Extração atípica de incisivo em caso de protrusão excessiva anteroinferior ­ relato de caso / Atypical incisor extraction in case of excessive anteroinferior protrusion ­ case report

Resumo O tratamento ortodôntico com extrações atípicas, quando bem planejado e conduzido, é uma excelente abordagem terapêutica. Esse estudo objetivou apresentar um caso clínico de retratamento ortodôntico em paciente adulto com aparatologia fixa em ambos os arcos e extração do dente 31, e discutir os limites de aceitação do organismo às movimentações ortodônticas. Paciente de 23 anos, vindo de um tratamento ortodôntico anterior, compareceu à clínica da Escola de Especialização Profissional da ABO/MA com relato de dor na região dos incisivos inferiores e queixa estética. Identificou-se a presença de problema periodontal por excesso de vestibularização dos incisivos inferiores. O tratamento ortodôntico adotado corrigiu a vestibularização excessiva dos incisivos inferiores, eliminando as queixas do paciente, e restabelecendo o overjet e overbite ideais, além de manter as relações oclusais de Classe I bilateral. Concluiu-se, neste caso, que a extração de um incisivo foi uma alternativa eficaz para correção da vestibularização excessiva dos incisivos inferiores.(AU)

Abstract Orthodontic treatment with atypical extractions, when well planned and conducted, is an excellent therapeutic approach. This study aimed to present a clinical case of orthodontic retreatment in an adult patient with fixed appliance in both arches and extraction of tooth 31, and discuss the limits of the body's acceptance to orthodontic movements. A 23-year-old patient, coming from a previous orthodontic treatment, attended the clinic of the Professional Specialization School of ABO/MA with a report of pain in the region of the mandibular incisors and aesthetic complaint. The presence of periodontal problem due to excessive buccalization of the mandibular incisors was identified. The orthodontic treatment adopted corrected the excessive buccalization of the mandibular incisors, eliminating the patient's complaints, and restoring the ideal overjet and overbite, in addition to maintaining bilateral Class I occlusal relationships. It was concluded that, in this case, the extraction of an incisor was an effective alternative for the correction of excessive buccalization of the mandibular incisors.(AU)

Tratamento da má oclusão de Classe II com o propulsor mandibular PMW: acompanhamento de 4 anos / Treatment of CL II malocclusion with the PMW-type mandibular propulsion: 4-year follow-up

O presente artigo teve como objetivo descrever, por meio de um caso clínico, o manejo ortopédico com intenção corretiva de um paciente Padrão II por retrusão mandibular, má oclusão de Classe II divisão 1 e face aceitável. Relato do caso: O paciente foi submetido a um tratamento com o propulsor mandibular Westerich (PMW) associado à ortodontia fixa. Resultados: A terapia utilizada proporcionou a correção da relação sagital de Classe II, com considerável ganho estético no perfil facial em razão da suavização da ângulo mentolabial e da compensação com inclinação vestibular dos incisivos inferiores. No acompanhamento de 4 anos pôde-se observar excelente estabilidade do tratamento com manutenção dos efeitos dentoalveolares, boa qualidade da tábua óssea vestibular e da inserção gengival dos incisivos inferiores. Conclusão: o aparelho ortopédico fixo PMW é uma opção eficaz para o tratamento de paciente Padrão II por deficiência mandibular quando os objetivos, principalmente, de ordem dentoalveolares são almejados. O aparelho é de fácil instalação, confortável e depende minimamente da cooperação do paciente, além de proporcionar resultados extremamente satisfatórios com a correção das relações oclusais e estabilidade a longo prazo (AU)

Introduction: The paper describes, through a case report, an orthopedic management of a Pattern II with mandibular retrusion patient, associated with Class II division 1 malocclusion and an acceptable face. Case report: The patient underwent treatment with the Westerich fixed functional device (PMW) associated with fixed orthodontics. Results: The therapy provided correction of the Class II sagittal relationship, with considerable aesthetic improvement due to smoothing of the mentolabial angle and dental compensation by buccal inclination of the lower incisors. 4-year follow-up showed excellent stability and maintenance of dentoalveolar effects. Also, good quality of the buccal bone plate and gingival insertion of the lower incisors were observed. Conclusion: PMW is an effective option for the Pattern II patients with mandibular deficiency treatment when, mostly dentoalveolar effects, are pursued. The device has easy installation, is comfortable and depends minimally on the patient's cooperation. In addition, it provides satisfactory results with the correction of occlusal relationships and long-term stability.(AU)

Esthetic perception of facial profile changes after extraction and nonextraction Class II treatment.

This retrospective study evaluated facial profile pleasantness determined by two protocols of Class II treatment. The sample comprised facial profile silhouettes obtained retrospectively from the pretreatment (T1) and posttreatment (T2) cephalograms of 60 patients (42 males and 18 females) divided into two groups. One group of 30 patients (mean age of 12.84 years) was treated with the extraction of maxillary first premolars (mean treatment time of 2.7 years), and the other group of 30 patients (mean age of 12.81 years) was treated with a mandibular advancement appliance (Forsus) (mean treatment time of 2.49 years). The facial profile silhouettes (T1 and T2) were randomly distributed in an album containing one patient per sheet. The examiners consisted of 60 orthodontists and 60 lay individuals, who analyzed the profiles in regard to facial pleasantness, using the Likert scale. A comparison between stages T1 and T2 of the two treatment protocols and between the examiners was performed by mixed-design analysis of variance at a significance level of 5%. The results demonstrated a significant difference between T1 and T2 (greater scores for T2 compared to T1), and between lay individuals and orthodontists (orthodontists assigned higher scores), but with no significant difference between the treatment protocols. Both protocols produced positive effects on the facial profile esthetics, from the standpoint of lay individuals and orthodontists.

Esthetic perception of facial profile changes after extraction and nonextraction Class II treatment

Abstract This retrospective study evaluated facial profile pleasantness determined by two protocols of Class II treatment. The sample comprised facial profile silhouettes obtained retrospectively from the pretreatment (T1) and posttreatment (T2) cephalograms of 60 patients (42 males and 18 females) divided into two groups. One group of 30 patients (mean age of 12.84 years) was treated with the extraction of maxillary first premolars (mean treatment time of 2.7 years), and the other group of 30 patients (mean age of 12.81 years) was treated with a mandibular advancement appliance (Forsus) (mean treatment time of 2.49 years). The facial profile silhouettes (T1 and T2) were randomly distributed in an album containing one patient per sheet. The examiners consisted of 60 orthodontists and 60 lay individuals, who analyzed the profiles in regard to facial pleasantness, using the Likert scale. A comparison between stages T1 and T2 of the two treatment protocols and between the examiners was performed by mixed-design analysis of variance at a significance level of 5%. The results demonstrated a significant difference between T1 and T2 (greater scores for T2 compared to T1), and between lay individuals and orthodontists (orthodontists assigned higher scores), but with no significant difference between the treatment protocols. Both protocols produced positive effects on the facial profile esthetics, from the standpoint of lay individuals and orthodontists.