Vol. 11, Issue 4, Part D (2025)

Guided Biofilm Therapy (GPT) presents a novel approach for mechanical plaque control in periodontal therapy, which involves in detection of plaque by plaque detector agent, removal of supra-gingival and sub-gingival biofilm and stain by air abrasion, and finally (if required) scaling with a specially designed tip. The air polishing device removes plaque by directing a controlled jet of abrasive powder particle, compressed air and water onto tooth surface through a nozzle. This article aims to discuss the working principal, protocol, benefits, limitation and future scope of the technique in brief.