Turkish Journal of Orthodontics
Original Article
Evaluation of Root Resorption, Tooth Inclination and Changes in Supporting Bone in Class II Malocclusion Patients Treated with Forsus Appliance

Evaluation of Root Resorption, Tooth Inclination and Changes in Supporting Bone in Class II Malocclusion Patients Treated with Forsus Appliance

1.

Department of Orthodontics and Dentofacial Orthopedics, KLE Society’s Institute of Dental Sciences and Hospital, Bangalore, Karnataka, India

Turk J Orthod 2020; 33: 21-30
DOI: 10.5152/TurkJOrthod.2020.19037
Read: 192 Downloads: 81 Published: 14 January 2020

Objective: The aim of our study was to evaluate apical root resorption and changes in tooth inclinations, marginal bone height, and labio-lingual bone thickness at the mid-root and apical level in mandibular anterior teeth during the FORSUS treatment using cone beam computed tomography (CBCT).

Methods: CBCT scans of 16 subjects (8 males and 8 females) with Class II malocclusion (age group: 13–29 years) taken before and 6 months after the FORSUS treatment were evaluated for apical root resorption, tooth inclination, marginal bone height, and thickness of bone at the mid-root and apical level in mandibular anterior teeth.

Results: There was statistically significant root resorption of central incisors (0.39 mm) and canines (0.66 mm); a decrease in the angle of inclination for all teeth; an increase in the marginal bone measurement in labial (1.31 mm) and decrease in lingual (0.93 mm) aspect at the canine region; and an increase in bone width by 0.87 mm and 0.75 mm in central and lateral incisor regions, respectively, at the mid-root level lingually. At the apex level in the canine region, bone width increased by 1.4 mm labially, while it decreased by 2.18 mm lingually; it increased significantly for incisors in the lingual region.

Conclusion: The FORSUS appliance therapy causes clinically insignificant root resorption and bone changes, and clinically significant proclination of mandibular anteriors. The findings of the present study aid clinicians in proper case selection and reinforce the prevention of incisor proclination while using the FORSUS therapy to acheve better treatment results and stability.

Cite this article as: Rekhawat A, Durgekar SG, Reddy S. Evaluation of Root Resorption, Tooth Inclination and Changes in Supporting Bone in Class II Malocclusion Patients Treated with Forsus Appliance. Turk J Orthod 2020;  33(1): 21-30.

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