ABPD ORAL BOARDS QUESTIONS & ANSWERS
What is the probability that natal teeth are actually normal primary teeth? - Answer -
Over 90%! Less than 10% are supernumaries.
Where do natal teeth most often occur in the mouth? - Answer -Most in mandibular
anterior region. Over 50% occur in pairs.
What is the risk of topical anesthetics in infants? - Answer -Methemoglobinemia
What is the possible etiology of natal teeth? - Answer -Superficial position of tooth bud,
endocrine disorder, infection, Cleft lip and palate, Hallerman-Streiff syndrome
List 4 risk factors that increase caries risk. - Answer -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? - Answer -White spot lesions,
enamel defects, visible cavities, existing restorations, significant plaque accumulation.
What are contraindications to SDF? - Answer -Symptomatic teeth, necrotic teeth, silver
allergy, desquamative gingivitis or mucositis
What's the MOA of SDF? - Answer -Silver ions are bactericidal and inhibit biofilm
formation, fluoride promotes remineralization
What should be asked in med hx of pt with cardiac disease? - Answer -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? - Answer -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 - Answer -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 - Answer -1. Biological factors
2. Protective factors
3. Clinical findings
How long does the setting reaction for a Glass Ionomer Cement Restoration occur
over? - Answer -24 hours
Should the cavosurface margin of a class II prep in a primary molar be beveled? If so by
how much? - Answer -No bevel
What is the AAPD rec for radiographs in the transitional dentition? - Answer -posterior
bitewings and a pano OR select PAs
What are the indications for a rein restoration? - Answer -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 - Answer -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? - Answer -15 to 20 seconds
Should a class II resin be light cured again after polishing? - Answer -Yes
What are the properties of RMGI restorations? - Answer -1. Chemically bond to enamel
and dentin
2. Release fluoride
3. Good esthetics
4. Less moisture-sensitive than resin
What are the indications for a Class V RMGI? - Answer -1. Difficulty with isolation
2. Poor behavior
3. Moderate caries risk (due to FL release)
What are the indications for Interim therapeutic retorations? - Answer -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? - Answer -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? - Answer -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? - Answer -
High caries risk
What radiographs should be taken in primary dentition with closed posterior contacts? -
Answer -Should be individualized per patient- but likely select PAs and posterior
bitewings
What does tell-show-do mean? - Answer -explain, demonstrate, then complete the step
What is the concentration of fluoride ion in 5% NaF varnish? - Answer -2.26% fluoride
ion (22,500 ppm = 22.5mg/mL = 2.26%)
Is local anesthesia always needed for Class V restorations? - Answer -Not always for
smaller restorations but YES if using rubber dam for soft tissue comfort)
What should you ask if a patient has a history of a heart murmur? - Answer -1. What is
the current heart murmur status?
2. Any follow ups?
3. Did they ever see a cardiologist?
4. Any need for echo or chest films?
5. Symptoms?
6. Medications?
7. SBE ever needed in the past?
8. Any activity restrictions?
What radiographs are indicated for a patient with a traumatized permanent incisor? -
Answer -Take 2 PAs of traumatize area with different angles to minimize diagnostic
errors.
When is the final restoration recommended for an uncomplicated crown fracture? -
Answer -6-8 weeks
What treatment is indicated for a middle third root fracture after trauma to a central
incisor? - Answer -Splint for 6-8 weeks OR until mobility is reduced
, What are the indication for crowns instead of composite in anterior teeth in children? -
Answer -1. Severity of caries
2. Extension of caries
3. High caries risk
4. pulp-treated teeth
5. poor patient compliance
6. developmental defects
7. restore and protect teeth with extensive surface loss (abrasion or erosion)
8. extensive caries treated under GA
List the different types of crowns for children. - Answer -Strip, SSC, open-faced SSCs,
pre-veneered SSCs, polycarbonate, Zirconia
Why is a hole placed in the incisal edge of a strip crown prior to placement? - Answer -
To vent the resin and prevent air voids
What are the indications for full coverage restorations on anterior teeth? - Answer -1.
Multisurface lesions (due to caries or trauma)
2. Involvement of incisal edge
3. Extensive cervical decal
4. Pulp therapy
5. Minor caries but very poor OH
6. Poor isolation
What type of cement is BioCem and what are its properties? - Answer -Bio-active
cement that can be used for Zircs. It forms hydroxyapatite to integrate into tooth
structure and releases phosphate, calcium, and fluoride ions. It is a dual-cured RMGI
cement.
List 3 differences between Zircs and SSCs - Answer -1. Passive fit
2. Inability to crimp
3. Natural color
What can interfere with Zirc cementation? - Answer -poor hemorrhage control- this is
why try-in crowns help
What cements can be used for zircs? - Answer -RMGI, GI cement, BioCem
Does IPT reduce the longevity of a restoration? - Answer -No
When is IPT contraindicated for primary molars? - Answer -If there is history of
spontaneous pain or clinical or radiographic pathology
What is the most common factor that limits long term prognosis of traumatized teeth
with pulp exposure? - Answer -If there is a concomitant luxation injury this can
What is the probability that natal teeth are actually normal primary teeth? - Answer -
Over 90%! Less than 10% are supernumaries.
