Related Experiment Video
Updated: Nov 26, 2025
Treatment of Facial Deformities using 3D Planning and Printing of Patient-Specific Implants
Published on: May 23, 2020
Orthodontic incisor decompensation in orthognathic therapy-success and efficiency in three dimensions
Anja Quast1, Petra Santander2, Johanna Leding2
1Department of Orthodontics, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075, Goettingen, Germany. anja.quast@med.uni-goettingen.de.
Objectives:
Sufficient dental decompensation is crucial for treatment success in combined orthodontic-surgical treatment. The study's objective was to determine the treatment success and efficiency in sagittal, vertical, and transversal decompensation.
Methods:
This longitudinal, observational study enrolled 52 adult patients, who underwent orthodontic-surgical treatment. Incisor inclinations and positions as well as skeletal changes were assessed pre-treatment (T1), pre-surgical (T2), and post-surgical (T3) by lateral cephalograms and CBCT scans.
Results:
Incisor decompensation was insufficient in all three dimensions. Sagittal: treatment efficiency did not differ between class II and III patients. Vertical: patients with open bite demonstrated pre-surgical bite deepening and insufficient surgical reduction of the maxillomandibular plane angle. Transversal: Dental midline deviations were not adapted to the skeletal asymmetry so that menton deviations were not properly corrected.
Conclusions:
Incisor decompensation was not as successful as requested in all three dimensions and the treatment ideal was seldom achieved.
Clinical Relevance:
To improve the skeletal outcome, the orthodontist has to treat the patient with the desired surgical movements in mind and should critically evaluate the pre-surgical incisor decompensation before referral to the surgical team.
