Related Experiment Video
Updated: May 30, 2026

Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents
Published on: September 10, 2018
Modeling an economic evaluation of a salt fluoridation program in Peru
Rodrigo J Mariño1, Jorge Fajardo, Ana Arana
1Cooperative Research Centre for Oral Health Science, University of Melbourne, VIC, Australia. rmarino@unimelb.edu.au
Salt fluoridation is a cost-effective dental caries prevention program for children in Peru. This public health intervention offers significant health and economic benefits, saving money while preventing tooth decay.
Area of Science:
- Public Health
- Dental Epidemiology
- Health Economics
Background:
- Dental caries remains a significant public health issue globally.
- Preventive dental strategies are crucial for reducing disease burden and healthcare costs.
- Salt fluoridation is a recognized method for community-level fluoride delivery.
Purpose of the Study:
- To model the cost-effectiveness of a salt fluoridation program for dental caries prevention in children.
- To compare the societal costs and benefits of salt fluoridation versus no intervention in Arequipa, Peru.
Main Methods:
- Standard cost-effectiveness analysis using 2009 prices.
- Health outcomes measured as dental caries averted over 6 years.
- Societal costs included direct treatment, program, and productivity loss costs.
Main Results:
- Salt fluoridation for 25,000 children resulted in net savings of S/.11.95 per tooth averted.
- An annual investment of S/.0.32 per child yielded net savings of S/.11.95 per decayed/missing/filled tooth prevented.
Conclusions:
- Salt fluoridation presents significant health and economic advantages in the Peruvian context.
- The program is a cost-effective strategy for dental caries prevention.
- Findings support the implementation of salt fluoridation programs in similar settings.
Related Concept Videos
Impact of Pharmacokinetic–Pharmacodynamic Models: Regulatory Decisions
Study Designs in Epidemiology
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
Pharmacodynamic Models: Linear Concentration–Effect Model

