GBT (Guided Biofilm Therapy)
What is GBT?
GBT stands for Guided Biofilm Therapy. It is a modern, evidence-based approach to periodontal and implant maintenance that focuses on the systematic removal of dental biofilm (a thin, slimy film of bacteria that adheres to the surface of the tooth) rather than just calculus.

What are the steps of GBT?
GBT typically follows a specific protocol, which includes:
- Assessment – periodontal charting and diagnosis
- Disclosure – staining to visualize biofilm
- Motivation & instruction – tailored oral hygiene education
- Removal of biofilm, stains, and young calculus using air polishing
- Subgingival biofilm removal in periodontal pockets
- Removal of residual hard calculus with ultrasonic instruments
- Control/recall – evaluation and maintenance planning
What are the advantages of GBT?
GBT is minimally invasive, patient-friendly, and effective for managing periodontal disease and maintaining implants.
