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dc.contributor.authorOtsubo, Yukoen_US
dc.date.accessioned2018-01-24T14:24:01Z
dc.date.issued2017
dc.identifier.urihttps://hdl.handle.net/2144/26341
dc.description.abstractThe objective of this study was to compare effect of surface treatment and fatigue to the retention of zirconia crowns luted to two different heights of titanium abutments. Thirty titanium base 3.5 mm (n = 15) and 5.5 mm in height (n = 15) and thirty zirconia crowns were used. Group A (n = 10), 3.5-mm-height titanium base with no surface treatment; Group B (n = 5), 3.5-mm-height titanium base with surface treatment; Group C (n = 5), 3.5-mm-height titanium base with no surface treatment with fatigue test; Group D (n = 5), 3.5-mm-height titanium base with surface treatment and fatigue test. The identical group allocation was utilized to 5.5-mm-height titanium base groups, Group E, F, G and H respectively. All zirconia crowns and titanium abutments of the groups with surface treatment were particle abraded with 50 μm alumina. All specimens were subjected to a pull-out test. Data were analyzed with ANOVA and the Tukey HSD test. Pull-out retention forces for each group were: Group A: 288 ± 97.5 N, Group B: 198.71 ± 82.94 N, Group C: 537.61 ± 80.13 N, Group D: 600.11 ± 27.23 N, Group E: 240.68 ± 54.33 N, Group F: 270.92 ± 16.43 N, Group G: 707.03 ± 32.30 N, and Group H: 831.19 ± 55.50 N. Particle abrasion of the titanium base significantly increased zirconia crown retention. The height of the titanium base had a significant influence on retention force in particle-abraded groups. The fatigue test did not decrease retention force.en_US
dc.language.isoen_US
dc.subjectDentistryen_US
dc.subjectCementing strengthen_US
dc.subjectFatigueen_US
dc.subjectImplant abutmentsen_US
dc.subjectParticle abrasionen_US
dc.subjectZirconiaen_US
dc.subjectProsthesis retentionen_US
dc.titleEffect of surface treatment and fatigue on retention strength of titanium abutment to zirconiaen_US
dc.typeThesis/Dissertationen_US
dc.date.updated2017-10-25T18:35:05Z
dc.description.embargo2018-09-26T00:00:00Z
etd.degree.nameMaster of Science in Designen_US
etd.degree.levelmastersen_US
etd.degree.disciplineRestorative Sciences & Biomaterialsen_US
etd.degree.grantorBoston Universityen_US


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