Application of diamond coatings onto small dental tools

Sein, Htet; Ahmed, Waqar; Rego, C.A.

doi:10.1016/s0925-9635(01)00579-9

Cited by 53 publications

(20 citation statements)

References 10 publications

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“…The conventional diamond burs used for handpiece machining operations have a number of problems associated with the heterogeneity of the crystallites, the decreased cutting efficiency, the need for repeated sterilization and the short tool life. More recently, diamond burs made of continuous films in the process of chemical vapor deposition (CVD) have been developed [95][96][97][98][99]. The major advantage of CVD over the other surface engineering techniques is its ability to coat uniformly on the complex components of dental burs [96,98].…”

Section: Wear Of Diamond Bursmentioning

confidence: 99%

“…More recently, diamond burs made of continuous films in the process of chemical vapor deposition (CVD) have been developed [95][96][97][98][99]. The major advantage of CVD over the other surface engineering techniques is its ability to coat uniformly on the complex components of dental burs [96,98]. Additionally, it is possible to apply continuous layers of coating onto the substrate material, and to make the dental burs last longer.…”

Section: Wear Of Diamond Bursmentioning

confidence: 99%

See 1 more Smart Citation

An overview of in vitro abrasive finishing & CAD/CAM of bioceramics in restorative dentistry

Yin

Song

et al. 2006

International Journal of Machine Tools and Manufacture

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Section: Wear Of Diamond Bursmentioning

confidence: 99%

Section: Wear Of Diamond Bursmentioning

confidence: 99%

An overview of in vitro abrasive finishing & CAD/CAM of bioceramics in restorative dentistry

Yin

Song

et al. 2006

International Journal of Machine Tools and Manufacture

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“…The gas phase mixture of H 2 (purity 99.99%) and CH 4 (purity 99.99%) with a CH 4 -to-H 2 volume ratio fixed at 1.0% (1.0% CH 4 with excess H 2 ) was activated by Ta filament (0.5 mm in diameter) wound in a 10 mm internal diameter spiral. The dental bur was positioned centrally and coaxially within the spiral vertical filament at a 5 mm distance.…”

Section: Chemical Vapor Diamond Depositionmentioning

confidence: 99%

Comparative Investigation of Smooth Polycrystalline Diamond Films on Dental Burs by Chemical Vapor Deposition

Sein

Ahmed

Rego

et al. 2006

Journal of Materials Engineering and Performance

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Depositions of hot filament chemical vapor-deposited diamond on cobalt-cemented tungsten carbide (WCCo) rotary cutting dental burs are presented. Conventional dental tools made of sintered polycrystalline diamond have a number of problems associated with the heterogeneity of the crystallite, decreased cutting efficiency, and short life. A preferential (111) faceted diamond was obtained after 15 h of deposition at a growth rate of 1.1 µm/h. Diamond-coated WC-Co dental burs and conventional sintered burs are mainly used in turning, milling, and drilling operations for machining metal ceramic hard alloys such as CoCr, composite teeth, and aluminum alloy in the dental laboratory. The influence of structure, the mechanical characteristics of both diamond grains and hard alloys on the wear behavior, as well as the regimen of grinding on diamond wear are considered. Erosion wear properties are also investigated under air-sand erosion testing. After machining with excessive cutting performance, calculations can be made on flank and crater wear areas. Diamond-coated WC-Co dental burs offered significantly better erosion and wear resistance compared with uncoated WC-Co tools and sintered burs.

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“…A correct dental mill characterization is a difficult task, because of the complex conical multi-cutting surfaces of the milling tools. Some authors have studied dental milling applications, and diamond films have been considered a coating material for dental cutting tools [1][2][3][4][5]. Micro/nanocrystalline diamond films have also been coated on dental cutting tools [6].…”

Section: Introductionmentioning

confidence: 99%

Machining Cobalt-Based Dental Alloys with Tungsten Carbide Mills

Takahashi

Pasang

Conor

et al. 2014

Int.J.Soc.Mater.Eng.Resour.

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Milling characteristics of dental alloys have been investigated and compared. The four differently configured tools used were made of cemented tungsten carbide. Most were uncoated but one was coated with a diamond-like carbon layer. The dental alloys studied were cobalt-chrome (Co-Cr) and cobalt-chrome-titanium (Co-Cr-Ti) alloys, fairly strong alloys. There is a requirement for a reliable test to evaluate the properties of dental tools by measuring the cutting forces during milling. A full characterization of dental mills is a difficult task, because the geometry of the mills is complex, with conical multi-cutting surfaces. In this study a more comprehensive understanding of the effects of cutting rate on cutting forces was achieved by varying the cutting tool rotation speed and measuring the force on the workpiece as it was driven into the rotating tool at a fixed feed velocity. It was observed that the cutting forces were changed by varying cutting speeds. Side milling required lower forces than central slot milling. After milling the surfaces of the dental tools and dental alloy specimen were analyzed by scanning electron microscopy.

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Application of diamond coatings onto small dental tools

Cited by 53 publications

References 10 publications

An overview of in vitro abrasive finishing & CAD/CAM of bioceramics in restorative dentistry

An overview of in vitro abrasive finishing & CAD/CAM of bioceramics in restorative dentistry

Comparative Investigation of Smooth Polycrystalline Diamond Films on Dental Burs by Chemical Vapor Deposition

Machining Cobalt-Based Dental Alloys with Tungsten Carbide Mills

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