[MARMAM] New paper on Dental pathology in dolphins

Carolina Loch carolinaloch at yahoo.com.br
Mon May 23 16:53:41 PDT 2011


Dear MARMAM subscribers: 

   

We are pleased to
announce the publication of the following paper in Diseases of Aquatic Organisms:
 

 Dental pathology in dolphins (Cetacea: Delphinidae) from the southern coast of Brazil
Carolina Loch, Liliane J. Grando, Jules A. Kieser, Paulo C. Simões-Lopes

doi:10.3354/dao02339
 ABSTRACT: Pathological processes observed in 
the stomatognathic systems of mammalian species are a useful source of 
information about the habits, evolution and general health of such 
animals. Studies of pathological conditions on teeth are common in 
humans and other primates, but rare in wild animals in general and 
marine mammals in particular. For cetaceans, previous studies provided 
scanty records of dental anomalies in a few species. This is the first 
broad and systematic inventory of dental pathology in dolphins. 
Specimens stored at scientific collections from the southern coast of 
Brazil were visually inspected under a stereoscopic microscope using a 
dental explorer. Diagnosis of lesions and anomalies followed literature 
descriptions. Abnormalities such as caries-like lesions, mineralized 
calculus deposits, dental erosion, enamel anomalies (hypoplasia and 
exogenous pigmentation), root resorption, germination and other shape 
anomalies, were diagnosed in the delphinids Sotalia guianensis, Delphinus capensis, Stenella frontalis, Stenella coeruleoalba, Lagenodelphis hosei, Pseudorca crassidens, Orcinus orca, Steno bredanensis and Tursiops truncatus.
 Endogenous causes may be related to the occurrence of certain 
conditions, but the aetiology of caries-like lesions and calculus 
accumulation is still unknown for cetaceans. The diagnosis of alveolar 
anomalies and other bone lesions in specimens with dental pathology lead
 us to believe these lesions modify the integrity of the periodontal 
ligament and bony tissues, adding to the burden of morbidity of affected
 animals.


KEY WORDS: Caries-like lesions · Dental calculus · Erosion · Geminated teeth · Marine mammals
 


 For subscribers
to Diseases of Aquatic Organisms, it can be downloaded from:
 

http://www.int-res.com/abstracts/dao/v94/n3/p225-234/

Or if you are
interested in a pdf, please email request to:

 

carolinaloch at yahoo.com.br 



 

Best regards, 


 

  MSc. Carolina Loch Silva 
PhD Candidate
Geology Department, University of Otago
Dunedin 9054, New Zealand
http://www.otago.ac.nz/geology/people/students/loch/index.html
&
Laboratório de Mamíferos Aquáticos UFSCFlorianópolis, SC - Brasil 
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