A COMPARISON BETWEEN THE EFFECT OF DIFFERENT PRESSURES OF AIR PARTICLE ABRASION BEFORE AND AFTER SINTERING WITH AND WITHOUT ZIRCONIA LINER ON BOND STRENGTH OF RESIN TO ZIRCONIA SURFACE

Authors

Lina Mohamad Saadeh, BDS. Faculty of Dentistry, Beirut Arab University, Beirut, LebanonFollow
Ehab A. Farghaly, Lecturer of Fixed Prosthodontics, Faculty of Dentistry, Nahda University, EgyptFollow
Mohammad M. Rayyan, Professor of Fixed Prosthodontics, Faculty of Dentistry, Saini University Kantara Campus, EgyptFollow
Essam Osman, Professor of Dental Biomaterials, Faculty of Dentistry, Beirut Arab University, Beirut, LebanonFollow

Keywords

zirconia, sintered, ceramic liner, air particle abrasion

Disciplines

Dental Materials | Life Sciences | Prosthodontics and Prosthodontology

Abstract

This study aimed to compare the effect of different pressures of air particle abrasion 2 and 4 bars before and after sintering with and without zirconia liner on SBS of resin to zirconia Surface. Materials and Methods: 54 zirconia cuboids 8×8×3 mm were milled and divided into 6 equal groups (N=9) according to surface treatment; sintered with ceramic liner application and 2 bars pressure (SL2) and with 4 bars pressure (SL4), sintered with no ceramic liner and 2 bars pressure (SN2) and 4 bars pressure (SN4), unsintered with no ceramic liner and 2 bars pressure (UN2) and 4 bars pressure (UN4). Specimens underwent thermocycling (1000 cycles) between 5 ̊ and 55 ̊ Celsius with dwell time of 10 seconds, and submitted to SBS test. Data was statistically analysed. Results: All 4 bars APA groups showed higher SBS than 2 bars groups with significant difference between SL4 group (4.7±2.07) and SL2 group (2.58±1.94). Groups with APA before sintering (12.42±2.56) showed significantly higher SBS than APA after sintering (6.35±3.7). SL2 group showed least SBS with significant difference (2.58±1.94) compared to UN2 (11.83±3.35) and SN2 (7.87±2.12). SL4 group (4.7±2.07) showed the least SBS compared to the UN4 (13±1.38), and SN4 (10.24±2.94) groups. Conclusion: It was found that APA of zirconia surface before sintering yielded superior performance than APA after sintering, also 4 bars APA pressure application showed higher SBS than 2 bars pressure, application and firing of ceramic liner onto zirconia surface didn’t enhance SBS.

Recommended Citation

Saadeh, Lina Mohamad; Farghaly, Ehab A.; Rayyan, Mohammad M.; and Osman, Essam (2021) "A COMPARISON BETWEEN THE EFFECT OF DIFFERENT PRESSURES OF AIR PARTICLE ABRASION BEFORE AND AFTER SINTERING WITH AND WITHOUT ZIRCONIA LINER ON BOND STRENGTH OF RESIN TO ZIRCONIA SURFACE," BAU Journal - Creative Sustainable Development: Vol. 3: Iss. 1, Article 10.
DOI: https://doi.org/10.54729/2789-8334.1059

ISSN

2789-8334