6 doctors weighed in:

What causes a root canal to puncture a sinus?

6 doctors weighed in
Dr. James Bates
Surgery - Oral & Maxillofacial
3 doctors agree

In brief: Sinus

Upper back molar teeth can often have roots which protrude into the maxillary sinus cavity, in the upper jaw and cheekbone.
A root canal in an upper back molar tooth could result in a tiny opening into the sinus or filling material in the sinus cavity. If you're concerned about it, return to see the dentist who performed the root canal and discuss it. You may need to see an endodontist.

In brief: Sinus

Upper back molar teeth can often have roots which protrude into the maxillary sinus cavity, in the upper jaw and cheekbone.
A root canal in an upper back molar tooth could result in a tiny opening into the sinus or filling material in the sinus cavity. If you're concerned about it, return to see the dentist who performed the root canal and discuss it. You may need to see an endodontist.
Dr. James Bates
Dr. James Bates
Thank
Dr. Jeffrey Krantz
Dentistry
2 doctors agree

In brief: Overinstrumentation

The canals have a particular 'length" to them. If the clinician was not careful about "working length" and went past the bottom of the tooth, you can "puncture" the sinus.
But the instruments are so thin that it really is not a clinical issue and the "puncture" is self healing, very quickly.

In brief: Overinstrumentation

The canals have a particular 'length" to them. If the clinician was not careful about "working length" and went past the bottom of the tooth, you can "puncture" the sinus.
But the instruments are so thin that it really is not a clinical issue and the "puncture" is self healing, very quickly.
Dr. Jeffrey Krantz
Dr. Jeffrey Krantz
Thank
Dr. Danni Sayman
Dentistry - Endodontics

In brief: RC

If the root is related to the sinus and is infected it may affect the sinus.

In brief: RC

If the root is related to the sinus and is infected it may affect the sinus.
Dr. Danni Sayman
Dr. Danni Sayman
Thank
Get help from a real doctor now
Dr. Keegan Duchicela
Board Certified,
11 years in practice
16M people helped
Continue
111,000 doctors available
Read more answers from doctors