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Tooth contacts and stability before and after occlusal adjustment
The Journal of Prosthetic Dentistry
|September 1, 1979
Summary
Occlusal adjustment can achieve stability in most patients, but arches with missing teeth may require additional interventions. Stable tooth contacts involve cup-on-flat or cup-on-inclined plane interactions.
Area of Science:
- Dentistry
- Occlusion
- Dental Biomechanics
Background:
- Occlusal stability is crucial for long-term dental health.
- Understanding tooth contact dynamics post-adjustment informs treatment planning.
Purpose of the Study:
- To investigate the relationship between tooth contact characteristics and occlusal stability after occlusal adjustment.
- To identify factors influencing the longevity of occlusal adjustment outcomes.
Main Methods:
- Analysis of tooth contact number and type in 10 adult subjects before, immediately after, and 16 weeks post-occlusal adjustment.
- Clinical assessment for 'slide from centric relation' and evaluation of arch integrity.
Main Results:
- Six out of ten subjects maintained stability with consistent tooth contacts at 16 weeks.
- Four subjects experienced relapse, with three having missing teeth in one arch.
- Cup-on-flat and cup-on-inclined plane contacts demonstrated superior stability.
Conclusions:
- Occlusal adjustment alone may not ensure long-term stability in arches with missing teeth.
- Specific types of tooth contacts are more resilient to occlusal changes.
- Further research is needed to address stability in compromised dental arches.