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Tooth-anchored vs. bone-anchored maxillary expansion: a randomized controlled trial comparing dental and skeletal effects Open Access
- Other title
- Type of item
- Degree grantor
University of Alberta
- Author or creator
- Supervisor and department
Major, Paul (Dentistry)
- Examining committee member and department
Carey, Jason (Mechanical Engineering)
Heo, Giseon (Dentistry)
Toogood, Roger (Mechanical Engineering)
Flores, Carlos (Dentistry)
Medical Sciences – Orthodontics
- Date accepted
- Graduation date
Master of Science
- Degree level
Aim: To investigate the differences, if any, between tooth-anchored maxillary expansion (TME) and bone-anchored maxillary expansion (BME) in terms of the produced longitudinal dentoskeletal changes -and the stability of these changes- in adolescents with maxillary constriction.
Methods: Sixty two suitable subjects were randomly assigned to one of three groups: (1) TME group; (2) BME group; (3) Control group. Lateral cephalograms, posteroanterior cephalograms, and dental casts were obtained at baseline and at three post-expansion time points. Records from all time points were analyzed.
Results: There were no clinically significant differences between the TME and BME groups at any data collection time point. Both showed initial increases in dentoskeletal widths and dental tipping which were subsequently largely lost to relapse in the absence of retention.
Conclusion: There are no clinically significant differences in the dentoskeletal changes -or the stability of these changes- produced by TME and BME in adolescents with maxillary constriction.
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