机用镍钛器械ProTaper预备细小根管的临床分析  

Clinical analysis of fine root canal preparation with ProTaper rotary instruments

作　　者：庄最新[1] 任飞[2] 何振锋[3] 

机构地区：[1]广东省口腔医院南方医科大学附属口腔医院特诊中心,广东广州510280 [2]广东省口腔医院南方医科大学附属口腔医院儿童牙科,广东广州510280 [3]广东省职业病防治院牙科,广东广州510515

出　　处：《南方医科大学学报》2007年第12期1875-1877,共3页Journal of Southern Medical University

基　　金：广东省科学事业计划基金重点资助项目(2004B30901014);广东省医学科研基金立项课题(A2004127)

摘　　要：目的评价机用ProTaper预备细小根管的临床效果。方法用机用ProTaper和Glyde乳膏(含乙二胺四乙酸,EDTA)对92例患者的92颗患牙进行根管预备,并采用冷侧压充填,其中细小根管66颗、遗漏根管17颗、有近中颊根第二根管(MB2)的上颌第一磨牙6颗、有MB2的第二磨牙3颗。结果66颗患牙141个细小根管扩通率为95.74%,X线片显示根充物锥度、流畅度好;2个上颌第一磨牙腭根欠充,4个根管根尖1/3发生台阶。17个遗漏根管全部扩通。9个MB2根管5个扩通,4个根管未扩通。全部病例术中无器械折断。结论机用ProTaper和EDTA预备细小根管是有效的、安全的,但仍存在一定的局限性。Objective To evaluate the clinical effects of fine root canal preparation with rotary ProTaper. Methods Ninety-two teeth among 92 patients were treated with root canal therapy which root canals prepared by rotary ProTaper with Glyde gel （contains EDTA） and lateral condensation, including 66 teeth that 141 root canals were fine,17 teeth being root canal therapy and one or more than root canal were omitted,6 maxillary first molar containing second mesiobuccal canal （MB2）, 3 maxillary second molar MB2. Results One hundred and thirty five in 141 fine root canals among 66 teeth were successfully prepared by rotary ProTaper, the prepared successful ratio was 95.74%,X-ray showed that obturator had smooth taper. Two palatal root canals of maxillary first molar were underfilling, 4 root canals appeared ledge at apical one third. Seventeen omitted root canals were successfully prepared and obturated. Five in 9 MB2 were successfully prepared and obturated to root-apex, four in 9 were not to end. No instrument separated in all patients. Conclusion The preparation of fine root canals with rotary ProTaper and EDTA is an effective and safe and limtted. Nevertheless, the preventive importance of ledge and perforation should be emphasized.

关 键 词：根管预备 镍钛器械 细小根管 

分 类 号：R781.05[医药卫生—口腔医学]