lab 3 developmental defect teeth dina

Environmental alteration of teeth

ORAL AND MAXILLOFACIAL PATHOLOGY

Amelogenesis imperfecta of the hypoplastic type.

Tooth surface shows pitting (a) or irregularities (b)

indicating abnormal enamel formation. The hardness of the enamel is normal

Amelogenesis imperfecta of the hypomineralized type.

Turner tooth, a hypoplastic tooth resulting from periapical infection, usually of the deciduous predecessor

Amelogenesis imperfecta X-linked hypoplastic type in a male showing a thin translucent layer of defective enamel on the dentine surface.

shell tooth. In this severe form of dentinogenesis imperfecta

Syphilitic hypoplasia. Congenital syphilis results in a pattern

of enamel hypoplasia that is well

known but currently so rare .

• Anterior teeth altered by syphilis

are termed Hutchinson's incisors

and exhibit crowns that are shaped

like straight-edge screw drivers.

• Altered posterior teeth are termed

mulberry molars .

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