Oronasal Fistula Treatment for Pets in Beaverton, OR
An oronasal fistula is an abnormal opening between the mouth and the nasal cavity. It allows food, water, and bacteria to pass into the nose, causing chronic sneezing, nasal discharge, and infection. At Premier Pet Dentistry, we diagnose and surgically close oronasal fistulas to restore a healthy barrier and stop recurring nasal problems.
What Causes an Oronasal Fistula?
The roots of the upper teeth, especially the upper canine teeth, sit very close to the nasal cavity, separated by a thin layer of bone. Advanced periodontal disease can destroy this bone, creating a direct communication between the mouth and nose. Fistulas can also develop after extraction of an upper tooth, from trauma, from malocclusion in which lower canines puncture the palate, or from oral tumors. Dachshunds and other long-nosed, small-breed dogs are particularly prone.
Signs of an Oronasal Fistula
- Chronic sneezing, especially after eating or drinking
- Nasal discharge from one nostril, sometimes bloody
- Food or water coming from the nose
- Bad breath and signs of periodontal disease
- A visible opening where an upper tooth used to be
Diagnosis and Surgical Repair
Under anesthesia, Dr. Martin probes the area around the upper teeth and uses dental x-rays to identify the fistula and any diseased teeth. Repair is performed through our oral surgery service using a carefully designed gum and mucosal flap to close the opening without tension, which is key to a lasting result. Larger or recurrent fistulas may require a two-layer flap technique.
Many fistulas can be prevented with early treatment of periodontal disease through our pet periodontics care and proper closure at the time of extraction. A related congenital condition, cleft palate, is treated with similar reconstructive techniques. Explore our dental services or see all conditions we treat.
Oronasal Fistula FAQs
Why does my dog sneeze after drinking water?
Sneezing after eating or drinking can be a sign of an oronasal fistula, which allows water or food to enter the nasal cavity. A dental exam with x-rays can confirm the cause.
Will an oronasal fistula heal on its own?
No. Once an opening forms between the mouth and nose, it typically requires surgical closure.
Which pets are most prone to oronasal fistulas?
Small-breed dogs with long noses, especially Dachshunds, are commonly affected because of thin bone between their upper canine roots and nasal cavity.
What does surgery involve?
Dr. Martin closes the opening with a tension-free tissue flap, sometimes in two layers for larger defects, after removing any diseased teeth.
What is recovery like after fistula repair?
Pets eat soft food for a period while the flap heals and should avoid chewing on toys or hard items until cleared at a recheck.
Can oronasal fistulas be prevented?
Treating periodontal disease early and proper surgical closure during extractions of upper teeth greatly reduce the risk.
Stop Chronic Sneezing and Nasal Discharge
Call 503-PREMIER ((503) 773-6437) or request an appointment with Premier Pet Dentistry in Beaverton, OR . We proudly care for dogs and cats from Beaverton and across the Portland metro.