暨南大学学报（自然科学与医学版）
暨南大學學報（自然科學與醫學版）
기남대학학보（자연과학여의학판）
JOURNAL OF JINAN UNIVERSITY（NATURAL SCIENCE & MEDICINE EDITION）
2015年
1期
56-61
,共6页
石英纤维桩%漏斗状根管%粘接强度%微推出实验
石英纖維樁%漏鬥狀根管%粘接彊度%微推齣實驗
석영섬유장%루두상근관%점접강도%미추출실험
quartz fiber post%flared roots%bond strength%thin-slice push-out test
目的：对比同种树脂直接法与间接法制成的石英纤维桩修复漏斗状根管在不同截面上纤维桩与根管牙本质间微推出的粘结强度，为临床应用提供依据．方法：收集大小相近完整的上中切牙22颗，随机分为2组，预备成漏斗状根管，一组用直接法完成石英纤维树脂桩修复，另一组用间接法完成石英纤维树脂桩修复．两组中各随机抽取1颗制成切片后，用扫描电镜观察试件桩与牙本质间图像；其余用于微推出实验，制成切片后用微推出方法检测两种方法粘结强度的大小，分析桩的类型和牙根不同部位对于纤维桩与根管牙本质微推出粘结强度的影响．结果：直接法与间接法制成石英纤维桩修复漏斗状根管时，桩的类型及牙根不同部位这两个因素对纤维桩与根管牙本质间微推出粘接强度均有显著性影响（P ＜0.05），两个因素之间交互作用对粘接强度影响显著（P ＜0.05）．结论：间接法制成石英纤维桩修复单根漏斗状根管中根颈部、根中部、根尖部的纤维桩与根管牙本质间微推出粘接强度均分别显著高于直接法；间接法组：根颈部的粘接强度显著高于根中部，根中部的粘接强度显著高于根尖部；直接法组：根颈部的粘接强度显著高于根中部与根尖部，根中部与根尖部的粘接强度没有显著差异．
目的：對比同種樹脂直接法與間接法製成的石英纖維樁脩複漏鬥狀根管在不同截麵上纖維樁與根管牙本質間微推齣的粘結彊度，為臨床應用提供依據．方法：收集大小相近完整的上中切牙22顆，隨機分為2組，預備成漏鬥狀根管，一組用直接法完成石英纖維樹脂樁脩複，另一組用間接法完成石英纖維樹脂樁脩複．兩組中各隨機抽取1顆製成切片後，用掃描電鏡觀察試件樁與牙本質間圖像；其餘用于微推齣實驗，製成切片後用微推齣方法檢測兩種方法粘結彊度的大小，分析樁的類型和牙根不同部位對于纖維樁與根管牙本質微推齣粘結彊度的影響．結果：直接法與間接法製成石英纖維樁脩複漏鬥狀根管時，樁的類型及牙根不同部位這兩箇因素對纖維樁與根管牙本質間微推齣粘接彊度均有顯著性影響（P ＜0.05），兩箇因素之間交互作用對粘接彊度影響顯著（P ＜0.05）．結論：間接法製成石英纖維樁脩複單根漏鬥狀根管中根頸部、根中部、根尖部的纖維樁與根管牙本質間微推齣粘接彊度均分彆顯著高于直接法；間接法組：根頸部的粘接彊度顯著高于根中部，根中部的粘接彊度顯著高于根尖部；直接法組：根頸部的粘接彊度顯著高于根中部與根尖部，根中部與根尖部的粘接彊度沒有顯著差異．
목적：대비동충수지직접법여간접법제성적석영섬유장수복루두상근관재불동절면상섬유장여근관아본질간미추출적점결강도，위림상응용제공의거．방법：수집대소상근완정적상중절아22과，수궤분위2조，예비성루두상근관，일조용직접법완성석영섬유수지장수복，령일조용간접법완성석영섬유수지장수복．량조중각수궤추취1과제성절편후，용소묘전경관찰시건장여아본질간도상；기여용우미추출실험，제성절편후용미추출방법검측량충방법점결강도적대소，분석장적류형화아근불동부위대우섬유장여근관아본질미추출점결강도적영향．결과：직접법여간접법제성석영섬유장수복루두상근관시，장적류형급아근불동부위저량개인소대섬유장여근관아본질간미추출점접강도균유현저성영향（P ＜0.05），량개인소지간교호작용대점접강도영향현저（P ＜0.05）．결론：간접법제성석영섬유장수복단근루두상근관중근경부、근중부、근첨부적섬유장여근관아본질간미추출점접강도균분별현저고우직접법；간접법조：근경부적점접강도현저고우근중부，근중부적점접강도현저고우근첨부；직접법조：근경부적점접강도현저고우근중부여근첨부，근중부여근첨부적점접강도몰유현저차이．
Aim:Comparing bond strength of indirect legal system into quartz fiber post nuclear and quartz fiber post nuclear directly on the different cross section using the same resin post,providing the basis for clinical application.Methods:Collect for the similar size and complete 22 middle teeth,ran-domly divided into 2 groups,preparing into funnel root canal.A group of direct legal system into quartz fi-ber post nuclear,other group of indirect legal system into quartz fiber post nuclear.Randomly selected 1 teeth in each group,using scanning electron microscope (sem)to observe the microstructure.The rest for thin-slice push-out test,using chip launch detection to detect bond strength,analysis of the influence of bond strength of nuclear type pile and different positions of the root.Results:Bond strength of indirect legal system into quartz fiber post and quartz fiber post nuclear directly on the different cross section using the same resin post all have significant impact(P <0.05),interaction between the two factors have a sig-nificant influence on bonding strength(P <0.05).Conclusion:Indirect legal system into quartz fiber post <br> for funnel root canal bond strength is better than direct.The indirect method group:Central root neck sig-nificantly higher bonding strength of root,the bonding strength was significantly higher than in central root apex;The direct method group:Central root neck significantly higher bonding strength of root and root,root in the central and the apex of the bonding strength did not differ significantly.
