![]() During his time in dental school, he learned traditional hand-filing methods, such as the “step-back” technique. Step-back versus crown-downīrian attended the University of Maryland Dental School from 1993 to 1997, and then performed his endodontic residency from 1997 to 1999. Since many veterinary dentists are utilizing rotary and reciprocating file technology, I wanted to get Brian’s input on how its use has affected his practice. In addition to having a unique dentist’s office (and one that emphasizes the soothing effects of music), Brian has a passion for cutting-edge techniques and equipment in endodontics. Hall, DDS, who is an endodontist for humans in Frederick, Md. I recently had a conversation with my cousin, Brian D. 1,2 Let’s delve further into what many consider to be the most important step of the orthograde root canal procedure: instrumenting the canal. Then we discussed the steps associated with standard (orthograde) root canal therapy, including access, instrumenting the canal (cleaning and shaping), obturation, and restoration. ![]() To recap the article, we looked at how certain endodontically diseased teeth may be best treated by root canal therapy, rather than extraction due to the invasiveness of removing functionally important teeth in dogs and cats. In my March 2019 column, we discussed the rationale and the steps associated with performing a root canal procedure. By John Lewis, VMD, FAVD, DAVDC Figure 1: Intraoperative radiograph of a rotary file being used in the left mandibular canine tooth (# 304) during the instrumentation stage of an orthograde root canal therapy.
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