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TREATMENT OF FUSED PERMANENT MANDIBULAR LATERAL AND CENTRAL INCISORS : REPORTS OF CASES

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Abstract

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Developmental dental morphological anomalies are fusion, gemination, twinning,
concrescence and etc. They may cause many problems in conservative, periodontal and
esthetic aspects. Fusion is a condition where two separate tooth buds unite at some
stage .in their development to form a bifid crown. If tooth contact occurs early, at least
before the start of calcification, the two teeth may be completely unites to form a single
large tooth. If tooth contact occurs after the time when a portion of the tooth crown has
completed its formation, there may be union of the roots only. In fusion the dentin is
always confluent.
Fusion teeth is more common in the deciduous than in the permanent dentition. Fused
teeth are relatively rare, and are mostly mandibular anterior teeth. Fusion of normal and
supernumerary teeth or between normal teeth may occurs.
The exact etiology factor of fusion is unknown, but genetic and environmental factors
seems to be related. A variety of complications and subsequent treatments have been
suggested on this teeth. Periodontal conditions may arise due to a groove formed at the
line of fusion of the two teeth. Crowding or Protrusion with potential for malocclusion
or delayed eruption of adjacent teeth. Fusion teeth appear in the anterior region, they
usually cause esthetic problems. Treatments vary depending on the problem, the location,
and the extent of fusion. Treatment of fused teeth has been reported from endodontic,
orthodontic, periodontic, surgical and multidisciplinary.
This report presents the esthetic improvements by separation of two clinical crowns.
Bone reduction or endodontic treatments are not required.

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