Philips, E <br/><br/>
The classification of smile patterns.  [electronic resource] 

 -  Journal (Canadian Dental Association)  May 1999 
 - 252-4 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0709-8936 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification<br/>Esthetics, Dental<br/>Female<br/>Humans<br/>Male<br/>Smiling--physiology<br/>Terminology as Topic