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目的：为解决牙间隙食物嵌塞提供最佳依据；方法：随机抽样门诊食物淤塞患者Zto例；结果：中重度牙周炎92例，占46％，牙齿过度磨耗，占21％，龋坏33例，占31．5％，不良修复31例，占15．5％，其它2例，占1％，随年龄增大；结论：①造成食物嵌塞最常见病因为中重度牙周炎，牙齿过度磨耗龋坏和不良修复体存在；②好发于后牙，磨牙区和双尖牙区；③随年龄增大而增加。
OBJECTIVE: To provide the best basis for solving the problem of food impaction in teeth gaps; Method: Random sampling of Zto patients in outpatients with food congestion; Results: 92 cases with moderate and severe periodontitis, accounting for 46%, excessive wear of teeth, 21%, spasticity 33 Cases, accounting for 31.5%, 31 cases of bad repair, accounting for 15.5%, other 2 cases, accounting for 1%, with age; Conclusion: 1 caused the most common food impaction due to moderate and severe periodontitis, teeth Excessive wear and tear and poor prosthesis exist; 2 occurs in posterior teeth, molar area and bicuspid area; 3 increases with age.