Sustainable Practices in Dental Prosthesis: A Green Dentistry Perspective

Abstract

Background: Dental impressions are essential in prosthodontics and restorative dentistry. Conventional methods, typically using alginate and stone, are widely practiced but contribute to clinical waste and environmental degradation. With growing attention to sustainability, digital intraoral scanning (DIS) offers a promising alternative. Objective: This study aims to compare the environmental impacts of conventional impression techniques and digital intraoral scanning, using sustainability indicators such as material waste, resource consumption, carbon emissions, and energy use. Methodology: In the conventional method, impressions were taken using alginate material with a stock tray, and stone was used to fabricate the dental casts. For the digital method, a segmental intraoral scanning technique was performed using the 3Shape Dental System, which provides real-time visualization and digital processing of the scan. Results: Digital intraoral scanning generated significantly less material waste and required fewer disposable resources than the conventional method. It also showed potential for lower carbon emissions over time. Conclusion: Digital intraoral scanning is a more environmentally sustainable technique compared to conventional impression methods, particularly in terms of waste reduction and long-term ecological impact.