文档介绍：Developmental Abnormalities of Teeth
Zhang Qi
Wuhan University School of Stomatology
Classification
Anomalies of Number
Anomalies of Size
Anomalies of Shape
Anomalies of Structure
Anomalies of Color
Anomalies of Number
Anodontia: plete absence of
one or both dentition.
2. Hypodontia (partial anodontia):
a deficiency in tooth number.
Hyperdontia (Supernumerary Teeth):
an excess in tooth number.
a. Mesiodens b. Distomolar
Mesiodens
Anomalies of Size
Microdontia
Macrodontia
Anomalies of Shape
Gemination
Fusion
Concrescence
Dilaceration
Enamel Pearl (enameloma)
Talon Cusp
Taurodontism
Dens in Dente (dens invaginatus)
Dens Evaginatus
Supernumerary Roots
Gemination
The partial development of two teeth
from a single tooth bud following
plete division.
An plete division of a single
tooth bud resulting in a bifid crown
with a single pulp chamber.
Gemination
The dentinal union of two embryologically
developing teeth.
Fused teeth can contain two separate
pulp chamber, may appear as large bifid
crowns with one chamber.
Fusion
Fusion