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.

Periodontal and Implant Specialties - 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 10/1/2026 Liz A had this to say:
Dr Liaros did a really good on my gums. Its to early to tell the results but the surgery within itself was very proficient. He made sure throughout the process I was comfortable. He also called me the next day personally to check up on me. I would recommend this place for all your periodontist needs.

On 9/26/2026 Anna Marie DeLeo had this to say:
A wonderful experience. If anyone needs periodontal work done Dr. Liaros is the doctor to go to. I would recommend him highly. He is so personal and knowledgeable. AAnd he has a wonderful staff. He fixed my loose bridge, which is not his specialty. I called at 10:15 and they asked if I could be there at 11.

On 9/20/2026 Ann Stamatopoulos had this to say:
Have been a patient for many years. Such a patient and kind doctor. Staff is exceptional and I have always had excellent care.

On 9/10/2026 Lee Koutsky had this to say:
I always get great treatment at Periodontal Implant Specialists, everyone is nice and Dr Liaros is the best 👌

On 9/6/2026 John Sorensen had this to say:
Very professional and caring staff

Contact Us

Periodontal and Implant Specialties - 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

News

This summer, restore your smile and confidence with Periodontal Implant Specialists, Ltd. - Peter Liaros, DDS in Oak Brook, IL—a trusted periodontist serving Oak Brook, Downers Grove, Hinsdale, Elmhurst, and surrounding areas since 1972.
We specialize in dental implants, periodontal treatments, and advanced oral procedures, using the latest techniques to deliver exceptional results. Dr. Liaros provides personalized care, taking time to explain every procedure and ensure your comfort before and after treatment.
Looking for a compassionate and experienced periodontist in Oak Brook, IL? Contact Periodontal Implant Specialists today and experience expert care where every patient is treated like family! 😁

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

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