Watts T L
Department of Periodontology and Preventive Dentistry, United Medical School of Guy's, London, UK.
J Clin Periodontol. 1989 Sep;16(8):529-33. doi: 10.1111/j.1600-051x.1989.tb02331.x.
This study examined the morphology of 487 probing sites in patients with untreated periodontitis, using a constant force probe (0.25 N, 0.5 mm) and flexible stent with guide grooves, at 3 adjacent points per site, 6 sites per tooth. Sites were classified into 9 configuration types according to the relationship of the 3 adjacent points. Duplicate measurements were made and sites were analysed with special reference to whether a slight horizontal movement was likely at the second examination. 60% of individual point probing measurements were exactly reproduced, but only 23% of site configurations. 65% of configuration change was accountable on the basis of slight horizontal shift of the probe. Only 13% of configurations required the postulate of other forms of probing error. These results suggest that probing reproducibility is not always an indication of site reproducibility, and that the variation of probe position in the transverse plane is an important source of probing error, even when a stent is used.
本研究使用恒力探针（0.25 N，0.5 mm）和带有导向槽的柔性支架，在未经治疗的牙周炎患者的487个探诊位点进行形态学检查，每个位点在3个相邻点处进行测量，每颗牙6个位点。根据3个相邻点的关系，将位点分为9种形态类型。进行了重复测量，并特别参考第二次检查时是否可能发生轻微水平移动对位点进行分析。60%的单点探诊测量结果能够精确再现，但位点形态的精确再现率仅为23%。65%的形态变化可归因于探针的轻微水平移动。只有13%的形态变化需要假定存在其他形式的探诊误差。这些结果表明，探诊的可重复性并不总是位点可重复性的指标，即使使用了支架，探针在横向平面上的位置变化也是探诊误差的一个重要来源。
