两种固态和三种光激励磷光板数字全景系统的图像质量以及下颌第三磨牙拔除的治疗计划

Image quality of two solid-state and three photostimulable phosphor plate digital panoramic systems, and treatment planning of mandibular third molar removal.

作者信息

Benediktsdottir I S, Hintze H, Petersen J K, Wenzel A

机构信息

Department of Oral Radiology, Royal Dental College, Faculty of Health Sciences, University of Aarhus, Denmark.

出版信息

Dentomaxillofac Radiol. 2003 Jan;32(1):39-44. doi: 10.1259/dmfr/25838744.

DOI:10.1259/dmfr/25838744

PMID:12820852

Abstract

OBJECTIVES

The purpose was to evaluate image quality of two solid-state (charge-coupled device (CCD)) and three photostimulable phosphor (PSP) plate digital panoramic systems, and to assess their utility for treatment planning before mandibular third molar removal.

METHODS

433 patients were randomly allocated to five digital systems: Dimax2 and Orthophos Plus (both CCD systems) and DenOptix, DigiDent and Digora (all PSP systems). Image quality was evaluated in six regions on a 4-point scale by three independent observers. In addition, an oral surgeon evaluated image quality in the mandibular third molar region only as well as the utility of the image for treatment planning before removal of that molar.

RESULTS

Images from the DenOptix and DigiDent systems had a significantly lower overall quality than images from the Digora, Dimax2 and Orthophos Plus systems (P < 0.005). The oral surgeon's assessment of image utility resulted in rejection rates of 0% for Orthophos Plus, 2% for Digora, 8% for Dimax2, 12% for DigiDent and 14% for DenOptix images. The rates for the DigiDent and DenOptix images were significantly higher than those for the other systems (P < 0.001), and the rate for Dimax2 was significantly higher than that for Orthophos Plus (P = 0.002).

CONCLUSIONS

The quality of DenOptix and DigiDent digital panoramic images was found to be inferior to the quality found in images obtained with the Digora, Dimax2 and Orthophos Plus systems. Images from the Digora and Orthophos Plus systems were regarded to be the most useful for treatment planning before mandibular third molar removal.

摘要

目的

评估两种固态（电荷耦合器件（CCD））和三种光激励荧光体（PSP）板数字全景系统的图像质量，并评估其在下颌第三磨牙拔除术前治疗计划中的实用性。

方法

433例患者被随机分配到五个数字系统：Dimax2和Orthophos Plus（均为CCD系统）以及DenOptix、DigiDent和Digora（均为PSP系统）。由三名独立观察者以4分制对六个区域的图像质量进行评估。此外，一名口腔外科医生仅评估下颌第三磨牙区域的图像质量以及该磨牙拔除术前图像在治疗计划中的实用性。

结果

DenOptix和DigiDent系统的图像总体质量显著低于Digora、Dimax2和Orthophos Plus系统的图像（P < 0.005）。口腔外科医生对图像实用性的评估结果显示，Orthophos Plus图像的拒绝率为0%，Digora为2%，Dimax2为8%，DigiDent为12%，DenOptix为14%。DigiDent和DenOptix图像的拒绝率显著高于其他系统（P < 0.001），Dimax2的拒绝率显著高于Orthophos Plus（P = 0.002）。