Nield_Gehrig, Jill. S <br/><br/>
Fundamentals of periodontal instruments 
Gehrig-Nield,  Jill.  S 
 - 4th ed. 
 - Philadelphia  Lippincett Williams  2000 
 - xviii, 548p,:  ill.: Pbk.; 
<br/><br/><label>ISBN: </label>0781728606 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dental instruments and apparatus--programmed<br/>Dental hygiene--programmed instruction