Taurodontism, Root Dilaceration, and Tooth Transposition: A Radiographic Study of a Population With Nonsyndromic Cleft Lip and/or Palate

Author(s)

Weckwerth, Giovana Maria ; Santos, Carlos F. ; Brozoski, Daniel T. ; Centurion, Bruna S. ; Pagin, Otavio ; Lauris, Jose Roberto P. ; Carvalho, Izabel Maria M. ; Neves, Lucimara T.

• Document type: Journal article
• Source: CLEFT PALATE-CRANIOFACIAL JOURNAL; v. 53, n. 4, p. 404-412, JUL 2016.
• Web of Science Citations: 1

Abstract

Objectives: In an effort to contribute to proper dental planning and define possible dental phenotypes of nonsyndromic cleft lip and/or palate (CL/P), this study aimed to investigate the occurrence of taurodontism, root dilaceration, and tooth transposition in persons with nonsyndromic CL/P, specifically analyzing the differences among gender, cleft types, and the most affected teeth. Design: This retrospective study analyzed 974 panoramic x-rays from nonsyndromic Brazilians older than 16 years and categorized into the following four groups: group 1, 250 persons with unilateral cleft lip and palate; group 2, 250 persons with unilateral cleft lip; group 3, 224 persons with cleft palate; and a control group of 250 persons without clefts. Radiographs were digitalized with a scanner and analyzed. Results: In the Brazilian population studied, the prevalence of taurodontism was 60.4% in group 1, 62.4% in group 2, 67.0% in group 3, and 42.8% in the control group. Root dilacerations had a prevalence of 31.2% in group 1, 29.6% in group 2, 26.3% in group 3, and 27.2% in the control group. The teeth most affected by taurodontism were 17 and 27; whereas root dilacerations were most common in teeth 38 and 48. No tooth transpositions were found in any radiograph analyzed. Conclusions: Taurodontism is significantly more prevalent in Brazilians with nonsyndromic CL/P than in persons without clefts; whereas the prevalence of root dilaceration no different from that in the control group. However, root dilacerations in anterior teeth were increased in groups 1 and 2 when compared to the control group. (AU)

• FAPESP's process: 10/20391-6 - Tooth transposition, root dilaceration and taurodontism: a radiographic study in a population of individuals with cleft lip and palate
• Grantee: Giovana Maria Weckwerth
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 10/18174-7 - Tooth transposition, root dilaceration and taurodontism: a radiographic study in a population of individuals with cleft lip and palate
• Grantee: Lucimara Teixeira das Neves
• Support Opportunities: Regular Research Grants