Microleakage at the Different Implant Abutment Interface: A Systematic Review ZE10-ZE15
Dr. Sunil Kumar Mishra,
Reader, Department of Maxillofacial Prosthodontics and Implantology,
Peoples College of Dental Sciences and Research Centre, Bhopal, Madhya Pradesh, India.
E-mail : firstname.lastname@example.org
Introduction: Presence of gap at the implant-abutment interface, leads to microleakage and accumulation of bacteria which can affect the success of dental implants.
Aim: To evaluate the sealing capability of different implant connections against microleakage.
Materials and Methods: In January 2017 an electronic search of literature was performed, in Medline, EBSCO host and Pubmed data base. The search was focused on ability of different implant connections in preventing microleakage. The related titles and abstracts available in English were screened, and the articles that fulfilled the inclusion criteria were selected for full text reading.
Results: In this systematic review, literature search initially resulted in 78 articles among which 30 articles only fulfilled the criteria for inclusion and were finally included in the review. Almost all the studies showed that there was some amount of microleakage at abutment implant interface. Microleakage was very less in Morse taper implants in comparison to other implant connections. Majority of studies showed less microleakage in static loading conditions and microleakage increases in dynamic loading conditions.
Conclusion: External hexagon implants failed completely to prevent microleakage in both static and dynamic loading conditions of implants. Morse taper implants were very promising in case of static loading and also showed less microleakage in dynamic loading conditions. Torque recommended by manufacturer should be followed strictly and zirconia abutments were more prone to microleakage than titanium abutments and should be avoided.