锥形束CT与根尖片在慢性牙周炎诊断中的应用比较

目的:研究CBCT在慢性牙周炎诊断中的价值。方法:通过拍摄20例慢性牙周炎患者的后牙区CBCT及根尖片,并对其进行临床牙周探针检查,比较纳入的276颗牙唇(颊)、舌(腭)、近中、远中牙槽骨缺损情况。结果:CBCT与临床探诊检查后牙区各位点牙槽骨缺损情况未见明显差异,而CBCT、临床探诊、根尖片检查后牙区近远中牙槽骨缺损可见明显差异(P＜0.05),其中根尖片所测结果小于CBCT及临床探诊,均有统计学意义(P＜0.05)。结论:在慢性牙周炎的诊断中CBCT检测较根尖片更加准确。

Comparison of CBCT and Periapical Radiograph in the Diagnosis of Chronic Periodontitis.

Objective: To assess the value of CBCT in the diagnosis of chronic periodontitis. Methods: Included in this study were twenty patients with chronic periodontitis who took bothfull mouth CBCT and the periapical radiograph of posterior teeth. They also received periodontal clinical examinations. The alveolar bone resorption at the medial-distal and lingual-buccal sites of 276 posterior teeth were measured by CBCT and periapical radiographs. Thecomparison between these two methods was done. Results: There was no significant difference in measuring the amount of resorption between CBCT and the clinical examination. However, the bone loss measured by periapical radiographs was less than those measured by CBCT and clinical examination.There was significant difference in the measured alveolar bone resorption among CBCT, clinical examination and periapical radiographs. Conclusion: CBCT is more accurate in the diagnosis of chronic periodontitis compared with periapical radiographs.