Tomás Fichtel, MVDr, PhD; Michal Crha, MVDr; Erika Langerová, MVDr; Gerhard Biberauer, Dr med vet; Michal Vla ín, MVDr, PhD
Summary: This study compared several techniques of manual and power instrument supragingival scaling and subsequent polishing with different methods. Observations were made to determine if there was an optimal method of enamel surface treatment based on the efficacy of the polishing and damage to the enamel. The maxillary fourth premolar and canine teeth were used as experimental teeth. These teeth were extracted after treatment and immersed in 10 % buffered formalin solution for further processing and evaluation using electron microscopy. Our observations indicated that the most effective method for scaling and enamel protection during periodontal treatment was provided by power instrumentation followed by polishing using a soft polishing wheel with pumice paste. J Vet Dent 25 (4); 231 - 235, 2008
MingYu Li MD, PhD; Zheng Liu, MD
Summary: The purpose of this study was to evaluate the inhibitory effects of herb extracts on caries -related bacteria and glucan of dental plaque in vitro. Bacterial sensitivity tests were done using broth dilution, and the phenol sulphate method was used to assess glucan inhibition. The results showed that tannic acid could inhibit bacterial growth more effectively than other herb extracts. Eugenol showed a 46.87 ± 12.74 and 36.67 ± 6.30 % inhibitory effect on insoluble and soluble glucan synthesis, respectively. Cnidium, barbaloin, caryophyllin, and piperine had > 40.0 % inhibitory effect on soluble glucan synthesis. Both insoluble and soluble glucan synthesis of S. sobrinus were inhibited by eugenol and piperine. Eugenol and piperine were efficacious in inhibiting glucan synthesis making them desirable agents for oral care products. J Vet Dent 25 (4); 236 - 239, 2008
David A. Fagan, DDS; Duane E. Ullrey, PhD
Summary: A female coarse-haired wombat held in captivity at the San Diego Zoo from approximately 2 to 16 years-of-age developed a dental malocclusion as a consequence of tooth overgrowth. The incisor, premolar, and molar teeth in this species are classified as aradicular hypsodont and continue to grow throughout life, presumably to counter the abrasive character of the high fiber, high ash, and high silica natural diet. In this case, there was a developmental defect of the maxillary incisor teeth, preventing functional interaction of the maxillary and mandibular incisor teeth. In addition, the captive diet appeared to be insufficiently abrasive, resulting in overgrown and malaligned premolar and molar teeth that were progressively less effective in food mastication and impinged on the tongue and buccal mucosa resulting in soft tissue lesions. The wombat was humanely euthanized, and comparisons of skull appearance and tooth position were made with those features in a wild-caught zoological specimen from the Smithsonian Institution. J Vet Dent 25 (4); 240 - 244, 2008
Jenny Fricke, DVM; Kathy Linn, DVM; and James M. G. Anthony, DVM
Summary: A 4-month-old intact female golden retriever dog was presented with inability to open the mouth due to traumatic craniofacial deformation. Following a complete imaging workup with computed tomographic evaluation of the skull, the right zygomatic arch and ramus of the mandible were resected. The range of motion of the temporomandibular joint was increased from 2 to 6-cm. J Vet Dent 25 (4); 246 - 248, 2008
Kris Bannon, DVM; Larry Baker, DVM
Edward R. Eisner, DVM
Kevin Stepaniuk, DVM; Nancy Brock, DVM