Penetration depth into dental casting alloys by Nd:YAG laser

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Naoki Baba, Ikuya Watanabe

Abstract

This study investigated the effect of laser-beam welding conditions [voltage (V) and spot diameter (mm)] on the penetration depth into dental casting alloys. Castings (3.0 mm x 8.0 mm x 50 mm) were prepared from the metals used in this study: commercially pure titanium (CP Ti), Ti-6Al-4V, Ti-6Al-7Nb, cobalt-chromium alloy (Co-Cr) and Type IV gold alloy. Two cast blocks of each metal were butted against one another at the 8.0 x 50-mm surfaces. They were then welded at their interface under the following conditions: voltage of 160-340 V, spot diameter of 0.4-1.6 mm, and pulse duration of 10 ms. After laser welding, the blocks were separated, and the penetration depth into each alloy was measured. The data were analyzed with the use of ANOVA at the p < 0.05 level of significance. The penetration depths were as follows: CP Ti (0.29-6.45 mm), Ti-6Al-4V (0.32-5.24 mm), Ti-6Al-7Nb (0.34-5.65 mm), Co-Cr (0.24-6.15 mm), and Type IV gold alloy (0.12-5.22 mm). The voltage and spot diameter affected the penetration depth into the metals tested. When the voltage increased and the spot diameter decreased, the penetration depth increased for each metal. Selecting suitable conditions for laser welding to obtain sufficient penetration depth for...Continue Reading

References

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Citations

Jul 12, 2008·European Journal of Orthodontics·Jens Johannes BockRobert Andreas Werner Fuhrmann
Nov 3, 2011·The Angle Orthodontist·Etsuko WatanabeIkuya Watanabe
Oct 1, 2011·Journal of Oral Science·Hisaji KikuchiTakayuki Yoneyama
Nov 30, 2011·Dental Materials Journal·Juliana Maria Costa Nuñez-PantojaMarcelo Ferraz Mesquita
May 21, 2014·The Journal of Prosthetic Dentistry·Husain A GhadhanfariHyeongil Kim
May 15, 2012·Dental Materials : Official Publication of the Academy of Dental Materials·Angéline Poulon-QuintinCaroline Bertrand
Mar 2, 2011·Brazilian Oral Research·Juliana Maria Costa Nuñez-PantojaMarcelo Ferraz Mesquita
Dec 18, 2008·Journal of Applied Oral Science : Revista FOB·Jens Johannes BockRobert Andreas Werner Fuhrmann
Jun 11, 2014·Lasers in Medical Science·Caroline Bertrand, Angeline Poulon-Quintin
Feb 28, 2015·The Journal of Advanced Prosthodontics·John KokolisSpiros Zinelis
May 22, 2007·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Masahiro IijimaItaru Mizoguchi
Oct 17, 2007·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Masahiro IijimaItaru Mizoguchi
Sep 29, 2009·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Caroline Bertrand, Angeline Poulon-Quintin
Dec 4, 2009·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Honghua LiuGuo He
Jul 27, 2005·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Ikuya WatanabeYasuhiro Tanaka
Dec 18, 2008·The Open Dentistry Journal·Ikuya Watanabe, Cameron Wallace
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Nov 15, 2018·Micromachines·Asma PerveenCarlo Fornaini
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May 7, 2016·Current Opinion in Urology·Gino J Vricella, Douglas E Coplen
Dec 5, 2015·Biomaterials Research·Jun-Hee LeeMin-Ho Hong

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