Format

Send to

Choose Destination
Am J Orthod Dentofacial Orthop. 2017 Jun;151(6):1139-1147. doi: 10.1016/j.ajodo.2016.11.023.

Relationship between molar occlusion and masticatory movement in lateral deviation of the mandible.

Author information

1
Department of Orthodontics, School of Dentistry, Nihon University, Matsudo, Chiba, Japan. Electronic address: yuji.suzuki170704@gmail.com.
2
Department of Orthodontics, School of Dentistry, Nihon University, Matsudo, Chiba, Japan.
3
Department of Maxillofacial Orthodontics, School of Dentistry, Nihon University, Matsudo, Chiba, Japan.

Abstract

INTRODUCTION:

The relationship between molar occlusion and chewing patterns was examined in subjects with laterally deviated mandibles.

METHODS:

Twenty-three patients with mandibular deviation from the midline (4 mm or more) and skeletal Class I (0° ≤ANB ≤4°) were divided into 2 groups: normal bite and crossbite. The chewing pattern was classified as normal, reversed, or crossover.

RESULTS:

The normal bite group had a normal chewing pattern on the affected side 100% of the time and a reversed chewing pattern on the affected and unaffected sides 0% and 7.2% of the time, respectively. Additionally, the normal bite group showed no evidence of a crossover chewing pattern and also had significantly less axial inclination of the mandibular teeth on the affected side compared with the crossbite group; lingual inclination was also evident. The crossbite group had a normal chewing pattern on the affected and unaffected sides 0% and 55.6% of the time, respectively, and reversed and crossover chewing patterns on the affected side 55.6% and 44.4% of the time, respectively.

CONCLUSIONS:

A normal chewing pattern tends to result in lingual axial inclination of the mandibular molars on the affected side, as well as a more consistent chewing pattern.

PMID:
28554459
DOI:
10.1016/j.ajodo.2016.11.023
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center