Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study
Aim: The aim of the study was to evaluate the microleakage on the marginal integrity of nanohybrid composite during bleaching with carbamide peroxide after applying a protective coating of G-Coat plus (GC, Japan). Materials and Methods: Class V cavities were prepared and restored with nanohybrid co...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2015-01-01
|
| Series: | Indian Journal of Dental Research |
| Subjects: | |
| Online Access: | http://www.ijdr.in/article.asp?issn=0970-9290;year=2015;volume=26;issue=2;spage=167;epage=169;aulast=Kumar |
| _version_ | 1828469749510569984 |
|---|---|
| author | A Ashok Kumar V P Hariharavel Ashwin Narayanan S Murali |
| author_facet | A Ashok Kumar V P Hariharavel Ashwin Narayanan S Murali |
| author_sort | A Ashok Kumar |
| collection | DOAJ |
| description | Aim: The aim of the study was to evaluate the microleakage on the marginal integrity of nanohybrid composite during bleaching with carbamide peroxide after applying a protective coating of G-Coat plus (GC, Japan).
Materials and Methods: Class V cavities were prepared and restored with nanohybrid composite restoration in 60 freshly extracted noncarious premolars extracted for orthodontic reasons. Then they were divided into 3 groups. Group 1 - bleaching with carbamide peroxide without G coat plus (n = 20), Group 2 - bleaching with carbamide peroxide with G-Coat plus (n = 20), Group 3 - without bleaching procedure (n = 20) (control group). In Group 2, G coat plus was applied over the restorative surface and margins. Then all teeth in Groups 1 and 2 were taken and mounted in dental stone. Bleaching trays were custom fabricated over the cast with the help of a heated vacuum-forming machine. 10% carbamide peroxide (opalescence PF) was applied over the tooth, and the bleaching process was done for about 2 weeks. Then all samples underwent thermocycling and were then immersed in the 2% methylene blue solution for 24 h and observed under a stereomicroscope to evaluate the amount of dye penetration. Data were compared using Kruskal-Wallis test and Mann-Whitney test using SPSS Inc.; Chicago, IL, USA, Version 17.0.
Results: Mann-Whitney test shows that the difference in microleakage between Group 1-Group 2 and Group 2-Group 3 is statistically significant (P < 0.05).
Conclusion: Significant reduction in microleakage was seen in Group 2 when compared to other groups. |
| first_indexed | 2024-12-11T04:43:29Z |
| format | Article |
| id | doaj.art-9aec8cbf59854ae892b85eebdb33b5a2 |
| institution | Directory Open Access Journal |
| issn | 0970-9290 1998-3603 |
| language | English |
| last_indexed | 2024-12-11T04:43:29Z |
| publishDate | 2015-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Dental Research |
| spelling | doaj.art-9aec8cbf59854ae892b85eebdb33b5a22022-12-22T01:20:34ZengWolters Kluwer Medknow PublicationsIndian Journal of Dental Research0970-92901998-36032015-01-0126216716910.4103/0970-9290.159150Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage studyA Ashok KumarV P HariharavelAshwin NarayananS MuraliAim: The aim of the study was to evaluate the microleakage on the marginal integrity of nanohybrid composite during bleaching with carbamide peroxide after applying a protective coating of G-Coat plus (GC, Japan). Materials and Methods: Class V cavities were prepared and restored with nanohybrid composite restoration in 60 freshly extracted noncarious premolars extracted for orthodontic reasons. Then they were divided into 3 groups. Group 1 - bleaching with carbamide peroxide without G coat plus (n = 20), Group 2 - bleaching with carbamide peroxide with G-Coat plus (n = 20), Group 3 - without bleaching procedure (n = 20) (control group). In Group 2, G coat plus was applied over the restorative surface and margins. Then all teeth in Groups 1 and 2 were taken and mounted in dental stone. Bleaching trays were custom fabricated over the cast with the help of a heated vacuum-forming machine. 10% carbamide peroxide (opalescence PF) was applied over the tooth, and the bleaching process was done for about 2 weeks. Then all samples underwent thermocycling and were then immersed in the 2% methylene blue solution for 24 h and observed under a stereomicroscope to evaluate the amount of dye penetration. Data were compared using Kruskal-Wallis test and Mann-Whitney test using SPSS Inc.; Chicago, IL, USA, Version 17.0. Results: Mann-Whitney test shows that the difference in microleakage between Group 1-Group 2 and Group 2-Group 3 is statistically significant (P < 0.05). Conclusion: Significant reduction in microleakage was seen in Group 2 when compared to other groups.http://www.ijdr.in/article.asp?issn=0970-9290;year=2015;volume=26;issue=2;spage=167;epage=169;aulast=KumarBleachingG coat plusmicroleakagenanohybrid composite |
| spellingShingle | A Ashok Kumar V P Hariharavel Ashwin Narayanan S Murali Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study Indian Journal of Dental Research Bleaching G coat plus microleakage nanohybrid composite |
| title | Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study |
| title_full | Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study |
| title_fullStr | Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study |
| title_full_unstemmed | Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study |
| title_short | Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study |
| title_sort | effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide a microleakage study |
| topic | Bleaching G coat plus microleakage nanohybrid composite |
| url | http://www.ijdr.in/article.asp?issn=0970-9290;year=2015;volume=26;issue=2;spage=167;epage=169;aulast=Kumar |
| work_keys_str_mv | AT aashokkumar effectofprotectivecoatingonmarginalintegrityofnanohybridcompositeduringbleachingwithcarbamideperoxideamicroleakagestudy AT vphariharavel effectofprotectivecoatingonmarginalintegrityofnanohybridcompositeduringbleachingwithcarbamideperoxideamicroleakagestudy AT ashwinnarayanan effectofprotectivecoatingonmarginalintegrityofnanohybridcompositeduringbleachingwithcarbamideperoxideamicroleakagestudy AT smurali effectofprotectivecoatingonmarginalintegrityofnanohybridcompositeduringbleachingwithcarbamideperoxideamicroleakagestudy |