SonicFill超声树脂对大鼠成牙本质细胞和牙髓微血管的影响.docVIP

SonicFill超声树脂对大鼠成牙本质细胞和牙髓微血管的影响 赵千宁，王健平，佟玮玮，苏 丹，余彦衡(佳木斯大学附属口腔医院，黑龙江省佳木斯市 154002) 引用本文：赵千宁，王健平，佟玮玮，苏丹，余彦衡. SonicFill超声树脂对大鼠成牙本质细胞和牙髓微血管的影响[J].中国组织工程研究，2016，20(16):2369-2375. DOI: 10.3969/j.issn.2095-4344.2016.16.012 ORCID: 0000-0002-5993-3767(赵千宁) 文章快速阅读： 文题释义： SonicFill超声树脂：通过Kavo手机输送树脂一次性充填，省略手动分层充填，简化了医生的操作，一次固化的最大深度可达5 mm，改变了传统的后牙充填方式。它的原理是通过高频超声波能量打破树脂中的颗粒联系，使树脂的黏度下降了87%，增加了树脂的流动性，使树脂更加快速、均匀和精确地充满整个窝洞，减少因气泡而产生的空腔。当超声波能量停止时，树脂恢复可塑性，变的黏稠，这种状态更利于雕刻和塑形。Effect of SonicFill ultrasonic resin on rat odontoblasts and dental pulp vessels Zhao Qian-ning, Wang Jian-ping, Tong Wei-wei, Su Dan, Yu Yan-heng (Affiliated Stomatology Hospital of Jiamusi University, Jiamusi 154002, Heilongjiang Province, China) Abstract BACKGROUND: The mechanical properties of SonicFill ultrasonic resin are better than those of the traditional light-cured composite resin, but its effect on odontoblasts and dental pulp vessels is unclear. OBJECTIVE: To study the effect of SonicFill ultrasonic resin on odontoblasts and dental pulp vessels of rats using histological methods. METHODS: Twenty-five Wistar rats are selected for experiment. Ninety-six teeth from the first and second molars were selected and randomly divided into SonicFill ultrasound resin group and Filtek Z350 nano resin group with 48 teeth in each group. Experimental teeth in each group were equally subdivided into 7 days group and 30 days group. Besides, randomly selected five teeth with no intervention served as normal control group. After anesthesia and disinfection, class I cavities on the occlusal surface of the maxillary first and second molars were prepared and filled with SonicFill ultrasound resin and Filtek Z350 nano resin group, respectively. The rats were sacrificed by ink perfusion method, and tooth specimens were taken to observe the changes of odontoblasts and pulp microvessels. RESULTS AND CONCLUSION: At 7 days after filling, two groups had similar changes in the pulp presenting with