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Flap reconstruction or obturator: closing the gap after maxillectomy | CION Cancer Clinics
After a maxillectomy the roof of the mouth is open into the nose, and something has to seal it. An obturator is a removable plate made by a dental specialist. A flap is living tissue moved from your arm, leg or back and stitched into the gap. This page explains what each involves, what your team weighs, and who each option does not suit. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
MI
Medically reviewed by Dr. Mohammed ImaduddinConsultant Surgical Oncologist · MBBS, MS (General Surgery), MCh (Surgical Oncology) · last reviewed September 2026, next review due September 2027
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On this page
- Flap or obturator: which one closes the gap after maxillectomy?
- How an obturator and a flap compare, point by point
- What your team is weighing when they choose
- What each path looks like in the months after surgery
- Four things families say about flaps and obturators
- Who each option does not suit, and what this page cannot decide
- Common questions about flaps and obturators
The short answer
Flap or obturator: which one closes the gap after maxillectomy?
Both do the same job. They seal the opening between the mouth and the nose that a maxillectomy leaves behind, so you can eat, drink and speak. An obturator is a removable plate made by a dental specialist. A flap is living tissue moved from elsewhere in your body and stitched into the gap during the operation.
Why there is a choice at all
The maxilla is the upper jaw. It holds the upper teeth, forms the roof of the mouth and the floor of the eye socket, and shapes the cheek. When part of it is removed for cancer, the roof of the mouth is opened into the nose. Something has to close that opening. Neither method is right for everyone, and many people have both at different points.
How the decision is usually made
Your surgeon and a prosthodontist, the dental specialist who makes obturators, look at the size of the gap, how many teeth will be left, whether radiotherapy is planned, and your fitness for a longer operation. They also ask what matters most to you. Some people want the shortest operation. Others never want to think about a plate again.
This page explains what each option involves. It cannot tell you which one your team will recommend, because that depends on your own scan and your own mouth.Side by side
How an obturator and a flap compare, point by point
Obturator
Flap reconstruction
Obturator: a removable plate, fitted at the end of the operation or soon after
Flap: living tissue moved into the gap during the same operation
Obturator: shorter time under anaesthetic
Flap: a longer operation, often with a second wound where the tissue came from
Obturator: the cavity can be looked at directly at every check-up
Flap: the cavity is covered, so follow-up relies more on scans
Obturator: needs daily removal, cleaning and relining as the mouth changes
Flap: nothing to remove, but the tissue can be bulky and may need trimming later
Obturator: can carry replacement teeth from the start
Flap: teeth usually come later, often on implants placed into the new bone
What decides it
What your team is weighing when they choose
None of these points settles the question alone. The team puts them together and then talks it through with you.
The size of the gap
A small opening with plenty of teeth around it holds an obturator well. A large gap, or one that takes the whole of one side of the palate, leaves the plate with little to grip. Large gaps often lean towards a flap.
Teeth that will remain
An obturator clips onto the teeth left behind. If few or none remain, the plate depends on suction and the shape of the cavity, and it moves more when you chew or talk.
Often asked about
- Loose or decayed teeth near the cut
- Whether implants are possible
Radiotherapy afterwards
Radiotherapy to the area makes the lining thinner and drier, so a plate can rub and heal slowly. It also affects how well a flap takes. Your team plans the closure and the radiotherapy together, not one after the other.
Your fitness for a long operation
A flap operation takes longer and asks more of the heart and lungs. For someone older or with other illnesses, the shorter obturator route may be safer. Your anaesthetist joins this judgement.
Say what you want your life to look like afterwards. It changes the recommendation more often than people expect.Not sure whether this applies to you?
Ask an oncologistOver time
What each path looks like in the months after surgery
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In the operating theatre
With an obturator, a temporary plate made before surgery is fixed in at the end so you wake with the palate sealed. With a flap, the surgeon finishes by stitching the moved tissue into place and checking its blood supply.
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The first days in hospital
Flap patients are watched closely, because the new tissue depends on a small joined blood vessel. Obturator patients are usually up and about sooner, but the plate is bulky and eating takes practice.
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The first weeks at home
The cavity shrinks as it heals. An obturator is relined or replaced to keep up. A flap settles and swelling comes down, and you learn to eat around tissue that has no feeling.
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After a few months
Obturator patients are fitted with a final plate, often carrying teeth. Flap patients may be offered trimming of bulky tissue, and sometimes dental implants into the new bone.
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Long term
An obturator is reviewed and remade every few years. A flap is permanent, but any teeth on it need the same dental care as anyone else's, and the donor site scar stays.
Commonly believed
Four things families say about flaps and obturators
"A flap is the modern option, so it must be stronger."
