2022年11月第8卷第11期探讨金属预成冠对乳磨牙牙体缺损的修复效果褚静静褚静静,熊正慧熊正慧,孟姗孟姗,李虎李虎苏州口腔医院儿童口腔科,江苏苏州215000摘要摘要目的研究乳磨牙牙体缺损应用金属预成冠修复的治疗效果。方法选取苏州口腔医院2019年10月—2021年12月收治的106例乳磨牙牙体缺损患儿(106颗牙齿)为研究对象,按治疗方案不同分组,对照组(53例)行3M纳米树脂充填治疗,治疗组(53例)行金属预成冠修复治疗,对比两组治疗效果、并发症及咀嚼功能。结果治疗组治疗后1年成功率92.45%(49/53)高于对照组71.70%(38/53),差异有统计学意义(χ2=7.759,P<0.05);治疗组并发症发生率5.66%(3/53)低于对照组22.64%(12/53),差异有统计学意义(χ2=6.290,P<0.05);治疗组治疗后3个月、6个月咀嚼功能优于对照组,差异有统计学意义(t=3.700、7.932,P<0.05)。结论乳磨牙牙体缺损应用金属预成冠修复可促进疗效提高,并发症少,有利于咀嚼功能恢复。关键词关键词金属预成冠;乳磨牙牙体缺损;复合树脂中图分类号中图分类号R781781文献标志码文献标志码Adoi10.11966/j.issn.2095-994X.2022.08.11.14ExploringtheEffectofMetalPre-crownsontheRestorationofDentalDefectsinDeciduousMolarsCHUJingjing,XIONGZhenghui,MENGShan,LIHuDepartmentofPediatricDentistry,SuzhouStomatologicalHospital,Suzhou,JiangsuProvince,215000ChinaAbstractObjectiveTostudytheeffectofmetalpre-crownsinthetreatmentofmolardefect.Methods106childrenwithprimarymolartoothdefects(106teeth)whoweretreatedinSuzhouStomatologicalHospitalfromOctober2019toDecember2021wereselectedasthestudysub⁃jects.Thecontrolgroup(53cases)wastreatedwith3Mnano-resinfillingandthetreatmentgroup(53cases)wastreatedwithmetalpreformedcrownrestorationaccordingtodifferenttreatmentprotocols.Thetreatmentresults,complicationsandmasticatoryfunctionofthetwogroupswerecompared.ResultsThesuccessrateat1yearaftertreatmentwashigherinthetreatmentgroup92.45%(49/53)thaninthecontrolgroup71.70%(38/53),thedifferencewasstatisticallysignificant(χ2=7.759,P<0.05);thecomplicationrateof5.66%(3/53)inthetreatmentgroupwaslowerthanthatof22.64%(12/53)inthecontrolgroup,thedifferencewasstatisticallysignificant(χ2=6.290,P<0.05);themasticatory...