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Updated: Oct 3, 2026

Evaluating the Function of the Foot Core System in the Elderly
Published on: March 11, 2022
[Investigation on the positions and relevant factors of wedge-shaped defects in the elderly]
Objective:
To investigate the position and relevant factors of wedge-shaped defects in elderly.
Methods:
462 elderly were examined.
Results:
The occurrence rate of wedge-shaped defects was 99.1%, all had at least labial or buccal defects, with premolars the most frequent. However, 15.2% of them had lingual defects, most frequently in molars. No significant association were found between wedge-shaped defect position and tooth brushing or erosion factors in the group. In tooth with defect, the occlusal surface wear was more severe, the denture abutment teeth were more in number, and the functional mobility was increased; in teeth with lingual defect, these phenomena were more obvious.
Conclusion:
The wedgeshaped defects, besides tooth brushing and erosion factors, occlusal force and its accumulation plays a role as well, lingual lesions are more related to traumatic occlusal force.