What's the question?
Formulate the problem into a question that can be answered
Should I get fluoride varnish treatments for my child?
Do children under 12 who have two treatments within 12 months of 5% fluoride varnish have fewer dental caries than those who did not have the treatment?
Think of different concepts or words that can be used to search
Synonyms are useful
|Dental cavities||Infants||Topical fluoride|
Where to search
Select the database or search engine
Different databases or search engines will provide different results.
Consider what type of information you're looking for.
You wouldn't go to Weather.com to look for movie schedules.
Census.gov is a good place to find demographic information [how many 18 - 24 year olds who lived with their parents in 2012 did not have health insurance?]
Medlineplus.gov has reliable accurate health information for patients
PubMed is the best place to look for scientific literature
Perform the search
Terms can be combined using AND OR NOT
OR will retrieve articles with either term
AND produces articles with both