Where do natal teeth most often occur in the mouth? - Answer -Most in mandibular
anterior region. Over 50% occur in pairs.
What is the risk of topical anesthetics in infants? - Answer -Methemoglobinemia
What is the possible etiology of natal teeth? - Answer -Superficial position of tooth bud,
endocrine disorder, infection, Cleft lip and palate, Hallerman-Streiff syndrome
List 4 risk factors that increase caries risk. - Answer -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? - Answer -White spot lesions,
enamel defects, visible cavities, existing restorations, significant plaque accumulation.
What are contraindications to SDF? - Answer -Symptomatic teeth, necrotic teeth, silver
allergy, desquamative gingivitis or mucositis
What's the MOA of SDF? - Answer -Silver ions are bactericidal and inhibit biofilm
formation, fluoride promotes remineralization
What should be asked in med hx of pt with cardiac disease? - Answer -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? - Answer -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 - Answer -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 - Answer -1. Biological factors
2. Protective factors
3. Clinical findings
How long does the setting reaction for a Glass Ionomer Cement Restoration occur
over? - Answer -24 hours
Should the cavosurface margin of a class II prep in a primary molar be beveled? If so by
how much? - Answer -No bevel
What is the AAPD rec for radiographs in the transitional dentition? - Answer -posterior
bitewings and a pano OR select PAs
What are the indications for a rein restoration? - Answer -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 - Answer -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? - Answer -15 to 20 seconds
Should a class II resin be light cured again after polishing? - Answer -Yes
What are the properties of RMGI restorations? - Answer -1. Chemically bond to enamel
and dentin
2. Release fluoride
3. Good esthetics
4. Less moisture-sensitive than resin
What are the indications for a Class V RMGI? - Answer -1. Difficulty with isolation
2. Poor behavior
3. Moderate caries risk (due to FL release)
What are the indications for Interim therapeutic retorations? - Answer -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? - Answer -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? - Answer -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? - Answer -
High caries risk
What radiographs should be taken in primary dentition with closed posterior contacts? -
Answer -Should be individualized per patient- but likely select PAs and posterior
bitewings
What does tell-show-do mean? - Answer -explain, demonstrate, then complete the step
What is the concentration of fluoride ion in 5% NaF varnish? - Answer -2.26% fluoride
ion (22,500 ppm = 22.5mg/mL = 2.26%)
Is local anesthesia always needed for Class V restorations? - Answer -Not always for
smaller restorations but YES if using rubber dam for soft tissue comfort)
What should you ask if a patient has a history of a heart murmur? - Answer -1. What is
the current heart murmur status?
2. Any follow ups?
3. Did they ever see a cardiologist?
4. Any need for echo or chest films?
5. Symptoms?
6. Medications?
7. SBE ever needed in the past?
8. Any activity restrictions?
What radiographs are indicated for a patient with a traumatized permanent incisor? -
Answer -Take 2 PAs of traumatize area with different angles to minimize diagnostic
errors.
When is the final restoration recommended for an uncomplicated crown fracture? -
Answer -6-8 weeks
What treatment is indicated for a middle third root fracture after trauma to a central
incisor? - Answer -Splint for 6-8 weeks OR until mobility is reduced
, What are the indication for crowns instead of composite in anterior teeth in children? -
Answer -1. Severity of caries
2. Extension of caries
3. High caries risk
4. pulp-treated teeth
5. poor patient compliance
6. developmental defects
7. restore and protect teeth with extensive surface loss (abrasion or erosion)
8. extensive caries treated under GA
List the different types of crowns for children. - Answer -Strip, SSC, open-faced SSCs,
pre-veneered SSCs, polycarbonate, Zirconia
Why is a hole placed in the incisal edge of a strip crown prior to placement? - Answer -
To vent the resin and prevent air voids
What are the indications for full coverage restorations on anterior teeth? - Answer -1.
Multisurface lesions (due to caries or trauma)
2. Involvement of incisal edge
3. Extensive cervical decal
4. Pulp therapy
5. Minor caries but very poor OH
6. Poor isolation
What type of cement is BioCem and what are its properties? - Answer -Bio-active
cement that can be used for Zircs. It forms hydroxyapatite to integrate into tooth
structure and releases phosphate, calcium, and fluoride ions. It is a dual-cured RMGI
cement.
List 3 differences between Zircs and SSCs - Answer -1. Passive fit
2. Inability to crimp
3. Natural color
What can interfere with Zirc cementation? - Answer -poor hemorrhage control- this is
why try-in crowns help
What cements can be used for zircs? - Answer -RMGI, GI cement, BioCem
Does IPT reduce the longevity of a restoration? - Answer -No
When is IPT contraindicated for primary molars? - Answer -If there is history of
spontaneous pain or clinical or radiographic pathology
What is the most common factor that limits long term prognosis of traumatized teeth
with pulp exposure? - Answer -If there is a concomitant luxation injury this can
