A Randomized Controlled Trial of Arthrocentesis versus Mitek Mini Anchor in the Treatment of Anterior Disc Displacement without Reduction of Temporomandibular Joint

Introduction: Arthrocentesis and disc plication are the most common techniques currently applied to treat anterior disc displacement without reduction (ADDWOR) of temporomandibular joint (TMJ). Objective: The aim of this study was to compare the outcome of arthrocentesis and Mitek mini anchor in patients with ADDWOR of TMJ. Materials and Methods: Sixteen patients (24 joints) with ADDWOR requiring treatment were randomized into two equal groups for either arthrocentesis or Mitek mini anchor (for disc repositioning). Patient’s TMJ parameters recorded were pain intensity on visual analog scale (VAS), maximum mouth opening (MMO), muscle tenderness and magnetic resonance imaging (MRI). They were evaluated preoperative and 3 and 9 months postoperatively. P value < 0.05 was considered significance. Results: This study showed significant difference (P value < 0.05) in most of outcomes (pain intensity, MMO and disc position) between arthrocentesis and Mitek mini anchor (for disc repositioning) during the follow up period. While, non significant difference between both groups in muscle tenderness (P > 0.05) was recorded. Conclusion: It could be concluded that, both arthrocentesis and Mitek mini anchor are appropriate techniques for the treatment of ADDWOR with a significant difference between both groups in favor of Mitek mini anchor for disc repositioning.