Journal of Conservative Dentistry
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Year : 2017  |  Volume : 20  |  Issue : 1  |  Page : 58-61

Root canal treatment of a fused mandibular incisor using cone-beam computed tomography as a diagnostic aid

1 Dental School, University of Cuiabá, Cuiabá; Dental School, University of North Paraná, Londrina, Brazil
2 Dental School, University of North Paraná, Londrina, Brazil
3 Dental School, University of Cuiabá, Cuiabá, Brazil

Correspondence Address:
Alvaro Henrique Borges
University of Cuiaba, Av. Manoel Jose de Arruda n. 3.100, CEP: 78065-900, Cuiabá, MT
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-0707.209078

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Tooth fusion consists of the union of crowns by the enamel and/or dentin. We describe a case of a patient who presented with a fistula in the apical portion of teeth 32 and 33. Clinically, tooth 32 showed increased crown width in relation to other teeth in the same arch. Radiographic examination evidenced fusion of tooth 32 with a possible supernumerary tooth. Cone-beam computed tomography was used to confirm the radiographic findings and revealed incomplete apex formation of the supernumerary tooth. The fused tooth was subjected to root canal treatment. Calcium hydroxide was used as intracanal medication, changed for every 30days, for 4months. Subsequently, the mesial canal received an apical plug of mineral trioxide aggregate mixed with distilled water. At 2years of follow-up, the tooth showed signs of tissue repair.

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