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Wear of artificial denture teeth by use of toothbrushes. Part 1: Abrasive wear of anterior teeth. 1990

Y Satoh, and K Ohtani, and K Maejima, and M Morikawa, and M Matsuzu, and E Nagai, and H Toyoma, and M Ohwa, and K Ohki, and M Kaketani
Department of Partial Denture Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan.

High-strength denture teeth (HS teeth) were developed in order to improve the hardness and wear resistance of conventional plastic denture teeth (PL teeth), while retaining their feature of easy occlusal adjustment. The objective of this study was to evaluate the abrasive wear resistance of HS teeth. We conducted wear tests and measured surface roughness using six types of anterior artificial teeth, i.e., three types of HS teeth and three types of PL teeth, the latter serving as the control. The results of the toothbrush abrasion test revealed that the HS teeth had about 5 times greater wear resistance than the PL teeth. It was also found that the type of artificial teeth and the number of abrasive wear-testing strokes had a significant (P less than 0.05) influence on the surface roughness of artificial teeth.

UI MeSH Term Description Entries
D008855 Microscopy, Electron, Scanning Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY. Scanning Electron Microscopy,Electron Scanning Microscopy,Electron Microscopies, Scanning,Electron Microscopy, Scanning,Electron Scanning Microscopies,Microscopies, Electron Scanning,Microscopies, Scanning Electron,Microscopy, Electron Scanning,Microscopy, Scanning Electron,Scanning Electron Microscopies,Scanning Microscopies, Electron,Scanning Microscopy, Electron
D010969 Plastics Polymeric materials (usually organic) of large molecular weight which can be shaped by flow. Plastic usually refers to the final product with fillers, plasticizers, pigments, and stabilizers included (versus the resin, the homogeneous polymeric starting material). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Plastic
D012117 Resins, Synthetic Polymers of high molecular weight which at some stage are capable of being molded and then harden to form useful components. Dental Resins,Dental Resin,Resin, Dental,Resin, Synthetic,Resins, Dental,Synthetic Resin,Synthetic Resins
D003799 Dental Stress Analysis The description and measurement of the various factors that produce physical stress upon dental restorations, prostheses, or appliances, materials associated with them, or the natural oral structures. Analyses, Dental Stress,Analysis, Dental Stress,Stress Analyses, Dental,Stress Analysis, Dental,Dental Stress Analyses
D006244 Hardness The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure this property. Hardnesses
D013314 Stress, Mechanical A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area. Mechanical Stress,Mechanical Stresses,Stresses, Mechanical
D013499 Surface Properties Characteristics or attributes of the outer boundaries of objects, including molecules. Properties, Surface,Property, Surface,Surface Property
D014093 Tooth, Artificial A fabricated tooth substituting for a natural tooth in a prosthesis. It is usually made of porcelain or plastic. Artificial Teeth,Artificial Tooth,Teeth, Artificial
D014099 Toothbrushing The act of cleaning teeth with a brush to remove plaque and prevent tooth decay. (From Webster, 3d ed) Toothbrushings

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