【摘要】 目的：探讨金属预成冠(Preformed metal crown，PMC)修复技术在儿童龋齿治疗中的效果，以及其对患儿口腔功能、牙周情况和美观度的影响。方法：选取2020年3月-2022年3月笔者医院收治的100例儿童龋齿患者，随机分为研究组(PMC修复)和对照组(树脂填充修复)，每组50例。分别于治疗前和治疗后6个月，对两组患者口腔功能、咀嚼效率、咬合力、牙周情况、美观度及龈沟液中碱性磷酸酶(Alkaline phosphatase，ALP)及白细胞介素1β(Interleukin-1β，IL-1β)进行比较，并记录随访期间并发症情况。结果：治疗后，两组均有所改善，研究组固定功能、咀嚼功能、发音功能及舒适度得分、咀嚼效率与咬合力均显著高于对照组(均P<0.05)，龈缘至袋底距离(Probing depth，PD)、菌斑指数(Plaque index，PLI)、牙龈指数(Gingival index，GI)、红色美学指数(Pink esthetic score，PES)与白色美学指数(White esthetic score，WES)、IL-1β、ALP水平均低于对照组(均P<0.05)。两组并发症发生率比较，差异无统计学意义(P>0.05)。结论：在儿童龋齿治疗中，PMC修复能显著提升口腔功能、咀嚼效率和咬合力，改善牙周健康，并降低炎症水平，但在美观性方面不如树脂修复。临床应用中需结合患儿个体情况和家长需求，综合考虑功能性和美观性的平衡。更多还原

【Abstract】 Objective To investigate the effect of metal pre formed crown restoration technology in the treatment of dental caries in children,and its influence on oral function,periodontal condition and aesthetics in children.Methods A total of 100 children with dental caries admitted between March 2020 and March 2022 were randomly divided into a study group (PMC restoration,n=50) and a control group (resin filling restoration,n=50).Oral function,chewing efficiency,bite force,periodontal status,aesthetic outcomes (PES) and white esthetic score (WES),and levels of interleukin-1β (IL-1β) and alkaline phosphatase (ALP) in gingival crevicular fluid were evaluated before treatment and 6 months post-treatment.Complications during follow-up were recorded.Results Both groups showed post-treatment improvements.The study group demonstrated significantly higher scores in oral fixation,masticatory function,speech function,comfort level,chewing efficiency,and bite force compared to the control group (all P<0.05).Conversely,periodontal parameters-probing depth (PD),plaque index (PLI),gingival index (GI)-and inflammatory markers (IL-1β,ALP) were significantly lower in the study group (all P<0.05).However,the control group exhibited superior aesthetic outcomes (PES and WES scores,all P<0.05).No significant difference in complication rates was observed between the two groups (χ~2=3.310,P=0.069).Conclusion PMC restoration significantly enhances oral function,masticatory efficiency,bite force,and periodontal health while reducing inflammatory responses in pediatric caries treatment.However,resin restoration remains superior in aesthetic outcomes.Clinical decisions should balance functional and aesthetic considerations based on individual patient needs and parental preferences.更多还原