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Examining the Sensitivity and Specificity of 2 Screening Instruments: Odontogenic or Temporomandibular Disorder Pain?

Abstract：

INTRODUCTION:Two groups of patients with orofacial pains that are clinically important to distinguish from each other are patients with odontogenic pain and temporomandibular disorder (TMD) pain. The aim of this study was to determine the sensitivity and specificity of 2 screening instruments in distinguishing between patients with these types of pain. METHODS:A convenience sample of patients seeking care at an endodontic clinic and an orofacial pain clinic were recruited. The 14-item dental pain questionnaire (DePaQ) was used to screen for odontogenic pain and the 6-item TMD screener was used to screen for TMD pain. Sensitivity and specificity calculations with 95% confidence intervals (CIs) were performed for both instruments, and thresholds/acceptability/performance was assessed using published guidelines. RESULTS:Thirty-four patients with odontogenic pain and 37 patients with TMD pain were included in this study. The sensitivity of the DePaQ was 0.85 (95% CI, 0.69-0.95), and specificity was 0.11 (95% CI, 0.03-0.25). The sensitivity of the TMD screener was 0.92 (95% CI, 0.78-0.98), and specificity was 0.59 (95% CI, 0.41-0.75). The point estimates, a single value used to estimate the population parameter, for both the DePaQ and TMD screener were "acceptable" in identifying patients who had the pain condition in question (ie, sensitivity), whereas the point estimate for appropriately identifying patients who did not have the pain condition when they did not have it (ie, specificity) was "nonacceptable" for both. CONCLUSIONS:The DePaQ and the TMD screener lack diagnostic accuracy for differentiating TMD from odontogenic tooth pain without adjunctive (clinical) investigation(s) or examination. However, the TMD screener has high sensitivity for identifying true positives (ie, TMD pain) and would therefore be useful as a screening instrument when one can definitively exclude odontogenic etiology for pain on clinical and radiographic grounds, for instance in endodontic practices. In this study, the negative predictive value was also high in the TMD screener, and, therefore, we can trust a negative result (ie, when the TMD screener is negative, we can be fairly certain the pain diagnosis is not TMD and rule out TMD).

journal_name

J Endod

journal_title

Journal of endodontics

authors

Fonseca Alonso B,Nixdorf DR,Shueb SS,John MT,Law AS,Durham J

doi

10.1016/j.joen.2016.10.001

subject

Has Abstract

pub_date

2017-01-01 00:00:00

pages

36-45

issue

eissn

0099-2399

issn

1878-3554

pii

S0099-2399(16)30707-5

journal_volume

pub_type

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Examining the Sensitivity and Specificity of 2 Screening Instruments: Odontogenic or Temporomandibular Disorder Pain?