Matches in SemOpenAlex for { <https://semopenalex.org/work/W4241833620> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W4241833620 endingPage "298" @default.
- W4241833620 startingPage "287" @default.
- W4241833620 abstract "We developed a new titanium spray technique using an inert gas shielded arc spray (titanium arc spray). Hydroxyapatite (HA)-coating can be applied to the implant without any surface pore obstruction after the rough surface is made by this technique. Scanning electron microscopy (SEM) of various porous implant surfaces after HA-coating revealed that the bead and fiber metal-coated implants had either a pore obstruction or an uneven HA-coating. On the other hand, the titanium arc sprayed implant demonstrated an even HA-coating all the way to the bottom of the surface pore. In the first set of animal experiments (Exp. 1), the interfacial shear strength to bone of four kinds of cylindrical Ti-6A1-4V (Ti) implants were compared using a canine transcortical push-out model 4 and 12 weeks after implantation. The implant surfaces were roughened by titanium arc spray (group A–C) and sand blasting (group D) to four different degrees (roughness average, Ra = group A: 56.1, B: 44.9, C: 28.3, D: 3.7 μm). The interfacial shear strength increased in a surface roughness-dependent manner at both time periods. However, the roughest implants (group A) showed some failed regions in the sprayed layers after push-out test. In the second set of animal experiments (Exp. 2), four kinds of Ti implants; HA-coated smooth Ti (sHA) with Ra of 3.4 μm, bead-coated Ti (Beads), titanium arc sprayed Ti (Ti-spray) with Ra of 38.1 μm and HA-coated Ti-spray (HA + Ti-spray) with Ra of 28.3 μm were compared using the same model as that in Exp. 1. The interfacial shear strength of HA + Ti-spray was significantly greater than that of sHA and Beads at both time periods, and that of Ti-spray at 4 weeks. Although a histological examination revealed that HA-coating enhanced bone ingrowth, sHA showed the lowest shear strength at both time periods. SEM after pushout test showed that sHA consistently demonstrated some regional failure at the HA-implant substrate interface. HA + Ti-spray had many failed regions either at the HA-bone interface or within the bone tissue rather than at the HA-implant substrate interface. These results suggested that the HA-coated smooth surfaced implants had a mechanical weakness at the HA-substrate interface. Therefore, HA should be coated on the rough surfaced implants to avoid a detachment of the HA-coating layer from the substrate and thus obtain a mechanical anchoring strength to bone. HA-coating on this new type of surface morphology may thus lead to a solution to the problems of conventional HA-coated and porous-coated implants. © 1997 John Wiley & Sons, Inc." @default.
- W4241833620 created "2022-05-12" @default.
- W4241833620 creator A5002669324 @default.
- W4241833620 creator A5027022521 @default.
- W4241833620 creator A5041001838 @default.
- W4241833620 creator A5044888277 @default.
- W4241833620 creator A5048930853 @default.
- W4241833620 creator A5057082651 @default.
- W4241833620 creator A5070442680 @default.
- W4241833620 creator A5090586241 @default.
- W4241833620 date "1997-06-05" @default.
- W4241833620 modified "2023-09-23" @default.
- W4241833620 title "Hydroxyapatite‐coating on titanium arc sprayed titanium implants" @default.
- W4241833620 doi "https://doi.org/10.1002/(sici)1097-4636(19970605)35:3<287::aid-jbm3>3.3.co;2-u" @default.
- W4241833620 hasPublicationYear "1997" @default.
- W4241833620 type Work @default.
- W4241833620 citedByCount "1" @default.
- W4241833620 crossrefType "journal-article" @default.
- W4241833620 hasAuthorship W4241833620A5002669324 @default.
- W4241833620 hasAuthorship W4241833620A5027022521 @default.
- W4241833620 hasAuthorship W4241833620A5041001838 @default.
- W4241833620 hasAuthorship W4241833620A5044888277 @default.
- W4241833620 hasAuthorship W4241833620A5048930853 @default.
- W4241833620 hasAuthorship W4241833620A5057082651 @default.
- W4241833620 hasAuthorship W4241833620A5070442680 @default.
- W4241833620 hasAuthorship W4241833620A5090586241 @default.
- W4241833620 hasConcept C101414908 @default.
- W4241833620 hasConcept C107365816 @default.
- W4241833620 hasConcept C141071460 @default.
- W4241833620 hasConcept C149669645 @default.
- W4241833620 hasConcept C159985019 @default.
- W4241833620 hasConcept C191897082 @default.
- W4241833620 hasConcept C192562407 @default.
- W4241833620 hasConcept C26771246 @default.
- W4241833620 hasConcept C2780026712 @default.
- W4241833620 hasConcept C2781411149 @default.
- W4241833620 hasConcept C2781448156 @default.
- W4241833620 hasConcept C506065880 @default.
- W4241833620 hasConcept C71039073 @default.
- W4241833620 hasConcept C71924100 @default.
- W4241833620 hasConcept C8953137 @default.
- W4241833620 hasConceptScore W4241833620C101414908 @default.
- W4241833620 hasConceptScore W4241833620C107365816 @default.
- W4241833620 hasConceptScore W4241833620C141071460 @default.
- W4241833620 hasConceptScore W4241833620C149669645 @default.
- W4241833620 hasConceptScore W4241833620C159985019 @default.
- W4241833620 hasConceptScore W4241833620C191897082 @default.
- W4241833620 hasConceptScore W4241833620C192562407 @default.
- W4241833620 hasConceptScore W4241833620C26771246 @default.
- W4241833620 hasConceptScore W4241833620C2780026712 @default.
- W4241833620 hasConceptScore W4241833620C2781411149 @default.
- W4241833620 hasConceptScore W4241833620C2781448156 @default.
- W4241833620 hasConceptScore W4241833620C506065880 @default.
- W4241833620 hasConceptScore W4241833620C71039073 @default.
- W4241833620 hasConceptScore W4241833620C71924100 @default.
- W4241833620 hasConceptScore W4241833620C8953137 @default.
- W4241833620 hasIssue "3" @default.
- W4241833620 hasLocation W42418336201 @default.
- W4241833620 hasOpenAccess W4241833620 @default.
- W4241833620 hasPrimaryLocation W42418336201 @default.
- W4241833620 hasRelatedWork W1746331305 @default.
- W4241833620 hasRelatedWork W2294542412 @default.
- W4241833620 hasRelatedWork W2381255896 @default.
- W4241833620 hasRelatedWork W2961893358 @default.
- W4241833620 hasRelatedWork W3002163556 @default.
- W4241833620 hasRelatedWork W3039444908 @default.
- W4241833620 hasRelatedWork W3099298730 @default.
- W4241833620 hasRelatedWork W4303628043 @default.
- W4241833620 hasRelatedWork W80102864 @default.
- W4241833620 hasRelatedWork W2550117558 @default.
- W4241833620 hasVolume "35" @default.
- W4241833620 isParatext "false" @default.
- W4241833620 isRetracted "false" @default.
- W4241833620 workType "article" @default.