The case of the stertorous kittyFebruary 27, 2020There are few things in life more satisfying than removing a nasopharyngeal polyp in a cat that’s having trouble breathing, writes John Lewis.
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Piezosurgery in dentistry and oral surgeryFebruary 19, 2020Recent advances in ultrasonic piezoelectric technology have allowed for clinical improvements in cutting and shaping bone.
Talking shop with a human endodontist: Rotary and reciprocating endodontic filesJanuary 7, 2020Since many veterinary dentists are utilizing rotary and reciprocating file technology, John Lewis decided to get input from an endodontist for humans on how its use has affected his practice.
Orofacial manifestations of BDLDNovember 12, 2019BDLD: four letters often listed at the top of the sheet of an emergency room visit as the presenting problem.
When it's more than a dental problemOctober 17, 2019We had a tough day at the clinic recently. Working in the specialty of dentistry and oral surgery, it’s rare we need to broach the topic of euthanasia.
Cone-beam computed tomography in dentistry and oral surgeryMay 24, 2019Computed tomography (CT) has revolutionized our ability to detect subtle hard and soft tissue abnormalities of the maxillofacial region. Cone-beam computed tomography (CBCT) is creating much buzz amongst veterinary dentists when it comes to dental/maxillofacial diagnostic tools. What is the difference between CBCT and conventional CT? Rather than a collection of thin, closely spaced slices obtained with a fan-shaped beam of conventional CT, CBCT has both an X-ray generator and detector that rotates around the patient, capturing data with a cone-shaped beam. Both modalities can be used to create very helpful 3-D reconstructions of the areas of interest, although CBCT provides increased detail of dentoalveolar structures. One veterinary study compared CBCT's diagnostic image quality with that of 64-multidetector row CT sagittal slices. Four blinded evaluators compared CBCT and 64-multidetector row CT images. Trabecular bone, enamel, dentin, pulp cavity, periodontal ligament space, lamina dura and "overall impression" were scored. Images captured with CBCT were found to be significantly superior in image quality when compared to images acquired with 64-multidetector CT in all categories.1 Inka, the jaguar My first experience with CBCT was with a patient from the Elmwood Park Zoo in Norristown, Pa. Inka is a five-year-old jaguar that fractured …
Surgical endodontics: When all else fails...May 6, 2019In my previous two columns, we looked at conventional (orthograde) root canal therapy, along with vital pulp therapy. This time, we will discuss surgical (retrograde) endodontics. In instances where orthograde root canal therapy has failed, a decision needs to be made to either perform a second orthograde root canal therapy or to proceed to the next step: surgical endodontics. Extraction would be a third option for a failed root canal procedure if the owner no longer chooses to salvage the endodontically diseased tooth. Besides its use as a treatment when orthograde root canal therapy fails, retrograde root canal therapy may be the chosen course of action when an instrument breaks off while performing an orthograde procedure. Instruments most likely to break off in the canal include Lentulo spiral paste fillers, barbed broaches, and rotary files. Sometimes the detached instrument portion can be entombed in endodontic filling material during orthograde obturation, but if not, a retrograde procedure may be warranted. The procedure What is surgical root canal therapy? A surgical approach is made over the apical portion of the root, and bone is carefully removed to expose the root area (Figure 1). The apical 4 mm of the root is surgically …
The other ED: Ectodermal dysplasiaJuly 8, 2018From time to time, I will pull out a “dental zebra” from the archives: a case that you won’t see every day, but you’ll see it at least once in your career.
