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时间:2020-04-12
《《超声骨刀应用于牙冠延长术的疗效观察》.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第45卷第6期温州医科大学学报VO1.45NO.620l5年6月JournalofWenzhouMedicalUniversityJun.2015床经鞫超声骨刀应用于牙冠延长术的疗效观察步中琦,顾海佳,姚斯琦。(1.海盐县口腔医院口腔科,浙江嘉兴314300;2.郑州大学口腔医学院,河南郑州450000)[摘要]目的:评价超声骨刀与高速球钻在牙冠延长手术中的应用效果。方法:选取60例67颗牙体缺损达龈下但又不超过龈下4.0nlm的具有保留价值的患牙,随机分成2组,一组采用超声骨刀组3o例34颗,另一组采用高速
2、涡轮球钻组3O例33颗,并分别记录2组病例术前、术后1周和8周、修复后6个月缺损最低处探诊深度(PD)、龈沟出血指数(SBI)、牙松动度(TM)等指标观察临床效果。结果:2组术后1周和8周、修复后6个月的PD和SBI与术前比较均明显改善,差异有统计学意义(均P<0.05);2组间比较,术后i周PD和SBI差异无统计学意义(均P>0.05),术后8周PD差异有统计学意义(P<0.05),SBI差异无统计学意义,修复后6个月的各项指标情况同术后8周。结论:2种术式对牙体缺损至龈下需冠延长患者均能取得较好疗效,但超
3、声骨刀组骨损失更少、牙周创面更小、修复更好。[关键词]超声骨刀;高速球钻:牙冠延长术;微创外科[中图分类号]R782.1[文献标志码]BDOI:10.3969~.issn.2095.9400.2015.06.014ObservationonthecurativeeffectofcrownlengtheningsurgerywithpiezosurgeryBUZhongqi,GUHai—jiaiYAOSiqiz.1.DepartmentofStomatology,StomatologicalHospitalof
4、HaiyanJiaxing,314300;2.SchoolofStomatology,ZhengzhouUniversity,Zhengzhou,450000objective:Toevaluatetheefectsofpiezousurgeryandhigh—speedburrincrownlengtheningsurgery.Methods:Sixtyseventeethin60exampleswithsubgingivaltoothdefectbutlessthan4InlTl,thatgottheva
5、luetopreservewereselected.Theexamplesaredividedintotwogroupsrandomly.Onegroupof34teethin30examplesusedpiezosurgery.Theothergroupof33teethin30examplesusedthehigh—speedburr.Thedefectofthelowestprobingdepth(PD),sulcularbleedingindex(SBI),toothmobility(TM)werer
6、ecordedbeforeopera—tion,atoneweekafteroperation,8weeksafteroperationand6monthsafteroperation.Results:Theafter-oper-ationPDandSBIofbothgrouphadsignificantchanges.Thediferencewasstatisticallysignificance(0.05),whilecomparisonbetweenthetwogroups,there’Snostati
7、sticalsignificanceinthediferenceofPDandSBIoneweekafteroperations(JD>0.05),andthereliessignificantdiferenceinPD8weeksafteroperations(0.05),butSBIhadnomarkeddiference,andallindexesafter6monthswerethesameastheseafter8weeks.Conclusion:Thesetwokindsofoperationsb
8、othhavegoodefectonpatientswhoneedcrownlengtheningsurgerytorecoverthesubgingivaltoothdefects.Atthesametime,piezosurgerycauseslessboneloss,smallerperiodontalwoundandthebetterrecovery.墨墨圜pieZOsurgery吣协my;
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