treatment), which is a minimally invasive dental technique that aims to remove as little healthy tooth structure as possible. The high speed handpiece is typically used for procedures that require cutting or removing a significant amount of tooth structure, such as cavity preparation for fillings or crown preparations. In ART, instruments like the mouth mirror, tweezers and spoon excavator, and probe are commonly used for diagnosis, cleaning, and removing decayed tooth material.

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  • 5. 

    Fluoride can: ?

    • Prevent dental carie

    • Cause the demineralization

    • Cause the bleaching

    • Cause the hypersensitivity

    • All above

    Correct Answer
    A. Prevent dental carie
    Explanation
    Fluoride is known to prevent dental caries or tooth decay. It does so by strengthening the enamel, the outer layer of the teeth, making it more resistant to acid attacks from bacteria and sugars in the mouth. This helps to prevent the demineralization or breakdown of the enamel, which can lead to cavities. Fluoride does not cause bleaching or hypersensitivity. Therefore, the correct answer is that fluoride can prevent dental caries.

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  • 6. 

    Minimal Intervention management is:?

    • Cavity conserving as much tooth structure as possible

    • Cavity extending for prevention

    • Cavity designed of G.V.Black

    Correct Answer
    A. Cavity conserving as much tooth structure as possible
    Explanation
    Minimal Intervention management is a conservative approach that aims to preserve as much of the natural tooth structure as possible when treating dental cavities. This approach focuses on removing only the decayed or damaged portion of the tooth, while leaving the healthy tooth structure intact. By doing so, it minimizes the need for extensive restoration or invasive procedures, resulting in better long-term oral health outcomes for the patient.

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  • 7. 

    What is the difference between pulp chamber of primary teeth and permanent teeth?

    • Bigger in primary teeth

    • Smaller in primary teeth

    • The same in both teeth

    • Absence pulp chamber

    • Less vascular in primary teeth

    Correct Answer
    A. Bigger in primary teeth
    Explanation
    The correct answer is "Bigger in primary teeth". The pulp chamber refers to the space within the tooth that contains the dental pulp, which consists of nerves and blood vessels. In primary teeth, the pulp chamber is relatively larger compared to permanent teeth. This is because primary teeth are smaller in size and have thinner enamel and dentin layers, which results in a larger proportion of the tooth being occupied by the pulp chamber.

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  • 8. 

    Extraction in the mixed dentition?

    • The answer 1,2 and 3 are correct

    • May need a part of orthodontic treatment 1

    • May be caries 2

    • May be trauma 3

    Correct Answer
    A. The answer 1,2 and 3 are correct
    Explanation
    The answer 1, 2, and 3 are correct because extraction in the mixed dentition may be necessary as part of orthodontic treatment, it may be due to caries (tooth decay), or it may be a result of trauma.

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  • 9. 

    Fissures sealant use for: ?

    • Sound primary and permanent molars with deep pits and fissures

    • Molars with small cavity

    • Demineralized area of the teeth

    • Cavity with stain on the occlusal surface

    Correct Answer
    A. Sound primary and permanent molars with deep pits and fissures
    Explanation
    Fissure sealants are used to protect sound primary and permanent molars with deep pits and fissures. These deep grooves on the chewing surfaces of the teeth can be difficult to clean properly, making them more susceptible to decay. By applying a sealant, a thin protective coating, to these areas, the risk of cavities forming is reduced. It acts as a barrier, preventing food particles and bacteria from getting trapped in the pits and fissures, thus helping to maintain the overall oral health of the teeth.

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  • 10. 

    Bacteria cause tooth decay: ?

    • Mutans streptococcus

    • Lactobacillus

    • Staphylococcus

    • Fusiform bateria

    • Spirochaetes

    Correct Answer
    A. Mutans streptococcus
    Explanation
    Mutans streptococcus is the correct answer because it is a type of bacteria that is primarily responsible for tooth decay. It is commonly found in the mouth and feeds on sugars, producing acids that erode tooth enamel and lead to the formation of cavities. This bacteria attaches to the teeth and forms a sticky biofilm called dental plaque, which provides an ideal environment for acid production and tooth decay. Therefore, the presence of Mutans streptococcus is closely associated with the development of dental caries.

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  • 11. 

    What is the difference between primary teeth and permanent teeth?

