Part 8: Combining (continued)

Details of how we did the searches (prior to combining using "AND")

We typed "caries prevention" and checked "Map Term to Subject Heading":

caries prevention

Ovid mapped this to a number of Subject Headings:

Your term mapped to the following...

There was no Subject Heading specifically for caries prevention, so the best Subject Heading for our topic was Dental Caries. By clicking it, we viewed its Tree, which showed there were also more specific Subject Headings, for specific types of caries:

Dental Caries tree

We exploded the Subject Heading Dental Caries, so as to include the more specific Subject Headings too:

Your term mapped to the following...

Then, in the list of possible subheadings for Dental Caries, we noticed Prevention & Control, which was just what we needed -- so we checked it:

Subheadings for : exp Dental Caries

We got 1707 results:

exp Dental Caries/pc [Prevention & Control] - 1707

Next, we typed our second search:


Our term "cost-effectiveness" mapped to the Subject Heading Cost-Benefit Analysis:

Your term mapped to the following...

We clicked this Subject Heading to view its Tree and saw that there weren't any more specific Subject Headings below Cost-Benefit Analysis, so there was no need to EXPLODE.

Cost-Benefit Analysis tree

After clicking "Continue", we viewed the subheadings and opted to include them all:

Cost-Benefit Analysis

We got 17,741 articles:

Search History

Return to Combining using "AND"


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