Raichur Preeti S, Setty Swati B, Thakur Srinath L, Naikmasur Venkatesh G
B.D.S. Post Graduate Student. Department of Periodontics and Oral Implantology. S.D.M. College of Dental Sciences, Sattur, Dharwad, India.
M.D.S. Professor. Department of Periodontics and Oral Implantology. S.D.M. College of Dental Sciences, Sattur, Dharwad, India.
J Clin Exp Dent. 2012 Feb 1;4(1):e43-7. doi: 10.4317/jced.50711. eCollection 2012 Feb.
To compare the linear measurements of Radiovisiography (RVG) and Digital volume tomography (DVT) to direct surgical measurements in the detection of periodontal infrabony defects.
RVG and DVT images were taken prior to periodontal surgery for 28 infrabony periodontal defects. After defect debridement, direct bony defect measurements were made from the cemento enamel junction (CEJ) to the base of the defect (CEJ-BD) and to the alveolar crest (CEJ-AC) with a periodontal probe. These same measurements were made on the RVG and DVT images and then compared to the direct surgical values.
DVT correlated strongly with surgical measurements, whereas RVG correlated less favorably (P=0.0109, P=0.0193 respectively).No significant difference for CEJ-AC (P=0.0599) was seen between DVT and surgical measurements; however, there was a significant difference for the distance CEJ-BD (P=0.0105).
DVT technique is significantly more accurate than RVG in the detection of infrabony periodontal defects. Key words:Tomography, volume computed, dental radiovisiography, periodontal diseases.
比较放射成像(RVG)和数字容积断层扫描(DVT)在检测牙周骨下袋缺损时的线性测量值与直接手术测量值。
对28例牙周骨下袋缺损患者在牙周手术前拍摄RVG和DVT图像。在清除缺损组织后,用牙周探针从牙骨质釉质界(CEJ)至缺损底部(CEJ-BD)以及至牙槽嵴(CEJ-AC)进行直接骨缺损测量。在RVG和DVT图像上进行相同测量,然后与直接手术测量值进行比较。
DVT与手术测量值相关性强,而RVG相关性较差(分别为P = 0.0109,P = 0.0193)。DVT与手术测量值之间在CEJ-AC方面未见显著差异(P = 0.0599);然而,在CEJ-BD距离方面存在显著差异(P = 0.0105)。
在检测牙周骨下袋缺损方面,DVT技术比RVG显著更准确。关键词:体层摄影术,容积计算机体层摄影,牙科放射成像,牙周疾病