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Micro-fine finishing of a feldspar porcelainfor dental prostheses

Song, Xiao-Fei; Yin, Ling; Han, Yi-Gang; Wang, Hui

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Intraoral adjustment of ceramic prostheses involving micro-finishing using diamond burs is a critical procedure in restorative dentistry because the durability of a restoration depends on the finishing process and quality. Force, energy and surface integrity in micro-fine finishing of a feldspar porcelain versus operational parameters were investigated using a 2-DOF (two-degrees-of-freedom) high-speed dental handpiece and a fine diamond bur of 20-30 μm grits. The tangential and normal forces...[Show more]

dc.contributor.authorSong, Xiao-Fei
dc.contributor.authorYin, Ling
dc.contributor.authorHan, Yi-Gang
dc.contributor.authorWang, Hui
dc.date.accessioned2015-12-10T22:34:48Z
dc.identifier.issn1350-4533
dc.identifier.urihttp://hdl.handle.net/1885/56022
dc.description.abstractIntraoral adjustment of ceramic prostheses involving micro-finishing using diamond burs is a critical procedure in restorative dentistry because the durability of a restoration depends on the finishing process and quality. Force, energy and surface integrity in micro-fine finishing of a feldspar porcelain versus operational parameters were investigated using a 2-DOF (two-degrees-of-freedom) high-speed dental handpiece and a fine diamond bur of 20-30 μm grits. The tangential and normal forces were measured as being significantly small in the ranges 0.18-0.35 N and 0.22-0.59 N, respectively. High specific finishing energy of 110-2523 J/mm3 was observed in material removal, particularly when decreasing either the depth of cut or the feed rate. Scanning electron microscopy observations indicated that the surfaces generated were mainly due to ductile flow; however, microfractures also occurred in porcelain. Surface roughness was measured as 0.43-0.74 μm in terms of arithmetic mean value (Ra), decreasing with the depth of cut, but insignificantly changing with the feed rate (ANOVA, P > 0.05). Recommendations for clinical practice are made on the basis of our testing results.
dc.publisherElsevier
dc.sourceMedical Engineering and Physics
dc.subjectKeywords: Dental equipment; Diamonds; Feldspar; Health; Law enforcement; Porcelain; Prosthetics; Reliability; Silicate minerals; Ceramic prostheses; Dental handpiece; Feldspar porcelain; Fine finishing; Finishing energy; Finishing force; Finishing processes; High s Feldspar porcelain; Finishing energy; Finishing force; Micro-fine finishing; Surface morphology
dc.titleMicro-fine finishing of a feldspar porcelainfor dental prostheses
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolumeIn Press Corrected Proof , Available online 26 Nov
dc.date.issued2007
local.identifier.absfor091201 - Ceramics
local.identifier.ariespublicationu4251866xPUB348
local.type.statusPublished Version
local.contributor.affiliationSong, Xiao-Fei, Tianjin University
local.contributor.affiliationYin, Ling, College of Engineering and Computer Science, ANU
local.contributor.affiliationHan, Yi-Gang, Tianjin University
local.contributor.affiliationWang, Hui, Tianjin University
local.description.embargo2037-12-31
local.bibliographicCitation.issueJJBE-1344
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage9
local.identifier.doi10.1016/j.medengphy.2007.10.005
local.identifier.absseo920113 - Oro-Dental Disorders
dc.date.updated2015-12-09T10:23:09Z
local.identifier.scopusID2-s2.0-50249144105
CollectionsANU Research Publications

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