    • The deciduous crown is more bulbous, the deciduous enamel in thinner and appear whiter and the root of deciduous molar can be fins multiple canals and ramifications

    • The deciduous crown is more bulbous

    • The deciduous enamel in thinner and appear whiter

    • The root of deciduous molar can be fins multiple canals and ramifications

    Correct Answer
    A. The deciduous crown is more bulbous, the deciduous enamel in thinner and appear whiter and the root of deciduous molar can be fins multiple canals and ramifications
    Explanation
    The primary teeth, also known as deciduous teeth or baby teeth, have a more bulbous crown compared to permanent teeth. The enamel of primary teeth is thinner and appears whiter. Additionally, the root of a primary molar can have multiple canals and ramifications. These differences distinguish primary teeth from permanent teeth.

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  • 12. 

    The cause of early childhood carie :?

    • Frequencies of demand, Sweet drink and Feeding at night

    • Frequencies of demand

    • Sweet drink

    • Feeding at night

    • Water

    Correct Answer
    A. Frequencies of demand, Sweet drink and Feeding at night
    Explanation
    The correct answer is Frequencies of demand, Sweet drink and Feeding at night. This answer suggests that the cause of early childhood caries (tooth decay) is the combination of frequent demand for food, consumption of sweet drinks, and feeding at night. These factors contribute to prolonged exposure of the teeth to sugars and acids, leading to tooth decay. Water is not mentioned as a cause in this answer.

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  • 13. 

    The primary teeth should be cleaned?

    • After the 1st teeth erupted

    • After the primary teeth are erupted

    • In the mixed dentition

    • After the full dentition

    Correct Answer
    A. After the 1st teeth erupted
    Explanation
    It is important to start cleaning a baby's primary teeth as soon as the first teeth erupt. This helps to establish good oral hygiene habits early on and prevents the buildup of plaque, which can lead to cavities and other dental issues. Regular cleaning should continue as more primary teeth come in, ensuring that the child's teeth remain healthy.

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  • 14. 

    After extraction of primary teeth the socket should :?

    • Stop bleeding with gauge

    • Be curetted

    • Be sutured

    • Be curetted, Be sutured and Stop bleeding with gauge

    • Be curetted and Be sutured

    Correct Answer
    A. Stop bleeding with gauge
    Explanation
    After extraction of primary teeth, it is important for the socket to stop bleeding with gauge. This is necessary to prevent excessive bleeding and promote the healing process. The use of a gauge helps to apply pressure on the socket, which in turn helps to control and stop the bleeding. It is a common practice in dental procedures to use a gauge to manage bleeding and ensure proper healing.

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  • 15. 

    Treating children is different from treating adult, the dentist should :?

    • Be friendly to the child and Understanding the intellectual development

    • Ask the parent more information about child

    • Be friendly to the child

    • Understanding the intellectual development

    • Frighten the child when he/she rejects the treatment

    Correct Answer
    A. Be friendly to the child and Understanding the intellectual development
    Explanation
    When treating children, it is important for the dentist to be friendly and understanding towards the child. Children may be scared or anxious about dental treatments, so being friendly helps to create a comfortable and positive environment. Additionally, understanding the intellectual development of the child is crucial as it helps the dentist to communicate effectively and adapt the treatment approach accordingly. Asking the parent for more information about the child can also provide valuable insights, but it is not as essential as being friendly and understanding. Frightening the child when they reject the treatment is not a suitable approach and goes against creating a positive experience for the child.

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  • 16. 

    Which age of children that we can use fissure sealant?

    • Age 6-9

    • Age 15

    • Age 14

    • Age 9-10

    Correct Answer
    A. Age 6-9
    Explanation
    Fissure sealants are used to protect the grooves and pits on the chewing surfaces of teeth from decay. These grooves are most susceptible to cavities in children as they are difficult to clean properly. Age 6-9 is the correct answer because this is the age range when children's permanent molars and premolars have erupted, and fissure sealants are most commonly applied to these teeth. Applying sealants at this age helps to prevent decay and maintain good oral health in children.

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  • 17. 

    Which dental material has fluoride released?

    • Glass ionomer cement

    • Amalgam

    • Composite resin

    • Intermediate restorative material

    • Fissure sealant

    Correct Answer
    A. Glass ionomer cement
    Explanation
    Glass ionomer cement is a dental material that releases fluoride. Fluoride is a mineral that helps to prevent tooth decay by strengthening the enamel and making it more resistant to acid attacks from bacteria and plaque. Glass ionomer cement contains fluoride as part of its composition, and when it comes into contact with saliva or water, it releases fluoride ions. This continuous release of fluoride helps to provide long-term protection against tooth decay.

