图 2. X线片追踪评估冠折露髓行部分活髓切断术的患牙牙髓根尖周情况.

Fig 2 Track and assess the pulpal and periapical tissue of the tooth with crown fracture which has been performed partial pulpotomy by X ray

A：21牙术前X线片，冠部缺损至髓腔，未见根折影像，根尖孔未发育完全；B：iRoot BP盖髓后6月X线片，冠部可见高密度盖髓材料影像，根尖孔未发育完全；C：iRoot BP盖髓后1年X线片，21牙根尖孔有闭合发育的趋势。