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Clinical Trials/NCT05221749
NCT05221749TerminatedPhase 3

The Antibacterial Effect of Nanosilver Fluoride in Relation to Caries Activity in Primary Teeth: a Randomized Controlled Clinical Trial

Nour Ammar, BDS1 site in 1 country50 target enrollmentStarted: March 15, 2022Last updated:
Conditions
Interventions
Drugs

Trial Snapshot

Phase
Phase 3
Status
Terminated
Sponsor
Enrollment
50
Locations
1
Primary Endpoint
Antibacterial Effect in Unstimulated Saliva Samples

Study Overview

Brief Summary

To assess the antibacterial effect of Nanosilver Fluoride (NSF) in relation to caries activity in dentin caries lesions of primary teeth in comparison to Silver Diamine Fluoride (SDF).

Detailed Description

Fifty children aged 4 to 6 years old with active dentin caries lesions (score 5 according to International Detection and Assessment System (ICDAS II) criteria) will be enrolled in the study. They will be equally and randomly allocated into 2 groups: a group receiving NSF and a control group receiving SDF treatment. Microbiological samples will be collected from the carious lesions and from unstimulated saliva at the baseline and at the 1 and 3 months' follow-up appointments. Bacterial counts will be assessed using Mitis Salivarius agar (selective culture media for S. mutans) and Rogosa agar (selective culture media for lactobacilli), and the results will be expressed in colony-forming units. Data regarding the children's oral health will be collected and their dmf index will be scored. The arrest of active carious lesions will be measured at the follow-up appointments according to ICDAS II criteria.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
Double (Participant, Outcomes Assessor)

Eligibility Criteria

Ages
1 Year to 12 Years (Child)
Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • The presence of at least one active carious lesion on a primary tooth.
  • Completion of an informed consent to participate in the study.
  • Exclusion criteria:
  • Children reporting spontaneous or elicited pain from caries or showing any signs of pulpal infection, swelling, abscess, obvious discoloration of the tooth, or premature mobility.
  • Reported usage of local or systemic antibiotics, chlorhexidine or fluoride mouthwashes within the last 2 weeks.
  • Children presenting with special health care needs or undergoing medical treatment for chronic or acute diseases affecting salivary flow.
  • Allergy or sensitivity to silver or any of the materials included in the study.
  • Child weight less than 10 Kg (to avoid concerns for toxicity).

Exclusion Criteria

  • Not provided

Arms & Interventions

Silver diamine fluoride

Active Comparator

These active caries lesions will receive silver diamine fluoride treatment

Intervention: Silver diamine fluoride (Drug)

Nanosilver fluoride

Experimental

These active caries lesions will receive nanosilver fluoride treatment

Intervention: Nanosilver Fluoride (NSF) (Drug)

Outcomes

Primary Outcomes

Antibacterial Effect in Unstimulated Saliva Samples

Time Frame: 1 months

Measuring the change in prevalence of cariogenic bacteria using standard microbiological culturing methods, outcome assessment will be done using colony forming units (CFU) from every sample collected. Samples will be collected before and after the intervention application.

Antibacterial Effect in Active Dental Caries Lesions

Time Frame: 1 month

Measuring the percent change in prevalence of cariogenic bacteria using standard microbiological culturing methods, outcome assessment will be done using colony forming units (CFU) from every sample collected. Samples will be collected immediately before application of the intervention (baseline) and one month after the intervention application (1 month follow-up). The CFU counts will be used to calculate the percentage change in bacterial prevalence which will be used for assessment and reporting results

The Relation Between the Antibacterial Activity and the Caries Activity in Dental Caries Lesions

Time Frame: 1 month

A statistical analysis will be done to correlate between the change in number of available cariogenic bacteria from baseline to 1 month (measured in colony forming units) and the caries activity of the lesion (as specified by the international caries detection and assessment system (ICDAS II) criteria.

Secondary Outcomes

  • The Relation Between the Antibacterial Activity and the Caries Activity in Dental Caries Lesions(3 month)
  • Antibacterial Effect in Unstimulated Saliva Samples(3 months)
  • Antibacterial Effect in Active Dental Caries Lesions(3 month)

Investigators

Sponsor
Nour Ammar, BDS
Sponsor Class
Other
Responsible Party
Sponsor Investigator
Principal Investigator

Nour Ammar, BDS

Instructor

Alexandria University

Study Sites (1)

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