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Rh hump is seen in:

# Rh hump is seen in which portion of a tooth?
A. Cementum
B. Enamel
C. Dentin
D. Alveolar bone


The correct answer is B. Enamel.

In Erythroblastosis fetalis, there is deposition of bilirubin pigment in the enamel and dentin of developing teeth giving them a green, brown or blue hue.

In some cases, enamel hypoplasia involving the incisal edges of anterior teeth and middle third of deciduous cuspid and first molar may be seen resulting in a characteristic ring like defect known as 'Rh hump'.

No treatment for tooth pigmentation is necessary since it affects the deciduous teeth and presents only a temporary cosmetic problem.

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