A salivary stone is a small, hard mineral deposit that forms inside a salivary gland or its duct and blocks the flow of saliva. It can cause painful swelling, especially at mealtimes. This guide explains sialolithiasis, its causes, symptoms, diagnosis, and treatment options, and how Vitrin Clinic supports patients with early assessment and care.
What Is a Salivary Stone?
A salivary stone forms when calcium salts and other minerals in saliva crystallize around a core of mucus, cells, or bacteria. Over time, the deposit grows and can partly or completely block the duct that carries saliva into the mouth. Saliva then backs up inside the gland, causing pain and swelling.
What Is Sialolithiasis?
Sialolithiasis is the medical term for stones forming in the salivary glands or their ducts. It is one of the most common causes of salivary gland swelling in adults and usually affects people between 30 and 60 years old. Children are rarely affected. Stones can be single or multiple and vary in size.
Which Glands Are Most Affected?
About 80 to 90 percent of salivary gland stones form in the submandibular glands beneath the jaw. These glands have a long duct that runs upward, and their saliva is thicker and richer in calcium, so stones form more easily. The parotid glands account for most remaining cases. A salivary stone in the sublingual or minor glands is rare.
What Is a Salivary Duct Stone?
A salivary duct stone is lodged in the tube that carries saliva from the gland into the mouth, rather than inside the gland itself. Stones in the submandibular duct often sit near its opening under the tongue. There they can sometimes be felt or even seen, which makes removal simpler.
Salivary Gland Stones Causes
The exact causes of salivary gland stones are not fully understood. Most stones form when saliva becomes thick, slow-moving, or concentrated, which lets minerals settle and harden. Anything that reduces saliva flow, changes its composition, or damages the duct raises the risk of developing a salivary stone.
Dehydration and Reduced Saliva Flow
When the body is dehydrated, saliva becomes thicker and flows more slowly, which gives calcium and phosphate time to crystallize. Not drinking enough water, a long illness, heavy sweating, and older age can all reduce saliva production. Staying well hydrated is one of the simplest ways to keep saliva moving freely.
Medications That Cause Dry Mouth
Many common medications reduce saliva production, including antihistamines, diuretics, some blood pressure drugs, antidepressants, and anticholinergic medicines. With less saliva flowing, minerals concentrate in the ducts. If you take these medications and develop gland swelling, talk to your doctor before changing any of your prescriptions.
Other Risk Factors
Other risk factors include smoking, injury to the mouth or duct, chronic inflammation of the salivary glands, gum disease, and conditions such as gout. Men are affected slightly more often than women. Having had one salivary stone also raises the chance of developing another in the future.
Salivary Stone Symptoms
Salivary stone symptoms depend on the stone's size and location, and on whether it fully blocks the duct. Small stones may cause no symptoms at all and are sometimes found by chance on X-rays. Larger stones usually cause pain and swelling linked to eating, when the gland produces the most saliva.
Pain and Swelling During Meals
The most typical salivary gland stone symptoms are pain and swelling under the jaw or in front of the ear that start during or shortly after meals. The sight, smell, or taste of food increases saliva production, but the saliva cannot drain past the stone. The swelling often goes down within one to two hours.
Lump Under the Tongue or Jaw
Some patients notice a small, hard lump under the tongue, where the submandibular duct opens, or a firm swelling beneath the jaw. A salivary stone close to the duct opening may even appear as a white or yellowish spot. The area may feel tender when pressed or while chewing.
Signs of Infection
Blocked saliva can become infected, a condition called sialadenitis. Signs include constant pain, redness and warmth over the gland, fever, a bad taste in the mouth, and pus draining into the mouth from the duct opening. An infected gland needs prompt medical attention and often antibiotic treatment.
Learn more about: tooth infection on xray
How Is a Salivary Stone Diagnosed?
Diagnosing a salivary stone starts with your symptoms and a physical examination, followed by imaging if needed. The clinician needs to know the stone's size, how many stones there are, and exactly where they sit. These details decide whether the stone can be managed conservatively, removed through the mouth, or needs more advanced treatment.
