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ASSESSMENT OF PORCELAIN FUSED TO METAL BOND STRENGTH AFTER LASER SURFACE TREATMENT OF RECYCLED COBALT-CHROMIUM ALLOY

Article

Last updated: 22 Jan 2023

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Abstract

Recycling of casted alloys in dentistry is sometimes done to reduce price and minimizing environmental hazards. The current study assessed the use of laser surface treatment to enhance the shear bond strength between porcelain and Cobalt-Chromium alloy hindered by adding ratios of recasted alloy. Ninety disc-shaped samples were fabricated and assembled into six groups. Group A fabricated from fresh alloy without laser treatment (negative control), group B fresh alloy with surface treatment by laser (positive control), group C-75% fresh alloy mixed with 25% of once recasted alloy followed by laser treatment, group D-50% fresh alloy mixed with 50% of once recasted alloy followed by laser treatment, group E-75% fresh alloy mixed with 25% of twice recasted alloy and laser treated and group F-50% fresh alloy mixed with 50% of twice recasted alloy and laser treated. The results revealed non-significant values were calculated between group A (negative control group) and groups B, C, D, E and F with significance values (0.059, 0.612, 1.000, 0.922 and 0.845). Similarly, the difference between groups C, D, E and F showed non-significant values (0.479, 0.117 and 0.074). A significant difference at 0.05 level was seen between group B (positive control group) and group D, E and F with significance values (0.037, 0.003 and 0.002) respectively. Accordingly, laser surface treatment might be used as an effective surface treatment after adding recycled alloys to casting process in order to enhance bond strength with ceramic materials.

DOI

10.21608/edj.2020.25182.1054

Keywords

Recycling of Casted Alloys, Porcelain to Metal Bond, Laser Surface Treatment

Authors

First Name

Mohammed

Last Name

Alruthea

MiddleName

Suleiman

Affiliation

Prosthodontic Department, Dental College in Alrass, Qassim University, Alrass City 58883, Kingdom of Saudi Arabia.

Email

alruthem@gmail.com

City

Arrass

Orcid

0000-0003-0138-4619

Volume

66

Article Issue

Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)

Related Issue

12616

Issue Date

2020-04-01

Receive Date

2020-03-04

Publish Date

2020-04-01

Page Start

1,163

Page End

1,172

Print ISSN

0070-9484

Online ISSN

2090-2360

Link

https://edj.journals.ekb.eg/article_92328.html

Detail API

https://edj.journals.ekb.eg/service?article_code=92328

Order

5

Type

Original Article

Type Code

254

Publication Type

Journal

Publication Title

Egyptian Dental Journal

Publication Link

https://edj.journals.ekb.eg/

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Article

Created At

22 Jan 2023