Int J Periodontics Restorative Dent. 2023 Oct 24(7):s235-s243. doi: 10.11607/prd.6380.
An accurate assessment of the disease extent and lesion size is needed for appropriate therapy decisions of endodontic-periodontic (endo-perio) lesions. CBCT imaging with less radiation and high spatial resolution can provide a comprehensive evaluation of endo-perio lesions. A total of 71 teeth with endo-perio lesions were assessed using CBCT. Periodontal bone defects were studied for bone loss pattern (horizontal/vertical) along with bone loss levels on mesial and distal sides in association with furcation involvement. The periapical lesions were studied for their prevalence and extent based on CBCT PAI Score. Horizontal and vertical bone loss were detected in 54 teeth (76.1%) and 17 teeth (23.95%), respectively. Mean crestal bone loss levels on mesial and distal aspects were 4.80 ± 3.21 mm and 5.74 ± 3.91 mm, respectively. The mean height, width, and depth of furcation defects were 3.19 ± 2.99 mm, 1.94 ± 0.98 mm, and 4.44 ± 1.92 mm, respectively. Periapical lesions were recorded in 55 teeth (77.5%). A CBCT PAI score of 5 was scored in 35 teeth with a mean lesion diameter of 11.3 ± 2.83 mm, while 16 teeth had healthy periapical tissues (scores of 0 and 1). CBCT is a valuable diagnostic tool that can help assess endo-perio lesions by providing morphometric measurements of periodontal bone defects and the extent of associated periapical lesions.
准确评估牙髓牙周（endo-perio）病变的疾病程度和病变大小对于适当的治疗决策至关重要。具有低辐射和高空间分辨率的 CBCT 成像可以为 endo-perio 病变提供全面评估。共对 71 颗具有 endo-perio 病变的牙齿进行了 CBCT 评估。研究了牙周骨缺损的骨丢失模式（水平/垂直）以及与分叉受累相关的近远中侧骨丢失水平。根据 CBCT PAI 评分研究了根尖病变的患病率和范围。在 54 颗牙齿（76.1%）和 17 颗牙齿（23.95%）中分别检测到水平和垂直骨丢失。近远中颊舌骨丢失的平均嵴顶骨丢失水平分别为 4.80 ± 3.21mm 和 5.74 ± 3.91mm。分叉缺损的平均高度、宽度和深度分别为 3.19 ± 2.99mm、1.94 ± 0.98mm 和 4.44 ± 1.92mm。在 55 颗牙齿（77.5%）中记录到根尖病变。35 颗牙齿的 CBCT PAI 评分为 5，平均病变直径为 11.3 ± 2.83mm，而 16 颗牙齿的根尖组织健康（评分为 0 和 1）。CBCT 是一种有价值的诊断工具，通过提供牙周骨缺损的形态计量学测量和相关根尖病变的范围，可以帮助评估牙髓牙周病变。