Physical Examination
The clinician examines the mouth, the floor of the mouth, and the neck. They gently press inside and outside at the same time to feel for a stone. They also check the duct opening for saliva flow or pus. Stones near the front of the submandibular duct can often be felt directly.
Imaging Tests
Ultrasound is usually the first imaging test, because it is quick, uses no radiation, and detects most stones. Dental X-rays, such as occlusal views, can show calcified stones in the floor of the mouth, although some stones do not appear on X-ray. A low-dose CT scan can locate any salivary stone precisely.
Sialendoscopy for Diagnosis
Sialendoscopy uses a very thin camera, inserted through the natural duct opening, to look inside the salivary duct. Specialists can see stones, narrowed areas, or debris directly, and often treat the problem in the same session. It is usually performed by an ear, nose, and throat specialist.
Salivary Stones Treatment
Salivary stones treatment depends on the size and location of the stone and on how severe the symptoms are. Many small stones pass on their own with conservative care. Larger or stubborn stones need removal. Options range from simple procedures through the mouth to minimally invasive endoscopic techniques and, rarely, surgery.
Home Care and Conservative Treatment
For small stones, salivary gland stone treatment often begins at home. The aim is to increase saliva flow so the stone is pushed toward the duct opening and out. Many patients find that a small salivary stone passes naturally within days to weeks with these simple measures.
Hydration and Sour Foods
Drinking plenty of water keeps saliva thin and flowing. Sucking on sugar-free sour candies or lemon wedges triggers strong saliva production, which can push small stones out of the duct. Foods that stimulate saliva like this are called sialogogues, and they are a standard first step in conservative care.
Warm Compresses and Gland Massage
Applying a warm compress over the swollen gland several times a day eases pain and helps it drain. Gently massaging the gland from back to front, toward the duct opening, can help move the stone forward. Stop massaging if the pain becomes severe, and seek professional advice.
Medications
Over-the-counter pain relievers and anti-inflammatory medicines can reduce pain and swelling. If the gland becomes infected, a doctor may prescribe antibiotics. Medications ease symptoms and treat infection, but they do not dissolve stones. If the stone stays in place, symptoms often return and removal may be needed.
Learn more about: veneers turkey package
Salivary Stone Removal
When conservative care fails, salivary stone removal is recommended. The method depends on where the stone sits, how large it is, and which gland is affected. Modern techniques aim to remove the stone while preserving the gland and its function whenever possible.
Manual Removal
A stone lying very close to the duct opening can sometimes be gently massaged or pushed out by a clinician, occasionally after the opening is widened slightly. This quick procedure is often done under local anesthesia and causes little discomfort. Relief is immediate once the blockage is cleared.
Minor Duct Surgery
If a salivary stone can be felt in the front part of the submandibular duct, salivary gland stone removal can be done through a small incision inside the mouth under local anesthesia. The duct is opened over the stone and the stone is lifted out. Healing is usually quick.
Sialendoscopy
Sialendoscopic removal uses a tiny camera with miniature baskets or graspers to catch and remove stones from inside the duct. It is minimally invasive, leaves no external scar, and preserves the gland. It works best for smaller stones; larger ones may need to be broken up first.
Lithotripsy
Lithotripsy breaks larger stones into small fragments using shock waves or laser energy. The energy is delivered either from outside the skin or through an endoscope inside the duct. The fragments are then flushed out naturally or removed. This technique can avoid gland removal when a stone is too large to take out whole.
Gland Removal Surgery
Surgical removal of the affected gland may be recommended when stones are large, lie deep inside the gland, or keep coming back with repeated infections. This is most often done for the submandibular gland. A recurrent salivary stone that damages the gland is the main reason this option is considered.
