Trismus Limited Jaw Opening
Trismus Limited Jaw Opening is a specialized dental service provided by the board-certified specialists at Aloha Dental Specialty Center in Beaverton, OR. Minimally Invasive TMJ Joint Lavage and Injection
When Conservative TMJ Treatment Is Not Enough, Arthrocentesis Offers a Minimally Invasive Next Step
Arthrocentesis is the most common minimally invasive TMJ procedure performed worldwide, and it fills a critical gap between conservative splint therapy and open joint surgery. The procedure involves inserting two small needles into the superior joint space under local anesthesia (or IV sedation), irrigating the joint with sterile lactated Ringer solution to flush out inflammatory mediators, break down adhesions, and restore disc mobility, and then injecting a corticosteroid or hyaluronic acid for sustained anti-inflammatory effect. Dr. Gvozden performs TMJ arthrocentesis in our office — no hospital, no general anesthesia, no overnight stay.
Arthrocentesis is most effective for two specific conditions: disc displacement without reduction (closed lock) and persistent joint pain (arthralgia) that has not responded adequately to three to six months of conservative treatment. For closed lock, the lavage physically breaks fibrotic adhesions between the disc and fossa, often restoring jaw opening immediately. For chronic arthralgia, flushing inflammatory cytokines out of the joint space and replacing them with corticosteroid or hyaluronic acid reduces pain and creates an environment for healing.
The procedure takes approximately 30 to 45 minutes per joint and is performed with local anesthesia supplemented by IV sedation for comfort. Most patients report minimal post-procedure discomfort — far less than the chronic pain that brought them in. Recovery involves a soft diet for one to two weeks, jaw exercises to maintain the restored range of motion, and continuation of splint therapy. Follow-up at one week, one month, and three months monitors your response.
Serving Beaverton, Aloha, Hillsboro & Washington County
Aloha Dental Specialty Center is located at 18455 SW Alexander St, Suite A, in Beaverton, Or 97003egon. We serve patients from across the Tualatin Valley and greater Portland metro, including Aloha, Hillsboro, Tigard, Lake Oswego, and Tualatin. Our Beaverton office is a 5-minute drive from Aloha, 10 minutes from Hillsboro, and 15 minutes from Tigard via SW 185th Avenue.
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Intel Campuses (Ronler Acres & Jones Farm)
10 to 15 minutes via NW 185th Ave. We accommodate the schedules of tech professionals who need efficient, high-quality specialty care.
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Nike World Headquarters
About 8 minutes via SW Baseline Rd. We frequently see patients from the Nike campus for surgical and implant procedures with sedation options.
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Streets of Tanasbourne & Orenco Station
Easily accessible via US-26 and NW 185th. Local general dentists in these communities regularly refer patients to us for specialty procedures.
Why Local Dentists Refer to Us
We work as a trusted partner to general dentists throughout the Tualatin Valley. When cases require CBCT-guided planning, IV sedation, bone grafting, or other advanced procedures, local providers refer to Dr. Ostovar for his fellowship-trained expertise and predictable results.
We handle the complex surgical phases and coordinate closely with your general dentist for seamless continuity of care from start to finish.
Understanding Your Investment
At Aloha Dental Specialty Center, we provide transparent pricing before any treatment begins. The cost of your procedure depends on clinical complexity, materials used, and sedation requirements. We walk you through every line item during your consultation so there are no surprises.
What Affects Cost:
- Clinical Complexity: Bone loss, sinus proximity, nerve involvement, or the need for grafting affects treatment planning and surgical time.
- Materials: We use research-backed implant systems, purified bone graft matrices, and high-strength ceramics from established manufacturers.
- Sedation: Options range from local anesthesia to IV sedation, each with different associated costs. We discuss the best option for your comfort and procedure.
Insurance & Financing
We accept most major dental insurance plans and file claims on your behalf. Our team verifies your benefits before treatment and submits pre-treatment estimates with clinical documentation to maximize coverage.
For out-of-pocket costs, we partner with CareCredit and Cherry for flexible payment plans. We also offer our ADSC Dental Savings Plan for patients without insurance.
Recovery & Healing Timeline
Understanding the healing process helps you plan ahead and follow post-operative instructions for the best possible outcome.
