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A comparative study of masticatory efficiency and mandibular movement pattern among patients with CD, COD and IOD
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF STOMATOLOGY
- Issue:
- 3
- DOI:
- 10.3760/j.issn:1002-0098.2003.03.012
- Key Word:
- 总义齿;覆盖义齿;种植体;咀嚼效率
Abstract： 目的比较总义齿(complete denture,CD)、覆盖义齿(complete overdenture,COD)和种植覆盖义齿(implant-supported overdenture,IOD)修复后患者的咀嚼效率和下颌运动轨迹的差异.方法分别选取CD、COD和IOD修复后患者各14名,在义齿正常戴用半年后测量患者的咀嚼效率和下颌运动轨迹.对下颌运动轨迹从规则程度、末端集中性、额状面的分型和咀嚼运动中的珺接触滑动4个方面进行评价,测试用食物为杏仁和小枣.结果IOD组患者咀嚼枣和杏仁的效率均显著高于CD组(P＜O.01);COD组患者咀嚼杏仁的效率显著高于CD组(P＜0.01).COD组患者咀嚼枣的效率高于CD组,且IOD组患者咀嚼枣和杏仁的效率高于COD组,但其间差异无显著性.IOD组患者下颌运动轨迹的规则程度显著优于CD组(P＜0.05),末端轨迹集中性也显著优于CD组(P＜0.01).结论IOD和COD修复有利于提高无牙颌患者或口内只保留个别残根患者的咀嚼效率.IOD修复患者较CD修复患者具有更加规则的下颌运动型.
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