Learn More About Us

Providing quality Periodontal Services to Westminster and the surrounding Carroll County Community


Periodontist in Westminster MD - Justin W. Kleinman, DMD

Endodontist Westminster, MD Sean O'Sullivan, DDS

Westminster Periodontist Dr. Justin Kleinman and the team

Welcome to Carroll Periodontics, Endodontics, and Implant Dentistry

Welcome to our practice website. We congratulate you on taking the first step toward better periodontal health. At Carroll Periodontics, Endodontics, and Implant Dentistry your smile is our first priority. Please utilize this website as a resource. It will help you better understand your course of treatment and answer any questions related to periodontal therapy.

Dr. Kleinman is a board-certified specialist in periodontics and implantology. Our office specializes in conservative and surgical treatment of gum disease including cosmetic procedures to aesthetically enhance your smile, as well as dental implants that can replace single or multiple missing teeth.

Dr. O’Sullivan is board-certified specialist in endodontics.  The culprit of dental pain is usually an infected root canal system requiring endodontic therapy to get the patient out of pain.

Although no one likes to go to the doctor or dentist, we strive to make your visits with us as comfortable and pleasant as possible. We strongly believe that our patient’s comfort is an important part of quality dental care.

Drs. Kleinman & O’Sullivan believes that your right to choose a dentist is an important freedom. We work closely with your dentist, but a referral by a dentist is not required to visit our office. We also welcome referrals from patients and friends of the practice.

Ready to Schedule Your Consultation?
For more information or to schedule a consultation with Dr. Kleinman or Dr. O'Sullivan, call our practice at Carroll Periodontics Office Phone Number 410-857-5700

We are extraordinarily proud of our staff, which is comprised of caring and dedicated professionals. They ensure that the patient’s surgical and administrative needs are met as efficiently and smoothly as possible.

Our goal is to make you feel comfortable and relaxed. We are here to listen to your questions and concerns and to help provide solutions leading to your better health. Please do not hesitate to e-mail us if you have any questions regarding your care, or call us at Carroll Periodontics Office Phone Number 410-857-5700. Our fax number is 410-876-0261.

The Staff of Carroll Periodontics in Westminster


A periodontist is a dentist who specializes in the prevention, diagnosis, and treatment of periodontal (gum) disease and in the placement and maintenance of dental implants. Periodontists are experts in the treatment of all forms of periodontal disease, including gingivitis, periodontitis, and gingival recession.


Endodontics is the field of dentistry that treats injuries inside of the tooth resulting in the death of the nerves and blood vessels inside of the tooth. 

The American Dental Association recognizes periodontics and endodontics as two of the nine specialties of dentistry. Periodontists & Endodontists receive extensive training, including three years of additional education beyond dental school.

By choosing a specialist, you will benefit from the latest procedures for treating periodontal disease and placing dental implants tailored to your needs. In addition, Dr. Kleinman can perform cosmetic periodontal procedures to help you achieve the smile you desire. Dr. O’Sullivan treats the more difficult cases requiring endodontic therapy with the most advanced technology including a microscope to see far inside the root canal system of the tooth and to reach the posterior teeth, which are difficult to access.

Looking for additional information before scheduling your consultation with Drs. Kleinman or O’Sullivan?

Call Carroll Periodontics, Endodontics, and Implant Dentistry at Carroll Periodontics Office Phone Number 410-857-5700 with questions or to schedule your Appointment!