The stability of mandibular prognathism corrected by bilateral sagittal split osteotomies: a comparison of bi-cortical osteosynthesis and mono-cortical osteosynthesis

Stability of Pre-Orthodontic Orthognathic Surgery Using Intraoral Vertical Ramus Osteotomy Versus Conventional Treatment

“…This phenomenon differs from that of SSRO, which shows forward and upward rotation of the mandible during the postoperative period. 27 This ''adoptive rotation,'' as coined by Nihara et al, 28 is an adaptation of the mastication system, which is newly established by IVRO rather than occurring as a change owing to relapse. The proximal segment moves downward and is rotated backward by the lateral pterygoid muscles.…”

Reader’s Forum

“…There are studies which state osteotomy design does not affect the stability and in our study all osteotomy designs were identical. 4 There might be B-point change according to postsurgical orthodontic treatment; however, there is no big change in the position of lower incisor, so postsurgical orthodontic treatment is not the consideration. …”

Does Intraoral Miniplate Fixation Have Good Postoperative Stability After Sagittal Splitting Ramus Osteotomy? Comparison With Intraoral Bicortical Screw Fixation

“…Therefore, some clinical studies, including the present study, might be able to conclude similar stability in the 2 fixation systems. 10,11 The major strength of this study is the comparison of screw and miniplate fixation by an intraoral approach.…”

“…7 Recently, however, miniplates with monocortical screw fixation systems have been reported to be more stable compared with those used in the past. [8][9][10][11][12] One group reported that an intraoral miniplate fixation system was as stable as an extraoral bicortical screw fixation system. 13 Moreover, another group indicated that the application of thicker, wider miniplates with monocortical screws had equal durability compared with standard miniplates and bicortical screws.…”