Gemination
Author :
Trishul Allareddy B.D.S, M.S.
Diplomate of ABOMR Clinical Professor and Director of Oral and Maxillofacial Radiology
veeratrishul-allareddy@uiowa.edu
Published on : 12 Sep 2018
BUCCAL BIFURCATION CYST
- Gemination is often referred to as twinning
- In Gemination, a developing tooth tries to divide into two teeth albeit unsuccessfully
- The resulting tooth has a double tooth like appearance
- Gemination may be in the crown or extend all the way into the length of the root
- TWhen gemination is successful, it results in a supernumerary tooth in addition to the normal complement of the tooth
- Gemination is more frequent in primary dentition
CLINICAL AND RADIOGRAPHIC FEATURES
- The tooth that has undergone gemination is often large resembling a macrodont
- The tooth has an invagination in the crown and may involve the root as well
DIFFERENTIAL DIAGNOSIS
- Gemination needs to be differentiated from fusion
- In gemination the overall number of teeth remains the same if the double tooth is counted as a single tooth
- In fusion the overall number of teeth is reduced by one if the double tooth is counted as a single tooth
Gemination
Example 1
Gemination
Example 2
Gemination
Example 3
Gemination
Example 4