Journal of Conservative Dentistry

ORIGINAL RESEARCH
Year
: 2021  |  Volume : 24  |  Issue : 2  |  Page : 135--140

Effect of nonthermal atmospheric plasma on the shear bond strength of composite resin after using different tooth-whitening systems: An in vitro study


Bolla Nagesh, Kommineni Harika Chowdary, Praveen Kumar Gali, Tammineedi Sravanthi, Lakshmi Bhavani Potru, Aameena Banu Mayana 
 Department of Conservative Dentistry and Endodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India

Correspondence Address:
Dr. Kommineni Harika Chowdary
Department of Conservative Dentistry and Endodontics, Sibar Institute of Dental Sciences, Guntur - 522 509, Andhra Pradesh
India

Aim: We aimed to evaluate the effect of nonthermal atmospheric plasma (NTAP) on the bond strength of composite resin after using different tooth-whitening systems. Methods: Eighty maxillary central incisors (n = 80) were divided into two groups based on the tooth-whitening procedure used – Group 1: bleaching (Pola Office, USA), Group 2: microabrasion (Opalustre, Australia). The samples were subdivided into four groups depending on the surface treatments – Group A: control (no surface treatment), Group B: plasma, Group C: antioxidant (sodium ascorbate), and Group D: buffering agent (sodium bicarbonate). After the surface treatments, the specimens were stored in artificial saliva for 24 h and composite resin was bonded to the labial surface of the teeth perpendicular to the long axis. The samples were then subjected to shear bond strength test under the universal testing machine. Statistical Analysis: The results received from shear bond strength analysis were subjected to statistical analysis using a two-way ANOVA test, independent t-test, and Tukey's multiple post hoc tests. The P value set was <0.05. Results: The highest mean bond strength value was seen in Group 2B (NTAP treatment after microabrasion) followed by Group 1B (NTAP treatment after bleaching). Mean shear bond strength values have suggested a statistically significant difference between all the other groups (P < 0.05) except between Groups 1A, 2A and 1D, 2D. Conclusions: Within the limitations of the current in vitro study, bleaching and microabrasion followed by surface treatment using NTAP showed the highest bond strength than other groups.


How to cite this article:
Nagesh B, Chowdary KH, Gali PK, Sravanthi T, Potru LB, Mayana AB. Effect of nonthermal atmospheric plasma on the shear bond strength of composite resin after using different tooth-whitening systems: An in vitro study.J Conserv Dent 2021;24:135-140


How to cite this URL:
Nagesh B, Chowdary KH, Gali PK, Sravanthi T, Potru LB, Mayana AB. Effect of nonthermal atmospheric plasma on the shear bond strength of composite resin after using different tooth-whitening systems: An in vitro study. J Conserv Dent [serial online] 2021 [cited 2021 Nov 30 ];24:135-140
Available from: https://www.jcd.org.in/article.asp?issn=0972-0707;year=2021;volume=24;issue=2;spage=135;epage=140;aulast=Nagesh;type=0