The Effect of Incorporation of 0.5 %wt. Silica Nanoparticles on the Micro Shear Bond Strength of a Resin Modified Glass Ionomer Cement
Statement of the Problem: The clinical success of glass ionomer restorations depends on the strength of resin-modified glass ionomer (RMGI) cement bonding to dentin and there is limited information available regarding the bond strength of resin modified glass ionomers containing silica nanoparticles...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Shiraz University of Medical Sciences
2019-06-01
|
| Series: | Journal of Dentistry |
| Subjects: | |
| Online Access: | http://dentjods.sums.ac.ir/index.php/JDSUMS/article/view/2138/1238 |
| _version_ | 1811248042628612096 |
|---|---|
| author | Mohammad Bagher Rezvani Mohammad Atai Hamid Safar Alizade Mahshid Mohammadi Basir Fatemeh Koohpeima Saba Siabani |
| author_facet | Mohammad Bagher Rezvani Mohammad Atai Hamid Safar Alizade Mahshid Mohammadi Basir Fatemeh Koohpeima Saba Siabani |
| author_sort | Mohammad Bagher Rezvani |
| collection | DOAJ |
| description | Statement of the Problem: The clinical success of glass ionomer restorations depends on the strength of resin-modified glass ionomer (RMGI) cement bonding to dentin and there is limited information available regarding the bond strength of resin modified glass ionomers containing silica nanoparticles to dental structures.
Purpose: The aim of this study was to compare the microshear bond strength (µSBS) of RMGI with and without silica (SiO2) nanoparticles to dentin of permanent teeth.
Materials and Method: in this experimental study, the occlusal surfaces of 30 freshly extracted intact third molars were ground to expose the flat dentin and after conditioning with 20% poly acrylic acid, were randomly assigned to two main groups (n=15). The first group was filled with RMGI (Fuji II LC, GC) and the second group was filled with RMGI plus 0.5%wt. silica nanoparticles. Then, each main group was divided into three subgroups, and then stored in an incubator at 37 oC with 100% humidity for 1, 7, and 30 days. The µSBS test was performed using a universal testing machine (1 mm/min). The data were analyzed by t-test, repeated measures ANOVA and Tukey test (p< 0.05).
Results: There were no statistically significant differences between the mean µSBS of the groups with and without nanoparticles along the different storage periods (p> 0.05). There was significant difference in µSBS values among the three different storage periods in all the tested materials (p< 0.05).
Conclusion: Incorporation of 0.5 %wt. silica nanoparticles did not compromise the µSBS of Fuji II LC RMGI to dentin. |
| first_indexed | 2024-04-12T15:20:04Z |
| format | Article |
| id | doaj.art-e2d7a0cb83644f5484ffcb182df0e0a6 |
| institution | Directory Open Access Journal |
| issn | 2345-6485 2345-6418 |
| language | English |
| last_indexed | 2024-04-12T15:20:04Z |
| publishDate | 2019-06-01 |
| publisher | Shiraz University of Medical Sciences |
| record_format | Article |
| series | Journal of Dentistry |
| spelling | doaj.art-e2d7a0cb83644f5484ffcb182df0e0a62022-12-22T03:27:30ZengShiraz University of Medical SciencesJournal of Dentistry2345-64852345-64182019-06-01202124130The Effect of Incorporation of 0.5 %wt. Silica Nanoparticles on the Micro Shear Bond Strength of a Resin Modified Glass Ionomer CementMohammad Bagher Rezvani 0Mohammad Atai 1Hamid Safar Alizade 2Mahshid Mohammadi Basir 3Fatemeh Koohpeima4Saba Siabani 5Dept. of Operative Dentistry, School of Dentistry, Shahed University, Tehran, Iran.Dept. of Polymer Science, Iran Polymer and Petrochemical Institute, Tehran, Iran.General Dentist, Private Practice, Tehran, Iran.Dept. of Operative Dentistry, School of Dentistry, Shahed University, Tehran, Iran.Dept. of Operative Dentistry, Biomaterials Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran. General Dentist and Dental Specialties Candidate, Dept. of Operative Dentistry, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran. Statement of the Problem: The clinical success of glass ionomer