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

Shaik Riyaz Basha; Praveena Channamsetty; Divya Janapati; Satyavathi Badugu; Sravalli Kodipalli; Kavya Sri Ireddy; Nirban Mitra

doi:10.4103/jpbs.jpbs_1012_23

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

J Pharm Bioallied Sci. 2024 Feb;16(Suppl 1):S792-S793. doi: 10.4103/jpbs.jpbs_1012_23. Epub 2023 Dec 20.

Authors

Shaik Riyaz Basha¹, Praveena Channamsetty², Divya Janapati¹, Satyavathi Badugu¹, Sravalli Kodipalli¹, Kavya Sri Ireddy¹, Nirban Mitra¹

Affiliations

¹ Department of Prosthodontics, Crown and Bridge, Malla Reddy Institute of Dental Sciences, Hyderabad, Telangana, India.
² Department of Prosthodontics, Crown and Bridge, Mamata Institute of Dental Sciences, Bachupally, Hyderabad, Telangana, India.

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.