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In Vitro Evaluation of The Effects Of Er,Cr:YSGG and Diode Lasers Used on Titanium Cylinder
Published on: June 6, 2025
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Lactam inhibiting Streptococcus mutans growth on titanium.
J G Xavier1, T C Geremias1, J F D Montero1
1Center for Research on Dental Implants (CEPID), School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianópolis/SC, 88040-900, Brazil.
Summary
Novel synthetic lactams effectively prevent bacterial biofilm formation on titanium surfaces. This discovery offers potential for new antimicrobial drugs to inhibit early bacterial growth on dental implants.
Area of Science:
- Biomaterials Science
- Microbiology
- Drug Discovery
Background:
- Bacterial biofilm formation on titanium (Ti6Al4V) surfaces poses a significant challenge in dental implantology.
- Streptococcus mutans is a key pathogen involved in early biofilm development.
- Developing strategies to inhibit initial bacterial adhesion is crucial for implant success.
Purpose of the Study:
- To evaluate the efficacy of novel synthetic lactams in preventing biofilm formation on titanium surfaces.
- To assess the impact of synthetic lactams on Streptococcus mutans adhesion and growth.
- To explore the potential of these compounds as antimicrobial agents for dental applications.
Main Methods:
- Titanium (Ti6Al4V) samples were incubated with Streptococcus mutans cultures.
- Synthetic lactam was introduced to assess its inhibitory effect on biofilm formation.
- Planktonic growth was measured using spectrophotometry.
- Biofilm formation was quantified via crystal violet staining and colony-forming units (CFU·ml(-1)).
- Scanning electron microscopy (SEM) was employed for visualizing biofilm structure.
Main Results:
- The presence of synthetic lactam significantly reduced adhered viable cells to approximately 1.5×10(2) CFU/ml compared to 4×10(2) CFU/ml in its absence.
- Synthetic lactams demonstrated considerable activity in inhibiting biofilm formation on titanium surfaces.
- The compound effectively targeted the initial stages of bacterial biofilm development.
Conclusions:
- Novel synthetic lactams show significant potential as antimicrobial agents against Streptococcus mutans biofilm formation on titanium.
- These compounds could be developed into drugs to prevent early bacterial colonization on dental implant abutments.
- The findings support the use of synthetic lactams for enhancing the success of dental implants by combating biofilm formation.