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  • 18. 

    Tooth coloration appeared on enamel opaque, white spot with diffusion striation to a brown mottling is result of ?

    • Dental fluorosis

    • Amalogenesis imperfecta

    • Dentinogenesis imperfecta

    • Tetracycline staining

    • Hyperplasia

    Correct Answer
    A. Dental fluorosis
    Explanation
    Tooth coloration appearing as an opaque, white spot with diffusion striation to a brown mottling is a characteristic of dental fluorosis. Dental fluorosis is caused by excessive intake of fluoride during tooth development, leading to the formation of enamel that is discolored and has a mottled appearance. Amalogenesis imperfecta, dentinogenesis imperfecta, tetracycline staining, and hyperplasia do not specifically result in this type of tooth discoloration.

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  • 19. 

    A child comes to see you for dental checkup. There are no cavity but you see some area of the demineralization. What will you do?

    • Dentist applies fl varish

    • Tell the child brushing the teeth twice a day

    • Tell the child reduce sweet thing

    • No recommended

    Correct Answer
    A. Dentist applies fl varish
    Explanation
    The correct answer is "Dentist applies fl varnish." When a dentist notices areas of demineralization on a child's teeth, it indicates early signs of tooth decay. Applying fluoride varnish helps to strengthen the tooth enamel and prevent further damage. It is a common preventive measure used by dentists to protect teeth from cavities.

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  • 20. 

    Why we do fissure sealant ?

    • The answer 1,2 and 3 are correct

    • Tooth have deep fissure 1

    • Children not brush well 2

    • To prevent caries 3

    Correct Answer
    A. The answer 1,2 and 3 are correct
    Explanation
    Fissure sealants are done to prevent caries (tooth decay) in children. The deep fissures in the teeth can easily trap food particles and bacteria, making them more prone to decay. Additionally, children may not brush their teeth well, which further increases the risk of caries. By applying fissure sealants, the deep fissures are sealed off, preventing food and bacteria from getting trapped and reducing the risk of tooth decay.

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  • 21. 

    Fluoride varnish can:?

    • Prevent dental carie and Prevent the hyper sensitivity

    • Prevent dental carie

    • Cause the hyper sensitivity

    • Prevent the hyper sensitivity

    • Prevent dental carie and Cause the hyper sensitivity

    Correct Answer
    A. Prevent dental carie and Prevent the hyper sensitivity
    Explanation
    Fluoride varnish is a dental treatment that helps prevent dental caries, also known as tooth decay. It achieves this by strengthening the enamel and making it more resistant to acid attacks from bacteria in the mouth. Additionally, fluoride varnish can also help prevent tooth sensitivity by forming a protective barrier on the teeth, reducing the exposure of sensitive nerve endings to external stimuli such as hot or cold temperatures. Therefore, the correct answer is that fluoride varnish can prevent dental caries and prevent tooth sensitivity.

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  • 22. 

    Which dental material is shrinkage after filling cavity: ?

    • Composite

    • Glass ionomer cement

    • Amalgam

    • Resin sealant

    • Protective fissure sealant

    Correct Answer
    A. Composite
    Explanation
    Composite is the correct answer because it is a dental material that undergoes shrinkage after filling a cavity. When composite is placed in a cavity and cured with a light, it undergoes a process called polymerization, where it hardens and shrinks. This shrinkage can lead to gaps between the composite and the tooth structure, which can compromise the integrity of the restoration and potentially lead to leakage and recurrent decay. To minimize the effects of shrinkage, techniques such as incremental layering and the use of a curing light with a longer curing time can be employed.

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  • 23. 

    The children come to meet you. How to communicate and get the successful treatment? 1.Be friendly to the child 2.Use the technique Tell, Show, Do 3.Show respect and treat them as an individual 4.Treat them as the adults 5.Make them fear and tell lies

    • 1, 2, 3

    • 1, 2

    • 1, 2, 4

    • 4, 5

    • All are corrects

    Correct Answer
    A. 1, 2, 3
    Explanation
    To successfully communicate and provide treatment to children, it is important to be friendly towards them, use the technique of Tell, Show, Do, and show respect by treating them as individuals. Being friendly helps to establish trust and a positive rapport with the child, making them more receptive to treatment. The Tell, Show, Do technique involves explaining the procedure to the child, demonstrating it, and then performing it. This helps to reduce anxiety and fear. Treating children as individuals and showing respect acknowledges their autonomy and promotes their cooperation.

