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P. 1960

980   Tooth Fractures


                                                                                   ○   Acute: broad-spectrum antibiotics (e.g.,
                                                                                     amoxicillin 20 mg/kg PO q 8h for 10-14
  VetBooks.ir                                                                    •  Tonsillar lymphoma (pp. 607 and 609)
                                                                                     days)
                                                                                   ○   Chronic: based on C&S results
                                                                                 •  SCC: surgical excision followed by chemo-
                                                                                   therapy and radiation therapy (p. 939)
                                                                                  PROGNOSIS & OUTCOME

                                                                                 •  Tonsillitis: good prognosis, usually resolves
                                                                                   with underlying disease
            A                                     B                              •  Neoplasia: poor long-term prognosis

           TONSILLAR DISORDERS  A, Intraoral view of a dog with marked bilateral enlargement of the tonsils    PEARLS & CONSIDERATIONS
           (arrows). B, Intraoral view of tonsils in a normal dog for comparison.
                                                                                 Comments
           Differential Diagnosis              TREATMENT                         •  Therapeutic intervention for enlarged tonsils
           A detailed list of potential causes is provided                         is rarely required.
           on p. 1287.                        Treatment Overview                 •  The  most  common  cause  of  symmetrical/
                                              •  Treat the underlying disease.     bilateral tonsillar enlargement is a reactive
           Initial Database                   •  Tonsillectomy  is  indicated  only  for  the   change in response to oral exposure to
           •  CBC,  serum  biochemistry  profile,  and   following:                antigen, such as the pet licking his/her anal
            urinalysis to identify underlying systemic   ○   Chronic recurrent tonsillitis unresponsive   sacs or genitalia. Diagnostic investigation and
            disease                               to antibiotic therapy and elimination of   treatment should focus on these processes
           •  Feline  leukemia  virus  (FeLV)  and  feline   source of antigen (e.g., licking infected area)  first and then on the tonsils only if necessary.
            immunodeficiency virus (FIV) testing of cats  ○   Marked tonsillar enlargement interfering
                                                  with swallowing or breathing   Technician Tips
           Advanced or Confirmatory Testing     ○   Neoplasia: SCC               If tonsillar enlargement is observed during
           •  Bacterial culture and susceptibility (C&S) or                      endotracheal intubation for any anesthetic
            virus isolation in cases of primary tonsillitis   Acute and Chronic Treatment  procedure,  notify  the  veterinarian  so  that
            that fail to respond to routine antibiotics  •  Incidentally discovered bilateral/symmetrical   investigation can be made into cause.
           •  If peripheral lymph nodes are enlarged, FNA   tonsillar enlargement is often most appro-
            of representative nodes for cytologic exam   priately only monitored (watchful waiting)   SUGGESTED READING
            can identify lymphoma.              while the underlying cause is sought and   Radlinsky  MG:  Surgery  of  the  oral  cavity  and
           •  General  anesthesia  and  tonsillar  FNA   treated.                  oropharynx. In Fossum TW, editor: Small animal
            cytologic exam or biopsy            ○   Remove any recognized foreign body.  surgery, ed 4, St. Louis, 2013, Elsevier, pp 394-396.
            ○   Specific  indications:  unilateral  tonsillar   ○   Address dental and periodontal disease.
              enlargement or tonsillar enlargement   ○   Address distant infection/inflammation   AUTHOR: Peter M. Foley, MSc, DVM, DACVIM
                                                                                 EDITOR: Leah A. Cohn, DVM, PhD, DACVIM
              that does not resolve (or worsens) despite   and minimize licking.
              identification and treatment of underlying   •  Primary tonsillitis with clinical signs and no
              disease                           identifiable cause




            Tooth Fractures                                                                        Client Education
                                                                                                         Sheet

                                                                                 Clinical Presentation
            BASIC INFORMATION                 •  Cats: more common in canine teeth (due
                                                to trauma) or any teeth weakened by tooth   DISEASE FORMS/SUBTYPES
           Definition                           resorption (p. 982)              American Veterinary Dental College (AVDC)
           Breaking of enamel, dentin, and/or cementum                           Tooth Fracture Classification (www.avdc.org):
           of  the  crown  or  root  (or  both)  of  a  tooth;   RISK FACTORS    •  Enamel  infraction:  incomplete  fracture
           common in dogs and cats            •  Dogs: chewing on bones, ice cubes, nylon   (crack) of the enamel without loss of tooth
                                                toys, cow hooves, rocks, deer antlers, and cages  substance
           Synonyms                           •  Cats: high-rise syndrome, vehicular trauma,   •  Enamel fracture: fracture with loss of crown
           •  Dental fracture                   tooth resorption                   substance confined to the enamel
           •  Slab  fracture:  fracture  of  the  labial/buccal                  •  Uncomplicated crown fracture: fracture of
            (or lingual/palatal) surface of a tooth  ASSOCIATED DISORDERS          the crown that does not expose the pulp
                                              Attrition (wear from tooth-to-tooth contact),   •  Complicated crown fracture: fracture of the
           Epidemiology                       abrasion  (wear  from  contact  of  teeth  with   crown that exposes the pulp
           SPECIES, AGE, SEX                  nondental materials), pulpitis (pulpal inflam-  •  Uncomplicated crown-root fracture: fracture
           Any age (including deciduous teeth)  mation),  displacement  injuries  (tooth  luxa-  of the crown and root that does not expose
           •  Dogs: canine and maxillary fourth premolar   tion or avulsion), tooth resorption (p. 982),     the pulp
            teeth commonly affected (due to aggressive   and  caries  (bacterial  infection  causing  tooth   •  Complicated crown-root fracture: fracture
            chewing or other trauma)          demineralization)                    of the crown and root that exposes the pulp

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