Effects of six surface treatment methods on the surface roughness of a low-fusing and an ultra low-fusing feldspathic ceramic material

Journal of Prosthodontics : Official Journal of the American College of Prosthodontists
Mehmet DalkizBedri Beydemir

Abstract

The purpose of this in vitro study was to determine the effects of six surface treatment methods on the surface roughness of two feldspathic ceramic materials. One hundred twenty metal discs were cast (Remanium CS). A low-fusing feldspathic ceramic (Vita Omega 900) was fired onto 60 metal discs, and an ultra low-fusing feldspathic ceramic (Finesse) was fired onto the other 60 metal discs. Six surface treatment methods were selected: (1) autoglazing (AUG), (2) overglazing (OVG), (3) polishing (POL), (4) fine diamond disc grinding + polishing + autoglazing (FDPA), (5) coarse diamond disc grinding + polishing + autoglazing (CDPA), (6) polishing + autoglazing (PA). Omega specimens were assigned to six experimental groups representing six surface treatment methods (Om-AUG, Om-OVG, Om-POL, Om-FDPA, Om-CDPA, Om-PA) (n = 10). Finesse specimens were also assigned to six experimental groups (Fn-AUG, Fn-OVG, Fn-POL, Fn-FDPA, Fn-CDPA, Fn-PA) (n = 10). Treated ceramic surfaces were examined by means of profilometry and transmission electron microscopy. In Omega groups mean roughness values ranged as follows: group Om-AUG = Om-POL > Om-OVG > Om-CDPA = Om-FDPA > Om-PA (p < 0.001). No significant difference was found between groups Om-AUG/Om-P...Continue Reading

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Citations

Dec 17, 2014·European Journal of Dentistry·Haroon Rashid
Jul 16, 2015·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Dennis J Fasbinder, Gisele F Neiva
Apr 10, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Alaa H A SabrahMarco C Bottino
Apr 2, 2014·Journal of Prosthodontic Research·Tânia Mara da SilvaEduardo Galera da Silva
Dec 10, 2015·Brazilian Dental Journal·Tânia Mara da SilvaClóvis Pagani
Mar 29, 2014·Journal of Applied Oral Science : Revista FOB·Henrique Caballero SteinhauserRoberta Tarkany Basting
Sep 10, 2019·The Journal of Advanced Prosthodontics·Lucas Campagnaro MacielAnuar Antônio Xible
Jun 2, 2021·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Camila S SampaioGilbert Jorquera

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