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  • 24. 

    Advice to the children about toothbrushing at night:?

    • Brushing the teeth with fluoride toothpaste keep it in the mouth for one minute split out but do not rinse before going to bed

    • Brush the teeth carefully with fluoride toothpaste after dinner

    • Flossing brushing the teeth with toothpaste after eating

    Correct Answer
    A. Brushing the teeth with fluoride toothpaste keep it in the mouth for one minute split out but do not rinse before going to bed
    Explanation
    The correct answer is to brush the teeth with fluoride toothpaste, keep it in the mouth for one minute, spit out but do not rinse before going to bed. This is because fluoride toothpaste helps to strengthen the teeth and prevent tooth decay. Keeping the toothpaste in the mouth for one minute allows the fluoride to have maximum contact with the teeth. Spitting out the toothpaste without rinsing ensures that the fluoride continues to protect the teeth throughout the night.

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  • 25. 

    The effective way of tooth brushing to the children:

    • Demonstrating and following up the children until they can do themselves

    • Education to the parents

    • Education to the child

    • Education to the parents and child

    • Demonstrate the posters to the child

    Correct Answer
    A. Demonstrating and following up the children until they can do themselves
    Explanation
    The most effective way of tooth brushing for children is to demonstrate the proper technique and then follow up with them until they are able to do it themselves. This ensures that they are learning the correct method and can maintain good oral hygiene. Educating the parents and the child is also important, but the key is to actively involve the children in the process and provide ongoing support and guidance. Demonstrating posters can be helpful, but it is not as effective as hands-on instruction and supervision.

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  • 26. 

    The first molars of a child 7 years old has deep fissure with stain, the bitewing radiograph. Showing that the dentino enamol junction in normal which material should use :?

    • Fissure sealant

    • Glass ionomer cement

    • Composite resin

    • Fluoride varnish

    • No recommended treatment

    Correct Answer
    A. Fissure sealant
    Explanation
    The correct answer is fissure sealant. Fissure sealants are commonly used to protect the deep fissures and grooves on the chewing surfaces of molars in children. These sealants are applied to prevent food and bacteria from getting trapped in these areas, reducing the risk of tooth decay. In this case, the presence of deep fissures with stain suggests that the dentinoenamel junction is normal, indicating that a fissure sealant would be the appropriate material to use for preventive treatment.

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  • 27. 

    Who can benefit from ART?

    • Answer 1,2 and 3 are correct

    • Young children 1

    • Very anxious patients 2

    • People in nursing home 3

    • Answer 1 and 2

    Correct Answer
    A. Answer 1,2 and 3 are correct
    Explanation
    ART, or Art Therapy, can benefit a wide range of individuals. Young children can benefit from ART as it provides a creative outlet for self-expression and can help them process and communicate their emotions. Very anxious patients can also benefit from ART as it can help reduce anxiety and provide a calming and relaxing experience. People in nursing homes can benefit from ART as it can improve their cognitive abilities, enhance their social interactions, and provide a sense of purpose and enjoyment. Therefore, all three options, 1, 2, and 3, are correct.

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  • 28. 

    After you apply fuji IX with ART what your advice you will tell patient?

    • Not eat or drink for 1 hours

    • Not eat or drink for 3 hours

    • Not eat or drink for 2 hours

    Correct Answer
    A. Not eat or drink for 1 hours
    Explanation
    After applying fuji IX with ART, it is advised for the patient to not eat or drink for 1 hour. This is important because it allows the material to set and harden properly without being disturbed by food or liquids. Waiting for this duration ensures the longevity and effectiveness of the treatment.

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  • 29. 

    Which tooth are we use to do sealant?

    • The first molars of permanent teeth

    • The first molars of primary teeth

    • The second molars of permanent teeth

    • The second molars of primary teeth

    Correct Answer
    A. The first molars of permanent teeth
    Explanation
    Sealants are a protective coating applied to the chewing surfaces of teeth to prevent cavities. The first molars of permanent teeth are typically the first permanent teeth to erupt in the mouth, usually around the age of 6. These teeth have deep grooves and pits that make them more susceptible to cavities. Therefore, it is recommended to use sealants on the first molars of permanent teeth to provide added protection against tooth decay.

