What services do you provide?

We specialize in advanced periodontal and implant procedures, including surgical dental implants, crown lengthening, scaling and root planing (deep cleaning), pocket reduction surgery, osseous surgery, and bone grafting. Our goal is to restore oral health and improve your smile with the latest techniques.

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Periodontal Implant Specialists, Ltd. - Peter Liaros, DDS

"We Care About Your Smile"

About Us

Periodontal Implant Specialists, Ltd. - Peter Liaros, DDS, in Oak Brook, IL, is the leading periodontist serving Oak Brook, Downers Grove, Willowbrook, Hinsdale, Villa Park, Elmhurst and surrounding areas since 1972. We offer the latest techniques and procedures in order to provide the highest quality dental care available. Dr. Liaros will personally explain the recommended procedures and answer all of your questions. Your comfort is our priority. Dr. Liaros provides his cellular phone number to all patients should any questions or concerns arise before and after a procedure. Every patient is treated like family! For more information, contact Periodontal Implant Specialists, Ltd. - Peter Liaros, DDS in Oak Brook.

Areas Served

Our Professional Associations

American Dental Association
Illinois Society of Periodontists
Chicago Dental Society
Midwest Society of Periodontology
American Academy of Periodontists
Illinois State Dental Society

Our Certifications

Over 33 Years of Experience

What We Offer

Our Specialties include:

Diagnosis and Treatment of Problems that Affect the Gums and Other Supporting Tissues of the Teeth, and Replacing Missing Teeth with Dental Implants

Our Services include:

Surgical Implants
Crown Lengthening
Scaling and Root Planing, Deep Cleaning
Pocket Reduction Surgery
Osseous Surgery
Bone Replacement Grafts
Gingivectomy
Gingivoplasty
Oral Plastic Surgery
Tooth Extractions
Sinus Augmentation
Biopsy
Ridge Augmentation
Frenectomy
Periodontal Maintenance Cleaning
All On 4 Implants
Gum Grafts
Gingival Grafts
All-On-4 Implants

Our Brands include:

BioHorizons
NobelReplace
Straumann
Steri-Oss

Testimonials

On 2/5/2026 Calli West had this to say:
Really nice respectful clinic. Would recommend to anyone!

On 2/4/2026 Vivian Fountalas had this to say:
Everyone in the office was very helpful and very friendly. Dr Liaros has a great "bedside manner". Also, he works expeditiously and strives to make you feel comfortable, which I greatly appreciated since I was very nervous about my procedure.

On 1/30/2026 Dave Hofrichter had this to say:
Excellent care. Always addresses any questions. Caring and understanding of my needs.

On 1/29/2026 Giota Lekkas had this to say:
I had a wonderful experience at this periodontist’s office. From the moment I walked in, the staff made me feel comfortable and genuinely listened to my concerns. The doctor was incredibly knowledgeable, patient, and took the time to explain everything clearly without rushing me. I truly felt understood and cared for, which made a huge difference. I’m very grateful for such a positive experience and would highly recommend this practice to anyone looking for compassionate, professional periodontal care.

On 1/22/2026 Anton Lessmeister had this to say:
Great practice, Dr Liaros is very patient focused, and interested in making sure the patient feels as little discomfort as possible. The entire team is great!

Contact Us

Periodontal Implant Specialists, Ltd. - Peter Liaros, DDS
120 Oakbrook Center Mall #528 Oak Brook, IL 60523
Phone: (630) 571-3430
Fax: (630) 571-3567
Email: periodontala@yahoo.com

Oak Brook Mall

Payment Types Accepted

Insurance, Visa, MasterCard, American Express, Discover, Personal Checks, Debit Cards, Care Credit

Our Hours

Holiday Hours May Vary. Please Call For Details.

Monday: 9:00 AM - 1:00 PM
Tuesday: 8:00 AM - 5:00 PM Alternating Tuesdays & Thursdays Dr. Marmar Modarressi at the Oakbrook Location
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM Alternating Tuesdays & Thursdays Dr. Marmar Modarressi at the Oakbrook Location
Friday: 8:00 AM - 1:00 PM
Saturday: 8:00 AM - 1:00 PM

FAQ

Do you offer dental implants?

Yes! We provide surgical dental implants as a permanent solution for missing teeth. Implants help restore function and aesthetics while preserving jawbone health. During your consultation, we’ll explain the process and answer all your questions.

Do you accept insurance?

Yes, we work with most dental insurance plans. Our team will help verify your coverage and explain your benefits before treatment begins. We also offer flexible payment options for uninsured patients.

What areas do you serve?

We proudly serve Oak Brook, Downers Grove, Willowbrook, Hinsdale, Villa Park, Elmhurst, and surrounding communities. If you’re unsure whether we cover your area, call us at (773) 229-1081.

How can I contact your office?

You can reach us by phone at (773) 229-1081, visit our office at 6715 W Archer Ave, Chicago, IL 60638, or use the contact form on our website. We’re happy to answer questions or schedule your appointment.

Locations

120 Oakbrook Center Mall #528 Oak Brook, IL 60523 - (630) 571-3430
6715 W Archer Ave Chicago, IL 60638 - (773) 229-1081