Reconnecting Practicing Hygienists with the Nation's Leading Educators and Researchers.


Developing a Critical Eye

...treatment? Are there any built-in biases that may account for the outcome of the study? Who funded the study? Was it the company manufacturing the product, the federal government, or...

Managing Caries Risk in Adults

...used to measure root caries. In 1980, the root caries index (RCI) was introduced to address limitations associated with the DFS index, which does not account for the number of...

Refund Policy

...your account has expired, we will gladly exchange it for a current course of your choice that matches the credit hours of your expired course. To request an exchange, please...

Frequently Asked Questions

...user account? Easy! Click on the blue MENU icon at the top right-hand corner of the website. You will then see a drop-down menu appear. Simply click on “Dashboard” OR...

Privacy Policy

...provided by you, which may include your name, address, telephone number, e-mail address, billing information, credit card or other financial account information, and certain other personal, professional and demographic information...

20 Amazing Facts About Fluoride

...than 5 mg/kg), fluoride can be toxic. A lethal dose may be as low as 15 mg/kg.20,21 Children age to 6 account for more than 80% of reported cases of...

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