NCT06873451

Effects of Orthognathic Surgery on Root Resorption and Soft Tissues

3D Comparison Effects of Two Different Surgical Timings in Orthognathic Surgery on Root Resorption and Soft Tissues: Surgery First vs. Surgery Early

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 24 (actual)
• Sponsor: Gokhan Coban · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The aim of this study is to evaluate the three-dimensional tomographic and photographic evaluation of the provision of two different orthognathic surgeries on hard and soft tissues with informative Class III deformity due to maxillary retrognathia and mandibular prognathia.

Detailed description

Patients who will undergo non-extraction surgery will be randomized as 'Pre-Surgery' (SEC) and 'Early Surgery' (EC). Maxillary advancement and mandibular recession will be calculated and a total of 24 patients, 12 in each group, will be included in the study. Millimetric (length, dehiscence, fenestration) and volumetric measurements and soft tissue anthropometric points will be measured in three-dimensional recordings taken at the beginning of treatment (T0) and after debonding (T1). Cone beam computed tomography (CBCT) images will be transferred to NNT and 'Mimics 18.0' programs for measurements. Three-dimensional photographs will be evaluated in the 3dMDvultus program. Shapiro-Wilk test will be used for normality, 'two independent samples t-test' and 'Mann Whitney U test' will be used for intra-group and inter-group comparisons.

Conditions

• Orthodontics
• Orthognathic Surgical Procedures

Interventions

Type	Name	Description
PROCEDURE	Surgery First	One month after surgery, patients were called for an appointment and lower and upper brackets were placed. Treatment was completed when right-left Class I canine and molar relationships and ideal overjet and overbite relationships were achieved.
PROCEDURE	Surgery Early	The patients were directed to surgery with the upper and lower bonds applied at their first appointment and the brackets in their mouths. After surgery, treatment continued until the right-left Class I canine and molar relationship and the ideal overjet and overbite relationship were achieved.

Timeline

• Start date: 2023-10-15
• Primary completion: 2025-08-25
• Completion: 2025-08-26
• First posted: 2025-03-12
• Last updated: 2026-03-09

Locations

1 site across 1 country: Turkey (Türkiye)