Effect of Two Different Ultrafast Curing Exposure Durations on the Surface Hardness of Bulk Fill Composite - An In-Vitro Study
Aim: The aim of the present study is to assess the microhardness of resin-based composites (RBCs) cured with ultrafast curing mode at two different exposure durations. Study Design: This is an experimental in-vitro study. Forty-five cylindrical composite specimens were prepared to a dimension of 5 m...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2023-10-01
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| Series: | Indian Journal of Dental Research |
| Subjects: | |
| Online Access: | https://journals.lww.com/10.4103/ijdr.ijdr_5_23 |
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| author | Shekar Shobana Anandavelu Sujareetha Sundaresan Balagopal Sarath Kumar Sriganesh Angusamy Sebatni Anisha |
| author_facet | Shekar Shobana Anandavelu Sujareetha Sundaresan Balagopal Sarath Kumar Sriganesh Angusamy Sebatni Anisha |
| author_sort | Shekar Shobana |
| collection | DOAJ |
| description | Aim:
The aim of the present study is to assess the microhardness of resin-based composites (RBCs) cured with ultrafast curing mode at two different exposure durations.
Study Design:
This is an experimental in-vitro study. Forty-five cylindrical composite specimens were prepared to a dimension of 5 mm height and 4 mm diameter. Curing was done using three different exposure modes and duration with dual mode LED curing light as follows: Group I: Ultrafast curing mode for 1 second at 2300 mW/cm2 (n = 15); Group II: Ultrafast curing mode for 3 second at 2300 mW/cm2 (n = 15) and Group III: Standard exposure mode for 20 second at 1000 mW/cm2 (n = 15). Vicker’s microhardness measurement was done on both the curing and non-curing sides of the specimen using a motorised diamond-faced micro-indenter (Wilson Wolpwert, Germany) using a load of 50 gram and a dwell time of 30 second.
Statistical Analysis:
Kruskal Wallis ANOVA was used to test for difference between the three groups followed by Mann–Whitney U test for post-hoc analysis.
Results:
The microhardness values of the composite cured with a conventional curing unit were significantly higher than the ultrafast cured specimens.
Conclusion:
Low-intensity conventional curing lights were found to perform better than the high-intensity ultrafast curing units. |
| format | Article |
| id | doaj-art-96468668074f4f90b62aab6db104e77f |
| institution | Kabale University |
| issn | 0970-9290 1998-3603 |
| language | English |
| publishDate | 2023-10-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Dental Research |
| spelling | doaj-art-96468668074f4f90b62aab6db104e77f2025-02-07T15:31:58ZengWolters Kluwer Medknow PublicationsIndian Journal of Dental Research0970-92901998-36032023-10-0134443844210.4103/ijdr.ijdr_5_23Effect of Two Different Ultrafast Curing Exposure Durations on the Surface Hardness of Bulk Fill Composite - An In-Vitro StudyShekar ShobanaAnandavelu SujareethaSundaresan BalagopalSarath KumarSriganesh AngusamySebatni AnishaAim: The aim of the present study is to assess the microhardness of resin-based composites (RBCs) cured with ultrafast curing mode at two different exposure durations. Study Design: This is an experimental in-vitro study. Forty-five cylindrical composite specimens were prepared to a dimension of 5 mm height and 4 mm diameter. Curing was done using three different exposure modes and duration with dual mode LED curing light as follows: Group I: Ultrafast curing mode for 1 second at 2300 mW/cm2 (n = 15); Group II: Ultrafast curing mode for 3 second at 2300 mW/cm2 (n = 15) and Group III: Standard exposure mode for 20 second at 1000 mW/cm2 (n = 15). Vicker’s microhardness measurement was done on both the curing and non-curing sides of the specimen using a motorised diamond-faced micro-indenter (Wilson Wolpwert, Germany) using a load of 50 gram and a dwell time of 30 second. Statistical Analysis: Kruskal Wallis ANOVA was used to test for difference between the three groups followed by Mann–Whitney U test for post-hoc analysis. Results: The microhardness values of the composite cured with a conventional curing unit were significantly higher than the ultrafast cured specimens. Conclusion: Low-intensity conventional curing lights were found to perform better than the high-intensity ultrafast curing units.https://journals.lww.com/10.4103/ijdr.ijdr_5_23high-intensity curingsurface hardnessultrafast curingvicker’s microhardness |
| spellingShingle | Shekar Shobana Anandavelu Sujareetha Sundaresan Balagopal Sarath Kumar Sriganesh Angusamy Sebatni Anisha Effect of Two Different Ultrafast Curing Exposure Durations on the Surface Hardness of Bulk Fill Composite - An In-Vitro Study Indian Journal of Dental Research high-intensity curing surface hardness ultrafast curing vicker’s microhardness |
| title | Effect of Two Different Ultrafast Curing Exposure Durations on the Surface Hardness of Bulk Fill Composite - An In-Vitro Study |
| title_full | Effect of Two Different Ultrafast Curing Exposure Durations on the Surface Hardness of Bulk Fill Composite - An In-Vitro Study |
| title_fullStr | Effect of Two Different Ultrafast Curing Exposure Durations on the Surface Hardness of Bulk Fill Composite - An In-Vitro Study |
| title_full_unstemmed | Effect of Two Different Ultrafast Curing Exposure Durations on the Surface Hardness of Bulk Fill Composite - An In-Vitro Study |
| title_short | Effect of Two Different Ultrafast Curing Exposure Durations on the Surface Hardness of Bulk Fill Composite - An In-Vitro Study |
| title_sort | effect of two different ultrafast curing exposure durations on the surface hardness of bulk fill composite an in vitro study |
| topic | high-intensity curing surface hardness ultrafast curing vicker’s microhardness |
| url | https://journals.lww.com/10.4103/ijdr.ijdr_5_23 |
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