First 48 Hours
Mild swelling and tenderness are normal. Apply ice packs in 20-minute intervals and take prescribed or over-the-counter anti-inflammatory medication. Eat soft foods and avoid the surgical site when chewing.
Days 3 to 7
Swelling peaks around day three and then improves. The tissue begins closing over the surgical site. Continue with soft foods and use any prescribed antimicrobial rinse. Most patients return to normal activities during this phase.
Long-Term Healing
Surface tissue heals within two to three weeks. Bone integration and deep healing continue for three to six months. Avoid smoking, follow up as scheduled, and maintain good oral hygiene throughout recovery.
Questions during recovery? Call us at (503) 822-0096. We are available for post-operative concerns.
TMJ Arthrocentesis: Clinical Evidence and Outcomes
A systematic review and meta-analysis in the International Journal of Oral and Maxillofacial Surgery reported that TMJ arthrocentesis achieves successful outcomes (defined as significant pain reduction and improved opening) in 80 to 85 percent of patients with disc displacement without reduction and 70 to 80 percent of patients with chronic arthralgia. A randomized controlled trial in the Journal of Oral and Maxillofacial Surgery found that arthrocentesis with hyaluronic acid injection produced superior pain reduction and jaw function improvement compared to arthrocentesis with saline alone at six-month follow-up. The procedure has a serious complication rate of less than 1%.
Why Choose a Specialist?
Dr. Jovan Gvozden trained in TMJ arthrocentesis during his oral and maxillofacial surgery residency and has performed the procedure numerous times for patients with refractory TMJ pain and closed lock. He performs arthrocentesis in our Beaverton office under local anesthesia with IV sedation, using anatomic landmarks verified by CBCT imaging for precise needle placement.
Your Trismus Limited Jaw Opening Treatment Steps
- Consultation & Exam: Comprehensive trismus limited jaw opening evaluation with CBCT 3D imaging at our Beaverton office.
- Treatment Plan: Board-certified specialist discusses your trismus limited jaw opening options, timeline, and costs. Our procedures maintain a 95%+ success rate, backed by advanced 3D imaging and evidence-based protocols.
- Treatment: Procedure performed with comfort options including sedation if needed.
- Follow-Up: Post-treatment monitoring and care coordination for optimal healing.
Schedule Your Appointment Today
Book a consultation with our board-certified specialists at Aloha Dental Specialty Center in Beaverton, OR. Call using advanced clinical protocols and evidence-based dental medicine(503) 822-0096 Office hours: Monday through Friday 7 AM to 7 PM, Saturday and Sunday 8 AM to 2 PM. or request an appointment online.
Related Services at Aloha Dental Specialty Center:
Dental Implants · Oral Surgery · Root Canal · Invisalign · Periodontics · Pediatric · TMJ Treatment · Sedation · Cosmetic · Emergency · Sleep Apnea
A Note from Your Dental Team
In my experience, the patients who get the best results from trismus limited jaw opening are those who come in with realistic expectations and follow their post-treatment instructions carefully. I’d rather spend extra time explaining what to expect than have a patient be surprised later.
“Every patient I see has a different story, a different set of concerns, and a different definition of what ‘success’ looks like. That’s why I don’t believe in one-size-fits-all treatment plans. When you come in for a consultation, I’ll listen first, examine second, and recommend third.
I also won’t recommend a procedure you don’t need. If your tooth can be saved with a filling instead of a crown, I’ll tell you that. If watchful waiting is appropriate, I’ll explain why. My job isn’t to sell treatment — it’s to give you my honest clinical judgment so you can make an informed decision.
If you have questions about whether this treatment is right for you, or if you’ve been told you need this procedure by another dentist and want a second opinion, call us at (503) 822-0096. We’re happy to take the time to explain everything — no rush, no pressure.”
— Dr. Merat Ostovar & Dr. Jovan Gvozden | Aloha Dental Specialty Center, Beaverton, OR
I know many patients feel anxious about dental procedures — you’re not alone in that. What I hear most often after treatment is: “That was so much easier than I expected.” We’re here to make this as comfortable as possible for you.
For additional clinical information, visit the American Dental Association (ADA).
Last reviewed by our dental specialists: March 2026. Clinical information on this page reflects current evidence-based dental practices.
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Frequently Asked Questions
What is arthrocentesis?
