TMJ Arthrocentesis: The Jaw Joint Flush, Explained
Medically reviewed by Dr. Sergio Calleja, DDS, MPH — Board-Certified Oral & Maxillofacial Surgeon · Last reviewed 2026-06-05
Arthrocentesis — sometimes called joint lavage, or simply a "jaw joint flush" — is the least invasive procedure in TMJ care. Using two thin needles and sterile fluid, the joint is rinsed from the inside: no incisions, no camera, and in many cases no operating room.
For the right patient — especially someone whose jaw has locked closed or who has persistent joint pain despite splints and physical therapy — this simple procedure can produce meaningful relief. Systematic reviews report success in roughly 80 percent of closed-lock cases, and it never burns any bridges: every other treatment option remains open afterward.
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Confirming You Are a Candidate
Dr. Calleja examines your joint, reviews your conservative treatment so far (splint, physical therapy, medication), and uses imaging — 3D CBCT and, when needed, MRI — to confirm the problem lives inside the joint itself: a displaced disc, inflammation, or early adhesions. Arthrocentesis is most effective for a jaw that has locked closed or joint pain that persists despite good conservative care.
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Numbing and Comfort
The procedure is done under local anesthesia, usually with IV sedation for comfort — available in the office, so many patients never need a hospital visit. You will not feel pain at the joint, and with sedation most patients remember little of the procedure.
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The Lavage
Two thin needles are placed into the upper compartment of the joint, just in front of the ear. Sterile physiologic fluid flows in through one needle and out through the other, gently washing the joint under controlled pressure. The rinse flushes out the inflammatory chemicals that drive pain, and the gentle hydraulic pressure can free early adhesions and help a stuck disc glide again.
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Optional Medication
Before the needles come out, Dr. Calleja may place medication directly into the joint — typically an anti-inflammatory (corticosteroid) or a joint lubricant (hyaluronic acid) — depending on what your joint needs.
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Home the Same Day
The whole procedure typically takes 15 to 30 minutes. There are no stitches — just needle marks that fade in days. You go home shortly afterward with jaw exercises to begin the next day.
Arthrocentesis vs. Arthroscopy: Which One and When?
Think of them as two rungs on the same ladder. Arthrocentesis is needles-only: it rinses the joint blind, without a camera, and works best for closed lock, inflammation, and early adhesions. Arthroscopy adds a two-millimeter camera and instruments, letting Dr. Calleja see inside the joint, cut established scar tissue free under direct vision, and treat inflamed tissue precisely.
Many patients start with arthrocentesis because it is simpler, gentler, and often done in the office. If relief is incomplete — or imaging already shows established adhesions or more advanced internal derangement — arthroscopy is the logical next step. Arthrocentesis can also be repeated; published experience shows repeat lavage raises overall success and helps many patients avoid bigger procedures altogether.
What the Evidence Shows
Systematic reviews of arthrocentesis for closed lock report a mean success rate of about 83 percent, with the broader literature on joint lavage showing good outcomes in roughly 60 to 80 percent of well-selected cases. Randomized trials show better pain relief with lavage than with non-surgical therapy alone. As with all TMJ care, honest patient selection is everything — Dr. Calleja will tell you plainly whether your joint findings fit the profile that responds well.
Call Us Right Away If You Notice
- Fever above 100.4°F (38°C) after the procedure
- Swelling in front of the ear that keeps increasing after the first two days
- New weakness in facial movement (rare and almost always temporary — but tell us right away)
- Severe pain not controlled by the recommended medication
- Your bite feels significantly different for more than a few days
Office: (301) 645-6911 (Waldorf) · (301) 863-8107 (California, MD). For emergencies, call 911.
Frequently Asked Questions
What is the success rate of TMJ arthrocentesis?
Systematic reviews report a mean success rate of about 83 percent for closed lock — a jaw stuck in a limited-opening position — with the broader lavage literature showing good outcomes in roughly 60 to 80 percent of well-selected patients. Success is highest when the problem is inflammation, early adhesions, or an acutely stuck disc.
Does arthrocentesis hurt?
The joint is fully numbed with local anesthesia, and most patients also choose IV sedation, so the procedure itself is comfortable. Expect soreness in front of the ear for a few days afterward, managed with over-the-counter medication and ice.
Is arthrocentesis done in the office or a hospital?
Usually in the office. Our practice offers IV sedation on-site at both the Waldorf and California, Maryland locations, which is one of the advantages of arthrocentesis over larger procedures.
How fast will I feel relief?
Some patients notice easier opening the same week — especially when a locked jaw releases. Pain from inflammation typically improves over days to a few weeks as the flushed joint settles and jaw exercises restore motion.
Can arthrocentesis be repeated if symptoms return?
Yes. Repeating the lavage is safe and common, and published experience shows repeat arthrocentesis increases overall success — for many patients it is what keeps larger surgery permanently off the table.
What happens if arthrocentesis does not work for me?
Nothing is lost — the procedure does not change the joint's anatomy, so every option remains open. The usual next step is TMJ arthroscopy, where a small camera lets Dr. Calleja treat scar tissue and inflamed tissue under direct vision. See the main TMJ surgery guide for how that works.
How much does TMJ arthrocentesis cost, and does insurance cover it?
When there is a documented joint diagnosis and conservative care has been tried first, arthrocentesis is typically billed to medical insurance and covered as a medically necessary procedure. Our team verifies your benefits and handles pre-authorization before scheduling.
Have Questions About TMJ Surgery?
Dr. Calleja evaluates every case personally at the Waldorf and California, MD offices — consultations in English or Spanish.
This page is general patient education, not personal medical advice. Every patient's anatomy and health history are different — treatment details, risks, and recovery vary case by case and are reviewed with you during your consultation. For emergencies, call 911.