Surface characterization and bond strengths between Ti-20Cr-1X alloys and low-fusing porcelain

Wu, Shun-Cheng; Ho, Wen Fu; Lin, Cheng; Kikuchi, Hisaji; Lin, Fu; Hsu, Hsueh Chuan

doi:10.4012/dmj.2010-131

Cited by 5 publications

(6 citation statements)

References 20 publications

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“…2). This result points to lower bond strength and parallels earlier findings by Ho et al and Wu et al [13,16]. Observation with an SEM/EDS showed that after the bond strength test, the Ti-5Cr-9Mo alloy had more adherent porcelain on its surface than the c.p.…”

Section: Sem Observationsupporting

confidence: 92%

“…Ho et al and Wu et al reported that the addition of Cr and Mo to Ti alloys could result in high bond strength between metal and porcelain [13,16]. Both research teams found a high percentage of Mo within the oxide layer of the Ti-5Cr alloy, and this Mo content may be essential in establishing a chemical bond between porcelain and alloy.…”

Section: Bond Strengthmentioning

confidence: 91%

“…Ti, Ti-6Al-4V and Ti-5Cr alloys. Remains of porcelain were observed on the surface of the metal substrate, and debonding was noted [13,14,16]. Fig.…”

Section: Sem Observationmentioning

confidence: 96%

“…Ho et al reported that adhesion between titanium and ceramic was enhanced when chromium was added [13], suggesting that chromium can be used as an intermediate layer to improve the bonding of porcelain to titanium [15]. Moreover, Wu et al reported that additions of the elements Cr and Mo significantly improved the bond strength between titanium and ceramic [16].…”

Section: Introductionmentioning

confidence: 95%

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Bond strength of Ti–5Cr based alloys to dental porcelain with Mo addition

Hsu

et al. 2013

Materials & Design

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Section: Sem Observationsupporting

confidence: 92%

Section: Bond Strengthmentioning

confidence: 91%

“…Ti, Ti-6Al-4V and Ti-5Cr alloys. Remains of porcelain were observed on the surface of the metal substrate, and debonding was noted [13,14,16]. Fig.…”

Section: Sem Observationmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 95%

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Bond strength of Ti–5Cr based alloys to dental porcelain with Mo addition

Hsu

et al. 2013

Materials & Design

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“…Although the use of TIG welding in dentistry is uncommon, some studies show the superiority of this technique compared to conventional brazing 18,19 . Several studies have evaluated the bond strength of porcelain in different alloys 7,[20][21][22] . However, few studies have evaluated the bond strength of ceramics in regard with TIG welding or brazing.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of ceramic flexural strength in co-cr and ni-cr alloys joined by TIG welding and conventional brazing

et al. 2017

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The purpose of the present study was to evaluate the flexural strength of specimens made of nickel-chromium (Ni-Cr) and cobalt-chromium (Co-Cr) alloys and joined by tungsten inert gas (TIG) welding and conventional brazing. Ni–Cr and Co–Cr base metal specimens (n = 40, each) were cast and welded by TIG or brazing. The specimens were divided into six groups (2 base metals, four welded specimens). Ceramic systems were applied to the central part of all the specimens. A three-point bending test with a velocity of 0.5 mm/m was performed on the specimens up to the point of the first ceramic bond failure by measuring the flexural strength. Data were analyzed using two-way ANOVA and Bonferroni’s tests. Conventional welding showed the lowest flexural strength results for both alloys, while the TIG weld and the control group presented with varying bond strengths for the alloys studied. We concluded that TIG welding was superior to the conventional welding method for both Ni–Cr and Co–Cr alloys with regard to the flexural strength of the ceramic.

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Bonding of Dental Ceramics to Titanium: Processing and Conditioning Aspects

Antanasova

Jevnikar

2016

Curr Oral Health Rep

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Difficulties related to titanium processing (casting) and the problematic titanium-ceramic bond have been limiting the latter's application in prosthetic dentistry for many years. Recent advances in subtractive and additive CAD/CAM technologies have provided alternative routes for titanium processing. The effect of a processing route on titanium surface characteristics and on the strength of its bond to porcelain need to be assessed, since most paths for enhancing porcelain bonding involve preparation of the titanium surface. Several approaches to bond enhancement have been proposed, some of which are widely accepted (abrasion by airborne-particle and application of a bonding agent), while others have not resulted in a clinical breakthrough. Despite efforts to improve titanium bonding to porcelain and to develop titanium compatible, low-fusing porcelains, many in vitro studies report bond strengths to titanium that are inferior to those for base metals and noble dental alloys. Only a few clinical studies have been reported, revealing that titanium-ceramic restorations are susceptible to mechanical complications (porcelain fractures in 33 % of cases). Current knowledge on titanium-ceramic bonding is here reviewed, focusing on the recent attempts to overcome the limitations of the system and on recent advances in titanium processing. Optimization of the currently available processing and surface conditioning methods seems to be necessary.Although most of the proposed surface preparation methods (surface coating and roughening) appear to show a certain degree of porcelain bond improvement, many of them require application of additional complex procedures. Simplification and improved efficiency therefore appear to be the essentials for implementation of these methods in clinical practice.

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Surface characterization and bond strengths between Ti-20Cr-1X alloys and low-fusing porcelain

Cited by 5 publications

References 20 publications

Bond strength of Ti–5Cr based alloys to dental porcelain with Mo addition

Bond strength of Ti–5Cr based alloys to dental porcelain with Mo addition

Comparative analysis of ceramic flexural strength in co-cr and ni-cr alloys joined by TIG welding and conventional brazing

Bonding of Dental Ceramics to Titanium: Processing and Conditioning Aspects

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