none 10.31254/dentistry.2025.10310 BioMed Research Publishers BioMed Research Publishers 16195 191234183 314763 20260308062943796 10.31254 2026-03-08T06:29:47Z 2026-03-08T06:29:45Z 0 International Journal of Dentistry Research Int J Dentistry Res 25813218 10.31254/dentistry https://www.dentistryscience.com/ 01 17 2026 10 3 Shakeel S Khazi Lecturer/Specialist Prosthodontics, Department of Restorative Dentistry, College of Dentistry, Gulf Medical University, Ajman, United Arab Emirates Sesha M Reddy Assistant Professor, Department of Periodontics, City University, Ajman, United Arab Emirates Sherif A Sadek Associate Professor, Division of Prosthodontic, Department of Restorative, College of Dentistry, Gulf Medical University, Ajman, United Arab Emirates Mohammed S.U.R Tippu Lecturer/Specialist Oral and Maxillo Facial Surgeon, Department of Oral and Maxillo Facial Surgery, College of Dentistry, Gulf Medical University, Ajman, United Arab Emirates Ashwin L Narayanan Lecturer/Specialist Endodontics, Department of Restorative Dentistry, College of Dentistry, Gulf Medical University, Ajman, United Arab Emirates Mohammed Shammas Associate Professor, Division of Prosthodontics, Department of Oral and Maxillofacial Rehabilitation, Ibn Sina National College for Medical Studies, Jeddah, Saudi Arabia Tina S Titus Clinical Instructor, Department of Restorative Dentistry, Gulf Medical University, Ajman, United Arab Emirates In the fabrication of complete dentures, a precisely made custom tray is essential for obtaining accurate impressions and for ensuring the correct application of pressure and relief on completely edentulous arches. The use of auto-polymerizing polymethyl methacrylate (PMMA) resin has simplified the process of custom tray fabrication. Light-activated polymerizing resin in combination with baseplate wax as a spacer remains a commonly used approach. However, the exothermic polymerization of PMMA can soften or melt the wax spacer, leading to dimensional distortion, tray contamination, and inconsistencies in spacer thickness, thereby compromising the tray’s intended function. This article presents a simple and effective technique that uses aluminium foil to maintain the intended wax spacer thickness and facilitate its easy removal during custom tray fabrication with auto- and light-activated resin materials. 01 17 2026 123 125 1 10.31254/biomed-crossmark-policy www.biomedresearch.org false 10.31254/dentistry.2025.10310 https://www.dentistryscience.com/IJDR_2025103_10.pdf