Cochran, David L. (David Lee), 1952- <br/><br/>
Plaque and calculus removal :  considerations for the professional / 
David L. Cochran 
 - [Place of publication not identifed] :  [publisher not identified],  c1994 
<br/><br/> Plaque and calculus removal : considerations for the professional, Plaque 
<br/><br/><label>ISBN: </label>867152850 
<br/><br/><label>LC Class. No.: </label>RK 60.7 .C63 1994