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随着热牙胶根充技术的运用,人们对其术中所产生的温度变化更加关注。材料和方法将上颌中切牙包埋于一种透明的正牙树脂块中,用Buehler Isoment低速锯从颊舌向通过根管中心纵向剖开。试验时,两半树脂块可重新拉拢并固定。常规根管预备后。在每一半牙根上,按根管垂直的方向,由根管内侧向树脂块的表面钻8个孔。第一个孔打在离解剖根尖1mm处,继之每隔1mm交替地在
With the application of hot gutta percha technique, people pay more attention to the temperature changes caused by their operation. MATERIALS AND METHODS The maxillary central incisor was embedded in a clear orthodontic resin block and dissected longitudinally through the endodontic canal using the Buehler Isoment low speed saw. During the test, two halves of resin block can be re-drawn and fixed. After conventional root canal preparation. In each half root, according to the vertical direction of the root canal, drill 8 holes from the inside of the root canal to the surface of the resin block. The first hole hits 1mm away from the root tip of the dissection and then alternates every 1mm