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Surgery is the primary treatment for most oral cavity cancers. The right operation depends on the tumour's site, size, depth, and whether it has reached the lymph nodes or jawbone. This guide walks through the main oral cancer surgery types — what each procedure removes, when it is recommended, and how function is restored afterwards — reviewed by CION's surgical and medical oncology team.
Surgery is the main treatment for most cancers of the oral cavity — the lips, tongue, buccal mucosa (inner cheek), floor of the mouth, gums, and hard palate. The goal of any oral cancer operation is to remove all of the cancer with a clear margin of healthy tissue around it, while preserving as much of the patient's ability to eat, speak, and breathe as possible.
The type of surgery recommended depends on four things:
Most patients have more than one of these procedures combined in a single operation — for example, wide local excision plus neck dissection plus free-flap reconstruction. Your tumour board will recommend the exact combination after reviewing your biopsy and imaging.
*1-year survival: CION oral cancer patients 80.0% vs national average 71.6% (Δ +8.4 points). Source: ICMR / National Cancer Registry Programme (NCRP).
The cervical (neck) lymph nodes are the first site of spread for oral cavity cancers — and around 30% of patients have microscopic lymph node involvement even when the nodes feel completely normal on examination. This is why neck dissection is often performed at the same time as removing the primary tumour, even when no lump can be felt in the neck. (Source: NCCN Head and Neck Cancers guidelines.)
Oral cancer surgery is not a single operation — it is a family of procedures, often combined in one sitting. Below are the main oral cancer surgery types, what each one removes, and when a surgical oncologist recommends it. Tap any procedure to expand.
Wide local excision is the foundation of oral cancer surgery — the removal of the primary tumour together with a margin of normal-looking tissue (usually at least 1cm) all the way around and underneath it. The adequacy of this surgical margin is the single most important factor in preventing the cancer from coming back at the same site. For small, early-stage tumours of the cheek lining, gum, or floor of mouth, wide local excision alone may be sufficient treatment, often performed through the mouth without any external incision.
Glossectomy is the removal of part or all of the tongue for tongue cancer. A partial glossectomy removes only the affected portion and is the most common form; a hemiglossectomy removes one half; and a total glossectomy — reserved for very advanced disease — removes the entire tongue. Because the tongue is essential for both speech and swallowing, the extent of removal is planned carefully, and reconstruction with a soft, pliable free flap is usually needed for anything more than a small partial resection to preserve the patient's ability to talk and eat.
A mandibulectomy removes part of the lower jawbone (mandible) when a cancer of the gum or floor of mouth has invaded the bone, confirmed on imaging. A marginal mandibulectomy shaves off only the affected rim of bone and preserves jaw continuity; a segmental mandibulectomy removes a full-thickness section of the jaw and usually requires reconstruction with a fibula free flap to restore the jaw's continuity and allow dental implants later. Choosing between marginal and segmental resection is a key tumour-board decision — and a common reason patients seek a second opinion.
A maxillectomy removes part or all of the upper jaw (maxilla) for cancers of the hard palate or upper gum that involve the bone. Because the upper jaw separates the mouth from the nasal cavity and sinuses, removing it can create an opening between these spaces that affects speech and swallowing. The defect is closed either with a custom-made prosthetic plate called an obturator or with a composite flap reconstruction, restoring the separation between the mouth and nose so the patient can speak clearly and eat without food entering the nasal passages.
Neck dissection is the systematic removal of lymph nodes from the neck, performed alongside removal of the primary tumour because the neck nodes are the first place oral cancer spreads. A therapeutic neck dissection removes nodes that are clearly involved, while an elective neck dissection removes at-risk nodes that look normal but may carry microscopic disease. The three main types — selective, modified radical, and radical neck dissection — differ in how many node levels and surrounding structures are removed, and the choice is based on how much the cancer has spread.
Reconstruction is not a separate, optional step — for large defects it is the part of the operation that restores quality of life. Microvascular free-flap reconstruction transfers tissue from a distant donor site, with its own artery and vein, to the mouth; those vessels are reconnected under a microscope to give the transferred tissue a fresh blood supply. The radial forearm free flap restores soft, mobile tissue for the tongue, cheek, and floor of mouth; the fibula free flap rebuilds the jawbone after segmental mandibulectomy; and the anterolateral thigh (ALT) flap fills large-volume defects.
