Skeletal, Dental, and Soft Tissue Changes after Applying Active Skeletonized Sutural Distractor (ASSD) for Class III Malocclusion Patients

Background: Nonsurgical treatment of Class III malocclusion may reduce the chances for orthognathic surgery in the future. This study aimed to determine the post-treatment skeletal, dental and soft tissue changes in the anteroposterior plane applying active skeletonized sutural distractor (ASSD) in...

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Bibliographic Details
Published in:Applied sciences 2022-02, Vol.12 (3), p.1233
Main Authors: Hassan, Rozita, Mohamed, Wael Ahmed Bayomy, Ab. Rahman, Norma, Ab. Rahman, Shaifulizan, Saddki, Norkhafizah
Format: Article
Language:English
Subjects:
active skeletonized sutural distractor (ASSD)
Age
cephalometric analysis
Correlation coefficient
Correlation coefficients
Dental materials
Jaw
Lasers
Mandible
Molars
Orthopedics
Patients
Scanners
Schools
skeletal changes
Soft tissues
Software
Statistical analysis
Tissues
Transplants & implants
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Summary:Background: Nonsurgical treatment of Class III malocclusion may reduce the chances for orthognathic surgery in the future. This study aimed to determine the post-treatment skeletal, dental and soft tissue changes in the anteroposterior plane applying active skeletonized sutural distractor (ASSD) in late adolescent Class III malocclusion patients. Materials and Methods: After screening 13,500 students from 18 secondary schools, a sample of 26 subjects was recruited for this study, with a mean age of 15(±1.4) years after considering the inclusion and exclusion criteria. ASSD appliances were inserted into patients, and lateral cephalometric x-rays were taken for pre- and post-treatment analysis. Dental casts of the patients were also taken and scanned using a 3D laser scanner for comparisons. Results: The intraclass correlation coefficients (ICC) for inter-examiner were 0.87 to 0.99 and 0.96 to 0.99 for lateral cephalometric and dental cast measurements, respectively. The difference in pre- and post-treatment of cephalometric measurements of the mandible showed statistically significant changes for mandibular plane angle (p < 0.001) and SNB angle (p = 0.029). The dental cast measurements showed statistically significant changes of inter-molars width (p < 0.001) as well as palatal (p = 0.002). Conclusions: The results showed statistically significant improvement in skeletal, dental, and soft tissue changes after treatment applying ASSD for Class III malocclusion patients.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12031233