Research Article

DC/TMD Examiner Protocol: Longitudinal Evaluation on Interexaminer Reliability

Table 2

Cohen’s kappa (K) and examiner agreement (% agreement values in parentheses) for reporting pain (Yes/No) and for reporting TMJ noises during opening and closing movements (Yes/No) between the “reference” and Examiner 1 and the “reference” and Examiner 2. N = number of observations.

20132014
Examiner 1Examiner 2Examiner 1Examiner 2
NK (% agreement)NK (% agreement)NK (% agreement)NK (% agreement)

M. temporalis1
 Posterior240.78 (91.7)270.81 (92.6)320.40 (78.1)320.30 (71.9)
 Middle230.56 (78.3)260.33 (65.4)310.48 (74.2)320.57 (81.3)
 Anterior210.35 (66.7)270.70 (85.2)320.68 (84.4)320.56 (78.1)
M. masseter2
 Origin240.50 (75.0)260.34 (65.4)310.69 (80.6)310.27 (64.5)
 Body220.31 (68.3)250.66 (88.0)300.74 (90.0)320.67 (84.3)
 Insertion200.50 (75.0)260.57 (76.9)300.67 (83.3)320.87 (93.8)
TMJ sounds
 Open/close3
  Click
   Open320.48 (75.0)320.54 (78.1)320.62 (90.6)320.72 (93.8)
   Close320.69 (87.5)320.72 (87.5)321.00 (100.0)320.72 (96.9)
  Crepitus
   Open32(100.0)32(100.0)32(100.0)32(100.0)
   Close32(100.0)32(93.8)32(96.9)32(96.9)
 Lateral/protrusive4
  Click320.66 (84.4)320.62 (81.3)320.53 (87.5%)320.53 (87.5)
  Crepitus32(100.0)32(100.0)32(90.6)32(90.6)

1Three vertical zones together (both sides). 2Three horizontal zones together (both sides). 3Opening and closing movements (both sides). 4Lateral and protrusive movements (both sides). For interpretation of the kappa statistic, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3900052/.