If you have ever been recommended an upper molar extraction, you may have wondered, “What about my sinuses?”
This is a valid question, and one we are asked quite frequently.
Due to the close proximity of the roots of upper molars to the maxillary sinus, some dental surgical procedures may have a low but real risk for a sinus perforation. Fortunately, the risks of perforation can be significantly reduced with the appropriate protocols and technology.
Let us take you through everything you need to know. From anatomy to aftercare, we’ll show you how we can take all reasonable measures possible to minimize the risk of sinus complications during the extraction of an upper molar.
Why Upper Molars Are Linked to Sinus Risks
To comprehend the reasons for which upper molar extractions may involve sinus issues, we need to look at anatomy. The maxillary sinus is a hollow airspace that is located just above your upper teeth, namely, the molars and the premolars. If we look closely, we sometimes see that people’s upper molar roots go very close to the maxillary sinus floor. Some even lightly penetrate it.
This is not an issue when you are living your daily life. However, with dental surgeries like extractions, the proximity of the roots of your molars to the sinus may increase the risk of a condition called sinus perforation, which involves a small hole between the mouth and the sinus. There are certain conditions that can increase this risk:
- Large sinus cavities that extend lower than what is considered normal
- A thin sinus floor
- Teeth with an infection that are impacted or fractured at the root
A CBCT scan can provide a visual representation of how close the tooth is to the sinus and facilitate an exact extraction plan.
What Is Sinus Perforation and Why Does It Matter?
A sinus perforation, also called oroantral communication, occurs when there is an inadvertent opening between the oral cavity and maxillary sinus during tooth extraction. Although it is not a common occurrence, it is essential to identify and treat it promptly.
Signs of sinus perforation may include:
- Air bubbles in your mouth when blowing your nose
- Fluids moving between your nose and mouth
- A whistling sound while breathing through your nose
If left untreated, the complications may include:
- Chronic sinusitis
- Oroantral fistula (an abnormal opening between the mouth and the sinus)
A sinus perforation during an upper molar extraction is rare but requires immediate attention. If left untreated, complications with chronic or long-standing sinus issues can arise.
Pre-Surgical Assessment: How We Minimize Risk
At Ridge Oral Surgery in New Jersey, every upper molar extraction begins with a comprehensive and individualized assessment.
Detailed Imaging
We use point beam CT (or CBCT) scans to accurately visualize the position of the sinus and roots in three dimensions. This allows us to:
- Determine the thickness of the sinus floor
- Determine the morphology and length of the roots of the tooth
- Plan a more conservative approach based on your anatomy

Customized Surgical Plan
Based on the imaging, we determine:
- Whether to section the tooth to reduce the pulling force
- How to angle our approach to avoid sinus intrusion
- Whether sinus elevation or root preservation is safer
Alternatives When Needed
In extremely high-risk cases, retaining a small root fragment may be safer than complete removal (if there’s no infection). Our dental surgeons weigh every option to protect your sinus.
Our commitment to safe dental surgery starts with advanced diagnostics, especially for high-risk upper molar extraction cases.
Surgical Techniques for Preventing Sinus Perforation
When extracting an upper molar, we consciously utilize our refined surgical techniques with an emphasis on accuracy and gentleness. This practice ensures that any unnecessary pain and/or trauma to the sinus membrane is avoided.
- Tooth Sectioning: If the upper molar is multi-rooted, we will typically section the tooth into smaller pieces for contoured removal.
- Gentle Elevators: Our surgeons do not forcefully use elevators to push the roots up and out of the sinus.
- Optional Sinus Membrane Protection: For borderline extractions, we may elect to place a membrane or bone grafting material to protect the sinus floor to some extent.
What Happens If a Sinus Perforation Occurs?
Sinus perforation, even after taking every precaution, is a real possibility, and one that we are well-equipped to handle.
Initial In-Surgery Response:
- The site is gently washed out with saline and examined
- We will close the area with resorbable sutures
- A collagen membrane may be used to promote healing and limit infection
Post-Operative Instructions:
- They will be given antibiotics to prevent infection
- We will provide decongestants to limit sinus pressure
- They will be instructed to avoid straws, nose blowing, and sneezing with their mouth shut for at least one week
In the unlikely event of a sinus perforation, if strict closure and aftercare procedures are followed, recovery can be safe.
Our Post-Surgery Care for Optimal Healing
The healing process from the extraction of an upper molar, particularly when it is near the sinus, is significantly impacted by good post-operative care.
Here is our general advice:
- Avoid drinking through straws or flying for a few days. Both activities can create unwanted pressure.
- Eat soft foods and keep the teeth as clean as possible (very gently!). Use the mouth rinses or medications that have been prescribed to you.
- Attend your follow-up appointments so that we can evaluate your recovery and intervene early, if necessary.
We are here for you every step of the way, before, during, and after the surgery.

Why Choose Ridge Oral Surgery for Complex Extractions
Upper molar extractions in the vicinity of the sinus require expertise, and we, at Ridge Oral Surgery, have it.
- Decades of cumulative surgical experience dealing with challenging extractions.
- High-tech imaging with CBCT to personalize the experience.
- Minimally invasive surgery to promote healing and prevent complications.
- A history of recognizing and treating sinus complications.
- Serving patients in Warren, Bridgewater, Morristown, and throughout NJ.
Upper molar extractions in the vicinity of the sinus are what our dental surgery team does, and we put sinus safety first every time.
Sinus perforation is a recognized (but rare) risk of upper molar extractions and is largely preventable and treatable when in the right hands with imaging and safety protocols in place.
Don’t let fear prevent you from getting the care you need.
Let us guide you through your subsequent treatment and provide you with peace of mind.
Contact us today to learn more about our safety protocols and advanced imaging technology.

