Kang Sumi, Ha Se-Won, Kim Ukseong, Kim Sunil, Kim Euiseong
Microscope Center, Department of Conservative Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea.
J Clin Med. 2020 Nov 19;9(11):3714. doi: 10.3390/jcm9113714.
This study aimed to evaluate one-year radiographic healing after endodontic microsurgery using CBCT with modified PENN 3D criteria and to compare the outcome with results evaluated using Molven's criteria. A total of 107 teeth from 96 patients were evaluated one year after endodontic microsurgery by using CBCT scans with modified PENN 3D criteria and periapical radiographs with Molven's criteria. Both preoperative and postoperative lesion volumes were calculated using ITK-SNAP (free software). Radiographic healing assessment using periapical radiographs and CBCT images, and preoperative and postoperative lesion volume measurements were performed independently by two examiners. The assessment using Molven's criteria resulted in 75 complete healings, 18 incomplete healings, eight uncertain healings, and six unsatisfactory healings. Based on modified PENN 3D criteria, 64 teeth were categorized as complete healing, 29 teeth as limited healing, six teeth as uncertain healing, and eight teeth as unsatisfactory healing. With the one-year follow-up, CBCT scans showed a lower healing tendency than did periapical radiography. The volumes of apical radiolucency after the surgery were reduced by 77.7% on average at one-year follow up.
本研究旨在使用改良的PENN 3D标准通过CBCT评估根管显微外科手术后一年的影像学愈合情况，并将结果与使用Molven标准评估的结果进行比较。对96例患者的107颗牙齿在根管显微外科手术后一年进行评估，使用改良的PENN 3D标准进行CBCT扫描，并使用Molven标准进行根尖片检查。术前和术后的病变体积均使用ITK-SNAP（免费软件）进行计算。根尖片和CBCT图像的影像学愈合评估以及术前和术后病变体积测量由两名检查者独立进行。使用Molven标准评估的结果为75例完全愈合、18例不完全愈合、8例愈合情况不确定和6例愈合情况不满意。基于改良的PENN 3D标准，64颗牙齿被归类为完全愈合，29颗牙齿为有限愈合，6颗牙齿为愈合情况不确定，8颗牙齿为愈合情况不满意。经过一年的随访，CBCT扫描显示的愈合趋势低于根尖片检查。在一年的随访中，手术后根尖透影区的体积平均减少了77.7%。