restorations depends on the strength of resin-modified glass ionomer (RMGI) cement bonding to dentin and there is limited information available regarding the bond strength of resin modified glass ionomers containing silica nanoparticles to dental structures. Purpose: The aim of this study was to compare the microshear bond strength (µSBS) of RMGI with and without silica (SiO2) nanoparticles to dentin of permanent teeth. Materials and Method: in this experimental study, the occlusal surfaces of 30 freshly extracted intact third molars were ground to expose the flat dentin and after conditioning with 20% poly acrylic acid, were randomly assigned to two main groups (n=15). The first group was filled with RMGI (Fuji II LC, GC) and the second group was filled with RMGI plus 0.5%wt. silica nanoparticles. Then, each main group was divided into three subgroups, and then stored in an incubator at 37 oC with 100% humidity for 1, 7, and 30 days. The µSBS test was performed using a universal testing machine (1 mm/min). The data were analyzed by t-test, repeated measures ANOVA and Tukey test (p< 0.05). Results: There were no statistically significant differences between the mean µSBS of the groups with and without nanoparticles along the different storage periods (p> 0.05). There was significant difference in µSBS values among the three different storage periods in all the tested materials (p< 0.05). Conclusion: Incorporation of 0.5 %wt. silica nanoparticles did not compromise the µSBS of Fuji II LC RMGI to dentin.http://dentjods.sums.ac.ir/index.php/JDSUMS/article/view/2138/1238Glass Ionomer; Silica; Nanoparticles; Shear Strength |
| spellingShingle | Mohammad Bagher Rezvani Mohammad Atai Hamid Safar Alizade Mahshid Mohammadi Basir Fatemeh Koohpeima Saba Siabani The Effect of Incorporation of 0.5 %wt. Silica Nanoparticles on the Micro Shear Bond Strength of a Resin Modified Glass Ionomer Cement Journal of Dentistry Glass Ionomer; Silica; Nanoparticles; Shear Strength |
| title | The Effect of Incorporation of 0.5 %wt. Silica Nanoparticles on the Micro Shear Bond Strength of a Resin Modified Glass Ionomer Cement |
| title_full | The Effect of Incorporation of 0.5 %wt. Silica Nanoparticles on the Micro Shear Bond Strength of a Resin Modified Glass Ionomer Cement |
| title_fullStr | The Effect of Incorporation of 0.5 %wt. Silica Nanoparticles on the Micro Shear Bond Strength of a Resin Modified Glass Ionomer Cement |
| title_full_unstemmed | The Effect of Incorporation of 0.5 %wt. Silica Nanoparticles on the Micro Shear Bond Strength of a Resin Modified Glass Ionomer Cement |
| title_short | The Effect of Incorporation of 0.5 %wt. Silica Nanoparticles on the Micro Shear Bond Strength of a Resin Modified Glass Ionomer Cement |
| title_sort | effect of incorporation of 0 5 wt silica nanoparticles on the micro shear bond strength of a resin modified glass ionomer cement |
| topic | Glass Ionomer; Silica; Nanoparticles; Shear Strength |
| url | http://dentjods.sums.ac.ir/index.php/JDSUMS/article/view/2138/1238 |
| work_keys_str_mv | AT mohammadbagherrezvani theeffectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT mohammadatai theeffectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT hamidsafaralizade theeffectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT mahshidmohammadibasir theeffectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT fatemehkoohpeima theeffectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT sabasiabani theeffectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT mohammadbagherrezvani effectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT mohammadatai effectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT hamidsafaralizade effectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT mahshidmohammadibasir effectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT fatemehkoohpeima effectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement AT sabasiabani effectofincorporationof05wtsilicananoparticlesonthemicroshearbondstrengthofaresinmodifiedglassionomercement |