[PDF] Top 20 Wear of the implant connection with zirconia and titanium abutments

... meeting the needs of most resistant prostheses [7]. The literature on the mechanical behaviour of zirconia samples is scarce, but some point out towards similar success rates for ... See full document

... Kalus and Bessing developed a rating scale for evaluation of the fit of a ...study, the prosthesis was seated on abutments and tightened with one screw in ... See full document

... In the world the number of the aged people is rapidly ...increase of aged population leads to replacing failed tissue with artificial instruments, implants, made of ... See full document

... Despite the successful clinical outcomes of Brånemark (1), some problems in implant therapy are still considered ...fracture of its abutment screws and prosthetic retaining screw are ... See full document

... zirconia abutments have been manufactured with better aesthetic ...However, zirconia abutments are harder than titanium implants; therefore, they could wear the ... See full document

... mechanical and chemical stress, generating wear debris dis- semination ...properties, the mechanical effect includes contact pressure, sliding velocity, lubrication while chemical effects originates ... See full document

... whether the use of these custom-made abutments would result in fit of the abutment to the implant that could be comparable to that achieved with use of ... See full document

... metals and will quickly react to form oxide layer when exposed to the ...atmosphere. The compact oxide layer will form easily at the surface, so that they have excellent corrosion resistance ... See full document

... “adhesive wear”. This occurs as a result of “pullout” points of the materials and the transport of fragmented particles of the implant or ...increases ... See full document

... burnout abutments cast with nickel chromium alloy, abutments cast with cobalt chromium ...alloy. Implant-abutments systems are polished and shaped, after ...cleaning. ... See full document

... line), implant-supported prostheses dependon the ideal positioning of the implant and prosthetic ...implants and prosthetic abutments are generally constructed in ... See full document

... implants and abutments in implant-supported fixed partial prosthesis is essential in the rehabilitation of posterior mandible ...evaluate the influence of cantilever ... See full document

... degree of distortion (shrinkage or enlargement) of the image radiographically imaged tooth, creating problems when evaluating small changes of the bone crest (Hermann, ...Larheim ... See full document

... stimuli and observe a stimulus dependency in the balance of excitation and inhibition contributed via the interhemi- spheric connection [ 76 ...]. With high contrast ... See full document

... to the research delimitations and variable types, repeated measures analysis of variance was ...(in the original state, after casting and after porcelain) were the dependent ... See full document

... attributed the relatively slow grain growth in Y-TZP to small variations in yttrium content between adjacent tetragonal grains and within tetragonal ...As the unit cell size is dependent on ... See full document

... etching, and surface fluorination have been proposed for surface conditioning (Kosmac et ...Özcan and Vallittu 2003; Curtis et ...Karakoca and Yılmaz 2009; Cavalcanti et ...Subaşı and İnan ... See full document

... evaluate and compare the wear behavior of three different ceramic systems; monolithic zirconia, lithium di-silicate and nano-fluorapatite glass ceramic with two finishing ... See full document

... i.e. the speeds were very low mm/s and the contact stresses very ...At the end of test, the normal stresses were between and GPa, which depends on the material, ... See full document

... boards and with the same nominal thickness of 18 ...screws of the 5 mm in diameter were inserted in the edge of the ...mm and 3,0 mm and ... See full document