Effect of three nanobiomaterials on microhardness of bleached enamel
Objectives The aim of this in vitro study was to evaluate the effect of incorporating three different nanobiomaterials into bleaching material on microhardness of bleached enamel. Materials and Methods The crowns of 24 extracted sound human molars were sectioned. Sixty enamel specimens (2 × 3 ×...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Korean Academy of Conservative Dentistry
2016-08-01
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| Series: | Restorative Dentistry & Endodontics |
| Online Access: | https://doi.org/10.5395/rde.2016.41.3.196 |
| _version_ | 1818499878338166784 |
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| author | Maryam Khoroushi Farinaz Shirban Sara Kaveh Samaneh Doustfateme |
| author_facet | Maryam Khoroushi Farinaz Shirban Sara Kaveh Samaneh Doustfateme |
| author_sort | Maryam Khoroushi |
| collection | DOAJ |
| description | Objectives
The aim of this in vitro study was to evaluate the effect of incorporating three different nanobiomaterials into bleaching material on microhardness of bleached enamel.
Materials and Methods
The crowns of 24 extracted sound human molars were sectioned. Sixty enamel specimens (2 × 3 × 4 mm) were selected and divided into five groups (n = 12): Group 1 received no bleaching procedure (control); Group 2 underwent bleaching with a 40% hydrogen peroxide (HP) gel; Groups 3, 4, and 5 were bleached with a 40% HP gel modified by incorporation of bioactive glass (BAG), amorphous calcium phosphate (ACP) and hydroxyapatite (HA), respectively. The enamel microhardness was evaluated. The differences in Knoop microhardness data of each group were analyzed by one-way ANOVA, followed by post hoc Tukey tests.
Results
Significant differences were observed between the study groups. The enamel microhardness changes in Groups 1, 3, 4, and 5 were significantly lower than that of Group 2 (p < 0.001).
Conclusions
Within the limitations of this study, it can be concluded that incorporation of each one of the three tested biomaterials as remineralizing agents might be effective in decreasing enamel microhardness changes subsequent to in-office bleaching. |
| first_indexed | 2024-12-10T20:35:35Z |
| format | Article |
| id | doaj.art-bc976990533a4c5093531f31dbbf8958 |
| institution | Directory Open Access Journal |
| issn | 2234-7658 2234-7666 |
| language | English |
| last_indexed | 2024-12-10T20:35:35Z |
| publishDate | 2016-08-01 |
| publisher | Korean Academy of Conservative Dentistry |
| record_format | Article |
| series | Restorative Dentistry & Endodontics |
| spelling | doaj.art-bc976990533a4c5093531f31dbbf89582022-12-22T01:34:33ZengKorean Academy of Conservative DentistryRestorative Dentistry & Endodontics2234-76582234-76662016-08-0141319620110.5395/rde.2016.41.3.196Effect of three nanobiomaterials on microhardness of bleached enamelMaryam Khoroushi0Farinaz Shirban1Sara Kaveh2Samaneh Doustfateme3Dental Materials Research Center, Department of Operative Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.Dental Research Center and Department of Orthodontics, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.Department of Operative Dentistry, School of Dentistry, Semnan University of Medical Sciences, Semnan, Iran.Persian Gulf Oral and Dental Disease Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.Objectives The aim of this in vitro study was to evaluate the effect of incorporating three different nanobiomaterials into bleaching material on microhardness of bleached enamel. Materials and Methods The crowns of 24 extracted sound human molars were sectioned. Sixty enamel specimens (2 × 3 × 4 mm) were selected and divided into five groups (n = 12): Group 1 received no bleaching procedure (control); Group 2 underwent bleaching with a 40% hydrogen peroxide (HP) gel; Groups 3, 4, and 5 were bleached with a 40% HP gel modified by incorporation of bioactive glass (BAG), amorphous calcium phosphate (ACP) and hydroxyapatite (HA), respectively. The enamel microhardness was evaluated. The differences in Knoop microhardness data of each group were analyzed by one-way ANOVA, followed by post hoc Tukey tests. Results Significant differences were observed between the study groups. The enamel microhardness changes in Groups 1, 3, 4, and 5 were significantly lower than that of Group 2 (p < 0.001). Conclusions Within the limitations of this study, it can be concluded that incorporation of each one of the three tested biomaterials as remineralizing agents might be effective in decreasing enamel microhardness changes subsequent to in-office bleaching.https://doi.org/10.5395/rde.2016.41.3.196 |
| spellingShingle | Maryam Khoroushi Farinaz Shirban Sara Kaveh Samaneh Doustfateme Effect of three nanobiomaterials on microhardness of bleached enamel Restorative Dentistry & Endodontics |
| title | Effect of three nanobiomaterials on microhardness of bleached enamel |
| title_full | Effect of three nanobiomaterials on microhardness of bleached enamel |
| title_fullStr | Effect of three nanobiomaterials on microhardness of bleached enamel |
| title_full_unstemmed | Effect of three nanobiomaterials on microhardness of bleached enamel |
| title_short | Effect of three nanobiomaterials on microhardness of bleached enamel |
| title_sort | effect of three nanobiomaterials on microhardness of bleached enamel |
| url | https://doi.org/10.5395/rde.2016.41.3.196 |
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