Oral Conditions > Infection / Inflammation > Oronasal Fistula

Oronasal Fistula

If your pet is experiencing an abnormal rate of sneezing, nasal discharge, and bad breath, he/she might have this condition.

What you need to know…
    • It is an abnormal opening between the oral and nasal cavity.
    • Usually occurs after an infection of or loss of a tooth (most commonly canine tooth).
    • May cause chronic nasal infections.

How an Oronasal Fistula may look:

Oronasal fistula
Oronasal fistula at the previous upper canine site


Possible Therapy / Treatment:

Surgical flap
Surgical flap used to close the site with absorbable sutures

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LEARN MORE about oronasal fistulas:

An oronasal fistula is an opening or communication between the oral and nasal cavity. This occurs secondary to periodontal disease or loss of any maxillary (upper) teeth, most commonly the canine tooth. Signs of this condition include sneezing, nasal discharge, and bad breath odor.

Oronasal fistula needs to be evaluated with dental x-rays for impacted tooth/root structures. Surgical repair is accomplished with a gingival flap, debridement of the site, preservation of blood supply to the flap and tension-free closure of the site for good healing.

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