Objective: The objective of this study was to clinically and radiographically assess the peri-implant conditions of implants used as orthodontic anchorage. Methods: Two groups were studied: 1) a test group in which osseointegrated implants were used as orthodontic anchorage, with the application of 200-cN force; and 2) a control group in which implants were not subjected to orthodontic force, but supported a screw-retained prosthesis. Clinical evaluations were performed three, six and nine months after prosthesis installation and 1- and 3-year follow-up examinations. Intraoral periapical radiographs were obtained 30 days after surgical implant placement, at the time of prosthesis installation, and one, two and three years thereafter. The results were compared by Kruskal-Wallis test. Results: There was no statistically significant difference in clinical probing depth (p = 0.1078) or mesial and distal crestal bone resorption (p = 0.1832) during the study period. After three years of follow-up, the mean probing depth was 2.21 mm for the control group and 2.39 mm for the test group. The implants of the control group showed a mean distance between the bone crest and implant shoulder of 2.39 mm, whereas the implants used as orthodontic anchorage showed a mean distance of 2.58 mm at the distal site. Conclusion: Results suggest that the use of stable intraoral orthodontic anchorage did not compromise the health of peri-implant tissues or the longevity of the implant.
Analisar todas as fraturas tratadas no Serviço de Cirurgia e Traumatologia Bucomaxilofacial do Hospital Universitário do Oeste do Paraná, bem como observar os índices de complicações relacionados ao tratamento cirúrgico e não-cirúrgico de tais fraturas, contribuindo assim, para o esclarecimento da melhor forma de tratamento destas lesões. Métodos: 75 pacientes com fratura de côndilo mandibular foram analisados quanto a etiologia, idade prevalente, utilização de dispositivos de segurança, formas de tratamento e complicações relacionadas ao tratamento empregado. Resultados: 53 casos foram tratados de maneira não-cirúrgica e 22 pacientes tratados com cirurgia, onde o índice de complicações foi de 15,1% para tratamentos não-cirúrgicos e de 54,5% para tratamentos cirúrgicos. A complicação mais comum foi a paresia do nervo Facial sendo responsável por 45% das complicações. Outras complicações foram: desvio durante abertura bucal (40% das complicações); má-oclusão (20%); reabsorção condilar (5,7%) e fístula salivar (2,8%). Conclusões: É possível dizer que pacientes tratados de maneira não-cirúrgica apresentam uma recuperação pós-traumática em longo prazo tão boa quanto os pacientes tratados cirurgicamente, visto que inicialmente eles têm um atraso no retorno às funções, porém, estão livres de riscos inerentes a cirurgia. O tratamento cirúrgico deve ser considerado e a escolha deve ser individualizada a cada caso. (Rev Port Estomatol Med Dent Cir Maxilofac.
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