Patient’s general dentist initiated treatment; but, was unable to negotiate canal beyond the coronal aspect. Clinical testing confirmed the presence of previously initiated treatment and symptomatic apical periodontitis. The CBCT frontal view showed evidence of two canals in the apical third.
The lingual canal was located and instrumented. The buccal canal was not negotiable with hand or rotary files, so the Sonendo GentleWave® procedure was used to augment cleaning and disinfection. The postoperative radiograph confirms that two canals and multiple portals of exit were cleaned and filled.