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Updated: Jul 9, 2026
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Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
Dentoalveolar open bite treatment with spur appliances
Philipp Meyer-Marcotty1, Jutta Hartmann, Angelika Stellzig-Eisenhauer
1Department of Orthodontics, Julius Maximilian University, Würzburg, Germany. Meyer_P1@klinik.uni-wuerzburg.de
Summary
Palatal spurs effectively elongated alveolar processes in patients with anterior open bite caused by tongue dysfunction. This treatment improved overbite and corrected incisor positioning, indicating a positive change in tongue behavior.
Area of Science:
- Orthodontics
- Craniofacial Biology
- Dentofacial Orthopedics
Background:
- Anterior open bite is often associated with tongue dysfunction.
- Understanding the isolated effects of orthodontic appliances is crucial for treatment efficacy.
Purpose of the Study:
- To investigate the isolated effect of palatal spurs on the craniofacial and dentoalveolar complex.
- To analyze treatment outcomes in patients with anterior open bite due to tongue dysfunction.
Main Methods:
- Prospective, longitudinally-controlled study involving fifteen patients with anterior open bite.
- Treatment with a fixed palatal spur appliance for a mean duration of 9.13 months.
- Cephalometric analysis using lateral cephalograms before (T1) and after (T2) spur therapy.
Main Results:
- Significant elongation of maxillary (1.61 mm) and mandibular (1.36 mm) alveolar processes.
- Highly significant mean increase in overbite (1.95 mm).
- Significant uprighting of lower incisors and increased overjet observed post-therapy.
Conclusions:
- Palatal spurs can achieve elongation of alveolar process heights in patients with anterior open bite due to tongue dysfunction.
- The treatment appears to induce changes in tongue neuromuscular behavior, correcting the dysfunction.
- Spur therapy effectively increases overbite and improves dentoalveolar relationships.
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