Comparative Evaluation of the Anti-Plaque and Anti-Gingivitis Effects of Nanobiofusion Gingival Gel (NBF), Placebo Gel, and Commercial Toothpaste

The goal of this clinical trial is to learn if Nanibiofusion Gingival Gel (NBF) is able to reduce dental plaque and gum inflammation in adults. The trial will also check whether daily use of NBF Gingival Gel causes tooth staining over time. The main questions it aims to answer are: * Does NBF Gingival Gel reduce dental plaque (a sticky film of bacteria on teeth)? * Does NBF Gingival Gel reduce gum inflammation? * Does NBF Gingival Gel cause tooth staining? * Are participants satisfied with the product's taste, texture, and ease of use? Researchers will compare NBF gel to a placebo gel (a look-alike gel that contains no active ingredients), and Colgate toothpaste (a standard fluoride toothpaste). This will show if NBF gel is able to reduce plaque and gum inflammation. Participants will: * Be assigned to one of three groups and use their assigned product twice daily for 3 months. * Receive a professional teeth cleaning at the start of the study, before using any product. * Visit the clinic at baseline and at 1, 2, and 3 months for plaque, gum health, and staining checks. * Receive a complimentary professional cleaning at the final visit to remove any staining. * Rate the product's taste, texture, and ease of use.

Inclusion Criteria: * Participants aged 17 years or older * At least 28 natural teeth, excluding third molars * Systemically healthy * Clinical diagnosis of gingival and periodontal health: bleeding on probing \< 10%, with no attachment loss on any tooth. Exclusion Criteria: * Ongoing orthodontic appliances * Use of antibiotics or anti-inflammatory drugs in the past 3-month * Use of any oral care products (antiseptic mouthrinses, prescription gels) in the past month * History of allergy to propolis or ingredients of the NBF gel * Pregnancy or lactation * Professional dental cleaning within the past 3 months. * Patients with active Class II or Class V carious lesions, over-contoured crowns, overhanging restorations, or any other condition affecting plaque accumulation.