A Novel Apparatus to Standardise the Polishing Protocol to Achieve Different Roughness of Titanium and Zirconia Disc Surfaces

No Thumbnail Available
File version
Author(s)
Elangovan, Gayathiri
Ipe, Deepak
Reher, Peter
Figueredo, Carlos M
Cameron, Andrew
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
2023
Size
File type(s)
Location
License
Abstract

PURPOSE: This study aimed to propose and evaluate standardised polishing protocols for in vitro experiment using a custom-made apparatus under controlled force to create consistent surface roughness on titanium and zirconia disks. METHODS: A total of 160 discs were manufactured with a diameter of 10mm, 80 titanium (Ti), and 80 zirconium oxide (Zr). Specimens were categorised into 2 groups: controlled force (CF) and without controlled force (WCF). Specimens in the CF group were polished with a custom apparatus incorporating a tension gauge on the Ti and Zr disc surfaces to achieve consistent roughness. The WCF was polished without the use of a tension gauge. Each group had 4 subgroups (10 disks in each): control/machined (C) with no polishing, rough (R), smooth (S) and very smooth (VS). The subgroups were processed using a sequence of diamond-impregnated polishing burs and polishing paste. RESULTS: CF group showed consistent surface roughness and a gradual decrease in surface roughness. Control (Ra=6.5±0.03µm) in Ti and (Ra=5.4±0.04µm) in Zr; R (Ra=3.5± 0.06µm) in Ti and (Ra=3.2± 0.07 µm) in Zr; S (Ra=1.5±0.04µm) in Ti and (Ra=1.1±006µm) in Zr; VS (Ra=0.05± 0.002µm) in Ti and (Ra=0.02±0.005µm) in Zr. There were significant differences for R, S, and SV under CF and WCF in Ti and Zr surfaces. CONCLUSION: The specimens polished under control force produced significantly more uniform surface roughness than those polished without controlled force and were produced with a higher degree of consistency.

Journal Title
The International Journal of Prosthodontics
Conference Title
Book Title
Edition
Volume
Issue
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
Item Access Status
Note
This publication has been entered in Griffith Research Online as an advanced online version.
Access the data
Related item(s)
Subject
Dentistry
Persistent link to this record
Citation
Elangovan, G; Ipe, D; Reher, P; Figueredo, CM; Cameron, A, A Novel Apparatus to Standardise the Polishing Protocol to Achieve Different Roughness of Titanium and Zirconia Disc Surfaces, The International Journal of Prosthodontics, 2023
Collections