What Is Salivary Gland Surgery?
The body has three pairs of major salivary glands: the parotid glands (in front of the ears), the submandibular glands (under the jaw), and the sublingual glands (under the tongue). These glands produce saliva that helps with digestion, lubrication, and oral health. Hundreds of minor salivary glands line the inside of the mouth as well.
Salivary gland surgery addresses problems that affect these glands, including blockages from stones, chronic or recurrent infections, cysts, and tumors. The type of surgery depends on the specific condition, its location, and whether the gland can be preserved or needs to be removed.
Conditions Treated with Salivary Gland Surgery
Several conditions may require surgical intervention.
- Sialolithiasis (salivary stones) that block the duct and cause swelling and pain
- Chronic sialadenitis (recurrent gland infections) that do not respond to antibiotics and conservative care
- Salivary gland tumors, both benign and malignant
- Ranula or mucocele (fluid-filled cysts) that form when a duct is damaged or blocked
- Sjogren syndrome-related gland enlargement when symptoms are severe
What Causes Salivary Gland Problems?
Salivary gland disease can result from blockages, infections, autoimmune conditions, or abnormal cell growth. The most common surgical condition is salivary stone formation.
Salivary Stones (Sialolithiasis)
Salivary stones form when calcium and other minerals in saliva crystallize inside a salivary duct. These stones can range from tiny grains to over 2 centimeters in diameter. When a stone blocks saliva flow, the gland swells painfully, especially during meals when saliva production increases. The submandibular gland is affected in about 80% of cases because its duct is longer, wider, and runs uphill, making it more prone to mineral deposits.
Infections and Tumors
Chronic infections develop when stones or duct narrowing cause saliva to pool inside the gland, creating an environment for bacteria to grow. Repeated episodes of sialadenitis can permanently damage the gland, making removal the best long-term solution.
Salivary gland tumors are relatively rare but important to evaluate promptly. About 80% of parotid tumors are benign, with pleomorphic adenoma being the most common type. However, tumors in the submandibular and minor salivary glands have a higher rate of malignancy, which is why biopsy and imaging are essential when a mass is detected.
What to Expect During Salivary Gland Surgery
The surgical approach depends on the condition being treated, the gland involved, and the size and location of any stones or masses.
Sialendoscopy (Minimally Invasive Stone Removal)
Sialendoscopy uses a tiny endoscope (a thin tube with a camera and light) inserted through the natural opening of the salivary duct. The surgeon can see inside the duct system, locate stones, and remove them using miniature baskets, forceps, or laser fragmentation. This approach preserves the gland and avoids external incisions.
Sialendoscopy works best for small to medium stones (typically under 7 to 8 millimeters). It is performed under local anesthesia with sedation or under general anesthesia. The procedure usually takes 30 to 60 minutes.
Open Surgical Stone Removal
For larger stones or stones located deep within the gland, an open surgical approach may be needed. If the stone is in the duct of the submandibular gland and close to the mouth floor, the surgeon can make a small incision inside the mouth to access and remove the stone while preserving the gland. For stones embedded within the gland itself, removal of the entire gland (sialadenectomy) may be necessary.
Submandibular Gland Excision
When the submandibular gland is chronically infected or contains a tumor, the entire gland may need to be removed. The surgeon makes an incision in the neck below the jawline, carefully identifies and protects surrounding nerves (including the marginal mandibular nerve that controls the lower lip), and removes the gland. The remaining salivary glands compensate for the lost gland, so most patients do not experience significant dry mouth afterward.
Parotidectomy (Parotid Gland Surgery)
Parotid gland surgery is most often performed for tumors. The facial nerve, which controls the muscles of facial expression, runs through the middle of the parotid gland, making this surgery technically demanding. Surgeons use facial nerve monitoring equipment during the procedure to track nerve function in real time.
A superficial parotidectomy removes the outer portion of the gland (where most tumors occur) while preserving the facial nerve. A total parotidectomy removes the entire gland and is reserved for larger tumors or confirmed malignancy. The incision is typically made in front of the ear and extends into a natural neck crease.
Recovery and Aftercare
Recovery depends on the type of procedure performed. Minimally invasive approaches have shorter recovery periods than open surgeries.
Recovery from Sialendoscopy
Most patients return to normal activities within 1 to 2 days after sialendoscopy. Mild swelling and soreness in the area of the duct opening are common. You may be advised to massage the gland gently and stay well hydrated to promote saliva flow. Sour candy or lemon drops can help stimulate saliva production and keep the duct clear.
Recovery from Open Surgery and Gland Removal
After submandibular gland excision or parotidectomy, expect 1 to 2 weeks of recovery before returning to work and normal activities.
- Swelling and bruising around the incision site for 1 to 2 weeks
- A surgical drain may be placed for 1 to 2 days to prevent fluid buildup
- Sutures or staples are removed at 7 to 10 days
- Numbness around the incision area that usually improves over weeks to months
- For parotid surgery: temporary facial weakness is possible and usually resolves within weeks
Frey Syndrome After Parotid Surgery
A unique complication of parotid surgery is Frey syndrome, also called gustatory sweating. This occurs when healing nerve fibers that originally stimulated saliva production grow into the sweat glands of the skin over the surgical site. The result is sweating on the cheek during eating. It develops in 30% to 50% of patients after parotidectomy but is usually mild. Treatments include antiperspirant applied to the area or Botox injections in more bothersome cases.
Cost of Salivary Gland Surgery
Costs depend on the procedure type, anesthesia, and whether the surgery is performed in an office or hospital setting. Costs vary by location and provider.
Typical Price Ranges
Sialendoscopy typically costs $1,500 to $4,000. Open stone removal with gland preservation ranges from $2,000 to $5,000. Submandibular gland excision costs $3,000 to $7,000. Parotidectomy is the most involved procedure and typically costs $5,000 to $10,000 or more, reflecting the longer operative time and facial nerve monitoring requirements.
Insurance Coverage
Salivary gland surgery is typically covered by medical insurance because these are medically necessary procedures. Coverage applies to the surgery, anesthesia, facility fees, and pathology (if a tumor is removed). Prior authorization may be required. Contact your insurance provider to verify benefits and understand your out-of-pocket costs.
When to See a Specialist About Salivary Gland Problems
Many salivary gland issues resolve with conservative treatment such as hydration, warm compresses, and gentle massage. However, certain symptoms warrant prompt evaluation by a specialist.
Signs to Seek Evaluation
Contact an oral surgeon or ENT specialist if you experience any of the following.
- Repeated episodes of painful swelling under the jaw or in front of the ear, especially during meals
- A firm lump or mass in a salivary gland area that persists for more than 2 weeks
- Persistent bad taste or pus draining from a salivary duct inside the mouth
- Facial weakness or numbness associated with a gland mass
- Swelling that does not respond to antibiotics or conservative measures
Find a Specialist for Salivary Gland Surgery
Both oral and maxillofacial surgeons and ENT (otolaryngology) surgeons perform salivary gland surgery. For stone removal and submandibular gland procedures, either specialist is well-qualified. For parotid gland tumors, look for a surgeon with specific experience in parotid surgery and facial nerve preservation.
Ask your dentist or primary care doctor for a referral. When evaluating surgeons, ask about their experience with your specific condition, the surgical approach they recommend, and their complication rates. Surgeons who perform sialendoscopy offer a minimally invasive option that may preserve the gland and avoid an external incision.
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