广州医科大学学报
廣州醫科大學學報
엄주의과대학학보
Academic Journal of Guangzhou Medical College
2014年
4期
1-4
,共4页
根管封闭剂%根尖封闭性%微渗漏
根管封閉劑%根尖封閉性%微滲漏
근관봉폐제%근첨봉폐성%미삼루
root canal sealer%apical root sealing%microleakage
目的：比较4种根管封闭剂的体外根尖封闭能力,为临床医师选择应用提供参考。方法：选取78颗单根管离体牙,采用机用ProTaper镍钛器械根管预备后随机分为A、B、C、D 4个实验组(每组18颗牙)和2个对照组(每组3颗牙)。 A组牙胶尖/Cortisomol封闭剂、B组牙胶尖/AH-plus封闭剂、C组牙胶尖/Roek-Seal封闭剂、D组Resilon/RealSeal SE封闭剂。 E组为阳性对照组、F为阴性对照组,各组均使用冷侧压方法进行根管充填。将实验组牙齿(每组10颗)及对照组牙齿进行染色微渗漏实验；实验组牙齿(每组8颗),扫描电镜下观察封闭剂与根管壁结合情况。结果：A组染料渗入长度(0.94±0.21) mm,高于其余三组[B组(0.65±0.23) mm、C组(0.56±0.15) mm,D组(0.45±0.15) mm)](P<0.05)。扫描电镜显示各组根管封闭剂与根管壁形成的最大缝隙宽度比较,差异有统计学意义(P<0.05)。 A组最大缝隙宽度最大(28.73±7.42)μm,D组次之(4.93±0.89)μm,B组(0.89±0.47)μm、C组(0.86±0.43)μm最小。结论：树脂类根管封闭剂根尖封闭性能明显优于氧化锌类封闭剂,不同树脂类根管封闭剂则各有优势。
目的：比較4種根管封閉劑的體外根尖封閉能力,為臨床醫師選擇應用提供參攷。方法：選取78顆單根管離體牙,採用機用ProTaper鎳鈦器械根管預備後隨機分為A、B、C、D 4箇實驗組(每組18顆牙)和2箇對照組(每組3顆牙)。 A組牙膠尖/Cortisomol封閉劑、B組牙膠尖/AH-plus封閉劑、C組牙膠尖/Roek-Seal封閉劑、D組Resilon/RealSeal SE封閉劑。 E組為暘性對照組、F為陰性對照組,各組均使用冷側壓方法進行根管充填。將實驗組牙齒(每組10顆)及對照組牙齒進行染色微滲漏實驗；實驗組牙齒(每組8顆),掃描電鏡下觀察封閉劑與根管壁結閤情況。結果：A組染料滲入長度(0.94±0.21) mm,高于其餘三組[B組(0.65±0.23) mm、C組(0.56±0.15) mm,D組(0.45±0.15) mm)](P<0.05)。掃描電鏡顯示各組根管封閉劑與根管壁形成的最大縫隙寬度比較,差異有統計學意義(P<0.05)。 A組最大縫隙寬度最大(28.73±7.42)μm,D組次之(4.93±0.89)μm,B組(0.89±0.47)μm、C組(0.86±0.43)μm最小。結論：樹脂類根管封閉劑根尖封閉性能明顯優于氧化鋅類封閉劑,不同樹脂類根管封閉劑則各有優勢。
목적：비교4충근관봉폐제적체외근첨봉폐능력,위림상의사선택응용제공삼고。방법：선취78과단근관리체아,채용궤용ProTaper얼태기계근관예비후수궤분위A、B、C、D 4개실험조(매조18과아)화2개대조조(매조3과아)。 A조아효첨/Cortisomol봉폐제、B조아효첨/AH-plus봉폐제、C조아효첨/Roek-Seal봉폐제、D조Resilon/RealSeal SE봉폐제。 E조위양성대조조、F위음성대조조,각조균사용랭측압방법진행근관충전。장실험조아치(매조10과)급대조조아치진행염색미삼루실험；실험조아치(매조8과),소묘전경하관찰봉폐제여근관벽결합정황。결과：A조염료삼입장도(0.94±0.21) mm,고우기여삼조[B조(0.65±0.23) mm、C조(0.56±0.15) mm,D조(0.45±0.15) mm)](P<0.05)。소묘전경현시각조근관봉폐제여근관벽형성적최대봉극관도비교,차이유통계학의의(P<0.05)。 A조최대봉극관도최대(28.73±7.42)μm,D조차지(4.93±0.89)μm,B조(0.89±0.47)μm、C조(0.86±0.43)μm최소。결론：수지류근관봉폐제근첨봉폐성능명현우우양화자류봉폐제,불동수지류근관봉폐제칙각유우세。
Objective:To compare the apical sealing ability of 4 kinds of root canal sealers in vitro, and provide reference for clinicians. Methods:78 teeth with single root canal were selected randomly divided into 4 experimental groups of A, B, C and D ( 18 teeth per group) and 2 control groups ( 3 teeth per group) . Group A:gutta-percha/Cortisomol; Group B: gutta-percha/AH-plus; Group C: gutta-percha/RoekSeal; Group D:Resilon/RealSeal SE. Group E was positive control group, and Group F was negative control group. And each group adopted cold laterally compacted Gutta-Percha for root-canal filling. Dye leakage test was performed in the teeth of the experimental groups ( 10 teeth in each group ) and the control groups. And the teeth of the experimental groups ( 8 teeth in each group) were examined under the scanning electronic microscope to see the bonding of sealer and root dentin. Results:The dye of Group A (0.94±0.21)mm infiltrated more deeply than the other three groups [Group B (0.65±0.23)mm, Group C (0.56±0.15)mm, Group D (0.45±0.15mm) (P<0. 05) ] . The scanning electronic microscope showed that there were statistical differences of the widest width between sealer and dentin among the groups (P<0.05). The gap in Group A (28.73±7.42) μm was the widest, followed by Group D (4.93±0.89) μm, Group B (0.89±0.47) μm and the thinnest Group C (0.86±0.43) μm. Conclusion:The sealing capability of resinae sealers are significant better than the zinc oxide sealers. Different kinds of resinae sealers have their advantages.
