TY - GEN AU - Frigstad,V TI - [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] SN - 0029-2303 PY - 1982///0326 KW - Dental Clinics KW - Dental Instruments KW - standards KW - Quality Control KW - Root Canal Therapy KW - instrumentation N1 - Publication Type: Journal Article ER -