Endodontic Disease in a Managed Population of California Sea Lions (Zalophus californianus): Diagnosis, Treatment, and Outcome
IAAAM 2012
Carolina R. Le-Bert1; Allison W. Fitzpatrick2; Shawn P. Johnson1; Betsy A. Lutmerding1; Jennifer M. Meegan1; Forrest M. Emory-Gomez1; Eric D. Jensen3
1National Marine Mammal Foundation, San Diego, CA, USA; 2Allison Woody, DVM, San Diego, CA, USA; 3Navy Marine Mammal Program, SSC Pacific, San Diego, CA, USA

Abstract

Endodontic disease, or pathology affecting the pulp tissue of teeth, is a commonly treated condition in human and veterinary dentistry. Reports of dental pathology in wild and managed populations of pinniped species include malformed teeth, supernumerary teeth, attrition, fractures involving the crown and/or root, periapical lesions, periodontal disease, and malocclusion.1-4,6-8 In a population of California sea lions at the Navy Marine Mammal Program, dental pathology commonly seen by clinicians included tooth fractures and abrasions. Occasionally, purulent exudate was observed from the pulp chamber of affected teeth. Periapical abscesses, identified via voluntary oral radiography techniques, usually occurred secondary to these findings. In 4 animals, endodontic restoration techniques were used to treat the abscessed teeth.5 One to two years later, draining tracts associated with some of the treated teeth developed, along with evidence of periapical abscessation on repeat radiographs. In 2 animals, dental extractions of abscessed teeth were performed. Recheck radiographs showed healed extraction sites. The pathophysiology of endodontic disease seen in this population of California sea lions indicates extraction of the affected teeth is the appropriate treatment. Potential sequelae of untreated endodontic disease include osteomyelitis and hematogenous spread of bacteria to other organ systems.3,6 Successful identification and intervention of endodontic disease in managed populations of California sea lions may improve quality of life and decrease the occurrence of sequelae associated with endodontic disease.

Acknowledgements

The authors would like to thank the trainers, veterinary technicians, and veterinarians at the Navy Marine Mammal Program, especially the U.S. Army Animal Care Specialists, for their assistance with the treatment and care of the animals. A special thanks to those who have contributed to these cases, including, but not limited to Drs. Cynthia Smith, Stephen Cassle, Nate Daughenbaugh, Elizabeth Hoffman, Steven Holmstrom, Dave Fagan, James Oosterhuis, and Sam Ridgway.

References

1.  Abott C, Verstraete FJM. The dental pathology of northern elephant seals (Mirounga angustirostris). J Comp Pathol. 2005;132:169–178.

2.  Erb E, Shaughnessy PD, Norman RJ. Dental and mandibular injury in an Antarctic fur seal, Arctocephalus gazella, at Heard Island, Southern Ocean. J Wildlife Dis. 1996;32(2):376–380.

3.  Gulland FMD, Lowenstine LJ, Spraker TR. Noninfectious diseases. In: Dierauf LA, Gulland FMD, editors. CRC Handbook of Marine Mammal Medicine. 2nd edition. Boca Raton, FL: CRC Press; 2001:532–533.

4.  Holmstrom SE. Dental techniques in marine mammals. IAAAM 41st Annual Conference Proceedings, 2010,Vancouver, BC, Canada.

5.  Johnson S, Fagan D, Oosterhuis J, Jensen E. Advanced technologies and methodologies in diagnosis and treatment of endodontic disease in California sea lions. Annual Proceedings of the American Association of Zoo Veterinarians, Los Angeles, CA; 2008.

6.  Junin M, Castello HP. Osteomyelitis of the skull in a leopard seal, Hydrurga leptonyx. Mar Mammal Sci. 1995;11(3):403–406.

7.  Labrada-Martagón V, Aurioles-Gamboa D, Castro-González I. Relation of dental wear to the concentrations of essential minerals in teeth of the California sea lion Zalophus californianus californianus. Biol Trace Elem Res. 2007;115:107–126.

8.  Loch C, Simões-Lopes PC, Drehmer CJ. Numerical anomalies in the dentition of southern fur seals and sea lions (Pinnipedia: Otariidae). Zoologia. 2010;27(3):477–482.

  

Speaker Information
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Carolina R. Le-Bert
National Marine Mammal Foundation
San Diego, CA, USA


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