Absorption of heat cured acrylic resin reinforced with rice husk nanoceluloce (Oryza Sativa L.)

Vena O Hartini,Dian Na Imam,Ryana B Purnama,Setiadi W Logamarta,Haris B Widodo

doi:10.15562/jdmfs.v6i3.1138

Vena O Hartini, Dian Na Imam + Show 3 more

Open Access

https://doi.org/10.15562/jdmfs.v6i3.1138

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Abstract

Objective: This study aims to determine chitosan as a coupling agent and the Polymethyl methacrylate (PMMA) denture base's water absorption with nano cellulose rice husk as reinforcement material. Material and Methods: This type of research is an experimental laboratory. The research sample consisted of four groups, each group consisting of 8 samples selected by simple random. The TI, T2, T3, and Control groups were PMMA with 1%, 2%, three chitosan, and without chitosan. This study uses two kinds of tests, water absorption test and Scanning Electron Microscope (SEM).Results: The heat cured acrylic resin group with 3% chitosan had the lowest water absorption 15.54 ±3.48 µm/mm3. The heat cured acrylic resin group without chitosan had the lowest water absorption 32.85 ± 4.82 µm/mm3. There was a significant difference in the water absorption test (p<0.05). The SEM showed the homogenous image but still had porosity and agglomeration.Conclusion: This study concludes that addition of chitosan in base denture acrylic has decreased water absorption.

Highlights

Tooth loss can cause problems in masticatory function, speech, facial structure, and facial aesthetics.[1]
Acrylic resin is a non-metallic denture base material that has been used since 1935.Heat cured acrylic resinis an acrylic heat polymerization resin consisting of powder as polymethyl methacrylate (PMMA) and liquid methyl methacrylate (MMA).[3]
In the results of this study, the group with the lowest water absorption was in the group with the addition of 3% chitosan and 1% nanocellulose and the highest in the group with the addition of 1% nanocellulose and without the addition of chitosan

Summary

Introduction

Tooth loss can cause problems in masticatory function, speech, facial structure, and facial aesthetics.[1] Dentureis needed to correct these deficiencies. The denture base is the part of the denture that is attached to the soft tissue. Denture base materials can be made of metal and non-metal. The material often used in fabrication of denture base material is acrylic resin.[2]. Acrylic resin is a non-metallic denture base material that has been used since 1935.Heat cured acrylic resinis an acrylic heat polymerization resin consisting of powder as polymethyl methacrylate (PMMA) and liquid methyl methacrylate (MMA).[3]

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Conclusion