Revista de Odontologia da UNESP
https://revodontolunesp.com.br/article/doi/10.1590/1807-2577.09119
Revista de Odontologia da UNESP
Original Article

Association between agenesis and root morphology of anterior teeth

Associação entre agenesia e a morfologia radicular de dentes anteriores

Rodrigo BORALI; Carolina Carmo de MENEZES; Giovana Cherubini VENEZIAN; Silvia Amélia Scudeler VEDOVELLO; Viviane Veroni DEGAN

http://dx.doi.org/10.1590/1807-2577.09119 Rev. odontol. UNESP, vol.48, e20190091, 2019
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Abstract

Abstract: Introduction: Tooth agenesis is likely to affect the root teeth and should be considerated in orthodontic tratament.

Objective: The aim of this study was to assess the association between agenesis and root morphology of anterior teeth.

Material and method: The anterior teeth of 51 individuals were evaluated on 102 periapical radiographs and then divided into three groups: Group 1 (n=16) – no tooth agenesis; Group 2 (n=17) – only third molar agenesis; and Group 3 (n=18) – tooth agenesis of premolars or lateral incisors. Root morphology of anterior teeth was evaluated and the roots were classified as short, blunt, apically bent, and pipette-shaped. Fisher’s exact test was used to compare root shapes, the chi-square test was used to obtain the distribution of sexes between the groups, and ANOVA was performed to compare the ages between the groups. The significance level was set at 5% for all analyses.

Result: There was significant difference in root shapes (P<0.05) between the groups. Blunt roots were the most prevalent in all groups, but their rate was higher in Group 3 (83%).

Conclusion: There was association between agenesis and root morphology of anterior teeth.

Keywords

Orthodontic, tooth agenesis, tooth apex, tooth root

Resumo

Resumo: Introdução:

A agenesia dentária pode afetar a raiz radicular e deve ser considerada no tratamento ortodôntico. Objetivo:

O objetivo deste estudo foi avaliar a associação entre agenesia dentária e a morfologia radicular dos dentes anteriores.

Material e método: Foram avaliadas em 102 radiografias periapicais dos dentes anteriores de 51 indivíduos divididos em 3 grupos: Grupo 1 (n=16) sem agenesia dentária; Grupo 2 (n=17) com agenesia dentária de terceiros molares; Grupo 3 (n=18) com agenesia dentária apenas de prés-molares ou incisivos laterais. A morfologia radicular dos dentes anteriores foi avaliada sendo classificada como raiz curta, abaulada, tortuosa e pipeta. Para a comparação do formato radicular foi utilizado o teste Exato de Fisher, para a distribuição dos sexos entre os grupos foi realizado o teste qui-quadrado e para comparar as idades entre os grupos foi realizada o teste ANOVA, todas as análises com nível de significância de 5%.

Resultado: Os resultados evidenciaram diferença significante nos formatos das raízes (P<0,05) entre os grupos com e sem agenesia. O formato radicular abaulado foi o mais prevalente em todos os grupos, aparecendo em maior número no grupo 3 (84,3%).

Conclusão: Conclui-se que houve associação entre agenesia dentária e a morfologia radicular dos dentes anteriores.
 

Palavras-chave

Ortodontia, agenesia dentária, ápice dentário, raiz dentária

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