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1、扩大根尖狭窄区治疗根尖周炎临床观察doi：10.3969/j.issn.1007-614x.2014.15.54摘要目的：探讨扩大根尖狭窄区治疗根尖周炎的临床疗效。方法：2010年1月-2013年10月收治根尖周炎患者80例，随机分成对照组和观察组，各40例，对照组采用传统根管治疗术进行治疗，观察组采用扩大根管狭窄区治疗术进行治疗。结果：观察组超充1例，术后持续牙龈肿胀1例，慢性牙龈炎1例。对照组欠充4例，超充6例，残余5例，术后持续牙龈肿胀7例，慢性牙龈炎8例。两组比较差异有统计学意义（P〈0・05）o经过6〜27个月的随访，观察组复发2例，复发率5.0%,对照
2、组复发11例，复发率27.5%,两组比较差异有统计学意义（P〈0・05）。结论：扩大根尖狭窄区治疗根尖周炎复发率低，临床疗效佳,值得推广。关键词扩大根尖狭窄区术根尖周炎才龈疼痛ClinicalobservationofexpandingtheapicalconstrictiontrealmentoftheperiapicalperiodontitisZhangWenyanDepartmentofStomatology,thePeople'sHospitalofLiuzhiSpecialDistriet（LiupanshuiCity,Guizhou）,553000A
3、bstractObjective:Toinvestigatetheclinicaleffectofexpandingtheapicalconstrict!ontrealmentoftheperiapicalperiodontitis.Methods：80patientswithperiapicalperiodontitiswereselectedfromJanuary2010toOctober2013.Theyweredividedintotheobservationgroupandthecontrolgroupwith40casesineach・Thecontr
4、olgroupweregiventhetraditionalrootcanaltherapy,whi1etheobservationgroupweretreatedwithexpandingtheapicalconstrictiontherapy.Results：Intheobservationgroup,1caseswasoverfilling,1casescontinuedgingivalswellingafteroperation,and1caseswaschronicgingivitis.Inthecontrolgroup,4casesweretindor
5、filling,6caseswereoverfilling,5caseswereresidual,7casescontinuedgingivalswellingafteroperation,and8caseswerechronicgingivitis.Thedifferencebetweentwogroupswasstatisticallysignificant(P〈0.05).After6~27monthsoffollow-up,2caseswererecurredintheobservationgroup,andtherecurrenceratewas5%.1
6、1caseswererecurredinthecontrolgroup,andtherecurreneeratewas27.5%.Thediffereneebetweentwogroupswasstatisticallysignificant(P<0.05)・Conclusion:Thetreatmentofexpandingtheapicalconstrictiononperiapicalperiodontitishadlowrecurrencerateandagoodclinicalefficacy,soitisworthpromoting.KeywordsE
7、xpandingtheapicalconstriction；Periapicalperiodontitis；Gumpain根尖周炎(Roottipperiarthritis)是牙周根尖周围组织的急性或慢性炎症［1］，主要表现为患牙疼痛剧烈，呈搏动性跳痛，面部红肿，局部淋巴结肿大、压痛。全身出现乏力、发热等，当急性根尖周炎时有的患者岀现脓肿破溃等。近年来，我们采用扩大根尖狭窄区治疗取得了良好的临床效果，现报告如下。资料与方法2010年1月-2013年10月收治根尖周炎患者80例，男49例(患牙56颗)，女31例(患牙41颗)；年龄22〜71岁,平均55.3岁。80例
8、患者随机分