For selected early-stage, superficial tumours of the tongue, floor of mouth, or oropharynx, transoral laser microsurgery offers a minimally invasive alternative to open surgery. The cancer is removed through the mouth using a focused laser beam under magnification, without external incisions or the need to split the jaw. This approach can mean a shorter hospital stay, faster recovery, and better preservation of speech and swallowing function — but it is only suitable for carefully chosen cases, and the decision is made by the tumour board based on tumour size, depth, and accessibility.
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Trained at AIIMS, Tata Memorial, and leading international centres. Combined 150+ years of experience. Every complex case is reviewed by 3+ of them — together.
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
MBBS, MS(General Surgery), M.Ch(Surgical Oncology), FMAS, FARIS(Ongoing)
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Oral cancer surgery is planned carefully and aligned with NCCN standards. Here is the typical pathway from diagnosis to recovery.
A biopsy confirms the diagnosis, and imaging (CT, MRI, and sometimes PET-CT or an OPG dental X-ray) maps the tumour's size, depth, and any bone or lymph-node involvement. The tumour board then decides which procedures to combine.
In a single sitting, the surgical team removes the tumour with clear margins, performs neck dissection if needed, and reconstructs the defect. Larger operations involving free flaps are performed by a two-team approach and may take several hours.
After surgery, the pathology report guides whether adjuvant radiation or chemoradiation is needed for high-risk features. Speech and swallowing rehabilitation begins early, and dental rehabilitation follows for patients who had jaw reconstruction.
When a large part of the tongue, cheek, floor of mouth, or jawbone is removed, microvascular free-flap reconstruction rebuilds it. The choice of flap depends on what is being replaced — soft tissue, bone, or large volume. CION coordinates free-flap reconstruction for eligible patients through its surgical oncology network.
Thin, pliable skin and soft tissue from the inner forearm; ideal for tongue, buccal mucosa, and floor-of-mouth reconstruction. Preserves oral mobility and speech function after wide resection.
Bone and overlying skin from the lower leg; the gold standard for mandibular (jaw) reconstruction after segmental mandibulectomy. Allows dental implant placement post-reconstruction.
Versatile large-volume flap from the thigh; used for extensive cheek, floor-of-mouth, or composite defects where a high tissue volume is needed.
A regional pedicled flap for patients not suitable for microvascular reconstruction. Simpler and faster, but with less optimal functional outcomes than free flaps.
The goal of reconstruction is not just to close the wound — it is to restore the ability to eat, speak, and maintain social interaction. CION's reconstruction planning begins before surgery, in coordination with the surgical and speech rehabilitation teams.
Recovery depends on the size and type of surgery. Restoring the ability to eat, speak, and live normally is part of the treatment plan from the very start, not an afterthought.
Full surgical spectrum, free-flap reconstruction, NCCN protocols, and a tumour board for every patient — across 35+ centres in Telangana & AP.
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CION Cancer Clinics is India's fastest-growing cancer care network, with over 35 centres across Telangana and Andhra Pradesh. Dedicated exclusively to oncology, CION delivers NABH-accredited, NCCN and ESMO protocol-driven cancer care — bringing world-class treatment closer to patients across the region at our oral cancer hospital in Hyderabad.
Disclaimer: This content is intended for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified oncologist for guidance specific to your medical condition. The information on this page is periodically reviewed and updated by CION's medical team in accordance with current clinical guidelines.
Microvascular free-flap reconstruction is the gold standard for restoring oral form and function after wide resection. CION coordinates radial forearm, fibula, and ALT free flaps as part of oral cancer surgical planning — with reconstruction planning that begins before the tumour is even removed, so the patient's ability to eat and speak is protected from the start.
