Advancements and Scientific Partnerships in the Application of Polysaccharides in Oral Formulations: A Bibliometric Analysis and Review

The limitations of conventional drug delivery methods, such as systemic side effects and poor absorption, highlight the need for safer and more effective alternatives. Polysaccharides, due to their biocompatible, biodegradable, and mucoadhesive properties, have shown promise in formulations for the oral cavity, particularly in localized delivery systems and tissue regeneration. This study aims to conduct a bibliometric analysis to characterize the scientific output on the use of polysaccharides in the oral cavity, identifying trends, international collaborations, and research gaps.

A Web of Science search was conducted in January 2025 using keywords related to polysaccharides and mucosal adhesion. The analysis included original articles published in English between 2015 and 2024. Bibliometric data and study characteristics were extracted and analyzed, focusing on study types, formulation types, and international collaborations.

The analysis included 66 articles with 1144 citations. In vitro studies were predominant, while clinical trials were lacking. Chitosan and alginate emerged as the most commonly used polysaccharides, with gels and hydrogels being the most prevalent formulations. International collaborations involved 28 countries, with China, Brazil, and Italy standing out in terms of scientific production.

The results highlight important advancements in the use of polysaccharides for oral cavity formulations, particularly in gels and hydrogels. However, the predominance of in vitro studies and the lack of clinical trials suggest limitations for translating these findings into clinical practice. The strong performance of countries such as China, Brazil, Italy, Spain, and Norway underscores the relevance of international collaborations and the global potential of this topic.

The increasing scientific output reflects the growing interest in the use of polysaccharides for oral health applications. Despite these advancements, critical gaps remain, such as the lack of clinical studies. Future research should prioritize translational studies, personalized therapies, and the sustainable development of biomaterials.