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Pediatric Dentistry Exam I Questions and Answers

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Pediatric Dentistry Exam I Questions and Answers What is the most important function of the primary dentition? - Space maintenance for the permanent teeth T/F The primary 2nd molar is replaced by the permanent 2nd molar. The primary dentition has 12 less teeth than the permanent dentition...

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  • September 15, 2024
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Pediatric Dentistry Exam I Questions
and Answers
What is the most important function of the primary dentition? - answer - *Space
maintenance* for the permanent teeth

T/F
The primary 2nd molar is replaced by the permanent 2nd molar. The primary dentition
has 12 less teeth than the permanent dentition with five teeth per quadrant. - answer
- False: it is replaced by the permanent 2nd premolar
- True

What are the 5 functions of the primary dentition? - answer - Space maintenance
- Mastication
- Growth of jaws: stimulated through mastication and forces imposed on the PDL allows
for continuous bone turnover
- Speech: however, they are not required for speech, only *aid* in speech
- Esthetic function: more of an issue for parents than patients

Growth of the jaws is stimulated through which 2 processes? - answer mastication
and developing height of dental arches

How do primary teeth compare to permanent teeth in size? Which 2 buzzwords
compare the size of primary teeth to their perm. counterparts? - answer - Primary
teeth are smaller in all dimensions when compared to their permanent counterparts
- Think in terms of "shallower and narrower"

What 2 words describe primary incisors? - answer Short and wide

How do primary molars compare to permanent molars in shape (crown and roots) 8? -
answer - Bulbous and squatty
- *Narrower occlusal table*
- Bulge at gingival margin
- Cervical constriction
- Broad, flat contact areas which extend nearly to the gingival crest
- Longer, thinner roots in proportion to crown size with "ribbon shaped" canals
- Roots flared M-D and curved to accommodate the tooth bud
- Enamel and dentin are thinner relatively to larger pulp

Which primary tooth has the most pronounced bulge at the gingival margin? - answer
- Primary 1st mandibular molar on the MB

,How does the enamel of primary teeth compare to permanent teeth? - answer -
Enamel always thinner in primary teeth with a uniform thickness of 0.75 - 1.0 mm
- Primary teeth are also whiter

How do enamel rods of primary teeth compare to permanent teeth? - answer -
primary enamel rods at the gingival 1/3 do not slant gingivally but rather incline
occlusally

How does the dentin of primary teeth compare to permanent teeth? - answer -
Dentin is thinner in proportion to tooth size

How do the pulp chambers of primary molars compare to permanent molars (2)? How
do they change with age? - answer - Proportionately larger primary pulp chambers
- Primary pulp horns extend further into the crown and follow the outline of the crown
- Becomes smaller with age

Which pulp horn of the primary dentition is especially prominent? - answer - MB pulp
horn of the primary mandibular 1st molar

Which primary molar resembles no permanent tooth? Describe its shape (3). - answer
- Primary mandibular 1st molar
- Has prominent MB cervical crown dip
- large cervical bulge
- longer MD than BL

The primary mandibular second molar resembles what permanent tooth? Describe it. -
answer - Permanent mandibular first molar
- Has 5 cusps with a mesial root that can be bifurcated
- MB cusp is largest

The primary maxillary first molar resembles what permanent tooth? Describe its shape.
- answer - The crown resembles a maxillary premolar with *3 roots*
- This tooth has a prominent buccal "reach-out" on the MB in the occlusal 1/3 of the
tooth to make contact; this tooth is triangular in shape from the occlusal

The primary maxillary second molar resembles what permanent tooth? Describe its
shape. - answer - Resembles the permanent maxillary first molar
- It is rhomboidal in shape from the occlusal with a prominent oblique ridge

When charting the presence/absence of permanent and primary teeth, how should you
indicate that a tooth is present? - answer - Circle the letter or the number of the tooth
on the chart but *DO NOT* circle the entire tooth

What is the purpose of the first dental visit for a new child? What should the tone be? -
answer - Purpose: to introduce yourself to the patient and their parent and vice

, versa, communicate well to begin building trust with the patient, and be a low-key and
easy appointment for everyone
- The tone should be easy going and run smoothly

How can good communication be established during the dental visit? - answer
Explain clearly what the visit will entail and what the parents and child can expect

What are the 5 areas covered under Data gathering? - answer - Chief complaint
- Medical hx
- Dental hx
- PT's social history
- Radiographs

What 7 components of the medical history do you need to know about your patient's
general health? - answer - Medical conditions/illnesses: asthma, ADD, ADHD, heart
problems
- Current medications including OTC & herbal
- Allergies: drugs, sedative agents, food, latex
- Hospitalizations: reason, date, & outcome
- Surgeries: reason, date, & outcome
- Immunization status: including tetanus
- Traumatic injuries: reason, date, outcome

When taking the medical history of adolescents, what 6 additional factors should be
looked at? - answer - Nutritional and dietary considerations
- Eating disorders
- Alcohol and Substance abuse
- OTC meds and supplements
- Body art
- Pregnancy

How often should the medical history be updated? - answer - Should be updated at
*every visit*

When reviewing the dental history of the patient, what 11 factors should be addressed?
- answer - Previous dental experiences?
- Family history of caries?
- Dental pain & infection?
- Diet and habits
- Behavior of child during previous treatment
- Date of last radiographs
- Oral hygiene practices
- Fluoride use
- Oral habits (thumbsucking)
- Trauma history
- Dental home (an established dental practice with routine recall)

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