5 Questions
Which stage involves the initiation of the dental lamina?
Histodifferentiation
Which anomaly is characterized by the absence of cusp or root?
Macrodontia
Which condition involves the deposition of enamel and dentin matrices?
Hypercementosis
Which stage of tooth development involves the morphological formation of bud, cap, and early bell structures?
Proliferation
What is the nature of the anomaly associated with microdontia?
Deficient development
Study Notes
Tooth Development Stages
- Histophysiologic stage: involves deficient or excessive development
- Morphologic stage: counterparts of histophysiologic stage
Dental Anomalies
- Hyperdontia: excessive development, characterized by an increased number of teeth
- Hypodontia: deficient development, characterized by a decreased number of teeth
- Oligodontia: a type of hypodontia where there are only a few teeth present
- Odonto-ontia: a rare condition where there is a mass of dental tissue
Tooth Structure
- Enamel and dentin structure: affected in amelogenesis imperfecta type I (hypoplastic) and IV (hypoplastic/pumice-like)
- Amelogenesis imperfecta type II (hypomaturation) affects enamel maturation
- Amelogenesis imperfecta type IV affects enamel and dentin maturation
Tooth Size and Shape
- Microdontia: abnormally small teeth
- Macrodontia: abnormally large teeth
- Peg lateral: a type of microdontia where the tooth is small and peg-shaped
- Mulberry molars: a type of anomaly where the tooth has multiple small cusps
- Carabelli's cusp: a small extra cusp on the lingual surface of a tooth
- Taurodontism: a type of anomaly where the tooth has a large pulp chamber and short roots
Tooth Number and Structure
- Dens in dente: a type of anomaly where there is a small tooth-like structure inside a normal tooth
- Dens evaginatus: a type of anomaly where there is an extra cusp or tubercle on the tooth
- Gemination: a type of anomaly where two teeth are joined together
- Fusion: a type of anomaly where two teeth are joined together
- Concrescence: a type of anomaly where two teeth are joined together by cementum
Tooth Eruption
- Delayed eruption: delay in the eruption of teeth
- Natal/neonatal teeth: teeth that are present at birth
- Accelerated eruption: rapid eruption of teeth
Test your knowledge on dental development stages and anomalies including histophysiologic stage, morphologic stage, and nature of anomalies like hyperdontia and hypodontia.
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