Biomaterial Database

[Preparation and stability assessment of a new resin root canal filling material]. 2007

Zheng-mei Lin, and Jun-qi Ling, and Fang Liu, and Yang Hu, and Yu-tao Jian

Department of Cariology and Endodontology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China.

OBJECTIVE To synthesize a new resin root canal filling material (NRCFM) and evaluate its stability in water and artificial saliva. METHODS The new root canal filling material was made of thermoplastic elastomer (TPE), ethylene vinyl acetate (EVA) and activity fillers. The NRCFM's stability in water and artificial saliva with different pH values was assessed using gravimetric analysis, ICP and FE-SEM. RESULTS NRCFM1 and NRCFM2 were successfully made. Gravimetric evaluation showed that the changes in mass over 30 days different solution medium for NRCFM1 and NRCFM2 were comparable to that of GP (P > 0.05) and significantly different from Resilon (P < 0.001). ICP showed slight changes in Si concentration for NRCFM1 and NRCFM2, Zn for GP, Na and Si for Resilon in the alkaline artificial saliva (pH 9.5). GP and Resilon showed release of Zn and Na respectively in distilled water whereas NRCFM1 and NRCFM2 were stable. FE-SEM micrographs showed that there were slight changes on the surface topography of NRCFM1 and NRCFM2. CONCLUSIONS The new resin root canal filling material NRCFM1 and NRCFM2 had good stability in different experimental solutions.

UI	MeSH Term	Description	Entries
D008422	Materials Testing	The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.	Biocompatibility Testing,Biocompatible Materials Testing,Hemocompatibility Testing,Testing, Biocompatible Materials,Testing, Hemocompatible Materials,Hemocompatibility Testings,Hemocompatible Materials Testing,Materials Testing, Biocompatible,Materials Testing, Hemocompatible,Testing, Biocompatibility,Testing, Hemocompatibility,Testing, Materials,Testings, Biocompatibility
D003188	Composite Resins	Synthetic resins, containing an inert filler, that are widely used in dentistry.	Composite Resin,Resin, Composite,Resins, Composite
D004355	Drug Stability	The chemical and physical integrity of a pharmaceutical product.	Drug Shelf Life,Drugs Shelf Lives,Shelf Life, Drugs,Drug Stabilities,Drugs Shelf Life,Drugs Shelf Live,Life, Drugs Shelf,Shelf Life, Drug,Shelf Live, Drugs,Shelf Lives, Drugs
D012387	Root Canal Filling Materials	Materials placed inside a root canal for the purpose of obturating or sealing it. The materials may be gutta-percha, silver cones, paste mixtures, or other substances. (Dorland, 28th ed, p631 & Boucher's Clinical Dental Terminology, 4th ed, p187)	Root Canal Filling Material,Root Canal Sealants,Sealants, Root Canal,Canal Sealant, Root,Canal Sealants, Root,Root Canal Sealant,Sealant, Root Canal
D012389	Root Canal Obturation	Phase of endodontic treatment in which a root canal system that has been cleaned is filled through use of special materials and techniques in order to prevent reinfection.	Endodontic Obturation,Canal Obturation, Root,Canal Obturations, Root,Endodontic Obturations,Obturation, Endodontic,Obturation, Root Canal,Obturations, Endodontic,Obturations, Root Canal,Root Canal Obturations
D012464	Saliva, Artificial	A solution used for irrigating the mouth in xerostomia and as a substitute for saliva.	Artificial Saliva