2016年2月26日 · An apical perforation occurs when the clinician does not respect the apical anatomy and passes endodontic files too aggressively through the apical constriction (Fig. 4). Figure...

This study illustrates a conservative approach to nonsurgical management of apical root perforation in maxillary first molars. A patient was referred for retreatment of a maxillary left first molar. Her chief complaint was dull pain while biting in ...

Apical third perforation: Apical third perforation occurs at the apical site of the root resulting from instrument inclination leading to canal straying away from root midline, which causes zipping or ledge formation.

An apical perforation occurs when the clinician does not respect the apical anatomy and passes endodontic files too aggressively through the apical constriction (Fig. 4).

Root perforation is an artificial communication between the root canal system to the supporting tissues of teeth or to the oral cavity. (AAE Glossary) Accidental root perforations, which may have serious implications, occur in approximately 2–12% of endodontically treated teeth, according to Ingle, Kerekes, Seltzer and many other authors.

2022年4月11日 · Apical perforations especially complicate conventional instrumentation and filling of root canals. Surgical repair of root perforations has been performed by reflecting a flap at the perforation site and packing a repair material into the cleaned and usually mechanically prepared defect (Alhadainy, 1994 ).

2022年11月6日 · Perforations in the apical area of roots result mainly from a failure to properly clean and shape the canal and are often initiated by blockages and ledges that cause endodontic instruments to deviate from the canal and gouge the dentine eventually creating a false pathway .

2022年12月6日 · Successful perforation management involves adequately sealing the breach, using the right material, and closing the perforation in the right place as soon as feasible. Perforation...

2016年9月10日 · Incautious preparations without taking into account the original anatomy and overzealous use of either rotary instruments or large tapered Gates Glidden burs can result in apical or crestal strip perforations. Large inflexible instruments used in curvatures can also result in zipping of the canal anatomy leading to perforations.

2016年2月26日 · An artificial perforation 2 mm in diameter will be made directly in the middle of the pulpal floor. 38% silver diamine fluoride (FAMAGAIN) will be applied on the walls of the perforation...