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Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
What can be achieved with removable orthodontic appliances?
Rainer-Reginald Miethke1, Claudia Wronski
1Department of Orthodontics, Dentofacial Orthopedics and Pedodontics, Charité Centrum für Zahn-, Mund- und Kieferheilkunde, Charité - Universitätsmedizin Berlin, Berlin, Germany. rainer-r.miethke@charite.de
Summary
Removable orthodontic appliances effectively correct malocclusions in most patients, with 95% showing improvement. Success depends on correct case selection and high clinician expertise for optimal orthodontic outcomes.
Area of Science:
- Orthodontics
- Dental Technology
Background:
- Removable orthodontic appliances are widely used.
- Their effectiveness in treating malocclusions requires further evaluation.
Purpose of the Study:
- To assess the efficacy of treatments solely using removable orthodontic appliances.
- To determine the success rate of malocclusion correction with these devices.
Main Methods:
- A cohort of 276 patients (mean age 9.50 years) with various malocclusions were treated exclusively with removable appliances.
- The Peer Assessment Rating (PAR) Index was used to measure treatment outcomes on pre- and post-treatment dental casts.
- Standard statistical analyses were performed to evaluate changes in PAR scores.
Main Results:
- The mean PAR Index score decreased from 19.5 pre-treatment to 5.9 post-treatment, indicating significant improvement.
- Approximately 95% of patients showed improvement (79% improved, 16% greatly improved) according to the PAR nomogram.
- The overall mean improvement was 14 PAR points, representing a 68% reduction in malocclusion severity.
Conclusions:
- Removable orthodontic appliances can successfully correct malocclusions when used appropriately.
- Treatment success is contingent upon accurate diagnosis, correct case selection, and high levels of clinician expertise.
