This pilot interventional in vivo study aims to quantitatively evaluate and compare the amount of adhesive residue left on the skin following removal of extraoral maxillofacial prosthetic adhesives. Five commercially available adhesives will be tested using standardized silicone strips applied to randomized sites on the forearms of healthy volunteers. After 8 hours of wear, the strips will be removed, and adhesive residue will be quantified using gravimetric analysis based on differences in strip weight before and after removal. The study also aims to evaluate adhesive failure modes and compare the cleanability of silicone-based and water-based adhesives. Findings from this study may help clinicians select adhesives that optimize prosthesis retention while minimizing skin irritation and patient burden.