Biomaterial Database

Setting characteristics of vinyl-polysiloxane interocclusal recording materials. 2012

Panayiota Hatzi, and Michail Tzakis, and George Eliades

Department of Prosthodontics, School of Dentistry, University of Athens, 2 Thivon St., Athens, Greece. phatzi@dent.uoa.gr

OBJECTIVE To investigate the elemental and molecular composition, curing efficiency, setting shrinkage strain and hardness of vinyl-polysiloxane interocclusal recording materials. METHODS The materials tested were Blu-Mousse Classic/BMC, Exabite II NDS/EXB, Futar Scan/FTS, O-Bite/OBT, Occlufast Rock/OFR, R-Si-Line Metalbite/RMB and Stone Bite/STB. Composition was examined by SEM/EDX and micro-ATR FTIR. Curing efficiency (n: 7) was evaluated by micro-ATR FTIR on unset materials and following 3, 5, and 10 min after mixing. Setting shrinkage strain (%S, n: 7) was evaluated by the bonded-disk method as a function of time up to 10 min after mixing and Shore-D hardness measurements (n: 7) were performed at setting time and after 72h storage at room temperature. Statistical analysis was performed by one-way ANOVA and paired t-tests (a: 0.05). RESULTS All materials were particle-filled vinyl-polysiloxane composites with different elemental composition. C, O and Si were found at highest concentration in all products, whereas Al, Na, Mg, Ti and Ca were additionally detected. Curing efficiency measurements ranked the products in three statistically homogeneous groups (OFR, EXB, OBT>FTS, RMB>BMC, STB) at all time intervals, except OFR which at 5 and 10 min was ranked in the second group. In all products, a statistically significant increase in %S(max) values was found in comparison with %S at setting time. Strain saturation was reached by all materials at different time intervals, except from BMC and OBT. Hardness differences were detected among materials for the same time interval and between time intervals per material. CONCLUSIONS Differences among materials were detected regarding the properties tested, which may imply variations in their clinical performance.

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
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D011145	Polyvinyls	POLYMERS derived from the monomer VINYL COMPOUNDS.	Polyvinyl
D002627	Chemistry, Physical	The study of CHEMICAL PHENOMENA and processes in terms of the underlying PHYSICAL PHENOMENA and processes.	Physical Chemistry,Chemistries, Physical,Physical Chemistries
D003760	Dental Impression Materials	Substances used to create an impression, or negative reproduction, of the teeth and dental arches. These materials include dental plasters and cements, metallic oxide pastes, silicone base materials, or elastomeric materials.	Dental Impression Material,Impression Material, Dental,Impression Materials, Dental,Material, Dental Impression,Materials, Dental Impression
D006244	Hardness	The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure this property.	Hardnesses
D000704	Analysis of Variance	A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.	ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D012833	Siloxanes	Silicon polymers that contain alternate silicon and oxygen atoms in linear or cyclic molecular structures.	Polysiloxane,Polysiloxanes,Siloxane
D013052	Spectrometry, X-Ray Emission	The spectrometric analysis of fluorescent X-RAYS, i.e. X-rays emitted after bombarding matter with high energy particles such as PROTONS; ELECTRONS; or higher energy X-rays. Identification of ELEMENTS by this technique is based on the specific type of X-rays that are emitted which are characteristic of the specific elements in the material being analyzed. The characteristic X-rays are distinguished and/or quantified by either wavelength dispersive or energy dispersive methods.	Particle-Induced X-Ray Emission Spectrometry,Proton-Induced X-Ray Emission Spectrometry,Spectrometry, Particle-Induced X-Ray Emission,Spectrometry, Proton-Induced X-Ray Emission,Spectrometry, X-Ray Fluorescence,X-Ray Emission Spectrometry,X-Ray Emission Spectroscopy,X-Ray Fluorescence Spectrometry,Energy Dispersive X-Ray Fluorescence Spectrometry,Energy Dispersive X-Ray Fluorescence Spectroscopy,Energy Dispersive X-Ray Spectrometry,Energy Dispersive X-Ray Spectroscopy,Particle Induced X Ray Emission Spectrometry,Proton Induced X Ray Emission Spectrometry,Spectrometry, Particle Induced X Ray Emission,Spectrometry, Proton Induced X Ray Emission,Spectrometry, Xray Emission,Wavelength Dispersive X-Ray Fluorescence Spectrometry,Wavelength Dispersive X-Ray Fluorescence Spectroscopy,Wavelength Dispersive X-Ray Spectrometry,Wavelength Dispersive X-Ray Spectroscopy,X-Ray Fluorescence Spectroscopy,Xray Emission Spectroscopy,Emission Spectrometry, X-Ray,Emission Spectrometry, Xray,Emission Spectroscopy, X-Ray,Emission Spectroscopy, Xray,Energy Dispersive X Ray Fluorescence Spectrometry,Energy Dispersive X Ray Fluorescence Spectroscopy,Energy Dispersive X Ray Spectrometry,Energy Dispersive X Ray Spectroscopy,Fluorescence Spectrometry, X-Ray,Fluorescence Spectroscopy, X-Ray,Spectrometry, X Ray Emission,Spectrometry, X Ray Fluorescence,Spectroscopy, X-Ray Emission,Spectroscopy, X-Ray Fluorescence,Spectroscopy, Xray Emission,Wavelength Dispersive X Ray Fluorescence Spectrometry,Wavelength Dispersive X Ray Fluorescence Spectroscopy,Wavelength Dispersive X Ray Spectrometry,Wavelength Dispersive X Ray Spectroscopy,X Ray Emission Spectrometry,X Ray Emission Spectroscopy,X Ray Fluorescence Spectrometry,X Ray Fluorescence Spectroscopy,X-Ray Fluorescence Spectroscopies,Xray Emission Spectrometry
D056246	Chemistry, Analytic	The branch of chemistry dealing with detection (qualitative) and determination (quantitative) of substances. (Grant & Hackh's Chemical Dictionary, 5th ed)	Analytic Chemistry