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Effect of Different Metal Bonding Agents on Shear Bond Strength of Ceramic to Direct Metal Laser Sintering

Author: Mustafa N. Abdulghani مصطفى نبيل عبد الغني
Journal: Tikrit Journal for Dental Sciences مجلة تكريت لعلوم طب الاسنان ISSN: 20731213 Year: 2017 Volume: 5 Issue: 1 Pages: 109-114
Publisher: Tikrit University جامعة تكريت

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Abstract

Introduction: laser sinter Cobalt Chromium metal replacing traditional castingprocesses of dental alloys for metal ceramic restorations, appropriate bonding ofceramic to metal is an important factor for long survival time. Twenty laser sintercubic metal 10 mm for each sides was fabricated by software designing andCADCAM direct metal laser sintering technique. The twenty cubics were classifiedaccording to the type of metal to ceramic bonding agents into two groups (n=10),Ceram bond apply for group A and Crea alloy bond for group B. Samples fabricatedusing custom made silicon index was used to act as standardized mold for metalbond application and porcelain buildup. Instron with chisel indenter and specialholding device were involve to measure the strength of bond for ceramic to lasersinter metal. The mean shear bond load of group A (688.8N) was significantlyhigher than that of group B (303.2N). Application of Ceram bond to metal lasersinter produces more bond strength when compare to usage of Crea bond material.

Keywords

Ceramic laser --- Bonding

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