Effectiveness of GapSeal on Microgap and Microleakage at Internal-Hexagon Implant Platform after Cyclic Loading

Shahbaz Nasser Mostofi, Roozbeh Pahlevan, Zahra Mohtasham Rad, Hooman Houshangi, Farnaz Keyhanlou, Sahar Fazel, Tehran Dental Branch, Islamic Azad University, Tehran, Iran, Tehran Dental Branch, Islamic Azad University, Tehran, Iran, Tehran Dental Branch, Islamic Azad University, Tehran, Iran, Tehran Dental Branch, Islamic Azad University, Tehran, Iran, Tehran Dental Branch, Islamic Azad University, Tehran, Iran, Tehran Dental Branch, Islamic Azad University, Tehran, Iran
2019 journal of research in dental sciences  
and AIM: Microgap formation at implant-abutment connection is one of the complications leading to mechanical and biological failure and inflammation around implants. This study aimed to investigate the influence of GapSeal as a sealing material on the extent of microgap and microleakage at the internal hexagon implant platform. Materials and Methods: Sixteen implants with an internal-hexagon connection (Biohorizon, internal hexagon) were employed in this in-vitro experimental study. All
more » ... 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.
doi:10.29252/jrds.16.1.34 fatcat:hjyggou7qngffivohduz3wm2zm