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Utility of radiographic crestal lamina dura for predicting periodontitis disease‐activity
Author(s) -
Rams Thomas E.,
Listgarten Max A.,
Slots Jørgen
Publication year - 1994
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.1994.tb00745.x
Subject(s) - medicine , periodontitis , lamina , dentistry , radiography , odds ratio , orthodontics , surgery , anatomy
. The relationship between radiographic crestal lamina dura and periodontitis disease‐activity was studied longitudinally in 51 treated adult patients on a systematic 3‐month maintenance program. The presence or absence of crestal lamina dura at 1809 interproximal sites was scored from periapical and bitewing radiographs taken at baseline of a 36‐month maintenance care period. Semi‐annual clinical evaluations by 2 independent examiners were carried out on each patient, with disease recurrence defined as sites revealing a 3 mm increase in probing depth from baseline, or a 2 mm increase in probing depth together with a 2 mm loss of relative attachment level from an occlusal stent. Over the 36‐month study period, 23 (45%) patients exhibited disease recurrence at 55 (3%) interproximal tooth sites scored for baseline crestal lamina dura. Absence of detectable baseline crestal lamina dura yielded high sensitivity (87–100%), but low specificity (17%) and low positive predictive values (0.8–3.2%), for localized periodontitis recurrence. In contrast, no sites exhibiting an intact baseline crestal lamina dura demonstrated periodontitis recurrence up to 24 months from baseline (100% positive predictive values). Presence of radiographic crestal lamina dura was positively associated with clinical periodontal stability (summary odds ratio for sites = 2.6, P = 0.0004), and negatively associated with periodontitis recurrence (summary odds ratio for sites = 0.4, P = 0.0004), for the 36‐month study period. Evaluation of radiographic crestal lamina dura status appears valuable for assessing the risk of periodontitis disease‐activity at interproximal tooth sites in patients on maintenance care programs.