Fusion
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
FUSION
- Fusion is often referred to as Synodontia
- In Fusion, two developing tooth buds fuse together resulting in a double tooth
- The resulting tooth results in a double tooth like tooth
- When Fusion occurs, it results in an overall reduction in the number of teeth by one
- More frequent in primary dentition
CLINICAL AND RADIOGRAPHIC FEATURES
- The tooth that has undergone fusion is often large resembling a macrodont and may have a malformed appearance due to two teeth with varied morphology being fused
- Fusion is more common in anterior teeth and may be partial or complete
DIFFERENTIAL DIAGNOSIS
- Fusion needs to be differentiated from Gemination
- In fusion the overall number of teeth is reduced by one if the double tooth is counted as a single tooth
- In gemination the overall number of teeth remains the same if the double tooth is counted as a single tooth
- The teeth that fuse are often close to each other in odontogenesis
Fusion
Example 4