Measurement and comparison of retention load values between three implant overdenture attachment systems
department or school: Dentistry, Faculty of
data provider: DSpace
degree campus: UBCV
creator: Alqarni, Mohammed
issued: 2021-10-04T22:28:59Z
issued: 2021
related degree: Master of Science - MSc
degree grantor: University of British Columbia
description: Objective: To measure retention load values for Locator Legacy, Locator R-Tx and Novaloc attachment systems after two thousand multiple pulls test, and compare the retention load values at initial cycles, in addition to cycles equivalent to six months, one year and a year and a half between the three groups. Material and methods: Three acrylic models were fabricated. Two implants were embedded into each block. Three attachment systems were tested in this study: Locator Legacy, Locator R-Tx and Novaloc attachments. Using an Electrodynamic Fatigue Test Machine (EFTM), two thousand multiple pulls test was performed at a crosshead speed of 50.8mm/min. Retention values were recorded for each of the two thousand cycles. One-way analysis of variance was carried out to compare the difference in retention load values between groups LL, R, NV at cycle numbers 1, 10, 548, 1096 and 1644. A post-hoc Tukey’s test was subsequently used to identify the difference between the groups. Results: The results revealed a statistically significant difference between the three groups at all the cycles (p<.001). Further, the post-hoc Tukey’s test analysis showed a significantly higher retention values for Locator Legacy and R-Tx at the initial cycles, while R-Tx and Novaloc are significantly higher at cycles 548 and 1096. There was no statistical significance difference between Locator Legacy and R-Tx at cycles 1 and 10; and between R-Tx and Novaloc at cycles 548 and 1096. Furthermore, the Novaloc group was significantly higher than both groups at cycle 1644. Conclusion: It can be concluded that LL and R groups showed an initial large reduction in retention values, 44.5% and 41.1%, respectively, from cycle 1 to cycle 10. NV and R groups exhibited significantly higher retention load values at cycles 548 and 1096 when compared to LL group. The NV group had the highest retention load values at the completion of the tested number of cycles in comparison to LL and R groups. The Novaloc attachment…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/79884
note: Measurement and Comparison of Retention Load Values between Three Implant Overdenture Attachment Systems by Mohammed Alqarni B.D.S, King Saud University, 2014 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in THE FACULTY OF GRADUATE AND POSTDOCTORAL STUDIES (Craniofacial Science) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) August 2021 © Mohammed Alqarni, 2021 ii The following individuals certify that they have read, and recommend to the Faculty of Graduate and Postdoctoral Studies for acceptance, a thesis entitled: Measurement and Comparison of Retention Characteristics between Three Implant Overdenture Attachment Systems submitted by Mohammed Alqarni in partial fulfillment of the requirements for the degree of Master of Science in Craniofacial Science Examining Committee: Dr. Vincent Lee, Assistant Professor of Teaching, Department of Oral Health Sciences, UBC Supervisor Dr. Caroline Nguyen, Associate Professor, Department of Oral Health Sciences, UBC Supervisory Committee Member Dr. Ross Bryant, Assistant Professor, Department of Oral Health Sciences, UBC Supervisory Committee Member Dr. Rana Tarzemany, Assistant Professor of Teaching, Department of Oral and Biomedical Sciences, UBC Additional Examiner Additional Supervisory Committee Members: Dr. Ricardo Carvalho, Professor, Department of Oral and Biomedical Sciences, UBC Supervisory Committee Member iii Abstract Objective: To measure retention load values for Locator Legacy, Locator R-Tx and Novaloc attachment systems after two thousand multiple pulls test, and compare the retention load values at initial cycles, in addition to cycles equivalent to six months, one year and a year and a half between the three groups. Material and methods: Three acrylic models were fabricated. Two implants were embedded into each block. Three attachment systems were tested in this study: Locator Legacy, Locator R-Tx and Novaloc attachments. Using an Electrodynamic Fatigue Test …
has type: Thesis/Dissertation
date issued: 2021-11
is shown at: 10.14288/1.0402418
language: eng
degree discipline: Craniofacial Science
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
contributor: Lee, Vincent
type: Text
identifier URI: http://hdl.handle.net/2429/79884