ABPD REVIEW Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
Weeks at time of initiation? 6-8
Defect of initiation Supernumary teeth Missing
(agenesis) of teeth
- ->
% of supernumaries that erupt 25%
Prevalence of supernumary 0.1-3.8% LOWER in primary teeth 5x
teeth more common in permanent teeth
__% of supernumaries are in 90%
the maxilla
Most common supernumary? Mesiodens
Two kinds of supernumary Rudimentary Supplemental
teeth?
Syndromes associated with Hallerman-Streiff Apert's
supernumary teeth? Oro-facial-digital syndrome
Cleidocranial Dysplasia Gardern's
Cleft palate Sturge Weber Down
syndrome Crouzons
, Incidence of congenital 1.5-10% in Permanenet (<1%
agenesis? Primary) (more common than
supernum)
Most common congenitally 3rd Molars Mandibular 2nd
missing tooth premolars Maxillary Laterals
Maxillary 2nd Premolars
Syndromes associated with Cleft palate Ectodermal dysplasia
tooth agenesis Downs Ellis van Crevald
(Chondroectodermal dysplasia)
Oro-Facial-Digital Hallerman-Streiff
Crouzons
Clinical symptoms of Missing/asymmetry with digits Think
Oro-Facial- Digital frenal attachments Anomalous
anterior teeth Hypoplasia of alar
cartilage
Syndromes that manifest as Hallerman Streiff Oro facial digital
Hypo and Hyperdontia Crouzons Down
Lit: Agenesis of mandibular Laterals
centrals is also associated with
_____ agenesis in males
Lit: Hyper or hypodontia is Hypodontia
associated with delayed dental
development?
Proliferation defects (Cap stage) Defects in size-Fusion
- Gemination-Macrodontia
Answers with Verified Solutions | Latest
Updated 2026
Weeks at time of initiation? 6-8
Defect of initiation Supernumary teeth Missing
(agenesis) of teeth
- ->
% of supernumaries that erupt 25%
Prevalence of supernumary 0.1-3.8% LOWER in primary teeth 5x
teeth more common in permanent teeth
__% of supernumaries are in 90%
the maxilla
Most common supernumary? Mesiodens
Two kinds of supernumary Rudimentary Supplemental
teeth?
Syndromes associated with Hallerman-Streiff Apert's
supernumary teeth? Oro-facial-digital syndrome
Cleidocranial Dysplasia Gardern's
Cleft palate Sturge Weber Down
syndrome Crouzons
, Incidence of congenital 1.5-10% in Permanenet (<1%
agenesis? Primary) (more common than
supernum)
Most common congenitally 3rd Molars Mandibular 2nd
missing tooth premolars Maxillary Laterals
Maxillary 2nd Premolars
Syndromes associated with Cleft palate Ectodermal dysplasia
tooth agenesis Downs Ellis van Crevald
(Chondroectodermal dysplasia)
Oro-Facial-Digital Hallerman-Streiff
Crouzons
Clinical symptoms of Missing/asymmetry with digits Think
Oro-Facial- Digital frenal attachments Anomalous
anterior teeth Hypoplasia of alar
cartilage
Syndromes that manifest as Hallerman Streiff Oro facial digital
Hypo and Hyperdontia Crouzons Down
Lit: Agenesis of mandibular Laterals
centrals is also associated with
_____ agenesis in males
Lit: Hyper or hypodontia is Hypodontia
associated with delayed dental
development?
Proliferation defects (Cap stage) Defects in size-Fusion
- Gemination-Macrodontia