ABPD ORAL BOARDS. EXAM
QUESTIONS WITH VERIFIED
ANSWERS. A+ GRADE 2025/2026.
What is the probability that natal teeth are actually normal primary teeth? - ANS Over 90%!
Less than 10% are supernumaries.
Where do natal teeth most often occur in the mouth? - ANS Most in mandibular anterior
region. Over 50% occur in pairs.
What is the risk of topical anesthetics in infants? - ANS Methemoglobinemia
What is the possible etiology of natal teeth? - ANS Superficial position of tooth bud,
endocrine disorder, infection, Cleft lip and palate, Hallerman-Streiff syndrome
List 4 risk factors that increase caries risk. - ANS 1. Primary caregiver has active caries
2. Low SES or recent immigrant
3. Over 3 snacks of high carbs or drinks
4. SHCN
What are CLINICAL risk factors that increase caries risk? - ANS White spot lesions, enamel
defects, visible cavities, existing restorations, significant plaque accumulation.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,What are contraindications to SDF? - ANS Symptomatic teeth, necrotic teeth, silver allergy,
desquamative gingivitis or mucositis
What's the MOA of SDF? - ANS Silver ions are bactericidal and inhibit biofilm formation,
fluoride promotes remineralization
What should be asked in med hx of pt with cardiac disease? - ANS 1. Description and name
of condition
2. Previous treatment
3. Cardiologist to send consult to
4. Medications and frequency
5. Limitations and morbidity
What cardiac conditions require antibiotic prophylaxis? - ANS 1. Prosthetic valves
2 Cyanotic heart disease
3. Surgical stents and conduits
4. Valve dysfunction
5. Cardiomyopathy
6. Mitral valve prolapse with regurgitation
Oral findings in Down Syndrome - ANS 1. Mouth breathers
2. Relative mandibular prognathism with small maxilla
3. Small conical teeth
4. Retained primary teeth
5. Large, protruding tongues
6. Precocious periodontal disease
3 categories of info for caries risk assessment per AAPD - ANS 1. Biological factors
2. Protective factors
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,3. Clinical findings
How long does the setting reaction for a Glass Ionomer Cement Restoration occur over? -
ANS 24 hours
Should the cavosurface margin of a class II prep in a primary molar be beveled? If so by how
much? - ANS No bevel
What is the AAPD rec for radiographs in the transitional dentition? - ANS posterior bitewings
and a pano OR select PAs
What are the indications for a rein restoration? - ANS 1. Small pit and fissure caries
2. Interproximal caries in primary teeth not extending past line angle
3. Interproximal caries in permanent teeth that extend 1/3 to 1/2 the buccolingual width of
tooth
4. Strip crowns
Contraindications to resin restorations - ANS 1. Poor isolation
2. Large Multisurface restorations in posterior permanent dentition
3. High risk patients with multiple caries lesions, demin, and poor oral hygiene and poor
maintenance of restortions
How should you etch primary teeth? - ANS 15 to 20 seconds
Should a class II resin be light cured again after polishing? - ANS Yes
What are the properties of RMGI restorations? - ANS 1. Chemically bond to enamel and
dentin
2. Release fluoride
3. Good esthetics
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, 4. Less moisture-sensitive than resin
What are the indications for a Class V RMGI? - ANS 1. Difficulty with isolation
2. Poor behavior
3. Moderate caries risk (due to FL release)
What are the indications for Interim therapeutic retorations? - ANS 1. Uncooperative
patients
2. Patients with special needs
3. Interim for caries control when other materials can't be used
How should a RMGI restoration be finished? - ANS Place an unfilled resin adhesive over final
restorations, final finishing with handpiece may not always be indicated if steps followed
properly (but can do finishing bur slowly over surface)
What should you consider in ortho eval of primary dentition? - ANS 1. Anomalies of tooth
number and size
2. Any crossbites
3. Presence of oral habits along with dental and skeletal consequences
What caries risk is a patient that has visible radiographic enamel caries? - ANS High caries
risk
What radiographs should be taken in primary dentition with closed posterior contacts? -
ANS Should be individualized per patient- but likely select PAs and posterior bitewings
What does tell-show-do mean? - ANS explain, demonstrate, then complete the step
What is the concentration of fluoride ion in 5% NaF varnish? - ANS 2.26% fluoride ion (22,500
ppm = 22.5mg/mL = 2.26%)
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
QUESTIONS WITH VERIFIED
ANSWERS. A+ GRADE 2025/2026.