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Start Your Story. Book Free Consultation.The main oral cancer surgery types are: wide local excision (removing the tumour with a healthy margin); glossectomy (partial or total removal of the tongue); mandibulectomy (removing part of the lower jawbone); maxillectomy (removing part of the upper jaw or hard palate); neck dissection (removing neck lymph nodes); and microvascular free-flap reconstruction to rebuild large defects. Transoral laser microsurgery is a minimally invasive option for selected early tumours. Most patients have more than one of these combined in a single operation — for example, wide local excision plus neck dissection plus a free flap. The exact combination is decided by the tumour board based on the tumour's site, size, depth, and lymph-node spread.
Wide local excision is the removal of the primary oral tumour together with a rim of normal-looking tissue around and beneath it — usually at least 1cm. This margin is the single most important factor in preventing the cancer from returning at the same site. For small, early tumours of the cheek lining, gum, or floor of mouth, wide local excision alone may be enough, and it can often be done through the mouth without any external incision. Larger tumours may need it combined with removal of part of the tongue or jaw and with reconstruction.
The lymph nodes in the neck are the first place oral cancer spreads, and around 30% of patients have microscopic node involvement even when the nodes feel completely normal. Neck dissection removes these nodes, either to treat spread that is already visible (therapeutic) or to remove at-risk nodes that look normal but may carry hidden disease (elective). It is recommended for most tumours above the smallest, earliest stage. The three main types — selective, modified radical, and radical neck dissection — differ in how many node levels and surrounding structures are removed, and the choice depends on how far the cancer has spread.
Both are operations on the lower jawbone (mandible) for cancers that involve the jaw. A marginal mandibulectomy shaves off only the affected rim of bone and keeps the jaw in one continuous piece, so no major reconstruction is needed. A segmental mandibulectomy removes a full-thickness section of the jaw, breaking its continuity, and usually requires reconstruction with a fibula free flap to restore the jawline and allow dental implants later. Choosing between them is a key tumour-board decision based on how deeply the cancer has invaded the bone — and it is one of the most common reasons patients seek a second opinion before surgery.
Free-flap reconstruction rebuilds large defects left after removing the tumour. Tissue — sometimes with bone — is transferred from a distant donor site on the body, along with its own artery and vein, which are reconnected to vessels in the neck under a microscope to give the tissue a fresh blood supply. The radial forearm free flap restores soft, mobile tissue for the tongue, cheek, and floor of mouth; the fibula free flap rebuilds the jawbone after segmental mandibulectomy; and the anterolateral thigh (ALT) flap fills large-volume defects. The aim is to restore the ability to eat, speak, and maintain a normal appearance.
In selected cases, yes. For early-stage, superficial tumours of the tongue, floor of mouth, or oropharynx, transoral laser microsurgery removes the cancer through the mouth using a focused laser, without external incisions or splitting the jaw — often meaning a shorter stay and faster recovery. For locally advanced, unresectable cancers, definitive chemoradiation can be used instead of surgery. For recurrent or metastatic disease, systemic treatments such as immunotherapy may be the main approach. The tumour board evaluates every patient for all options before recommending the extent of surgery.
Recovery depends on the size and type of surgery. A small wide local excision may heal in a couple of weeks, while a major operation involving free-flap reconstruction requires a longer hospital stay and several weeks to months of rehabilitation. Speech and swallowing therapy usually begins early, diet is progressed from liquids to soft foods to normal eating under guidance, and jaw-opening exercises help prevent stiffness. Patients who had jaw reconstruction may need dental rehabilitation afterwards. If the pathology shows high-risk features, adjuvant radiation or chemoradiation may follow, which extends the overall treatment timeline.
For oral cancer it is strongly advisable, particularly when jaw removal, free-flap reconstruction, or surgery-versus-chemoradiation is being discussed. CION offers a dedicated Second Opinion service where the multidisciplinary tumour board reviews your biopsy, imaging, and the recommendation you have received. A second opinion is especially valuable when jaw removal has been advised (a bone-sparing marginal mandibulectomy may sometimes be an option), when free-flap reconstruction is planned (the choice of flap affects how well you eat and speak afterwards), and when surgery has been declined as not feasible (chemoradiation may offer an alternative path to cure).