Associação de fatores relacionados à movimentação ortodôntica e o desenvolvimento de recessões gengivais
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Data
2005-11-24
Autores
Closs, Luciane Quadrado [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
O presente estudo teve por objetivo determinar a ocorrência de recessões gengivais pós-tratamento ortodôntico e os fatores a elas associados, como quantidade de gengiva ceratinizada pré-tratamento ortodôntico, alteração na inclinação dos dentes ântero-inferiores, alteração da distância intercaninos inferiores em incisivos e caninos inferiores. A amostra consistiu de fotografias intra-orais e modelos de estudo de 209 pacientes caucasianos com idade média de 11.20 l 1.83 anos nos exames iniciais e 14.7 l 1.8 anos nos exames finais. Os pacientes foram classificados como Classe I ou II de Angle e foram submetidos a tratamento ortodôntico com aparelho fixo, sem extrações. Recessões gengivais foram avaliadas em fotografias e modelos de estudo nos incisivos e caninos inferiores, nos exames iniciais e finais dos pacientes. A mensuração da gengiva ceratinizada foi feita em fotografias intra-orais e a distância intercaninos em modelos de gesso, em ambas empregando um paquímetro digital. A alteração das inclinações dos dentes ântero-inferiores foi avaliada em telerradiografia de perfil. Observou-se o aumento significativo de recessões em incisivos e caninos após o tratamento ortodôntico. A quantidade de gengiva ceratinizada previamente ao tratamento ortodôntico e a alteração da inclinação dos dentes ântero-inferiores não estão associadas ao desenvolvimento de recessões gengivais pós-tratamento ortodôntico. Também foi observada uma associação entre largura intercaninos inalterada e migração coronal da margem gengival em incisivos e caninos inferiores pós-tratamento ortodôntico.
The aim of the present study was to determine the occurrence of gingival recessions post orthodontic treatment and factors related to orthodontic movement, such as: width of keratinized gingival pre orthodontic treatment, alteration of lower anterior teeth inclination, alteration of lower intercanine distance and the development of gingival recessions in lower incisors and canines. The sample consisted of intra-oral photographs and orthodontic study models from 209 caucasian pre and post orthodontic treatment. Patients presented a mean l SD age of 11.20 l 1.83 years on their initial records and a mean age of 14.7 l 1.8 years on their final records, respectively. Patients were classified as Angle Class I or II and had a non-extraction treatment with fixed orthodontic appliances. Gingival recessions were evaluated by inspection of initial and final intra oral photographs and study models. The width of keratinized gingival was measured on intra-oral photographs and the distance between lower intercanines was measured on the study models, both by a digital caliper. Alteration in the lower anterior teeth inclination was evaluated in lateral cephalograms. A significant increase in gingival recession was observed in the lower incisors and canines post orthodontic treatment. The amount of keratinized gingival pre orthodontic treatment and the changes occurred in the lower anterior teeth are not associated to development of gingival recessions post orthodontic treatment. Unaltered intercanine width was associated with coronal margin migration in lower incisors and canines post orthodontic treatment.
The aim of the present study was to determine the occurrence of gingival recessions post orthodontic treatment and factors related to orthodontic movement, such as: width of keratinized gingival pre orthodontic treatment, alteration of lower anterior teeth inclination, alteration of lower intercanine distance and the development of gingival recessions in lower incisors and canines. The sample consisted of intra-oral photographs and orthodontic study models from 209 caucasian pre and post orthodontic treatment. Patients presented a mean l SD age of 11.20 l 1.83 years on their initial records and a mean age of 14.7 l 1.8 years on their final records, respectively. Patients were classified as Angle Class I or II and had a non-extraction treatment with fixed orthodontic appliances. Gingival recessions were evaluated by inspection of initial and final intra oral photographs and study models. The width of keratinized gingival was measured on intra-oral photographs and the distance between lower intercanines was measured on the study models, both by a digital caliper. Alteration in the lower anterior teeth inclination was evaluated in lateral cephalograms. A significant increase in gingival recession was observed in the lower incisors and canines post orthodontic treatment. The amount of keratinized gingival pre orthodontic treatment and the changes occurred in the lower anterior teeth are not associated to development of gingival recessions post orthodontic treatment. Unaltered intercanine width was associated with coronal margin migration in lower incisors and canines post orthodontic treatment.
Descrição
Palavras-chave
Movimentação dentária, Retração gengival, Gingival recession, Orthodontic movement
Como citar
CLOSS, Luciane Quadrado. Associação de fatores relacionados à movimentação ortodôntica e o desenvolvimento de recessões gengivais. 2005. 158 p. Tese (Doutorado) - Universidade Estadual Paulista, Faculdade de Odontologia, 2005.