Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2024 Feb;16(Suppl 1):S792-S793.
doi: 10.4103/jpbs.jpbs_1012_23. Epub 2023 Dec 20.

Assessment of Microgap and Bacterial Leakage of Two Types of Internal Implant-Abutment Union

Shaik Riyaz Basha  1 , Praveena Channamsetty  2 , Divya Janapati  1 , Satyavathi Badugu  1 , Sravalli Kodipalli  1 , Kavya Sri Ireddy  1 , Nirban Mitra  1
Affiliations

Assessment of Microgap and Bacterial Leakage of Two Types of Internal Implant-Abutment Union

Shaik Riyaz Basha et al. J Pharm Bioallied Sci. 2024 Feb.

Abstract

Objective: The current research was done to assess microbial seepage of two types of internal implant-abutment connections.

Materials and methods: Twenty dental implants are categorized into two groups. Group A fixtures with an internal hexagonal geometry and group B fixtures with a tri-lobe internal connection. All implant-abutment assemblies underwent a three-week incubation period at 37°C in sterile tubes containing 5 mL of Staphylococcus aureus broth culture. Through the use of Gram stain and biochemical processes, the resultant colonies were recognized.

Results: The mean Log10 colony forming unit (CFU) in group A was 8.4 and in group B was 7.2. The variation between both groups was found to be considerable (P < 0.05). Microgap was more in group B compared to group A.

Conclusion: Bacteria may infiltrate the small area between the implant and the abutment. Compared to dental implant fixtures with a tri-lobe internal connection, there was a noticeably higher Log10 CFU in dental implant fixtures with an internal hexagonal geometry.

Keywords: Bacteria; Staphylococcus aureus; dental implants; leakage; microgap.

PubMed Disclaimer

Conflict of interest statement

There are no conflicts of interest.

References

    1. do Nascimento C, Barbosa RE, Issa JP, Watanabe E, Ito IY, Albuquerque RF., Jr Bacterial leakage along the implant-abutment interface of premachined or cast components. Int J Oral Maxillofac Surg. 2008;37:177–80. - PubMed
    1. O’Mahony A, MacNeill SR, Cobb CM. Design features that may influence bacterial plaque retention: A retrospective analysis of failed implants. Quintessence Int. 2000;31:249–56. - PubMed
    1. da Silva-Neto JP, Nóbilo MA, Penatti MP, Simamoto PC, Jr, das Neves FD. Influence of methodologic aspects on the results of implant-abutment interface microleakage tests: A critical review of in vitro studies. Int J Oral Maxillofac Implants. 2012;27:793–800. - PubMed
    1. Khajavi A, Mohseni S, Peymani A, Amjadi M. In Vitro bacterial leakage at the implant-abutment connection of two dental implant systems with internal connection. Front Dent. 2020;17:32. - PMC - PubMed
    1. Faria R, May LG, de Vasconcellos DK, Maziero Volpato CÂ, Bottino MA. Evaluation of the bacterial leakage along the implant-abutment interface. J Dent Implant. 2011;1:51–7.

LinkOut - more resources