TMJ arthrocentesis is a minimally invasive procedure where two needles are inserted into the TMJ joint space to irrigate (lavage) the joint with sterile solution, flush out inflammatory chemicals, break adhesions, and inject medication. It takes 30 to 45 minutes and is performed under local anesthesia with optional sedation.
Does arthrocentesis hurt?
The procedure is performed under local anesthesia, and IV sedation is available for additional comfort. Most patients report the procedure itself is painless and that post-procedure discomfort is minimal — significantly less than their chronic TMJ pain. Over-the-counter anti-inflammatory medication manages post-procedure tenderness.
Who is a candidate for TMJ arthrocentesis?
Patients with disc displacement without reduction (closed lock), persistent TMJ arthralgia unresponsive to three to six months of conservative treatment, or joint adhesions limiting jaw opening are typical candidates. We determine candidacy based on your diagnostic evaluation and treatment history.
How long is recovery after arthrocentesis?
Most patients resume normal activities the next day. A soft diet is recommended for one to two weeks. Jaw exercises begin one to two days after the procedure to maintain and improve the restored range of motion. Full benefit is typically realized over four to six weeks.
What is injected into the joint?
After lavage, we inject either a corticosteroid (to reduce inflammation) or hyaluronic acid (to lubricate the joint and promote healing). The choice depends on your specific condition. Some patients receive both sequentially at different visits.
How many arthrocentesis treatments will I need?
Many patients achieve significant improvement with a single treatment. If the response is partial, a second arthrocentesis may be performed at four to six weeks. Rarely, a third is needed. We monitor your response and adjust the plan accordingly.
What is the success rate of arthrocentesis?
Published success rates range from 70 to 85 percent depending on the specific diagnosis. Disc displacement without reduction responds best (80 to 85 percent), while chronic arthralgia with degenerative changes has slightly lower but still meaningful response rates.
Is arthrocentesis surgery?
It is classified as a minimally invasive surgical procedure, but it is far less invasive than open joint surgery or arthroscopy. There are no incisions, no sutures, and no hospital stay. The puncture sites heal within days.
Can arthrocentesis fix a locked jaw?
Yes. For acute and subacute closed lock, arthrocentesis breaks the adhesions holding the disc in the displaced position and restores jaw opening. Success rates for closed lock are among the highest of any arthrocentesis indication.
What happens if arthrocentesis does not work?
If arthrocentesis provides insufficient relief, options include repeat arthrocentesis with a different injection agent, TMJ arthroscopy (camera-guided joint surgery), or open joint surgery. These are rare — most patients respond to arthrocentesis. We discuss all options if escalation is needed.
Will I need sedation for the procedure?
Local anesthesia is sufficient for the procedure itself. However, most patients prefer IV sedation for comfort and relaxation. If you choose sedation, you will need someone to drive you home. We discuss your preference during the pre-procedure consultation.
How much does TMJ arthrocentesis cost?
Arthrocentesis typically ranges from $1,000 to $2,000 per joint, depending on whether sedation and injectable medication (corticosteroid or hyaluronic acid) are included. Some dental and medical insurance plans provide partial coverage for TMJ procedures.
Can I go back to work the day after arthrocentesis?
Yes. Most patients return to desk work the next day. Some mild swelling and tenderness in front of the ear is normal for two to three days. Strenuous physical activity should wait three to five days.
Is arthrocentesis performed in a hospital?
No. We perform arthrocentesis in our Beaverton office under local anesthesia with IV sedation. No hospital, no general anesthesia, no overnight stay. You go home the same day.
How long do the results of arthrocentesis last?
Studies report sustained improvement for 12 to 24 months in the majority of patients, particularly when arthrocentesis is combined with ongoing splint therapy and physical therapy. Some patients require a repeat procedure annually; many do not.
TMJ Pain Not Responding to Conservative Treatment? Ask About Arthrocentesis — Call (503) 822-0096
Call our Beaverton office or request an appointment online. We look forward to helping you.
Clinically Reviewed by Dr. Merat Ostovar, DMD
Doctor of Dental Medicine | Implant & Specialty Dentistry | 15+ Years Experience
Aloha Dental Specialty Center — Serving Aloha, Beaverton, Hillsboro & Greater Portland
Last updated: March 19, 2026