Journal of Iranian Dental Association
J Iran Dent Assoc
Medical Sciences
http://jida.ir
23
journal23
2383-3041
10.52547/jida
en
jalali
1397
7
1
gregorian
2018
10
1
30
4
online
1
fulltext
en
Effect of Laser Irradiation on Bond Strength of Zirconia Ceramic to Self-Adhesive Resin Cement
lasers
lasers
Original
Original
<div><strong style="text-align: justify;">Background and Aim: </strong><span style="text-align: justify;">Bonding of zirconia to resin cement is challenging, and the zirconia surface requires surface treatment to yield an acceptable bond strength. This study aimed to evaluate the effect of different surface treatments on the bond strength of zirconia to a resin cement.</span></div>
<div style="text-align: justify;"><strong>Materials and Methods: </strong>In this in-vitro experimental study, 60 zirconia discs measuring 12 mm in diameter and 2 mm in thickness were randomly divided in to six groups of 10: (I) No treatment, (II) sandblasting plus neodymium-doped yttrium aluminum garnet (Nd:YAG) laser (1 W), (III) sandblasting plus Nd:YAG laser (2 W), (IV) Nd:YAG laser alone (1 W), (V) Nd:YAG laser alone (2 W), and (VI) sandblasting. Using a custom-made punch, a V-shaped bonding area with a 4-mm diameter and 90° angle was created in a Teflon tape. Composite cylinders (Filtek Z250) were then fabricated and bonded to conditioned zirconia ceramic using Clearfil self-adhesive lut-ing cement. Specimens were stored in distilled water at 37°C for 24 hours. Then, the specimens were tested for bond strength using a universal testing machine. Data were analyzed using two-way analysis of variance (ANOVA) followed by t-test. One-way ANOVA and Tukey's HSD (honestly significant difference) test were applied for evaluating the effect of the laser.<br>
<strong>Results: </strong>Sandblasting caused a significantly higher bond strength compared to other methods (P=0.00). Among the laser-irradiated groups, Nd:YAG laser (2 W) yielded a higher bond strength (P<0.05).<br>
<strong>Conclusion: </strong>Sandblasting of high-strength zirconia ceramic can significantly increase its bond strength, but no significant difference in bond strength was noted in the laser-irradiated groups.</div>
Zirconia, Resin Cements, Low-Level Light Therapy
159
164
http://jida.ir/browse.php?a_code=A-10-1-917&slc_lang=en&sid=1
Zahra
Amiri
2300319475328460020746
2300319475328460020746
No
Assistant Professor, Department of Operative Dentistry, School of Dentistry, Semnan University of Medical Sciences, Tehran, Iran
Ali
Davoodi
2300319475328460020747
2300319475328460020747
No
PhD Candidate, Research Center for Science and Technology in Medicine, Tehran University of Medical Sciences, Tehran, Iran And Department of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
Stefano
Benedicenti
2300319475328460020748
2300319475328460020748
No
Associate Professor, Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
Sima
Shahabi
shahabis@tums.ac.ir
2300319475328460020749
2300319475328460020749
Yes
Professor, Laser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran And Department of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
Mohammad Javad
Kharrazifard
2300319475328460020750
2300319475328460020750
No
Research Member, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran