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:: Volume 3, Issue 3 (Journal of Research in Dental & Maxillofacial Sciences Summer 2018) ::
J Res Dentomaxillofac Sci 2018, 3(3): 42-48 Back to browse issues page
Effect of GapSeal® as a Sealing Material on Microgap and Microleakage at External Hexagon Implant Connections Following Cyclic Loading: An In Vitro Study
A Zarbakhsh1, A Mazaheri Tehrani1, F Shamshirgar1, H Khosroshahi *2
1- Assisstant Prof, Prosthodontics Dept, Faculty of Dentistry,, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
2- Post Grduated Students, Prosthodontics Dept, Faculty of Dentistry, , hadikhosroshahi84@gmail.com
Abstract:   (703 Views)
Background and Aim: The mismatch of the implant-abutment connection can produce instant stress and microleakage which result in mechanical and biological complications. This study aimed to investigate the influence of GapSeal® as a sealing material on the extent of microgap and microleakage at the external hexagon implant platform following cyclic loading.
Materials and Methods: Sixteen implants with an external-hexagon connection (BioHorizons External dental implant) were employed in this in-vitro experimental study. All implant-abutment sets were assigned to two groups and were molded in acrylic resins. GapSeal® was injected into the implants in the experimental (test) group. Then, implant assemblies were tightened with the torque of 30 N/cm, and 1200,000 loading cycles with the force of 100 N and the frequency of 1 Hz were applied. Every sample was immersed in a methylene blue dye to evaluate microleakage. Microgap was measured in six regions randomly using a scanning electron microscope (SEM). The data were entered into SPSS 22 and were analyzed using t-test.
Results: The mean±SD microgap was 0.87±0.35 µm and 3.43±1.61 µm in the test and control groups, respectively. Methylene blue dye was observed in all of the specimens of the control group, while no liquid was seen in the test group. A significant statistical difference was found between the groups regarding the microgap and microleakage (P<0.0001).
Conclusion: Application of GapSeal® reduced the dimension of the microgap and decreased microleakage at the implant-abutment interface.
Keywords: Dental Leakage, Dental Implant-Abutment Design, Dental Marginal Adaptation
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Type of Study: Original article | Subject: Dental implant
* Corresponding Author Address: Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
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Zarbakhsh A, Mazaheri Tehrani A, Shamshirgar F, Khosroshahi H. Effect of GapSeal® as a Sealing Material on Microgap and Microleakage at External Hexagon Implant Connections Following Cyclic Loading: An In Vitro Study. J Res Dentomaxillofac Sci. 2018; 3 (3) :42-48
URL: http://jrdms.dentaliau.ac.ir/article-1-216-en.html

Volume 3, Issue 3 (Journal of Research in Dental & Maxillofacial Sciences Summer 2018) Back to browse issues page
Journal of Research in Dental and Maxillofacial Sciences
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