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  • 30. 

    Child behavior in relation to development two yeas-old?

    • Dental treatment of this age should be accompanied by a parents

    • Dental treatment no need accompanied

    • Dental treatment need accompanied

    • Dental treatment not easy with this age

    Correct Answer
    A. Dental treatment of this age should be accompanied by a parents
    Explanation
    Dental treatment for a two-year-old should be accompanied by a parent. This is because at this age, children may not be able to fully cooperate or understand the dental procedures. Having a parent present can help comfort and support the child during the treatment. Additionally, parents can assist in holding the child still and ensuring their safety during the procedure.

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  • 31. 

    Extraction in the mixed dentition?

    • For purely orthodontic reasons, like crowding

    • Tooth too big

    • Tooth deep caries

    • Tooth crown fracture 1/3

    Correct Answer
    A. For purely orthodontic reasons, like crowding
    Explanation
    Extraction in the mixed dentition may be necessary for purely orthodontic reasons, such as crowding. This means that if there is not enough space in the mouth for all the teeth to properly align, extraction may be recommended to create more space and allow for proper alignment.

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  • 32. 

    Serial extraction?

    • Answer 1,2,and 3

    • Relieve crowding at an early stage 1

    • The permanent teeth can erupt into good alignment 2

    • A voiding the need for later appliance therapy 3

    • Answer 1 and 3

    Correct Answer
    A. Answer 1,2,and 3
    Explanation
    Serial extraction is a procedure used in orthodontics to relieve crowding at an early stage. By removing certain primary teeth, space is created for permanent teeth to erupt into good alignment. This can help avoid the need for later appliance therapy, such as braces or other orthodontic treatments. Therefore, the correct answer is 1, 2, and 3, as all three statements explain the benefits of serial extraction.

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  • 33. 

    Before doing local anesthesia what should you say to the child?

    • Put the tooth asleep and Feel pain like mosquito bite

    • Put the tooth asleep

    • Feel pain like mosquito bite

    • Close your eyes

    • No painful

    Correct Answer
    A. Put the tooth asleep and Feel pain like mosquito bite
    Explanation
    Before doing local anesthesia, it is important to prepare the child for what they will experience. Saying "Put the tooth asleep and Feel pain like mosquito bite" is a good way to explain the process to the child. It informs them that their tooth will be numbed, so they won't feel any pain during the procedure, but they might feel a slight sensation similar to a mosquito bite. This explanation helps to alleviate any fears or concerns the child may have about the anesthesia.

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  • 34. 

    Tooth that erupt within 30 days of birth are called:?

    • Neonatal teeth

    • Natal teeth

    • Primary teeth

    • Prenatal teeth

    Correct Answer
    A. Neonatal teeth
    Explanation
    Neonatal teeth are the correct answer because they are the teeth that emerge within the first 30 days after birth. These teeth can appear in the oral cavity shortly after birth or during the first month, and they are relatively rare. Natal teeth, on the other hand, are the teeth that are present at birth, and primary teeth are the set of teeth that replace the neonatal teeth. Prenatal teeth do not exist as teeth cannot form before birth.

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  • 35. 

    Which cavities are not suitable for ART?

    • Cavities very deep with pulp exposed and painful tooth

    • Cavities not deep

    • Cavities not deep with not painful tooth

    • Cavities deep with painful teeth

    Correct Answer
    A. Cavities very deep with pulp exposed and painful tooth
    Explanation
    Cavities that are very deep with the pulp exposed and causing pain are not suitable for Atraumatic Restorative Treatment (ART). This is because ART involves the removal of decayed tissue and the placement of a filling, which may not be effective or comfortable in cases where the pulp is exposed and the tooth is already painful. In such cases, other dental treatments may be necessary to address the underlying issues and alleviate the pain.

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  • 36. 

    Dental carie progresses when the demineralization is greater than remineralization. What is the level of pH dental carie?

