This webpage has been designed to improve understanding of Arthrocentesis and contains answers to the most commonly asked questions about this treatment. If you have any other questions that the website does not answer or would like further explanation please ask a member of our medical staff.

The problem
The disc of cartilage, which lies in the jaw joint has moved out of its normal position between the bones.

What is a jaw joint arthrocentesis?
An arthrocentesis is a procedure during which the jaw joint is washed out with sterile fluid. It aims to return the disc of cartilage to its normal position within the joint.

What does the treatment involve?
An arthrocentesis usually takes place under a general anaesthetic, ie the patient will be put to sleep completely. While the patient is asleep two small needles will be inserted into the jaw joint. One of these needles allows sterile fluid to be pumped into the joint under pressure. The second needle allows fluid to be drained out of the joint.

Will any further treatment be performed when the patient is asleep?
While the patient is asleep their lower jaw will often be manipulated in an attempt to encourage the disc of cartilage back into its normal position.

What can be expected after the operation?
The area in and around the jaw joint is often uncomfortable for a day or two after the procedure. Patients may find it necessary to take simple painkillers (eg Ibuprofen) during this time. There will also be some swelling in front of the ear. Patients may also find it difficult to open their jaw for a few weeks.

Will another appointment be required?
Patients will need to return a few weeks after surgery to have their jaw joint checked by their surgeon. Arthrocentesis is not always successful and even in those people who have an improvement following the procedure it can take several months for this to occur.

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