A flap suits some gaps very well, but it is not automatically the stronger choice. For a small defect with good teeth around it, a well-made obturator can give clearer speech and easier eating, with a shorter operation.
"With a plate, the cancer will be easier to miss."
The opposite is closer to the truth. An obturator can be taken out, so the surgeon looks straight into the cavity at every visit. A flap covers the area, so follow-up leans more on scans. Both are watched; they are watched differently.
"Choosing an obturator means we can never have a flap."
Not so. Some people start with an obturator, finish radiotherapy, and have a flap later once the team is confident the cancer has not returned. Starting with the plate keeps that door open.
"The flap comes from the face, so there will be another scar there."
The tissue usually comes from the forearm, thigh, lower leg or shoulder blade area, not from the face. There is a scar where it was taken, and that area needs its own care, but it is covered by clothing.
Being straight with you
Who each option does not suit, and what this page cannot decide
An obturator does not suit everyone. If you cannot take a plate out, clean it and put it back each day, because of hand weakness, poor eyesight or memory problems, it becomes a source of infection rather than help. It also struggles when the gap is very large and almost no teeth remain.
When a flap is not the right route
A flap does not suit someone who is not fit for a long anaesthetic, or whose blood vessels are too diseased for the small joins the operation relies on. Heavy smoking, uncontrolled diabetes and previous radiotherapy to the neck all make a flap harder. Where the cancer was close to the edge of what was removed, a plate may be preferred so the cavity can be watched directly for a year or two.
Questions worth asking your surgeon
Ask how big the gap will be and how many teeth will be left. Ask who will make and adjust the plate, and how often you will travel for it. Ask where a flap would be taken from and what that arm or leg will be like afterwards. Ask what happens if the first plan does not work.
This page cannot tell you which option is right for you. That comes from your own scan, your own mouth and a conversation with the people who will do the work.Questions we are asked
Common questions about flaps and obturators
Can we have both a flap and an obturator?
Yes, and it is common. A flap may close the main opening while a smaller dental plate carries replacement teeth on top of it. Some people begin with an obturator and move to a flap a year or more later. Ask whether a combination is being considered for you.
Which one gives clearer speech?
It depends on the fit more than the type. A well-fitting obturator on a small gap can give very clear speech. A flap that is bulky or sags can leave speech muffled until it is trimmed. Either way, a speech therapist will work with you, and speech keeps improving for months after surgery.
Will I be able to eat normally with either?
Most people return to a fairly normal diet with either option, but it takes practice. With a plate, chewing on the operated side is limited and the plate can lift. With a flap, the new tissue has no feeling, so you learn to check that side of the mouth for trapped food. Very hard or sticky foods stay difficult with both.
Where does the flap tissue come from?
Usually the forearm, the outer thigh, the lower leg or the shoulder blade area. Which one depends on whether bone is needed as well as soft tissue. The place it was taken from is closed with stitches or a skin graft and heals alongside the mouth. Ask which site is planned and what that limb will be like afterwards.
How often does an obturator need to be replaced?
The first temporary plate is changed within weeks because the cavity shrinks quickly as it heals. A more settled plate follows, and the final one once the shape has stopped changing. After that, most people need a reline or a new plate every few years as the mouth changes.
Does a flap make it harder to spot the cancer returning?
It changes how the area is watched rather than whether it is watched. With a plate, the surgeon looks directly into the cavity at each visit. With a flap, follow-up relies more on scans and on examining the edges. Report any new pain, bleeding or numbness promptly, whichever you have.
Can the decision be changed after the operation?
In one direction, yes. Someone who starts with an obturator can usually be offered a flap later if they want one and are fit for it. Going the other way is much harder, because the flap tissue now fills the space a plate would sit in.
Is one option covered by Aarogyasri or insurance and the other not?
Both the operation and the reconstruction are usually claimable when they are part of an approved cancer treatment plan. Aarogyasri, CGHS, ECHS and EHS are accepted at CION, and most cashless insurers are empanelled. The dental work for a plate is sometimes billed separately, so ask for a written breakdown.
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Sources
- Cancer Research UK — Surgery for mouth cancer
- National Cancer Institute — Paranasal Sinus and Nasal Cavity Cancer Treatment (PDQ) - Patient Version
- American Cancer Society — Surgery for Nasal Cavity and Paranasal Sinus Cancer
- Macmillan Cancer Support — Head and neck cancer
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
Obturators: The Removable Plate That Seals the PalateHow the plate is made, fitted and changedThe Hole Left in the Palate and What Closes ItWhy the gap exists and how its size is describedProsthodontist and Dental Rehabilitation After MaxillectomyReplacement teeth on a plate or on implantsSpeech After MaxillectomyHow each option affects your voiceDeciding on Cancer SurgeryHow to weigh a recommendation and what to ask
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