Abstract
The aim of this study was to evaluate the efficacy of the use of the arthrocentesis in patients with disc displacement without reduction (DDWOR). Two hundred and thirty-four (234) patients with DDWOR were evaluated and the following data collected: gender; affected side; age (years); duration of the pain (months); patient's perception of pain (measured by Visual Analogue Scale [VAS 0–10]); maximal interincisal distance (MID) (mm); and joint disc position, determined by magnetic resonance imaging. Data were obtained in two different moments: before the arthrocentesis (M1) and three or four months later (M2). Paired t-Student Test, Scores Test and Wilcoxon Test showed a statistical significant difference (p<0.0001) between the M1 and M2 for the variables VAS and MID. There was an alteration in the joint disc position in 93.88% of the cases after arthrocentesis. There was no association between the general characteristics of the patients on the M1 and the results of the arthrocentesis (p>0.05). It can be concluded that the arthrocentesis is efficient in reducing the pain, in increasing interincisal distance, and altering the joint disc position in patients with DDWOR regardless gender, age side and pain duration.
Highlights
Among the different kinds of temporomandibular joint (TMJ) disorders, the displacement of the disc without reduction (DDWOR) has a prevalence of 35.7% [1]
Arthrocentesis is a minimally invasive joint surgery and it is effective for decreasing pain, increasing maximal interincisal distance, eliminating joint effusion and improving the oral health related to the quality of life of the patients with TMJ disorders [6, 7]
The results of the present study showed that DDWOR patients who underwent arthrocentesis had their VAS reduced and maximal interincisal distance (MID) increased (p
Summary
Among the different kinds of temporomandibular joint (TMJ) disorders, the displacement of the disc without reduction (DDWOR) has a prevalence of 35.7% [1]. Arthrocentesis is a minimally invasive joint surgery and it is effective for decreasing pain, increasing maximal interincisal distance, eliminating joint effusion and improving the oral health related to the quality of life of the patients with TMJ disorders [6, 7]. It consists in washing the superior compartment of the TMJ, which is performed without a direct visualization of the performance. The washing procedure is done using a biocompatible substance, such as a physiological solution, which dilutes the local algogenic substances and frees the joint disc by removing the adhesions formed between the surfaces of it and the mandibular fossa, which is free due to the hydraulic pressure generated by the irrigation process [6, 8,9,10,11]
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