Conclusion: The masticatory efficiency of 7~9 year-old children was negative correlated with caries status index, and filling of decayed teeth can significantly increase masticatory efficiency.
结论：7~9岁儿童咀嚼效能与患龋状况存在直线负相关关系，龋病充填治疗可显著增加患龋儿童的咀嚼效能。
Excessive abrasion on the occlusive surface of artificial teeth in removable denture may lead to lower masticatory efficiency after being used a long time.
可摘义齿在长期使用后，常由于人造牙咬合面过度磨耗导致咬合接触不良、咀嚼效能降低。
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