File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
  • Find via Find It@HKUL
Supplementary

Article: Comparative study of cutting efficiency of three instrumentation techniques in C-shaped canals

TitleComparative study of cutting efficiency of three instrumentation techniques in C-shaped canals
三種方法預備C形根管對根管壁切削的比較
Authors
KeywordsC-shaped canal (C形根管)
Instrumentation (根管預備)
Bramante technique (Bramante技術)
Issue Date2009
PublisherDi Si Jun Yi Da Xue Kou Qiang Yi Xue Yuan (第四軍醫大學口腔醫學院).
Citation
Journal of Practical Stomatology, 2009, v. 25 n. 1, p. 99-102 How to Cite?
實用口腔醫學雜誌, 2009, v. 25 n. 1, p. 99-102 How to Cite?
AbstractObjective: To investigate the cutting efficiency of three instrumentation techniques in the C-shaped canals.Methods: Sixty extracted mandibular second molars,which contained C-shaped canals,were selected and cross-sectioned at 2,5,8 mm from the apex by using a muffle system as described by Bramante.The teeth were randomly divided into three groups,instrumented by three different techniques respectively.The digital images of the canal cross-sections pre-and post-instrumentation were taken to evaluate the amount of dentin removed,the position and the change of minimal canal wall.Perforation were recorded.Data were analyzed by using ANOVA.Results: The cutting efficiency on the weak wall of C-shaped canals by using three instrumentation techniques,was equivalent.The frequency of minimal walls appeared in lingual sides was much more than the others.There were three perforations in manual stainless steel K-file groups.Conclusion:The lingual wall of C-shaped canals was thinner commonly than other aspects,which should be paid more attention during canal instrumentation.
目的:評價3種常用根管預備方法預備C形根管時對根管壁薄弱區的切削程度,為臨床治療提供參考。方法:收集臨床拔除的具有C形根管的下頜第二恒磨牙60顆,應用改良Bramante技術,于距根尖2、5、8mm處將牙根橫斷。將樣本隨機分為3組,使用不同預備器械和方法進行預備。比較預備前后根管橫截面形態的數碼圖像,對3種不同方法的切削程度進行評價。評價指標包括牙本質切削面積、根管壁最小厚度出現部位及最小值變化和根管壁側穿發生情況。數據進行方差分析。結果:C形根管壁的薄弱區多出現在舌側,3種預備方法對C形根管壁薄弱區的切削沒有顯著差異。手用不銹鋼器械組中發生3例側穿。結論:在C形根管預備時應特別注意避免在頰舌側薄弱區的過度切削,以免發生穿孔。
Persistent Identifierhttp://hdl.handle.net/10722/207965
ISSN

 

DC FieldValueLanguage
dc.contributor.authorZhou, X-
dc.contributor.authorZhang, C-
dc.contributor.authorYin, X-
dc.contributor.authorMa, Q-
dc.date.accessioned2015-01-28T06:12:57Z-
dc.date.available2015-01-28T06:12:57Z-
dc.date.issued2009-
dc.identifier.citationJournal of Practical Stomatology, 2009, v. 25 n. 1, p. 99-102-
dc.identifier.citation實用口腔醫學雜誌, 2009, v. 25 n. 1, p. 99-102-
dc.identifier.issn1001-3733-
dc.identifier.urihttp://hdl.handle.net/10722/207965-
dc.description.abstractObjective: To investigate the cutting efficiency of three instrumentation techniques in the C-shaped canals.Methods: Sixty extracted mandibular second molars,which contained C-shaped canals,were selected and cross-sectioned at 2,5,8 mm from the apex by using a muffle system as described by Bramante.The teeth were randomly divided into three groups,instrumented by three different techniques respectively.The digital images of the canal cross-sections pre-and post-instrumentation were taken to evaluate the amount of dentin removed,the position and the change of minimal canal wall.Perforation were recorded.Data were analyzed by using ANOVA.Results: The cutting efficiency on the weak wall of C-shaped canals by using three instrumentation techniques,was equivalent.The frequency of minimal walls appeared in lingual sides was much more than the others.There were three perforations in manual stainless steel K-file groups.Conclusion:The lingual wall of C-shaped canals was thinner commonly than other aspects,which should be paid more attention during canal instrumentation.-
dc.description.abstract目的:評價3種常用根管預備方法預備C形根管時對根管壁薄弱區的切削程度,為臨床治療提供參考。方法:收集臨床拔除的具有C形根管的下頜第二恒磨牙60顆,應用改良Bramante技術,于距根尖2、5、8mm處將牙根橫斷。將樣本隨機分為3組,使用不同預備器械和方法進行預備。比較預備前后根管橫截面形態的數碼圖像,對3種不同方法的切削程度進行評價。評價指標包括牙本質切削面積、根管壁最小厚度出現部位及最小值變化和根管壁側穿發生情況。數據進行方差分析。結果:C形根管壁的薄弱區多出現在舌側,3種預備方法對C形根管壁薄弱區的切削沒有顯著差異。手用不銹鋼器械組中發生3例側穿。結論:在C形根管預備時應特別注意避免在頰舌側薄弱區的過度切削,以免發生穿孔。-
dc.languagechi-
dc.publisherDi Si Jun Yi Da Xue Kou Qiang Yi Xue Yuan (第四軍醫大學口腔醫學院).-
dc.relation.ispartofJournal of Practical Stomatology-
dc.relation.ispartof實用口腔醫學雜誌-
dc.subjectC-shaped canal (C形根管)-
dc.subjectInstrumentation (根管預備)-
dc.subjectBramante technique (Bramante技術)-
dc.titleComparative study of cutting efficiency of three instrumentation techniques in C-shaped canalsen_US
dc.title三種方法預備C形根管對根管壁切削的比較-
dc.typeArticleen_US
dc.identifier.emailZhang, C: zhangcf@hku.hk-
dc.identifier.hkuros171070-
dc.identifier.volume25-
dc.identifier.issue1-
dc.identifier.spage99-
dc.identifier.epage102-
dc.publisher.placeChina (中國)-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats