Micro-computed tomography assesment of structural microporosity and marginal gaps in different flowable composites placed with different instruments
Abstract
Objectives: The aim of this study was to evaluate the structural microporosity (MP) and marginal gap (MG) of different flowable composite resins placed with different instruments using micro-computed tomography (μCT).
Materials and Methods: Standard Class II MOD cavities were prepared on 108 lower third molar teeth. Three different flowable composite resins; Filtek Bulk-fill, SDR Bulk-fill and I-Flow conventional flowable composite resin were applied to the cavities using a sharp explorer, a microbrush or an injector. After they were covered with a paste-like nanohybrid composite resin, μCT images were examined in terms of MP and MG. Statistical analysis of the data was performed using two-way ANOVA and Tukey’s post hoc tests.
Results: MP was observed less in explorer group than microbrush and injector groups (p < 0.05). There was no significant difference between microbrush and injector groups (p > 0.05). i-FLOW flowable composite resin showed the highest MP rate compared to the other two groups (p < 0.05). There was no significant difference between SDR and Filtek Bulk-fill in MP (p > 0.05). In terms of MG, i-FLOW presented higher MG values than other two materials (p < 0.05), while the instruments showed similar results (p > 0.05).
Conclusions: Additional occluso-gingivally vibration of flowable materials with an explorer may be useful in the placement. Bulk-fill composite resins are better than conventional flowable composite resin in terms of MP and MG.
Supporting Institution
Erciyes University Scientific Research and Projects Foundation
Project Number
TSA-2017-7375
References
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- 2. Nazari A, Sadr A, Shimada Y, Tagami J, Sumi Y. 3D assessment of void and gap formation in flowable resin composites using optical coherence tomography. J Adhes Dent 2013; 15(3):237-43.
- 3. Hirata R, Pacheco RR, Caceres E, Janal MN, Romero MF, Giannini M, Coelho PG, Rueggeberg FA. Effect of Sonic Resin Composite Delivery on Void Formation Assessed by Micro-computed Tomography. Oper Dent 2018; 43(2):144-150.
- 4 Nahedh HA, Sibai NS. Evaluation of Interfacial Gap Volume of Two Low-shrinkage Composites Using Micro-Computed Tomography. Oper Dent 2017; 42(6):658-668.
- 5. Ilie N, Hickel R. Investigations on a methacrylate-based flowable composite based on the SDR™ technology. Dent Mater 2011; 27(4):348-55.
- 6. Hickel R, Manhart J. Longevity of restorations in posterior teeth and reasons for failure. J Adhes Dent 2001; 3(1):45-64.
- 7. Peutzfeldt A, Asmussen E. Determinants of in vitro gap formation of resin composites. J Dent 2004; 32(2):109-15.
- 8. Balthazard R, Jager S, Ferry O, Dahoun A, Mortier E. Porosity of flowable resin composites is not influenced by applicator tip diameter. Am J Dent 2017; 30(3):125-130.
- 9. Algamaiah H, Sampaio CS, Rigo LC, Janal MN, Giannini M, Bonfante EA, Coelho PG, Reis AF, Hirata R. Microcomputed Tomography Evaluation of Volumetric Shrinkage of Bulk-Fill Composites in Class II Cavities. J Esthet Restor Dent 2017; 29(2):118-127.
- 10. Carrera CA, Lan C, Escobar-Sanabria D, Li Y, Rudney J, Aparicio C, Fok A. The use of micro-CT with image segmentation to quantify leakage in dental restorations. Dent Mater 2015; 31(4):382-90.
- 11. Almeida LJDS Junior, Penha KJS, Souza AF, Lula ECO, Magalhães FC, Lima DM, Firoozmand LM. Is there correlation between polymerization shrinkage, gap formation, and void in bulk fill composites? A μCT study. Braz Oral Res. 2017; 31:e100.
- 12. Cidreira Boaro LC, Pereira Lopes D, de Souza ASC, Lie Nakano E, Ayala Perez MD, Pfeifer CS, Gonçalves F. Clinical performance and chemical-physical properties of bulk fill composites resin -a systematic review and meta-analysis. Dent Mater 2019; 35(10):e249-e264.
- 13. Kapoor N, Bahuguna N, Anand S. Influence of composite insertion technique on gap formation. J Conserv Dent 2016; 19(1):77-81.
Abstract
Project Number
TSA-2017-7375
References
- 1. Ilie N, Bucuta S, Draenert M. Bulk-fill resin-based composites: an in vitro assessment of their mechanical performance. Oper Dent 2013; 38(6):618-625.
- 2. Nazari A, Sadr A, Shimada Y, Tagami J, Sumi Y. 3D assessment of void and gap formation in flowable resin composites using optical coherence tomography. J Adhes Dent 2013; 15(3):237-43.
- 3. Hirata R, Pacheco RR, Caceres E, Janal MN, Romero MF, Giannini M, Coelho PG, Rueggeberg FA. Effect of Sonic Resin Composite Delivery on Void Formation Assessed by Micro-computed Tomography. Oper Dent 2018; 43(2):144-150.
- 4 Nahedh HA, Sibai NS. Evaluation of Interfacial Gap Volume of Two Low-shrinkage Composites Using Micro-Computed Tomography. Oper Dent 2017; 42(6):658-668.
- 5. Ilie N, Hickel R. Investigations on a methacrylate-based flowable composite based on the SDR™ technology. Dent Mater 2011; 27(4):348-55.
- 6. Hickel R, Manhart J. Longevity of restorations in posterior teeth and reasons for failure. J Adhes Dent 2001; 3(1):45-64.
- 7. Peutzfeldt A, Asmussen E. Determinants of in vitro gap formation of resin composites. J Dent 2004; 32(2):109-15.
- 8. Balthazard R, Jager S, Ferry O, Dahoun A, Mortier E. Porosity of flowable resin composites is not influenced by applicator tip diameter. Am J Dent 2017; 30(3):125-130.
- 9. Algamaiah H, Sampaio CS, Rigo LC, Janal MN, Giannini M, Bonfante EA, Coelho PG, Reis AF, Hirata R. Microcomputed Tomography Evaluation of Volumetric Shrinkage of Bulk-Fill Composites in Class II Cavities. J Esthet Restor Dent 2017; 29(2):118-127.
- 10. Carrera CA, Lan C, Escobar-Sanabria D, Li Y, Rudney J, Aparicio C, Fok A. The use of micro-CT with image segmentation to quantify leakage in dental restorations. Dent Mater 2015; 31(4):382-90.
- 11. Almeida LJDS Junior, Penha KJS, Souza AF, Lula ECO, Magalhães FC, Lima DM, Firoozmand LM. Is there correlation between polymerization shrinkage, gap formation, and void in bulk fill composites? A μCT study. Braz Oral Res. 2017; 31:e100.
- 12. Cidreira Boaro LC, Pereira Lopes D, de Souza ASC, Lie Nakano E, Ayala Perez MD, Pfeifer CS, Gonçalves F. Clinical performance and chemical-physical properties of bulk fill composites resin -a systematic review and meta-analysis. Dent Mater 2019; 35(10):e249-e264.
- 13. Kapoor N, Bahuguna N, Anand S. Influence of composite insertion technique on gap formation. J Conserv Dent 2016; 19(1):77-81.
Details
| Primary Language | English |
|---|---|
| Subjects | Health Care Administration |
| Journal Section | Original Research Articles |
| Authors | |
| Project Number | TSA-2017-7375 |
| Publication Date | December 30, 2022 |
| Submission Date | May 10, 2022 |
| Published in Issue | Year 2022Volume: 25 Issue: 4 |
Cited By
Evaluation of surface microhardness and gingival marginal adaptation of three different bulk‐fill flowable resin composites: A comparative study
Journal of Esthetic and Restorative Dentistry
https://doi.org/10.1111/jerd.13211
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