Condylar position following mandibular advancement: Its relationship to relapse

Three-dimensional assessment of mandibular advancement 1 year after surgery

“…The condyles rotated transversally with mandibular advancement as the proximal and distal surgical segments were repositioned with surgery. These findings corroborate those of studies that used submentovertex radiography 25,26 and cross-sectional slices with computed tomography. 4,27,30 Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm).…”

“…4,27,30 Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm). 4,[25][26][27][28][29][30] The literature supports our findings that small condylar rotations do not appear to have a functional compromise, and rotation apparently tends to reduce with time because of the remodeling process. 1,4,[25][26][27][28][29][30][31][32] The hierarchy of stability for current orthognathic surgical procedures has been determined based on lateral cephalograms from the UNC dentofacial program database.…”

“…4,[25][26][27][28][29][30] The literature supports our findings that small condylar rotations do not appear to have a functional compromise, and rotation apparently tends to reduce with time because of the remodeling process. 1,4,[25][26][27][28][29][30][31][32] The hierarchy of stability for current orthognathic surgical procedures has been determined based on lateral cephalograms from the UNC dentofacial program database. 1,2,33 Those assessments indicate that mandibular advancement up to about 10 mm is highly stable in patients with a normal or short face, with approximately 10% of the patients having clinically detectable post-treatment changes (2 mm or more) at 1 year postsurgery.…”

Three-dimensional assessment of mandibular advancement 1 year after surgery

“…The condyles rotated transversally with mandibular advancement as the proximal and distal surgical segments were repositioned with surgery. These findings corroborate those of studies that used submentovertex radiography 25,26 and cross-sectional slices with computed tomography. 4,27,30 Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm).…”

“…4,27,30 Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm). 4,[25][26][27][28][29][30] The literature supports our findings that small condylar rotations do not appear to have a functional compromise, and rotation apparently tends to reduce with time because of the remodeling process. 1,4,[25][26][27][28][29][30][31][32] The hierarchy of stability for current orthognathic surgical procedures has been determined based on lateral cephalograms from the UNC dentofacial program database.…”

“…4,[25][26][27][28][29][30] The literature supports our findings that small condylar rotations do not appear to have a functional compromise, and rotation apparently tends to reduce with time because of the remodeling process. 1,4,[25][26][27][28][29][30][31][32] The hierarchy of stability for current orthognathic surgical procedures has been determined based on lateral cephalograms from the UNC dentofacial program database. 1,2,33 Those assessments indicate that mandibular advancement up to about 10 mm is highly stable in patients with a normal or short face, with approximately 10% of the patients having clinically detectable post-treatment changes (2 mm or more) at 1 year postsurgery.…”

Editor's Comment and Q&A

“…The condyles rotated transversally with mandibular advancement as the proximal and distal surgical segments were repositioned with surgery. These findings corroborate those of studies that used submentovertex radiography25,26 and cross-sectional slices with computed tomography 4,27,30. Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm) 4,25–30.…”

The Clinical and Radiographic Changes of Temporomandibular Joint (TMJ) Following Mandibular Set Back Surgery by Bilateral Sagittal Split Osteotomy (BSSO)

“…There was no statistically significant difference before and after surgery in the study of the upper joint space. Other studies also corroborate this finding [20][21][22][23][24][25][26] .…”

Three-dimensional assessment of mandibular advancement 1 year after surgery

“…The condyles rotated transversally with mandibular advancement as the proximal and distal surgical segments were repositioned with surgery. These findings corroborate those of studies that used submentovertex radiography 25,26 and cross-sectional slices with computed tomography. 4,27,30 Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm).…”

“…4,27,30 Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm). 4,[25][26][27][28][29][30] The literature supports our findings that small condylar rotations do not appear to have a functional compromise, and rotation apparently tends to reduce with time because of the remodeling process. 1,4,[25][26][27][28][29][30][31][32] The hierarchy of stability for current orthognathic surgical procedures has been determined based on lateral cephalograms from the UNC dentofacial program database.…”

“…4,[25][26][27][28][29][30] The literature supports our findings that small condylar rotations do not appear to have a functional compromise, and rotation apparently tends to reduce with time because of the remodeling process. 1,4,[25][26][27][28][29][30][31][32] The hierarchy of stability for current orthognathic surgical procedures has been determined based on lateral cephalograms from the UNC dentofacial program database. 1,2,33 Those assessments indicate that mandibular advancement up to about 10 mm is highly stable in patients with a normal or short face, with approximately 10% of the patients having clinically detectable post-treatment changes (2 mm or more) at 1 year postsurgery.…”

Editor's Comment and Q&A

“…The condyles rotated transversally with mandibular advancement as the proximal and distal surgical segments were repositioned with surgery. These findings corroborate those of studies that used submentovertex radiography25,26 and cross-sectional slices with computed tomography 4,27,30. Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm) 4,25–30.…”

The Clinical and Radiographic Changes of Temporomandibular Joint (TMJ) Following Mandibular Set Back Surgery by Bilateral Sagittal Split Osteotomy (BSSO)

“…There was no statistically significant difference before and after surgery in the study of the upper joint space. Other studies also corroborate this finding [20][21][22][23][24][25][26] .…”

Three-dimensional assessment of mandibular advancement 1 year after surgery

“…The condyles rotated transversally with mandibular advancement as the proximal and distal surgical segments were repositioned with surgery. These findings corroborate those of studies that used submentovertex radiography 25,26 and cross-sectional slices with computed tomography. 4,27,30 Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm).…”

“…4,27,30 Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm). 4,[25][26][27][28][29][30] The literature supports our findings that small condylar rotations do not appear to have a functional compromise, and rotation apparently tends to reduce with time because of the remodeling process. 1,4,[25][26][27][28][29][30][31][32] The hierarchy of stability for current orthognathic surgical procedures has been determined based on lateral cephalograms from the UNC dentofacial program database.…”

“…4,[25][26][27][28][29][30] The literature supports our findings that small condylar rotations do not appear to have a functional compromise, and rotation apparently tends to reduce with time because of the remodeling process. 1,4,[25][26][27][28][29][30][31][32] The hierarchy of stability for current orthognathic surgical procedures has been determined based on lateral cephalograms from the UNC dentofacial program database. 1,2,33 Those assessments indicate that mandibular advancement up to about 10 mm is highly stable in patients with a normal or short face, with approximately 10% of the patients having clinically detectable post-treatment changes (2 mm or more) at 1 year postsurgery.…”

Editor's Comment and Q&A

“…The condyles rotated transversally with mandibular advancement as the proximal and distal surgical segments were repositioned with surgery. These findings corroborate those of studies that used submentovertex radiography25,26 and cross-sectional slices with computed tomography 4,27,30. Changes in all planes have been described, with reported variability in condylar orientation changes (1° to 18°) and changes in intercondylar distance (−5 to +4 mm) 4,25–30.…”

The Clinical and Radiographic Changes of Temporomandibular Joint (TMJ) Following Mandibular Set Back Surgery by Bilateral Sagittal Split Osteotomy (BSSO)

“…There was no statistically significant difference before and after surgery in the study of the upper joint space. Other studies also corroborate this finding [20][21][22][23][24][25][26] .…”