Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Tooth gemination
Introduction
Overview
Gemination is when, during development, a tooth splits to form what appears to be two teeth.
Gemination is easily confused with fusion, which is the result of two teeth which fuse either partially or entirely during development to form what appears to be a single tooth. The way to tell fusion from gemination is to count the teeth. If the number of teeth correspond to the normal quantity, it is a case of fusion. If the number is in excess of normal, it is a case of gemination.
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]