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Occlusal interference during mastication can cause pathological tooth mobility
S Ishigaki1, T Kurozumi, E Morishige
1Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan. ishigaki@dent.osaka-u.ac.jp
Journal of Periodontal Research
|May 9, 2006
Summary
Deviations in chewing patterns significantly increase tooth mobility, suggesting that functional occlusal evaluation during mastication is crucial for assessing periodontal health. This highlights the need to go beyond traditional occlusal assessments.
Area of Science:
- Dentistry
- Periodontology
- Biomechanics
Background:
- Limited evidence links tooth mobility to nonworking occlusal contacts.
- Current occlusal evaluations primarily focus on premature and nonworking contacts during tapping and lateral movements.
- The study hypothesizes that occlusal contact during mastication can be traumatic to periodontal tissues.
Purpose of the Study:
- To investigate the relationship between chewing patterns and periodontal tissue status.
- To clarify how occlusal contacts during mastication affect tooth mobility.
Main Methods:
- 73 adults (20-29 years) with complete dentition and no history of orthodontic treatment or periodontal disease were studied.
- Chewing patterns were classified into three groups using the Masticatory Deviation Index (MDI).
- Tooth mobility was assessed using Periotest.
Main Results:
- Chewing movements deviating from normal patterns were associated with increased mobility in specific teeth.
- The Masticatory Deviation Index correlated with increased tooth mobility.
Conclusions:
- A significant relationship exists between chewing movements and tooth mobility.
- Functional occlusal evaluation during mastication is essential for periodontal tissue assessment.
- Traditional occlusal assessments may be insufficient; functional evaluation offers clinical utility.
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