Etiology

Hypoplastic Type=Autosomal dominant

Hypocalcified Type=Autosomal dominant
Autosomal recessive

Hypomaturation Type=Autosomal dominant
Autosomal recessive
X-linked recessive

Snow-Capped=Autosomal dominant
X-linked recessive

Predilection

Hypomaturation Type= Greater in males

Snowcapped=Greater in males

Location

All primary and permanent teeth

Clinical Appearance

Hypoplastic Type=Random pinpoint points on buccal and lingual surfaces

Hypocalcified Type=Very soft enamel, easily lost

Hypomaturation Type=Soft enamel that chips away

Snowcapped=White discoloration of surface enamel on occulsal 1/3

Radiographic Features

Hypoplastic Type=enamel appears thinner than normal

Hypocalcified Type=Enamel has a "moth-eaten" appearance

Hypomaturation Type=Enamel has same radiolucency as dentin

Snowcapped=None

Microscopic Features

Hypoplastic Type=Abnormal enamel matrix thinner than normal

Hypocalcified Type=Poorly calcified enamel of normal thickness

Hypomaturation Type=Large amount of enamel matrix

Snowcapped=NA

Treatment

Hypoplastic Type=Esthetic restorations

Hypocalcified Type=Crowns, Esthetic restoration

Hypomaturation Type=Crowns, Esthetic restoration

Snowcapped=Esthetic restorations

Diagnostic Process

Clinical

Family History

Photos Gallery

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