Evaluating the Efficacy of Silver Nanoparticle Modified Fiber-Reinforced Composite Resin Space Maintainers in Controlling Lactobacillus Growth: A Randomized Clinical Trial

Document Type : Original Article

Authors

1 Faculty of dentistry , alazhar university

2 Pedodontics and Oral Health. , Faculty of Dental Medicine Al-Azhar University, Boys, Cairo.

3 egypt - cairo - nasr city -69 othman building

4 Department of Orthodontics Faculty of Dental Medicine, (Boys-Cairo), Al-Azhar University

5 Dental Biomaterials Department, Faculty of Dentistry (Boys. Cairo) Al-Azhar University. Cairo, Egypt.

6 Department of Medical Microbiology and Immunology , Faculty of Medicine (Grils), Al- Azhar University, Cairo, Egypt.

Abstract

Abstract
Objectives: The current study aimed to assess the effect of fiber-reinforced composite resin (FRCR) space maintainer modified with silver nanoparticles (AgNPs) on lactobacillus count in children's oral cavities. Subjects and methods: A sample of 30 patients with prematurely extracted first primary molars aged between 4 and 9 years from both genders were allocated and randomly divided into two equal groups (n = 15). Group I children were treated with FRCR space maintainer without adding AgNPs (Control group), while group II (Test group) children were treated with FRCR space maintainer modified with AgNPs. The samples of saliva were collected from the children before and after 3 and 6 months of the bonded space maintainers for microbiological assessment of the lactobacillus colonies. Results: There was a significant difference in Lactobacillus levels between both groups at the 3-month and 6-month. Conclusion: Silver nanoparticles at 0.05% concentration can provide antimicrobial activity against Lactobacillus level in the oral cavity of children when added to the composition of fiber-reinforced composite space maintainer.

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Al-Azhar Journal of Dental Science
Volume 28, Issue 2 - Serial Number 2
April - Pediatric Dentistry & Orthodontics Issue (Pediatric Dentistry, Orthodontics)
April 2025
Pages 335-341

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