[Observation on volume changes of phenolaldehyde resin in laboratory animal root canals].
D000818:Animals; D004285:Dogs; D005557:Formaldehyde; D010636:Phenols; D011108:Polymers; D012387:Root Canal Filling Materials; D012390:Root Canal Therapy
D010636:Phenols; D011108:Polymers; D012387:Root Canal Filling Materials; D005557:Formaldehyde; C011529:phenol-formaldehyde resin