Investigating the postoperative soft tissue changes in different vertical facial divergent patients with mandibular prognathism.
J Dent Sci
; 19(3): 1443-1451, 2024 Jul.
Article
in En
| MEDLINE
| ID: mdl-39035289
ABSTRACT
Background/purpose:
The extent of three-dimensional soft tissue changes in patients with varied facial skeletal patterns following mandibular setback surgery remains unclear. In this study, we aimed to investigate the postoperative changes in soft tissue chin thickness among mandibular prognathism patients, focusing on those presenting different divergence patterns, such as hyperdivergent and normodivergent patients. Materials andmethods:
Cone-beam computed tomography images were obtained from 56 skeletal Class III patients who underwent only mandibular setback. Based on vertical craniofacial skeletal relationship, patients were divided into normodivergent group (27°Results:
Preoperative B-B' and Pog-Pog' thickness were significantly thinner in the hyperdivergent group than normodivergent group. Postoperative changes in B-B' and Pog-Pog' thickness were significantly larger in the hyperdivergent group than normodivergent group. A significant correlation was found between soft tissue thickness change (B-B' and Pog-Pog') and the preoperative soft tissue thickness and superior movement (B and Pog).Conclusion:
Hyperdivergent patients with skeletal class III have thinner preoperative soft tissue thickness (B-B' and Pog-Pog') than normodivergent patients in the preoperation. Postoperative changes in B-B' and Pog-Pog' thickness were significantly larger in the hyperdivergent group than normodivergent group. Postoperative superior movement of B and Pog correlated with postoperative change of soft tissue thickness.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Dent Sci
Year:
2024
Document type:
Article
Affiliation country:
Taiwán
Country of publication:
Países Bajos