Horn, D J <br/><br/>
Sphere spectrophotometer versus human evaluation of tooth shade.  [electronic resource] 

 -  Journal of endodontics  Dec 1998 
 - 786-90 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>0099-2399 
<br/><br/><label>Standard No.: </label>10.1016/S0099-2399(98)80002-2  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Color--standards<br/>Evaluation Studies as Topic<br/>Humans<br/>Observer Variation<br/>Reference Standards<br/>Reproducibility of Results<br/>Spectrophotometry--instrumentation<br/>Tooth--chemistry<br/>Tooth Bleaching<br/>Tooth Discoloration--diagnosis