|1||NCT01615237||Completed||Dentistry United to Extinguish Tobacco||
||3207||All||18 Years and older (Adult, Senior)||NCT01615237||1R01CA162035-01A1||DUET||February 1, 2013||September 2017||September 2017||June 8, 2012||September 25, 2017||
|2||NCT00297700||Unknown †||Implementing Tobacco Control in Dental Practice||
||2800||All||18 Years and older (Adult, Senior)||NCT00297700||5R01DA017974||May 2004||April 2007||February 28, 2006||January 11, 2017||
† Study has passed its completion date and status has not been verified in more than two years.