Evaluation of the three-dimensional soft tissue changes after anterior segmental maxillary osteotomy

Maxillary Interdental Osteotomies Have Low Morbidity for Alveolar Crestal Bone and Adjacent Teeth: A Cone Beam Computed Tomography-Based Study

“…Maxillary interdental osteotomy (IDO) for segmentation of the maxilla can be combined with other osteotomies to achieve a better esthetic and occlusal result in the treatment of dentofacial deformities. 1 IDO can be indicated to correct a maxillary transverse deficiency, curve of Spee, anterior open bite, [2][3][4] anterior alveolar protrusion, excessive spaces between segments, tooth size discrepancies, and inclination of the incisors. 5 The most common sites for performance of the maxillary IDO are between the lateral incisors and canines and between the canines and premolars.…”

The Effect of Anterior Maxillary Segmental Osteotomy on Facial Soft Tissue Profile: A Systematic Review.

“…There were difference in nomenclature of the cephalometric landmarks between studies, also the assessment of ST movements of all the potential landmarks were not performed in some studies. Only 3 studies (Ayoub et al, 1990, Okudaira et al, 2008and Shawky et al, 2012 reported the HT: ST ratios (Table 6). …”

“…Most studies used lateral cephalometry radiographs and photography for ST and HT assessment, (Shawky et al, 2012) used CBCT for 3D evaluation of ST, they reported that CBCT more accurate than traditional methods. The results of postoperative ST changes usually compared with preoperative records statistically by using the paired ttest.…”

Evaluation of Soft and Hard Tissue Changes after Anterior Segmental Osteotomy

“…Various authors have evaluated soft and hard tissue changes after anterior segmental osteotomy and have concluded that highest correlation coefficient was obtained between the soft and hard tissue changes in the upper lip region [13,14] and minimal changes in nasal and genial landmarks [15]. Reduction of labial prominence with an increase in nasolabial angle and philtrum length [15,16], upper incisor and vermillion length decreases [16].…”