The Journal
The affected tooth showed the fusion of crown from the middle one third area and roots . However , it had two different pulp chambers and root canals . Pulpectomy was done followed by obturation with metapex ( figure-3,4 & 5 ).
Fig 5 : Clinical pictures after pulpectomy Discussion
Fig 3 : Clinical pictures after pulpectomy
Fig 4 : Intaroral periapical radiograph showing obturation with metapex
Fusion can be defined union of two normally separated tooth germs . It can either be complete or incomplete , depending upon the stage of development of teeth at the time of union [ 1 ]. The etiology is still unknown but according to the most accepted theory it results from contact between developing teeth due to some physical force or pressure [ 1 ]. This developmental anomaly is thought to originate from morpho differentiation stage of tooth development [ 8 ]. Fusion should be differentiated from gemination which represents an attempted division of a single tooth germ by invagination , with resultant incomplete formation of two teeth [ 1 ]. Clinical problems associated with the presence of fusion are unaesthetic appearance , malocclusion , and susceptibility to caries [ 10 ]. Furthermore Ahmet et al . [ 2 ] reported delay in resorption of root due to increased root surface area relative to the size of permanent successor crown . Fusion of primary teeth may also be associated with developmental disturbances such as microdontia and delayed tooth formation . Management of fused teeth in child patient depends on a lot of factors like combinations of fused primary teeth , level of fusion and cooperation of child patient . If the clinician plans extraction of fused primary teeth ,
10 30 Vol . 12 No . 23 May-August Sept-Dec 2016