    • 5.5

    • 7.5

    • 7

    • 6.8

    • 5

    Correct Answer
    A. 5.5
    Explanation
    Dental caries, also known as tooth decay, occurs when the demineralization (loss of minerals) of the tooth enamel is greater than remineralization (gain of minerals). The pH level of dental caries is 5.5. This acidic pH level is caused by the bacteria in the mouth that produce acids when they break down sugars and food particles. The acidic environment promotes the demineralization of the tooth enamel, leading to the development of dental caries.

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  • 37. 

    Which cavities are suitable for ART ?

    • Answer 1,2 and 3 are correct

    • Cavities not deep 1

    • Cavities not deep and dental clinic no electricity 2

    • Cavities doesn’t have enough instrument 3

    Correct Answer
    A. Answer 1,2 and 3 are correct
    Explanation
    The answer is correct because all three statements mention the conditions under which ART (Atraumatic Restorative Treatment) is suitable for cavities. According to the statements, cavities that are not deep, cavities in dental clinics without electricity, and cavities that do not have enough instruments are all suitable for ART. Therefore, Answer 1, 2, and 3 are correct.

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  • 38. 

    The answer below is the management of children?

    • Make friend first with children and do the simple one

    • Show children the environment dental office

    • Make friend first with children

    • Hit them and put them on the dental chair

    Correct Answer
    A. Make friend first with children and do the simple one
    Explanation
    The answer "Make friend first with children and do the simple one" is the correct answer because it suggests that building a friendly and trusting relationship with children is important in the management of children in a dental office. By making friends with the children, the dental staff can create a comfortable and relaxed environment for the children, which can help alleviate their fears and anxieties. Additionally, by starting with simple procedures, the children can gradually become more comfortable and familiar with the dental office, making future visits easier.

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  • 39. 

    Which tooth are not sealant?

    • The first molars of permanent teeth big cavities with pulp exposed

    • The first molars and second molars of primary teeth with deep cavities

    • The first molars of permanent teeth are healthy

    • The second molars of permanent teeth are healthy

    Correct Answer
    A. The first molars of permanent teeth big cavities with pulp exposed
    Explanation
    The correct answer is "The first molars of permanent teeth big cavities with pulp exposed." This answer states that the first molars of permanent teeth have big cavities with the pulp exposed. This means that these teeth are not suitable for sealant application because sealants are used to prevent cavities and protect the tooth enamel.

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  • 40. 

    The first teeth affected to Early Childhood Caries:?

    • Primary upper incisors

    • Primary lower incisors

    • Primary upper molars

    • Primary lower molars

    Correct Answer
    A. Primary upper incisors
    Explanation
    Early Childhood Caries refers to tooth decay that occurs in young children, typically between the ages of 1 and 5. The primary upper incisors are the first teeth to erupt in the mouth, making them more susceptible to decay. These teeth are also more exposed to bacteria and food particles, as they are located at the front of the mouth and are used for biting and cutting food. Therefore, it is not surprising that the primary upper incisors are the first teeth to be affected by Early Childhood Caries.

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  • 41. 

    Bottle feeding should be changed to cup:?

    • After 1 year of age

    • At 3 years of age

    • At 5 years of age

    • After 2 years of age

    • After eruption of all the teeth

    Correct Answer
    A. After 1 year of age
    Explanation
    Bottle feeding should be changed to cup after 1 year of age because by this age, most children have developed the necessary oral motor skills to drink from a cup. Additionally, prolonged bottle feeding can lead to dental issues such as tooth decay and malformation of the teeth and jaw. Introducing a cup at this age helps promote independence and healthy oral development.

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  • 42. 

    The ideal restoration of primary teeth after pulp therapy:?

    • Stainless steel crown

    • Amalgam

    • Composite resin

    • Intermediate restorative material (IRM)

    • Glass ionomer cement

    Correct Answer
    A. Stainless steel crown
    Explanation
    The ideal restoration of primary teeth after pulp therapy is a stainless steel crown. This is because stainless steel crowns provide excellent durability and longevity in primary teeth, which are prone to heavy wear and tear. They also provide optimal protection and support to the remaining tooth structure, preventing any further damage or decay. Additionally, stainless steel crowns are easy to place and require minimal tooth preparation, making them a preferred choice for restoring primary teeth after pulp therapy.

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  • 43. 

    If a root tip of primary tooth fractured during extraction it is important to:?

