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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.

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Areas Served

Oak Brook, IL | Downers Grove, IL | Willowbrook, IL | Hinsdale, IL | Hillside, IL | Elmhurst, IL | Villa Park, IL

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

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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

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Testimonials

On 9/12/2025 Mark Kinsman had this to say:
Dr. Liaros is an outstanding oral surgeon. He has done work for both myself and my wife and I could not be more pleased with the results as well as the process. His caring mannerism is a model that all other oral surgeons should strive to do. I highly recommend Dr. Liaros for any of your oral surgical needs.

On 9/6/2025 Lydia Weber had this to say:
I have been a patient for over 2 yrs. They have always been so professional and accommodating. Love Dr. Moderressi

On 8/29/2025 Mark Puc had this to say:
Staff that makes you feel welcome and heard. Interested Doctor regarding my teeth and life updates.👍🏼 A nice experience. 😬🦷

On 8/27/2025 Tracey McCarroll had this to say:
The staff are very caring, patient, and friendly. Dr. Modarressi has an excellent bedside manner; she is calm, explains everything clearly, and genuinely cares about her patients. The office is very professional overall.

On 8/18/2025 Jerry Sanders had this to say:
My experience was very good

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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

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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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