Moldable setting time evaluation between sodium alginate and bovine gelatine of glutinous rice mixture as dental putty materials

11th Joint Conference on Chemistry in Conjunction with the 4th Regional Biomaterials Scientific Meeting

材料科学;化学;生物科学

Takarini, V.^1 ; Hasratiningsih, Z.^1 ; Karlina, E.^1 ; Febrida, R.^1 ; Asri, L.A.T.W.^2 ; Purwasasmita, B.S.^2

Department of Dental Materials Science and Technology, Faculty of Dentistry, University of Padjadjaran, Sekeloa Selatan 1, Bandung

40132, Indonesia^1

Advanced Material Processing Laboratory, Engineering Physics Study Program, Institute of Technology Bandung, Ganesha 10, Bandung

40132, Indonesia^2

关键词: Commercial products;    Compression set;    Crosslink agents;    Elastomeric materials;    Gelling agents;    Glutinous rice;    Setting time;    Tooth structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/172/1/012061/pdf
DOI  :  10.1088/1757-899X/172/1/012061

来源: IOP

【 摘 要 】

Putty elastomeric material is a viscous, moldable material that can be used as a dental impression to record and duplicate the tooth structure. Commercially available putty materials are hardly found in the Indonesian market. The aim of this work is to develop an alternative putty dental material from glutinous rice with two different gelling agents; sodium alginate and bovine gelatine. A commercially putty material was used as a control. The length of time required for the putty materials to set (setting time) was evaluated with compression set test. The result showed that sodium alginate and bovine gelatine gelling agents resulted in moldable putty materials that comparable to the commercial product. Glutinous rice mixed with sodium alginate gelling agent demonstrated longer setting time (more than 1 hours) compared to bovine gelatine (6 minutes). These may occur due to heat treatment applied to the bovine gelatine, while sodium alginate mixture has a chemical reaction since CaCl2crosslink agent had been added to the mixture. Glutinous rice with bovine gelatine mixture is a promising candidate to be used as a dental putty material.