Avaliação cefalométrica do espaço aéreo posterior em pacientes com oclusão Classe II submetidos à cirurgia ortognática
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Data
2007-10-01
Autores
Pereira Filho, Valfrido Antonio [UNESP]
Jeremias, Fabiano [UNESP]
Tedeschi, Lilian
Souza, Raphael Freitas de
Título da Revista
ISSN da Revista
Título de Volume
Editor
Dental Press Editora
Resumo
OBJETIVO: o avanço maxilomandibular é um método cirúrgico comumente usado no tratamento de pacientes acometidos pela Síndrome da Apnéia Obstrutiva do Sono (SAOS) e portadores de anormalidades anatômicas identificáveis neste complexo, que estreitam e/ou obstruem o espaço aéreo. O intuito deste estudo foi analisar variações cefalométricas do espaço aéreo faríngeo em indivíduos Classe II de Angle, após a cirurgia ortognática. METODOLOGIA: a amostra consistiu de telerradiografias laterais equivalentes aos períodos pré e pós-operatório de 30 indivíduos, divididos no grupo com avanço cirúrgico mandibular (n=15) e no grupo com avanço maxilomandibular (n=15). Os parâmetros cefalométricos usados permitiram avaliar o espaço aéreo posterior em 3 níveis: a hipofaringe (PFI-V), a orofaringe (PFM-PM, PFM-PO, PFM-U, PFM-Up) e a nasofaringe (PFM-PN, pm-PFS). A análise esquelética foi na base do crânio (N-S-Ba) e na mandíbula (Ar-Go-Me). A média das diferenças entre os valores pré e pós-operatórios das mensurações lineares (mm) e angulares (graus) foi avaliada pelo teste t pareado. RESULTADOS E CONCLUSÕES: estatisticamente, não houve redução do espaço aéreo faríngeo pós-avanço cirúrgico. O que se observou foi que apenas PFM-PO e PFS-pM se mantiveram constantes e na maioria restante os valores aumentaram.
AIM: Maxillomandibular advancement is a surgical treatment for patients suffering from obstructive sleep apnea syndrome (OSAS) and those with identificable anatomic abnormalities in this complex that narrows and/or obstructs the airway. The purpose of this study is to evaluate pharyngeal airway space cephalometric variations in patients affected by Class II, treated with orthognatic surgery. METHODS: The sample consisted of pre and postoperative (minimum 6 months) lateral radiographs of 30 patients, that had undergone mandibular (n=15) and maxillomandibular (n=15) advancement. The cephalometric parameters used allowed to evaluate the posterior airway space at three levels: the hypopharynx (V-LPW), the oropharynx (PAS-MP, PAS-OP, PAS-U and PAS-Up) and the nasopharynx (PAS-NP, pm-UPW). The skeletal analyse was in cranial base (N-S-Ba) and in mandible (Ar-Go-Me). The mean difference between the pre and postoperative linear (mm) and angular (degree) measurements was evaluated by paired t test. RESULTS and CONCLUSIONS: Statistically, there was no pharynx airway space reduction after surgery advancement. It was noted that only PAS-OP and pm-UPW remained constant and the values increased, for the most remaining part.
AIM: Maxillomandibular advancement is a surgical treatment for patients suffering from obstructive sleep apnea syndrome (OSAS) and those with identificable anatomic abnormalities in this complex that narrows and/or obstructs the airway. The purpose of this study is to evaluate pharyngeal airway space cephalometric variations in patients affected by Class II, treated with orthognatic surgery. METHODS: The sample consisted of pre and postoperative (minimum 6 months) lateral radiographs of 30 patients, that had undergone mandibular (n=15) and maxillomandibular (n=15) advancement. The cephalometric parameters used allowed to evaluate the posterior airway space at three levels: the hypopharynx (V-LPW), the oropharynx (PAS-MP, PAS-OP, PAS-U and PAS-Up) and the nasopharynx (PAS-NP, pm-UPW). The skeletal analyse was in cranial base (N-S-Ba) and in mandible (Ar-Go-Me). The mean difference between the pre and postoperative linear (mm) and angular (degree) measurements was evaluated by paired t test. RESULTS and CONCLUSIONS: Statistically, there was no pharynx airway space reduction after surgery advancement. It was noted that only PAS-OP and pm-UPW remained constant and the values increased, for the most remaining part.
Descrição
Palavras-chave
Cefalometria, Cavidade nasofaríngea, Oclusão Classe II, Cirurgia ortognática, Cephalometry, Nasopharyngeal cavity, Class II occlusion, Orthognatic surgery
Como citar
Revista Dental Press de Ortodontia e Ortopedia Facial. Dental Press Editora, v. 12, n. 5, p. 119-125, 2007.