Biomaterial Database

Removal of overextended gutta-percha root canal fillings in endodontic failure cases. 1995

Z Metzger, and A Ben-Amar

Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Israel.

A procedure is proposed for the complete removal of an overextended root canal filling when associated with a root canal treatment failure. First, the gutta-percha is softened with xylene and removed to a distance of 2 to 3 mm short of the apex. Second, the remaining gutta-percha, which is preserved as solid as possible, is removed by a Hedstrom file. The file is extended 0.5 to 1.0 mm beyond the apex, firmly engages the gutta-percha and is slowly removed. In 17 of the 18 cases, this procedure successfully removed the overextended gutta-percha.

UI	MeSH Term	Description	Entries
D012086	Reoperation	A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery.	Revision, Joint,Revision, Surgical,Surgery, Repeat,Surgical Revision,Repeat Surgery,Revision Surgery,Joint Revision,Revision Surgeries,Surgery, Revision
D005119	Extravasation of Diagnostic and Therapeutic Materials	The escape of diagnostic or therapeutic material from the vessel into which it is introduced into the surrounding tissue or body cavity.	Extravasation of Contrast Media,Extravasation of Diagnostic, Therapeutic Materials,Contrast Media Extravasation
D006171	Gutta-Percha	Coagulated exudate isolated from several species of the tropical tree Palaquium (Sapotaceae). It is the trans-isomer of natural rubber and is used as a filling and impression material in dentistry and orthopedics and as an insulator in electronics. It has also been used as a rubber substitute.	Thermafil,Guttapercha,Ultrafil,Gutta Percha
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012390	Root Canal Therapy	A treatment modality in endodontics concerned with the therapy of diseases of the dental pulp. For preparatory procedures, ROOT CANAL PREPARATION is available.	Therapy, Root Canal,Canal Therapies, Root,Canal Therapy, Root,Root Canal Therapies,Therapies, Root Canal
D014992	Xylenes	A family of isomeric, colorless aromatic hydrocarbon liquids, that contain the general formula C6H4(CH3)2. They are produced by the destructive distillation of coal or by the catalytic reforming of petroleum naphthenic fractions. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)	Dimethylbenzenes,Xylene
D017211	Treatment Failure	A measure of the quality of health care by assessment of unsuccessful results of management and procedures used in combating disease, in individual cases or series.	Failure, Treatment,Failures, Treatment,Treatment Failures