    • Leave it as it is in situ

    • Remove the root tip

    • Remove it and curettage

    • Leave and suture

    Correct Answer
    A. Leave it as it is in situ
    Explanation
    Leaving the fractured root tip in situ is the correct answer because primary teeth have shallow roots and are eventually shed naturally. Removing the root tip may cause unnecessary trauma and damage to the surrounding tissues. Additionally, removing it and performing curettage may also lead to further complications. Leaving the fractured root tip in place and allowing it to naturally shed is the most appropriate course of action in this situation.

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  • 44. 

    The common useful material filling in children?

    • Glass lonomer cement

    • Zinc Oxyde

    • Intermediate Restorative material

    • Composite resin

    • Amalgam

    Correct Answer
    A. Glass lonomer cement
    Explanation
    Glass ionomer cement is a common and useful material for filling in children. It is a type of dental cement that is made of a mixture of glass powder and an organic acid. It is used for various dental applications, including filling cavities in primary teeth. Glass ionomer cement has several advantages in pediatric dentistry, such as its ability to release fluoride, which helps prevent tooth decay, and its ability to bond to both enamel and dentin. Additionally, it has a tooth-colored appearance, making it aesthetically pleasing for children.

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  • 45. 

    Why we do ART ?

    • Mainly occlusal caries not deep

    • Not expensive material

    • Easy to buy material

    • Good material for filling

    Correct Answer
    A. Mainly occlusal caries not deep
    Explanation
    The reason we do ART (Atraumatic Restorative Treatment) is mainly because it is suitable for treating occlusal caries that are not deep. This means that it is a suitable treatment option for cavities that are not too severe or extensive. Additionally, ART is a cost-effective option as it does not require expensive materials. The materials used in ART are also easily accessible, making it convenient for dental practitioners to perform the treatment. Lastly, ART is considered a good material for filling as it provides a durable and long-lasting restoration for the tooth.

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  • 46. 

    Eruption of primary lateral incisor begins:?

    • 7months – 10months

    • 6 months – 9months

    • 16months – 20months

    • 12months – 16months

    • 23months – 30months

    Correct Answer
    A. 7months – 10months
    Explanation
    The eruption of primary lateral incisors typically begins between 7 and 10 months of age. This is a normal developmental milestone in infants where the teeth start to emerge from the gums. The timing can vary slightly from child to child, but on average, the primary lateral incisors will start to appear during this time period.

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  • 47. 

    We can do fissure sealant on ?

    • The first molars of permanent teeth are healthy

    • The first molars of primary teeth healthy

    • The first molars of permanent teeth with deep cavities

    • The second molars of permanent teeth

    Correct Answer
    A. The first molars of permanent teeth are healthy
    Explanation
    Fissure sealants are a preventive dental treatment that involves applying a protective coating to the chewing surfaces of teeth to prevent cavities. The correct answer states that fissure sealants can be done on the first molars of permanent teeth that are healthy. This means that if the first molars of permanent teeth do not have any existing cavities or decay, they can still benefit from fissure sealants to protect them from future cavities.

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  • 48. 

    The most durable of dental material filling is:?

    • Amalgam

    • Composite

    • Glass ionomer

    • Resin modified glass ionomer

    • Intermediate restorative material (IRM)

    Correct Answer
    A. Amalgam
    Explanation
    Amalgam is the most durable dental material filling. It is a mixture of metals, including silver, tin, copper, and mercury. Amalgam fillings have been used for many years and have a long track record of durability and strength. They are resistant to wear and can withstand the forces of chewing and grinding. Additionally, amalgam fillings are less likely to fracture or break compared to other materials like composite or glass ionomer.

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  • 49. 

    The indication for serial extraction are?

    • Answer 1,2 and 3

    • Patient aged about 9 years old 1

    • Significant incisor crowding 2

    • All permanent teeth present

    Correct Answer
    A. Answer 1,2 and 3
    Explanation
    The indication for serial extraction includes a patient aged about 9 years old, significant incisor crowding, and all permanent teeth present. Serial extraction is a treatment approach in orthodontics where primary teeth are selectively removed to create space for the eruption of permanent teeth. This is typically done in cases where there is severe crowding and the patient is still growing. By removing certain primary teeth, the orthodontist can guide the eruption of permanent teeth into a more favorable position, resulting in improved alignment and occlusion.

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Quiz Review Timeline (Updated): Jan 17, 2025 +

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  • Current Version
  • Jan 17, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 05, 2019
    Quiz Created by
    Uhsdental

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