What is the probability that natal teeth are actually normal primary teeth? - ANS Over 90%!
Less than 10% are supernumaries.
Where do natal teeth most often occur in the mouth? - ANS Most in mandibular anterior
region. Over 50% occur in pairs.
What is the risk of topical anesthetics in infants? - ANS Methemoglobinemia
What is the possible etiology of natal teeth? - ANS Superficial position of tooth bud,
endocrine disorder, infection, Cleft lip and palate, Hallerman-Streiff syndrome
List 4 risk factors that increase caries risk. - ANS 1. Primary caregiver has active caries
2. Low SES or recent immigrant
3. Over 3 snacks of high carbs or drinks
4. SHCN
What are CLINICAL risk factors that increase caries risk? - ANS White spot lesions, enamel
defects, visible cavities, existing restorations, significant plaque accumulation.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,What are contraindications to SDF? - ANS Symptomatic teeth, necrotic teeth, silver allergy,
desquamative gingivitis or mucositis
What's the MOA of SDF? - ANS Silver ions are bactericidal and inhibit biofilm formation,
fluoride promotes remineralization
What should be asked in med hx of pt with cardiac disease? - ANS 1. Description and name
of condition
2. Previous treatment
3. Cardiologist to send consult to
4. Medications and frequency
5. Limitations and morbidity
What cardiac conditions require antibiotic prophylaxis? - ANS 1. Prosthetic valves
2 Cyanotic heart disease
3. Surgical stents and conduits
4. Valve dysfunction
5. Cardiomyopathy
6. Mitral valve prolapse with regurgitation
Oral findings in Down Syndrome - ANS 1. Mouth breathers
2. Relative mandibular prognathism with small maxilla
3. Small conical teeth
4. Retained primary teeth
5. Large, protruding tongues
6. Precocious periodontal disease
3 categories of info for caries risk assessment per AAPD - ANS 1. Biological factors
2. Protective factors
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,3. Clinical findings
How long does the setting reaction for a Glass Ionomer Cement Restoration occur over? -
ANS 24 hours
Should the cavosurface margin of a class II prep in a primary molar be beveled? If so by how
much? - ANS No bevel
What is the AAPD rec for radiographs in the transitional dentition? - ANS posterior bitewings
and a pano OR select PAs
What are the indications for a rein restoration? - ANS 1. Small pit and fissure caries
2. Interproximal caries in primary teeth not extending past line angle
3. Interproximal caries in permanent teeth that extend 1/3 to 1/2 the buccolingual width of
tooth
4. Strip crowns
Contraindications to resin restorations - ANS 1. Poor isolation
2. Large Multisurface restorations in posterior permanent dentition
3. High risk patients with multiple caries lesions, demin, and poor oral hygiene and poor
maintenance of restortions
How should you etch primary teeth? - ANS 15 to 20 seconds
Should a class II resin be light cured again after polishing? - ANS Yes
What are the properties of RMGI restorations? - ANS 1. Chemically bond to enamel and
dentin
2. Release fluoride
3. Good esthetics
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, 4. Less moisture-sensitive than resin
What are the indications for a Class V RMGI? - ANS 1. Difficulty with isolation
2. Poor behavior
3. Moderate caries risk (due to FL release)
What are the indications for Interim therapeutic retorations? - ANS 1. Uncooperative
patients
2. Patients with special needs
3. Interim for caries control when other materials can't be used
How should a RMGI restoration be finished? - ANS Place an unfilled resin adhesive over final
restorations, final finishing with handpiece may not always be indicated if steps followed
properly (but can do finishing bur slowly over surface)
What should you consider in ortho eval of primary dentition? - ANS 1. Anomalies of tooth
number and size
2. Any crossbites
3. Presence of oral habits along with dental and skeletal consequences
What caries risk is a patient that has visible radiographic enamel caries? - ANS High caries
risk
What radiographs should be taken in primary dentition with closed posterior contacts? -
ANS Should be individualized per patient- but likely select PAs and posterior bitewings
What does tell-show-do mean? - ANS explain, demonstrate, then complete the step
What is the concentration of fluoride ion in 5% NaF varnish? - ANS 2.26% fluoride ion (22,500
ppm = 22.5mg/mL = 2.26%)
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
