CAJ | 학술논문

背景：临床上需要进行根管治疗的牙齿多数有较大牙体缺损，甚至是残冠、残根，而且永久性修复体需要在治疗后一段时间才能完成，故根管治疗后冠修复前暂时封固对冠方微渗漏的影响已经被临床医生所重视。 　　目的：评价不同暂封材料对根管治疗后牙冠方微渗漏的影响，探讨根管治疗后牙冠方微渗漏发生情况及与时间的关系。 　　方法：收集人离体牙126颗，其中120颗为实验组，3颗为阳性对照组，3颗为阴性对照组。实验组和阳性对照组牙齿进行根管治疗，而后采用牙齿牙胶尖和 AH-plus 根管糊剂冷侧压充填实验组根管，随机均分为4组，分别以Coltosol、Caviton、ZOE、Ceivitron暂封材料暂封根管治疗后的牙冠方，阳性对照组不充填根管，阴性对照组牙齿保持完整。分别于暂封1，2，4周观察各组样本染料微渗漏情况。 　　结果与结论：阴性对照组未见染料渗入根管，阳性对照组可见整个根管被染色。暂封1周时，Coltosol 组、Caviton组微渗漏长度短于ZOE组和Ceivitron组(P<0.05)；暂封2周时，Coltosol组微渗漏长度短于Ceivitron组(P<0.05)；暂封4周时，Coltosol组、Caviton组和ZOE组微渗漏长度短于Ceivitron组(P<0.05)。随暂封时间的延长，4种材料组微渗漏长度均增加，组内不同时间点微渗漏长度差异均有显著性意义(P<0.05)。结果表明Coltosol和Caviton材料的暂封效果较好，其次为ZOE，Ceivitron最差，Coltosol和Caviton用于暂封的适宜时间为一二周，ZOE和Ceivitron为1周。
배경：림상상수요진행근관치료적아치다수유교대아체결손，심지시잔관、잔근，이차영구성수복체수요재치료후일단시간재능완성，고근관치료후관수복전잠시봉고대관방미삼루적영향이경피림상의생소중시。 　　목적：평개불동잠봉재료대근관치료후아관방미삼루적영향，탐토근관치료후아관방미삼루발생정황급여시간적관계。 　　방법：수집인리체아126과，기중120과위실험조，3과위양성대조조，3과위음성대조조。실험조화양성대조조아치진행근관치료，이후채용아치아효첨화 AH-plus 근관호제랭측압충전실험조근관，수궤균분위4조，분별이Coltosol、Caviton、ZOE、Ceivitron잠봉재료잠봉근관치료후적아관방，양성대조조불충전근관，음성대조조아치보지완정。분별우잠봉1，2，4주관찰각조양본염료미삼루정황。 　　결과여결론：음성대조조미견염료삼입근관，양성대조조가견정개근관피염색。잠봉1주시，Coltosol 조、Caviton조미삼루장도단우ZOE조화Ceivitron조(P<0.05)；잠봉2주시，Coltosol조미삼루장도단우Ceivitron조(P<0.05)；잠봉4주시，Coltosol조、Caviton조화ZOE조미삼루장도단우Ceivitron조(P<0.05)。수잠봉시간적연장，4충재료조미삼루장도균증가，조내불동시간점미삼루장도차이균유현저성의의(P<0.05)。결과표명Coltosol화Caviton재료적잠봉효과교호，기차위ZOE，Ceivitron최차，Coltosol화Caviton용우잠봉적괄의시간위일이주，ZOE화Ceivitron위1주。
BACKGROUND:The teeth that need to do the root canal treatment mostly have large dental defects which are even residual crown and residual root, but it takes a long time for completing the permanent restoration after treatment. So the temporary filings are important for sealing coronal microleakage after root canal treatment. OBJECTIVE:To evaluate the influence of temporary filing materials on coronal microleakage of endodonticaly treated teeth and to discuss the influence of time on the sealing ability of coronal temporary filings. METHODS: Totaly 126 extracted teeth were colected, and divided into experimental group (n=120), positive control group (n=3) and negative control group (n=3). Root canal treatment was done in the experimental and positive control groups, and then the experimental group was subdivided into four groups in which, Coltosol, Caviton, ZOE, Ceivitron were used as temporary filing materials, respectively. In the positive control group, there was no filing material. The teeth in the negative control group maintained intact. The microleakage of samples was observed at 1, 2, 4 weeks after temporary sealing. RESULTS AND CONCLUSION: There was no dye in the root canal of the negative control group, but the whole root canal in the positive control group was stained. At 1 week after sealing, the microleakage lengths of the Coltosol and Caviton groups were significantly shorter than those of the ZOE and Ceivitron groups (P < 0.05). At 2 weeks after sealing, the microleakage length of the Coltosol group was significantly shorter than that of the Ceivitron group (P < 0.05). At 4 weeks after sealing, the microleakage lengths of the Coltosol, Caviton and ZOE were significantly shorter than that of the Ceivitron group (P < 0.05). with the extension of sealing time, the microleakage lengths of the four subgroups were al increased, and there were significant differences in each group at different time points (P < 0.05). These findings indicate that Coltosol and Caviton are the best as the temporary filing materials, folowed by ZOE, and Ceivitron is the worst. The optimum time of temporary sealing is 1-2 weeks for Coltosol and Caviton, and 1 week for ZOE and Ceivitron.