Urman E I
Stomatologiia (Mosk). 1989 Mar-Apr;68(2):14-7.
Comparative evaluation of diagnostic resolution capacity of roentgenological and photoplethysmographic (PPG) investigation was performed in 201 patients with periodontitis. Acute periodontic inflammation (103 patients) was detected in 98% of the cases with PPG and in 94.1% of the cases it allowed to clarify the form of the disease. The respective values for roentgenology were 33.9% and 58.3%. In 98 patients with remitting periodontitis both techniques showed virtually equal diagnostic powers 90.8% for X-rays, and 84.5% for PPG. Color X-ray densitometry sharply increased informative value of conventional X-ray investigation. Roentgenological and functional diagnostic techniques should be combined in diagnosis of periodontal pathology.
对201例牙周炎患者进行了X线检查和光电容积描记法（PPG）诊断分辨率能力的比较评估。在急性牙周炎（103例患者）中，PPG检测出98%的病例，且94.1%的病例能够明确疾病形式。X线检查的相应数值分别为33.9%和58.3%。在98例缓解期牙周炎患者中，两种技术显示出几乎相同的诊断能力，X线检查为90.8%，PPG为84.5%。彩色X线密度测定法显著提高了传统X线检查的信息量。在牙周病理学诊断中应将X线检查和功能诊断技术结合起来。
