CAJ | 학술논문

目的：比较高温热塑充填技术与冷牙胶侧方加压充填技术根尖封闭能力；方法收集68颗新鲜离体牙为研究对象，随机分为A 组（30颗牙）、B 组（30颗牙）、实验阳性组（4颗牙）、实验阴性组（4颗牙），A 组采用高温热塑充填技术，B 组采用冷牙胶侧方加压充填技术，比较根管充填时间、渗漏现象、封闭性能及顺应性。结果高温热塑充填组根管充填时间（6．48±0．45）min、渗入长度（1．02±0．14）mm明显低于冷牙胶侧方加压充填组；1．5mm、＞100且＜250根管1．5mm、≥250根管1．5 mm、3．5 mm 截面封闭能力（0．9485±0．0218、0．9504±0．0152、0．9452±0．0147、0．9522±0．0142）、1．5 mm、3．5 mm 截面顺应性（0．9558±0．0164、0．9722±0．0142）均明显高于冷牙胶侧方充填组（P ＜0．05）。结论高温热塑充填技术能减少充填时间，增强顺应性，具有良好的封闭效果。
목적：비교고온열소충전기술여랭아효측방가압충전기술근첨봉폐능력；방법수집68과신선리체아위연구대상，수궤분위A 조（30과아）、B 조（30과아）、실험양성조（4과아）、실험음성조（4과아），A 조채용고온열소충전기술，B 조채용랭아효측방가압충전기술，비교근관충전시간、삼루현상、봉폐성능급순응성。결과고온열소충전조근관충전시간（6．48±0．45）min、삼입장도（1．02±0．14）mm명현저우랭아효측방가압충전조；1．5mm、＞100차＜250근관1．5mm、≥250근관1．5 mm、3．5 mm 절면봉폐능력（0．9485±0．0218、0．9504±0．0152、0．9452±0．0147、0．9522±0．0142）、1．5 mm、3．5 mm 절면순응성（0．9558±0．0164、0．9722±0．0142）균명현고우랭아효측방충전조（P ＜0．05）。결론고온열소충전기술능감소충전시간，증강순응성，구유량호적봉폐효과。
Objective To compare the effect between high-temperature thermoplasticized injectable technique and cold lateral condensation on sealing ability.Methods 68 fresh vitro teeth were divided into group A (30 teeth),group B (30 teeth),positive group (4 teeth)and negative group (4 teeth).Group A was given high-temperature thermoplasticized injectable technique,group B was given cold lateral condensation technique.A root canal filling time,leakage phenomenon, sealing ability and compliance were compared.Results Root canal filling time and seeping into length of group A were significantly lower than those of group B,while sealing capacity and compli-ance were significantly higher than those of group B (P <0.05).Conclusion High-temperature thermoplasticized injectable technique can reduce the filling time,increase compliance and perform a good sealing effect on root canal.