方法通过对全颌曲面断层X线片上牙根尖孔宽度的测量。比较不同根尖孔宽度的电活力试验结果。
Methods The results of pulp electrovitality were compared with that of the width of the tip of a root obtained by X ray photograph.
方法通过对全颌曲面断层X线片上牙根尖孔宽度的测量。比较不同根尖孔宽度的电活力试验结果。
Methods The results of pulp electrovitality were compared with that of the width of the tip of a root obtained by X ray photograph.
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