1. Qing Jiang Huang Den1114/D218 October 2013
Gemination
Qing Jiang Huang
Den1114/D218
October 2013

2. Introduction
Gemination is a dental phenomenon that appears to be two teeth developed from one tooth bud.
Geminated tooth (also called double tooth or twinning ) is counted as one tooth. There are a normal number of teeth in the mouth.

3. How common is geminated tooth?
It has been reported to occur in the baby teeth in anywhere from 0.5% to 2.5% of Caucasian children. It is more common in Asian children, which accounts for 5% or more.
It occurs most commonly in the upper front teeth. However, it can also occur on the lower teeth as well.

4. Possible causes (etiology)
Hereditary factors
Crowding of tooth germs
Trauma
Systemic disease
Environmental factors

5. Consequence/Effect Crowding Atypical spacing between the teeth
Delay the eruption of the permanent teeth underneath

6. Role of Dental Team
X-ray: to monitor the permanent teeth underneath it to ensure that they come in normal.
Sealant: place in deep groove between the “two” teeth to help prevent cavity.