Repairing method of fixed partial prostheses in dentistry: laser welding

Meda L. Negrutiu; Cosmin Sinescu M.D.; Dalibor Cozarov; Laurentiu Culea; Mihai Rominu; Daniela M. Pop

doi:10.1117/12.764995

11 February 2008 Repairing method of fixed partial prostheses in dentistry: laser welding

Meda L. Negrutiu, Cosmin Sinescu M.D., Dalibor Cozarov, Laurentiu Culea, Mihai Rominu, Daniela M. Pop

Proceedings Volume 6843, Lasers in Dentistry XIV; 684309 (2008) https://doi.org/10.1117/12.764995
Event: SPIE BiOS, 2008, San Jose, California, United States

Abstract

Laser Welding is an advantageous method of connecting or repairing metal prosthetic frameworks because there are fewer effects of heating on the area surrounding the spot to be welded, and no further procedures, such as those used for conventional soldering, are necessary. Laser welding has been increasingly applied for fabricating the metal frameworks of prostheses and for other procedures, such as recovering the metal ridge and cusp, blocking holes on the occlusal surfaces after excess occlusal adjustment, thickening the metal framework, or adding contact points after excess grinding and adjusting of the crown margins. The objective of this study are represented by investigation and evaluation of three types of soldering compare to laser welding. The method is represented by the laser welding with a pulsed Nd-Yag Laser equipment. Other joints were produced, using three different soldering techniques. These joining areas were investigated for their quality and their corrosion properties. Corrosion attack was confirmed by electron microscopy. The investigations confirm the quality of laser welding. The investigated different laser welding methods revealed minimal corrosion and offers clear-cut advantages compared to the other soldering methods. Dental alloys are subjected to functional influences in the oral cavity and interact with the intraoral enviroment.

Citation Download Citation

Meda L. Negrutiu, Cosmin Sinescu M.D., Dalibor Cozarov, Laurentiu Culea, Mihai Rominu, and Daniela M. Pop "Repairing method of fixed partial prostheses in dentistry: laser welding", Proc. SPIE 6843, Lasers in Dentistry XIV, 684309 (11 February 2008); https://doi.org/10.1117/12.764995

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