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Anomaly
Something that is noticeably different or that deviates from the ordinary or normal
Intrinsic Factors
Causes that originate from inside the body
Extrinsic Factors
Causes that originate from outside the body
Congenital
If an anomaly occurs at or before birth
Developmental anomaly
If an anomaly occurs during the formation and development of a dental structure
Macrodontia
teeth large than normal
Microdontia
Teeth are small than normal
Hyperdontia
Multiple or extra teeth referred to as supernumeraries
Mesiodens
Supernumerary teeth located in the midline
Disomolars
If the supernumerary teeth erupt as 4th molars
Paramolars
If supernumerary teeth erupt lingual or buccal to a molar
What are the chances that the supernumerary tooth is maxillary?
9:1
Anodontia
Singular or multiple missing teeth
What does it mean if the primary teeth are congenitally missing?
That their permanent replacements will also be absent
What are them most commonly missing teeth?
Maxillary third molars than the mandibular third molars.
What are the second most commonly missing teeth?
permanent maxillary lateral incisors
What are the third most commonly missing teeth?
Mandibular second premolars
Partial Anodontia
Note 
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