2025 AMA Research Challenge – Member Premier Access

October 22, 2025

Virtual only, United States

Would you like to see your presentation here, made available to a global audience of researchers?
Add your own presentation or have us affordably record your next conference.

Temporomandibular joint (TMJ) ankylosis causes severe restriction in mouth opening, affecting speech, nutrition, appearance, and oral hygiene. While a variety of techniques for the treatment of TMJ ankylosis have been reported, the exact relationship between different surgical treatment options and patient outcomes is poorly defined. This systematic review aims to assess the current literature on the surgical treatment of TMJ ankylosis to develop a predictive relationship between surgical intervention and patient outcomes. PubMed, Embase, and Web of Science were searched and 52 studies met inclusion criteria. Data extracted included demographics, surgery type, maximal incisal opening (MIO), physiotherapy, complications, and follow-up. Outcomes assessed were re-ankylosis, facial nerve injury, infection, and MIO change. In children, greatest MIO improvement occurred with gap arthroplasty with costochondral and interposition grafts (6.14mm to 32.72mm); smallest with interposition grafts (6.26mm to 31.38mm). Complication rate was 16.7%; re-ankylosis was 10.6%. In adults, greatest MIO improvement was with gap arthroplasty with costochondral and interposition grafts (8.18mm to 37.3mm); smallest in TMJ replacement (9.08mm to 24.62mm). Complication rate was 7.7%; re-ankylosis was 0.89%. Noncompliance to physiotherapy (PT) was a key factor in re-ankylosis and reduced MIO. Treating patients with TMJ ankylosis is challenging due to limited data available to guide treatment. After surgical treatment, an average of 32mm of postoperative MIO can be expected. Postoperative physiotherapy should be emphasized to increase postoperative MIO to prevent re-ankylosis and improve outcomes.

Next from 2025 AMA Research Challenge – Member Premier Access

Systems Genetics Approach for Repurposing FDA-Approved Drugs against​ Early-stage Human Pancreatic Ductal Adenocarcinoma

Systems Genetics Approach for Repurposing FDA-Approved Drugs against​ Early-stage Human Pancreatic Ductal Adenocarcinoma

2025 AMA Research Challenge – Member Premier Access

Minjae Kim
Minjae Kim

22 October 2025