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Structural equation modeling for alteration of occlusal plane inclination
Yuko Shigeta1, Takumi Ogawa1, Yoshiharu Nakamura1
1Department of Fixed Prosthodontics, School of Dental Medicine, Tsurumi University, Yokohama, Japan.
Journal of Prosthodontic Research
|June 6, 2015
Summary
Aging alters occlusal plane inclination, primarily due to changes in mandibular morphology and tooth loss. This study investigated these age-related changes in adult patients.
Area of Science:
- Dentistry
- Orthodontics
- Gerontology
Background:
- Occlusal plane inclination is crucial for normal biting and chewing function.
- Alterations in the occlusal plane can arise from various factors.
- Understanding these changes is vital for dental health, especially with aging populations.
Purpose of the Study:
- To examine variations in occlusal plane inclination among adult patients.
- To identify factors contributing to occlusal plane inclination changes with age.
Main Methods:
- 143 adult patients were included in the study.
- Cephalometric imaging and intra-oral findings were analyzed.
- Factor analysis and structural equation modeling were employed to assess influencing factors.
Main Results:
- The Camper-occlusal plane angle (COA) showed a wide range in all patients.
- In patients without missing teeth, COA values were less varied.
- Structural analysis indicated a counter-clockwise shift in the occlusal plane with aging.
Conclusions:
- Mandibular morphology changes and tooth loss significantly influence occlusal plane inclination in aging adults.
- The study observed variations in occlusal plane inclination and identified age-related influencing factors.
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