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- Title
Early treatment of anterior open bite: Comparison of the vertical and horizontal morphological changes induced by magnetic bite-blocks and adjusted rapid molar intruders.
- Authors
Albogha, Mhd Hassan; Takahashi, Ichiro; Sawan, Mhd Naser
- Abstract
Objective: This prospective clinical study aims to determine the differences between two treatment modalities for anterior open bite in growing patients. The treatment modalities involved the use of magnetic bite-blocks (IVIBBs) or rapid molar intruders (RMls) applied with posterk)r bite-blocks. Methods: Fifteen consecutive patients with a mean age of 11.2 (standard deviation [SD] = 1.6) years and a mean open bite of -3.9 mm were treated with MBBs. Another 15 consecutive patients with a mean age of 10.9 (SD = 1.8) years and a mean open bite of -3.8 mm were treated with RMls applied on biteblocks. Cephalometric radiographs were obtained before (T1) and immediately after appliance removal (T2). The treatments lasted four months, during which the appliances were cemented to the teeth. The morphological changes were measured in each group and compared using logistic regression analysis. Results: The MBB group exhibited significantly greater decreases in SNA angle, ANB angle, overjet, and maxillary incisor angle (p < 0.05). The IVIBBs induced greater effects on the maxilla and maxillary dentition. The IVIBBs restrained maxillary forward growth and retracted the maxillary incisors more effectively than did the RMls. Consequently, changes in the intermaxillary relationships and oveijets were more distinct in the MBB group. Conclusions: The anteroposterior differences between the appliances suggest that MBBs should be preferred for the treatment of patients with Class 11 open bites and maxillary incisor protrusions.
- Subjects
INCISORS; TEETH abnormalities; EARLY medical intervention; CEPHALOMETRY; MAXILLARY sinus; DENTAL therapeutics; DENTAL care; DENTITION; SURGERY; THERAPEUTICS
- Publication
Korean Journal of Orthodontics, 2015, Vol 45, Issue 1, p38
- ISSN
2234-7518
- Publication type
Article
- DOI
10.4041/kjod.2015.45.1.38