第三代椎间盘探头的Option-4算法：特定部位相对附着水平测量值的选定一致性及特定部位纵向附着水平变化的检测

Option-4 algorithm for third generation disc probe: agreement of selected site-specific relative attachment level measurements and detection of longitudinal site-specific attachment level change.

作者信息

Breen H J, Rogers P A, Slaney R E, Gillett I R, Johnson N W

机构信息

Clinical Practice, Chelmsford, Essex, UK.

出版信息

J Periodontol. 1999 Feb;70(2):159-70. doi: 10.1902/jop.1999.70.2.159.

DOI:10.1902/jop.1999.70.2.159

PMID:10102553

Abstract

BACKGROUND

Longitudinal site-specific attachment level change (SSAC), identified from serial relative attachment level measurements (RAL), is the principal indicator of progression/regression of periodontal diseases. Many variables confound RAL reproducibility and affect measurement error. The Option-4 algorithm was designed to reduce measurement error and improve accuracy and sensitivity of SSAC detection. The study aimed to evaluate the performance of the Option-4 algorithm.

METHODS

A precalibrated clinician recorded full mouth RAL with a third generation disc probe on 4 occasions over 6 months in 16 subjects (mean age 48.1 years) with moderately advanced chronic adult periodontitis (2,312 sites). Option-4 allowed up to 4 RAL recordings per site per visit until 2 values had differences < or =1.0 mm and their mean was < or =1.0 mm from the previous visit mean: the clinician made the selection if these criteria were unfulfilled.

RESULTS

Within-visit agreement < or =1.0 mm was > or =99.6%: all within-visit correlation coefficients = 0.98 (P<0.001). At each visit, mean difference in Option-4 values was < 0.05 mm, mean absolute difference (ignoring direction) was < or =.34 mm. Mean site-specific variances ranged from 0.092 mm2 to 0.097 mm2 across all visits. Subject thresholds for site-specific attachment level change (from estimated 95% confidence limits of visit 1 data) ranged from 0.52 mm to 0.67 mm. Linear SSAC (by linear regression) and between-visit patterns of SSAC were investigated. SSAC was detected in 100% subjects and at 51.0% measured sites. Linear SSAC (R2 > or =0.90: P < or =0.05) occurred at 105 sites (4.5%): 32 sites (1.4%) deteriorated, 73 sites (3.1%) improved. Between-visit SSAC occurred at 1,074 sites (46.5%): 391 sites (16.9%) deteriorated, 295 sites (12.8%) improved, and 388 sites (16.8%) showed exacerbation/remission patterns.

CONCLUSIONS

The Option-4 algorithm produced high RAL agreement. Site-specific attachment level change was detected in both directions in 100% subjects and at 51.0% measured sites.

摘要

背景

从连续相对附着水平测量（RAL）中识别出的纵向特定部位附着水平变化（SSAC）是牙周疾病进展/消退的主要指标。许多变量会混淆RAL的可重复性并影响测量误差。Option-4算法旨在减少测量误差并提高SSAC检测的准确性和敏感性。本研究旨在评估Option-4算法的性能。

方法

一名经过预校准的临床医生在6个月内分4次，使用第三代圆盘探针为16名年龄平均为48.1岁、患有中度晚期慢性成人牙周炎的受试者（共2312个部位）记录全口RAL。Option-4允许每次就诊时每个部位最多记录4次RAL，直到有2个值的差异≤1.0mm且其平均值与上一次就诊平均值的差异≤1.0mm：如果这些标准未满足，则由临床医生进行选择。

结果

就诊内一致性≤1.0mm的比例≥99.6%：所有就诊内相关系数均=0.98（P<0.001）。每次就诊时，Option-4值的平均差异<0.05mm，平均绝对差异（忽略方向）≤0.34mm。在所有就诊中，特定部位的平均方差范围为0.092mm²至0.097mm²。特定部位附着水平变化的受试者阈值（根据第1次就诊数据的估计95%置信限）范围为0.52mm至0.67mm。研究了线性SSAC（通过线性回归）和就诊间SSAC模式。在100%的受试者和51.0%的测量部位检测到了SSAC。线性SSAC（R²≥0.90：P≤0.05）出现在105个部位（4.5%）：32个部位（1.4%）恶化，73个部位（3.1%）改善。就诊间SSAC出现在1074个部位（46.5%）：391个部位（16.9%）恶化，295个部位（12.8%）改善，388个部位（16.8%）呈现加重/缓解模式。