In Situ Gel: A Novel Approach for Periodontitis Management

Periodontitis is a chronic inflammatory disease that affects the supporting structures of the teeth, leading to tissue destruction and tooth loss if left untreated. Conventional treatments for periodontitis, such as scaling and root planing , may be limited in effectiveness, particularly in cases of advanced disease or in the management of infections within deep periodontal pockets. In recent years, in situ gel systems have emerged as a promising novel approach for the local delivery of therapeutic agents directly to the site of infection, offering numerous advantages over traditional methods. These gels are unique in their ability to transition from a liquid to a gel upon contact with the oral cavity, providing a sustained release of antibiotics or anti-inflammatory drugs, thereby enhancing treatment outcomes and minimizing systemic side effects. This review explores the potential of in situ gels in the management of periodontitis, focusing on their composition, mechanism of action, and efficacy in delivering active pharmaceutical ingredients. The review also highlights various biocompatible polymers used in the formulation of in situ gels, and their role in ensuring controlled drug release and therapeutic efficacy. Additionally, challenges related to patient compliance, gel stability, and scalability for clinical application are discussed. Overall, in situ gels represent a promising therapeutic strategy in the localized treatment of periodontitis, offering a targeted, effective, and minimally invasive alternative to conventional periodontal therapies. The characterisation of oral in situ gels, encompassing several evaluations including drug content study, pH & viscosity determination, texture analysis, spreadibility, gel strength, gelling time, sterility testing, in-vitro drug release study, stability study, etc., is finally summarized in this review. Experimental data indicates that in situ gel forming systems may be helpful in treating a number of common oral cavity illnesses, according to the reviewed literature. Clinical studies should be the main focus of future research if the in situ gel is to significantly reduce periodontitis.