Sunday, April 17, 2022

4026. Oro-nasal fistulas in an 8-year-old poodle with cavities



2022 CASE STUDY IN A POODLE


WHAT IS A CARNASSIAL TOOTH ABSCESS?

A carnassial tooth abscess, also known as oro-nasal fistula is an infection of the roots of this tooth. There are many causes of tooth root abscesses including trauma from a blow to the tooth (leading to tooth fractures), fighting, chewing hard objects, to bacteria from periodontal disease.

TREATMENT

A tooth root abscess is a very painful condition and needs to be treated as soon as possible. There are only two options for treatment of an abscessed tooth. One option is root canal therapy (endodontic treatment) which can preserve the structure of the tooth. The other option is extraction.



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Dogs do suffer from cavities or holes in the tooth as shown in this RARE case. The dog had fractured his upper right 4th premolar tooth some weeks ago.

Late detection of cavities in the right upper premolar 4 had resulted in bacterial infection into the nasal sinuses. As a result two large seeping wounds appear below the eye. 

MAR 12, 2022. The owner sought treatment of itchy skin said to be caused by house moving. Dr Daniel diagnosed the common medical condition known as oro-nasal fistula or carnassial tooth abscess. He noted the cavity in the fractured left upper 4th premolar tooth. 

Treatment: Dental scaling and a course of antibiotics as usual in such cases. The owner completed the antibiotics but the facial wounds had not disappeared. Why? The reason is that bacterial infection causing oro-nasal abscess is still present. X-rays of the nasal sinuses are advised. It is up to the owner to permit further tests to assess further treatment procedures. 


UPDATES AND OTHER CASE STUDIES WILL BE ON THIS BLOG:
https://2010vets.blogspot.com/2022/04/4026-oro-nasal-fistulas-in-8-year-old.html




2015 CASE STUDY OF ANOTHER DOG.
Oro-nasal fistula or carnassial tooth abscess is a COMMON dental condition in older dogs. A VIDEO OF A CASE IN 2015 is at:
https://www.youtube.com/watch?v=PDODCySyijw










































 TREATMENT

1. Root canal treatment must be done by the specialist. This is expensive and not available in Singapore. In human, this treatment can cost over S$6,000 in Singapore. 

2. Extraction of pre-molar 4 if there are deep infections in the root. This condition is also called carnaissal tooth abscess.  Dental scaling showed teeth lined with tartar and periodontal diseases. 





Carnassial teeth are modified molars (and in the case of carnivorans premolars) which are adapted to allow for the shearing (rather than tearing) of flesh to permit the more efficient consumption of meat.


What Are the Signs of a Tooth Infection or Abscess in Dogs?

  • Oral discomfort or a toothache. Dental disease is painful! ...
  • Bad breath. Dental infections frequently cause halitosis (bad breath). ...
  • Drooling. ...
  • Decreased appetite. ...
  • Facial swelling.





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