Frigstad, V <br/><br/>
[The number of root canal instruments and an evaluation of reuse. The number of file fractures in a general practice during a 5-year period].  [electronic resource] 

 -  Den Norske tannlaegeforenings tidende  Dec 1981 
 - 525-6 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0029-2303 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dental Clinics<br/>Dental Instruments--standards<br/>Quality Control<br/>Root Canal Therapy--instrumentation