ODONT 2007 Diciembre.indd Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:Tabla normal; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibri,sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-fareast-language:EN-US;} Introduccion: el proposito de este estudio fue evaluar el acompanamiento de los tejidos blandos a los duros luego de cirugia ortognatica bimaxilar con mentoplastia o sin ella. Metodos: en veintidos pacientes que asistieron durante los anos 2004 a 2006 al Hospital Universitario San Vicente de Paul (HUSVP). Se tomaron dos radiografias: prequirurgica (T1) un mes antes de la cirugia y posquirurgica (T2) dieciocho meses despues. Resultados: en este estudio se encontro que en el maxilar en el plano horizontal, el mayor acompanamiento lo presento labralis superior con 95%, seguido de subnasal y punta nasal con 67 y 60% respectivamente. En la mandibula fue del 111, 81,9, 69, 68 y 30% para el labralis inferior, punto B, menton, pogonion y gnation respectivamente; en tanto en sentido vertical el seguimiento fue de 112, 100 y 55%, para labralis superior, la punta nasal y subnasal respectivamente. La mandibula mostro seguimiento de 92% para menton, 72 para gnation, 54 para pogonion y 32 para punto B con relacion a sus correspondientes puntos de tejidos duros. Al comparar las diferencias de acompanamiento de los tejidos blandos a los tejidos duros en el plano horizontal, en los pacientes con mentoplastia y sin ella; se encontro diferencia significativa en el punto B y pogonion, a su vez en el plano vertical en gnation, punto B y pogonion. Conclusion: se concluye que el acompanamiento de los tejidos blandos a los tejidos duros despues de cirugia ortognatica bimaxilar a los dieciocho meses de la cirugia es diferente a las cirugias unimaxilares y se deben establecer parametros para nuestra poblacion latinoamericana. ABSTRACT. Introduction: the purpose of this study was to evaluate the long term follow up of soft tissues to hard tissues after bimaxillary orthognathic surgery with or without mentoplasty Methods: twenty two patients treated at the Hospital Universitario San Vicente de Paul (HUSVP) during years 2004 to 2006. Two radiographs were taken: pre-surgery (T1) one month before surgery and post-surgery (T2) eighteen months after the procedure. Results: it was found in this study that in the horizontal maxillary plane, upper labralis had the highest follow up with 95 %, followed by subnasal and nasal tip with 67 and 60% respectively. In the mandible the results were 111%, 81.9, 69, 68 and 30% for inferior labralis, Point B, menton, pogonion and gnation respectively; In the vertical plane the follow up was 112, 100 and 55% for upper labralis, nasal tip and subnasal respectively. The mandible showed a follow up of 92% for menton, 72 for gnathion, 54 for pogonion and 32 for Point B in relationship with their corresponding hard tissue points. When we compared the differences of follow up of soft tissues in relation with the hard tissues in the horizontal plane in patients with and without mentoplasty,a statistically significative difference was found for point B and Pogonion: in the vertical plane the difference was significant for Gnation, Point B and pogonion. Conclusions: it is concluded that the follow up of soft tissues to hard tissues after orthognathic bimaxillary surgery eighteen months later is different to uni-maxillary surgery and new parameters must be established for the Latin American population.