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Relação entre agenesia do incisivo lateral e outras agenesias na cavidade oral
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Objetivos: Avaliar a prevalência da agenesia uni e bilateral do incisivo lateral superior (ILS) permanente e a sua relação com outras agenesias, na cavidade oral, numa população a frequentar uma unidade privada de Ortodontia. Materiais e métodos: Foi realizado um estudo observacional, no qual 145 de 6689 casos foram analisados através dos dados da ficha clínica e da ortopantomografia, para posterior avaliação da relação da agenesia do ILS uni ou bilateral com a agenesia de outros dentes. Para a análise estatística foi utilizado o teste do qui-quadrado e o nível de significância considerado foi de p < 0,05. Resultados: Num total de 6689 casos, foi observada uma prevalência da agenesia do ILS de 2,2%, sendo que desta, 37,2% e 62,8% dos casos foram de agenesia unilateral e bilateral, respetivamente. Foi reportado um valor superior de agenesia do ILS no género feminino, com uma prevalência de 62,8%, e entre os 5 e os 15 anos, sendo que este intervalo de idades foi associado a uma prevalência estatisticamente significativa de agenesia bilateral do ILS (p = 0,009). Não foi encontrada uma relação estatisticamente significativa entre a agenesia do ILS e a agenesia de outros dentes (p = 0,280), sendo os dente mais afetados o pré-molar superior (10,3%, p = 0,741) e o pré-molar inferior (16,6%, p = 0,997). Conclusões: A prevalência da agenesia do ILS numa população ortodôntica foi de 2,2%. Verificou-se uma predominância da agenesia bilateral entre os 5 e os 15 anos de idade, que foi significativa. A agenesia do ILS foi mais frequente no género feminino, na sua forma bilateral e esteve mais associada à agenesia de pré-molares superiores e inferiores, embora de uma forma não significativa estatisticamente.
Objetives: To evaluate the prevalence of unilateral and bilateral agenesis of the lateral superior incisor (ILS) and its relationship with other agenesis in the oral cavity, in a population attending a private Orthodontics unit. Materials and methods: An observational study was conducted in which 145 of 6689 cases were analyzed through data from the clinical file and orthopantomography, for posterior evaluation of the relationship of agenesis of ILS uni or bilateral with agenesis of other teeth. For the statistical analysis, the chi-square test was used and the level of significance considered was p <0.05. Results: In a total of 6689 cases, a prevalence of ILS agenesis of 2.2% was observed, of which, 37.2% and 62.8% of the cases were unilateral and bilateral agenesis, respectively. A higher ILS agenesis was reported in females, with a prevalence of 62.8%, and between 5 and 15 years, and this age range was associated with a statistically significant prevalence of bilateral ILS agenesis ( p = 0.009). No statistically significant relationship was found between ILS agenesis and agenesis of other teeth (p = 0.280), with the most affected teeth being the upper premolar (10.3%, p = 0.741) and the lower premolars (16.6%, p = 0.997). Conclusions: The prevalence of ILS agenesis in an orthodontic population was 2.2%. There was a predominance of bilateral agenesis between 5 and 15 years of age, which was significant. The agenesis of ILS was more frequent in the female gender, in its bilateral form and was more associated with agenesis of upper and lower premolars, although not statistically significant.
Objetives: To evaluate the prevalence of unilateral and bilateral agenesis of the lateral superior incisor (ILS) and its relationship with other agenesis in the oral cavity, in a population attending a private Orthodontics unit. Materials and methods: An observational study was conducted in which 145 of 6689 cases were analyzed through data from the clinical file and orthopantomography, for posterior evaluation of the relationship of agenesis of ILS uni or bilateral with agenesis of other teeth. For the statistical analysis, the chi-square test was used and the level of significance considered was p <0.05. Results: In a total of 6689 cases, a prevalence of ILS agenesis of 2.2% was observed, of which, 37.2% and 62.8% of the cases were unilateral and bilateral agenesis, respectively. A higher ILS agenesis was reported in females, with a prevalence of 62.8%, and between 5 and 15 years, and this age range was associated with a statistically significant prevalence of bilateral ILS agenesis ( p = 0.009). No statistically significant relationship was found between ILS agenesis and agenesis of other teeth (p = 0.280), with the most affected teeth being the upper premolar (10.3%, p = 0.741) and the lower premolars (16.6%, p = 0.997). Conclusions: The prevalence of ILS agenesis in an orthodontic population was 2.2%. There was a predominance of bilateral agenesis between 5 and 15 years of age, which was significant. The agenesis of ILS was more frequent in the female gender, in its bilateral form and was more associated with agenesis of upper and lower premolars, although not statistically significant.
Descrição
Tese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2017
Palavras-chave
Ortodontia Incisivos Teses de mestrado - 2017