Complications of an Untreated Salivary Stone
An untreated salivary stone can cause repeated gland infections, abscesses, and narrowing or scarring of the duct. Long-term blockage may permanently damage the gland and reduce its saliva production. Severe infections can spread to the surrounding tissues of the neck, so persistent swelling should always be checked rather than ignored.
Can a Salivary Stone Be Prevented?
Not every salivary stone can be prevented, but you can lower the risk. Drink enough water every day, keep up good oral hygiene, and avoid smoking. Use sugar-free sour candies if your mouth feels dry. Ask your doctor whether any medication you take contributes to dry mouth.
When Should You See a Doctor?
See a professional if gland swelling keeps returning at mealtimes, lasts more than a few days, or if you can feel a lump under your tongue. Seek urgent care for fever, rapidly spreading swelling, pus, or difficulty swallowing or breathing. These signs may point to a serious infection caused by a salivary stone.
Learn more about: Traditional vs Immediate Dental Implants
How Vitrin Clinic Helps With Salivary Stones
At Vitrin Clinic, a salivary stone is often first detected during a dental examination or on routine dental X-rays. The team evaluates your symptoms, examines the floor of the mouth, and arranges suitable imaging. Simple cases near the duct opening can be managed directly, and complex cases are directed to appropriate specialist care.
What We Notice Clinically
At Vitrin Clinic, we notice that many patients mistake salivary gland stones for tooth pain or gum swelling. The Head of the Medical Team at Vitrin Clinic, a cosmetic dentist, points out that swelling linked to meals is a key clue. Recognizing a salivary stone early allows simpler, gland-preserving treatment.
Tips for the Patients
Stay well hydrated throughout the day. Thin saliva flows freely and is less likely to form stones.
Use sugar-free sour candies. They stimulate saliva flow and help small stones pass.
Apply warm compresses and gently massage swollen glands. This eases pain and encourages drainage.
Maintain good oral hygiene and attend regular dental check-ups. Many stones are found early during routine visits.
Seek care promptly for fever, pus, or persistent swelling. These may be signs of an infection that needs treatment.
Frequently Asked Questions About Salivary Stones
What is a salivary stone?
A salivary stone is a hard, calcified deposit that forms in a salivary gland or its duct and blocks the flow of saliva. It most often affects the submandibular gland under the jaw. The condition is called sialolithiasis. It causes pain and swelling, especially during meals, and is usually treatable.
What are the most common salivary gland stone symptoms?
The most common signs are pain and swelling under the jaw or near the ear during meals, a hard lump under the tongue, a dry mouth, and a bad taste. If the gland becomes infected, redness, fever, and pus may appear. An infected gland needs prompt treatment.
Can salivary gland stones go away on their own?
Yes, small stones often pass naturally, especially with good hydration, sour candies, warm compresses, and gentle gland massage. Larger stones, or those deep inside the gland, usually do not pass and need professional removal. If symptoms last more than a week or two, get an evaluation.
What causes salivary gland stones?
Stones form when saliva becomes thick or slow-flowing, which lets minerals such as calcium crystallize. Common contributors include dehydration, medications that cause dry mouth, smoking, injury to the duct, and chronic gland inflammation. Gout and the drop in saliva production that comes with age may also increase the risk.
How is salivary gland stone removal performed?
Removal depends on where the stone is and how large it is. Stones near the duct opening can be massaged out or removed through a small incision inside the mouth. Deeper stones may be removed with sialendoscopy or broken up with lithotripsy. Gland removal is reserved for large or recurring cases.
Is sialolithiasis dangerous?
Sialolithiasis is usually not dangerous and responds well to treatment. Ignoring it, however, can lead to repeated infections, abscesses, duct scarring, and permanent gland damage. Fever, spreading swelling, or difficulty swallowing are warning signs that need urgent medical attention.
Can a dentist detect a salivary duct stone?
Yes. Dentists often find a salivary duct stone during an oral examination or on dental X-rays, especially when it sits in the floor of the mouth. At Vitrin Clinic, patients with a suspected stone receive a careful assessment, advice on early care, and a referral when advanced treatment is needed.
