Flying is unsafe for 48 hours but usually safe after 7–10 days.
Booking a flight to Turkey and transforming your smile is, without a doubt, an exciting time. That’s really the mood! At Lema Dental Clinic, we see thousands of patients yearly who come from afar via the sea merely to get our services. Yet, there is one logistical hurdle that quite regularly stops people from going further with their plans, and that is the one that usually comes to their mind when they are about to pack their bags for home: Gravity and air pressure.
It’s not just a question of “can I get on a plane?” anymore. It’s more about “does flying undo the delicate work we just did?”
Our hands-on experience and especially the guidance of Prof. Dr. Coşkun Yıldız have lent a more subtle answer. Even though we live in a world where dental treatment has become extremely advanced, the nature of biology is still a bit of a mystery, and it is running its own course. Let’s examine what happens to your sinuses at 30,000 feet and how we make sure that your flight does not become the undoing of your new smile.
The Physics of the Cabin: Why Your Sinuses Care
The dangers are clearer when you think about what a sinus lift really is. Imagine your maxillary sinus, the hollow space filled with air that is right above your upper back teeth, as a tent. During a sinus lift, we carefully raise the “floor” of that tent to fit in some bone graft material from the outside. The graft then becomes God’s hands for your future implant.
The membrane that keeps everything intact is extremely fragile. I frequently make an analogy with this to the thin skin on the inside of an eggshell. It is a tough skin, but only to a certain degree.
When you get on an aircraft, the air pressure inside the cabin goes down. The cabin air, though pressurized, is usually equal to the air pressure you would experience at the top of a mountain (about 6,000 to 8,000 feet above sea level). Boyle’s Law tells us that the volume of a gas increases as the pressure decreases.
In case there is a pocket of air trapped in your sinus cavity (which is very typical after surgery when your nose swells or bleeds slightly), that air is wishing to expand. If you are on the ground, you can deal with this. However, when you are on the plane, the air expansion that results from it pushes against the new bone graft and against the delicate eggshell membrane of yours.
The “Safe Window”: When Can You Board?
At Lema Dental Clinic, we are not fans of “one-size-fits-all” rules, but believe safety margins are really a must.
Polen Akkılıç – Dentist and her team basically go for a complete no flying period right after the surgery. The biggest risk period is 48 – 72 hours after the procedure. This time it is about the blood clot fixing itself, and at the same time, the graft can be moved easily. If you are exposed to pressure changes too soon, you could suffer from:
- Barotrauma: The face and eyes are getting very painful because of the drastic pressure.
- Graft Displacement: Bone granules can be literally blown out of their place by the air pressure.
- Sinus Perforation: Expansion of air can break the healing membrane.
Typically, our international patients who come for surgery in Turkey are advised to stay on the ground for at least 3 to 7 days post-surgery to be on the safe side depending on the complexity of the lift. If during surgery the membrane was torn (a common and repairable complication), the waiting time may be extended to 10 to 14 days.
The truth is that going home immediately is not a good enough reason for jeopardizing the failure of the implant. We want you to see Istanbul, relax in your hotel, and let the first healing phase be before going up.
Managing the Altitude: A Risk Comparison
Here is a breakdown of what we typically see regarding flight risks based on post-operative timing.
| Post-Surgery Interval | Risk Level | Problems That Might Occur | Clinical Recommendation |
| 0–48 Hours | High | Severe bleeding, extreme pain (barodontalgia), graft dislocation | Flying is not allowed. Strict ground rest is required. |
| 3–7 Days | Moderate | Sinus pressure, minor bleeding, mild discomfort | Proceed with caution. Short-haul flights may be acceptable with medical approval. |
| 7–10 Days | Low | Mild pressure sensation | Usually safe. This is the preferred window for long-haul return flights. |
| 14+ Days | Minimal | Risk is practically zero | Safe to travel. Standard travel protocols apply. |
In-Flight Survival Guide
Maybe you have already reached the airline with the indicated time elapsed and the doctor has given you the green light for takeoff. However, you still need to be preventative. The air there is arid, and dryness is a big antagonist of healing.
Here is what we tell our patients just before they go to the airport:
- Nasal Decongestants are Your Best Friend: Using a nasal spray (like Oxymetazoline) about 30 minutes before takeoff and also before the landing halves the discomfort. This makes the ostium (the sinus drainage hole) dilate so that the pressure becomes balanced and it does not get to build up behind the graft.
- The “No-Blow” Rule: This is something we will never compromise. Do not blow your nose. If you have a runny nose, do a gentle cleanup. When you blow your nose, you create a huge spike in the sinus pressure which is even higher than the airplane provides. If the need to sneeze strikes, do open your mouth so the pressure can be released.
- Drink Water like Water is going to disappear from the Cabin: Cabin air extracts moisture from your mucous membranes. Therefore keep drinking water so the nasal passages stay hydrated.
Frequently Asked Questions
The most important thing first and foremost to remember is that there is no reason to be afraid.Walking and standing are not the best things to do but if you want, you can do it through. Relax your jaw a bit by putting something like gauze between your teeth and chewing it lightly. So please don’t chew the food. Keep on swallowing and/or using a saline nasal spray to help you equalize the pressure more easily. If the pain is too much, call a flight attendant. Normally, the feeling goes away once the plane reaches a stable altitude.
Sometimes the answer is yes. The internal (crestal) sinus lift is the one where only the floor was slightly (2-3mm) raised through the implant hole. The trauma was thus considerably less than in the case of a lateral window lift. In this case, Professor Doctor Coşkun Yıldız may allow you to fly after 48-72 hours. However, please make sure to verify this with your discharge instructions.
Questionnaire to us quite regularly! What is a dental implant? To make it really simple, it is a tiny bit of titanium which will probably not be even a bit of metal detectors at airports. Besides, millimeter wave scanners are designed to detect things on the body, not inside bones, so there is no risk in going through security.
Minor bleeding is very common. You can keep changing the gauze without a problem. When you having nosebleed (epistaxis), you should never squeeze your nose nor tilt your head backward. What you should do is press the soft part of the nostril, lean a little forward (to avoid swallowing the blood), and breathe through your mouth. Also, putting an ice pack on the bridge of your nose is the right thing to do as it helps blood vessels to constrict.
Yes, biology is the same but logistics differ a lot. If you are traveling, you can’t simply go to the clinic whenever you feel weird. It may be 12 hours.
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- Zadik, Y., & Levin, L. (2019). Aviation dentistry: current concepts and practice. British Dental Journal, 206(1), 11-16.
- Wallace, S. S., & Froum, S. J. (2003). Effect of maxillary sinus augmentation on the survival of endosseous dental implants. Annals of Periodontology, 8(1), 328-343.
- Holst, S., et al. (2018). Barodontalgia and barotrauma in the human maxillary sinus: A review regarding dental implantology. Journal of Oral Rehabilitation, 45(4), 299-305.
- Testori, T., et al. (2012). Maxillary Sinus Surgery and Alternatives in Treatment. Quintessence Publishing.
