Utilização de quitosano em medicina dentária conservadora

: uma revisão sistemática

Abstract

Context: Restorative materials play a crucial role in preventing cross-infection, requiring the ability to withstand masticatory forces. Additionally, they must prevent micro-leakage to protect the pulp in vital teeth or the filled root canal system in endodontically treated teeth. Objective: This study aims to systematically review the published scientific evidence regarding the application of chitosan in Conservative Dentistry. Materials and Methods: A systematic literature review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Searches were performed in the scientific databases PubMed and Scopus using the Boolean operators AND and OR, resulting in a search query composed exclusively of MeSH terms: (<chitosan=) AND (<dentistry=) OR (<oral health=) OR (<dental materials=). The selection of studies was carried out by two independent researchers based on predefined inclusion and exclusion criteria. Results: Six studies met the inclusion criteria and constituted the final corpus for analysis. The findings demonstrate that the incorporation of chitosan in the form of nanoparticles into dentine adhesives, composites, and glass ionomer cement, compared to formulations without chitosan, resulted in enhanced adhesion strength, superior antimicrobial properties, and improved mechanical characteristics. Conclusions: These findings may inform future research regarding the integration of chitosan into restorative materials, an area that has not been extensively explored. This systematic review also provides insights that may facilitate further investigations into the pre-treatment of carious dentin with chitosan prior to restoration.

Date of Award	10 Oct 2024
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Ana Cláudia Morais de Moura Teles de Sampaio (Supervisor) & Rita Noites (Co-Supervisor)