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A criterion for the selection of artificial posterior teeth
K Yoshida1, H Okane, T Nagasawa
1Department of Removable Prosthodontics, Hiroshima University, School of Dentistry, Japan.
Journal of Oral Rehabilitation
|July 1, 1988
Summary
Choosing the right artificial posterior teeth is crucial for edentulous patients. Anatomic and semi-anatomic teeth offer better masticatory performance than non-anatomic options, with lateral component values indicating optimal selection criteria.
Area of Science:
- Dentistry
- Biomechanical Engineering
- Prosthodontics
Background:
- Edentulism significantly impacts masticatory function and quality of life.
- Selecting appropriate posterior artificial teeth is critical for denture success.
- Current selection criteria for artificial teeth may not fully optimize masticatory performance.
Purpose of the Study:
- To evaluate mandibular movement and masticatory performance in edentulous patients using dentures with different posterior artificial tooth occlusal schemes.
- To determine optimal criteria for selecting posterior artificial teeth for improved mastication.
Main Methods:
- Experimental dentures with non-anatomic, semi-anatomic, and anatomic posterior artificial teeth were used.
- Mandibular movement and masticatory performance were assessed in edentulous patients.
- The influence of residual ridge condition and horizontal condylar guidance inclination was considered.
Main Results:
- Masticatory performance was significantly lower with non-anatomic posterior teeth compared to semi-anatomic or anatomic teeth.
- The lateral component of the masticatory cycle showed a strong correlation with cusp inclination and masticatory performance.
- These findings were consistent across varying residual ridge conditions and condylar guidance inclinations.
Conclusions:
- The type of posterior artificial teeth significantly affects masticatory performance in edentulous patients.
- Anatomic and semi-anatomic occlusal schemes are superior to non-anatomic schemes for mastication.
- The lateral component of the masticatory cycle, influenced by cusp inclination, serves as a valuable criterion for selecting posterior artificial teeth.