Thornley P H, Stewardson D A, Rout P G J, Burke F J T
University of Birmigham, School of Dentistry.
Br Dent J. 2006 May 13;200(9):515-9; discussion 503. doi: 10.1038/sj.bdj.4813527.
To determine if a commercial device (Vischeck) for monitoring film processing quality was a practical option in general dental practice, and to assess processing quality among a group of GDPs in the West Midlands with this device.
Clinical evaluation.
General dental practice, UK, 2004.
Ten GDP volunteers from a practice based research group processed Vischeck strips (a) when chemicals were changed, (b) one week later, and (c) immediately before the next change of chemicals. These were compared with strips processed under ideal conditions. Additionally, a series of duplicate radiographs were produced and processed together with Vischeck strips in progressively more dilute developer solutions to compare the change in radiograph quality assessed clinically with that derived from the Vischeck.
The Vischeck strips suggested that at the time chosen for change of processing chemicals, eight dentists had been processing films well beyond the point indicated for replacement. Solutions were changed after a wide range of time periods and number of films processed. The calibration of the Vischeck strip correlated closely to a clinical assessment of acceptable film quality.
Vischeck strips are a useful aid to monitoring processing quality in automatic developers in general dental practice. Most of this group of GDPs were using chemicals beyond the point at which diagnostic yield would be affected.
确定一种用于监测胶片冲洗质量的商用设备（Vischeck）在普通牙科诊所是否是一种实用的选择，并使用该设备评估西米德兰兹郡一组全科牙医（GDPs）的冲洗质量。
临床评估。
英国普通牙科诊所，2004年。
来自一个基于诊所的研究小组的10名GDP志愿者在以下情况下冲洗Vischeck试纸条：（a）更换化学药剂时；（b）一周后；（c）在下一次更换化学药剂之前立即冲洗。将这些试纸条与在理想条件下冲洗的试纸条进行比较。此外，制作了一系列重复的X光片，并与Vischeck试纸条一起在逐渐稀释的显影剂溶液中冲洗，以比较临床评估的X光片质量变化与Vischeck得出的变化。
Vischeck试纸条表明，在选择更换冲洗化学药剂时，八名牙医冲洗胶片的时间远远超过了指示更换的时间点。在广泛的时间段和冲洗胶片数量后更换了溶液。Vischeck试纸条的校准与对可接受胶片质量的临床评估密切相关。
Vischeck试纸条有助于监测普通牙科诊所自动显影剂的冲洗质量。这组GDP中的大多数人使用化学药剂的时间超过了会影响诊断效果的时间点。
