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...
