Effects of Wet and Dry Finishing and Polishing on Surface Roughness and Microhardness of Composite Resins
Objectives: This study aimed to assess the effect of wet and dry finishing and polishing on microhardness and roughness of microhybrid and nanohybrid composites. Materials and Methods: Thirty samples were fabricated of each of the Polofil Supra and Aelite Aesthetic All-Purpose Body microhybrid and G...
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2017-08-01
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| Series: | Frontiers in Dentistry |
| Subjects: | |
| Online Access: | https://jdt.tums.ac.ir/index.php/jdt/article/view/1713 |
| _version_ | 1818832265008906240 |
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| author | Negin Nasoohi Maryam Hoorizad Seyedeh Farnaz Tabatabaie |
| author_facet | Negin Nasoohi Maryam Hoorizad Seyedeh Farnaz Tabatabaie |
| author_sort | Negin Nasoohi |
| collection | DOAJ |
| description | Objectives: This study aimed to assess the effect of wet and dry finishing and polishing on microhardness and roughness of microhybrid and nanohybrid composites.
Materials and Methods: Thirty samples were fabricated of each of the Polofil Supra and Aelite Aesthetic All-Purpose Body microhybrid and Grandio and Aelite Aesthetic Enamel nanohybrid composite resins. Each group (n=30) was divided into three subgroups of D, W and C (n=10). Finishing and polishing were performed dry in group D and under water coolant in group W. Group C served as the control group and did not receive finishing and polishing. Surface roughness of samples was measured by a profilometer and their hardness was measured by a Vickers hardness tester. Data were analyzed using two-way ANOVA (P<0.05).
Results: The smoothest surfaces with the lowest microhardness were obtained under Mylar strip without finishing/polishing for all composites (P<0.0001). The highest surface roughness was recorded for dry finishing/polishing for all composites (P<0.0001). Dry finishing/polishing increased the microhardness of all composites (P<0.0001).
Conclusions: Dry finishing and polishing increases the microhardness and surface roughness of microhybrid and nanohybrid composite resins. |
| first_indexed | 2024-12-19T02:00:16Z |
| format | Article |
| id | doaj.art-c2f5aab0fe474b2cae28e4864d126d05 |
| institution | Directory Open Access Journal |
| issn | 2676-296X |
| language | English |
| last_indexed | 2024-12-19T02:00:16Z |
| publishDate | 2017-08-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Frontiers in Dentistry |
| spelling | doaj.art-c2f5aab0fe474b2cae28e4864d126d052022-12-21T20:41:04ZengTehran University of Medical SciencesFrontiers in Dentistry2676-296X2017-08-01142909Effects of Wet and Dry Finishing and Polishing on Surface Roughness and Microhardness of Composite ResinsNegin Nasoohi0Maryam Hoorizad1Seyedeh Farnaz Tabatabaie2Associate Professor, Department of Restorative and Cosmetic Dentistry, Islamic Azad University, Tehran, IranAssociate Professor, Department of Restorative and Cosmetic Dentistry, Islamic Azad University, Tehran, IranPostgraduate Student of Restorative and Cosmetic Dentistry, Department of Restorative and Cosmetic Dentistry, Islamic Azad University, Tehran, IranObjectives: This study aimed to assess the effect of wet and dry finishing and polishing on microhardness and roughness of microhybrid and nanohybrid composites. Materials and Methods: Thirty samples were fabricated of each of the Polofil Supra and Aelite Aesthetic All-Purpose Body microhybrid and Grandio and Aelite Aesthetic Enamel nanohybrid composite resins. Each group (n=30) was divided into three subgroups of D, W and C (n=10). Finishing and polishing were performed dry in group D and under water coolant in group W. Group C served as the control group and did not receive finishing and polishing. Surface roughness of samples was measured by a profilometer and their hardness was measured by a Vickers hardness tester. Data were analyzed using two-way ANOVA (P<0.05). Results: The smoothest surfaces with the lowest microhardness were obtained under Mylar strip without finishing/polishing for all composites (P<0.0001). The highest surface roughness was recorded for dry finishing/polishing for all composites (P<0.0001). Dry finishing/polishing increased the microhardness of all composites (P<0.0001). Conclusions: Dry finishing and polishing increases the microhardness and surface roughness of microhybrid and nanohybrid composite resins.https://jdt.tums.ac.ir/index.php/jdt/article/view/1713Composite ResinsDental PolishingHardness |
| spellingShingle | Negin Nasoohi Maryam Hoorizad Seyedeh Farnaz Tabatabaie Effects of Wet and Dry Finishing and Polishing on Surface Roughness and Microhardness of Composite Resins Frontiers in Dentistry Composite Resins Dental Polishing Hardness |
| title | Effects of Wet and Dry Finishing and Polishing on Surface Roughness and Microhardness of Composite Resins |
| title_full | Effects of Wet and Dry Finishing and Polishing on Surface Roughness and Microhardness of Composite Resins |
| title_fullStr | Effects of Wet and Dry Finishing and Polishing on Surface Roughness and Microhardness of Composite Resins |
| title_full_unstemmed | Effects of Wet and Dry Finishing and Polishing on Surface Roughness and Microhardness of Composite Resins |
| title_short | Effects of Wet and Dry Finishing and Polishing on Surface Roughness and Microhardness of Composite Resins |
| title_sort | effects of wet and dry finishing and polishing on surface roughness and microhardness of composite resins |
| topic | Composite Resins Dental Polishing Hardness |
| url | https://jdt.tums.ac.ir/index.php/jdt/article/view/1713 |
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