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 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 6/23/2026 Judy V had this to say:
I had 3 procedures done by Dr. Liaros this past year. He was very professional in planning the care that was needed and considerate in taking the time to communicate his plan. His team made sure that I was pain free during the procedures. Also, his office staff is on top of the billing process and dental insurance issues. I am very pleased with the results and highly recommend their Periodontal care.

On 6/18/2026 Maria A Solis had this to say:
I had an outstanding experience with both my Dr. Modarressi and Maggie. They were professional, knowledgeable, and incredibly attentive, making me feel comfortable and well cared for throughout my visit. Maggie was gentle and thorough, and Dr. Modarressi demonstrated exceptional expertise and coolness. My treatment and coverage options were clearly and thoroughly explained, which gave me great confidence moving forward. I highly recommend them to anyone looking for excellent periodontal and dental hygiene care!

On 5/26/2026 debra tracy had this to say:
Dr. Larios is great! He is very thorough and explains what he needs to do to your teeth and why.

On 5/21/2026 Art Made Interesting had this to say:
The dental hygienist and doctor are very professional and very friendly. I have gone to them for 30 years and wouldn’t think of going anywhere else for everything from having my teeth cleaned to having implants. They’re the best!

On 5/14/2026 susanne furlan had this to say:
Great service

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

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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