General Dentistry for Your Smile

Wynnewood, PA

Emergency Dental Services 

29+ Years of Experience 

Named Best of Philly for 7 Straight Years

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Dr. Thomas DeFinnis, DMD
Philadelphia Magazine's Top Dentists 2025

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Comprehensive Dental Care for Your Entire Family

At Wynnewood Dental Arts, we are dedicated to providing exceptional dental care to patients throughout Greater Philadelphia. With over 29 years of private practice experience, our team offers a wide range of services, from routine check-ups to advanced treatments and Invisalign. We understand that dental visits can be stressful, which is why we specialize in sedation dentistry, ensuring a comfortable experience for every patient. Our practice has been recognized as a 'Best of Philly' winner for seven consecutive years and featured as a 'Top Dentist' in Main Line Today Magazine.


Maintaining excellent oral health starts with daily habits like brushing twice a day, flossing, and limiting sugary snacks—but regular dental exams and professional cleanings are essential. During exams, Dr. Thomas DeFinnis checks for cavities, gum disease, bite problems, oral cancer, and other issues, while professional cleanings remove plaque and tartar to prevent decay and gum disease. Preventive care not only protects your smile but also supports overall health. With our membership plans and acceptance of major insurance providers, Wynnewood Dental Arts makes quality, personalized dental care accessible for the whole family. Contact us today to schedule your appointment.

Wynnewood Dental Arts

Why Choose Us

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Emergency Dental Services

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29+ Years of Experience

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Named Best of Philly for 7 Straight Years

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In-Office Membership Plans

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Anxiety Consultation

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Sedation-Focused

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Cosmetic Dentistry

Transform your smile with our cosmetic dentistry options. From professional teeth whitening to veneers and smile makeovers, we can help you achieve the confident, radiant smile you've always wanted. Our cosmetic procedures are tailored to your unique needs and desires, ensuring natural-looking results that enhance your overall appearance.
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Digital Scanner & iTero

We've invested in cutting-edge technology to improve your dental experience. Our iTero digital intraoral scanner allows for precise, comfortable impressions without the need for messy traditional molds. This advanced technology enables us to create accurate digital models for treatments like Invisalign, crowns, and bridges, ensuring a perfect fit and optimal results.
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Family Dentistry

As a family-oriented practice, we cater to patients of all ages, from children to seniors. Our team is experienced in pediatric dentistry, providing gentle care that helps kids develop positive associations with dental visits. We also offer specialized services for adults and seniors, including dentures, implants, and periodontal care. Our goal is to be your family's dental home, providing consistent, comprehensive care throughout every stage of life.

5-Star Review

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Just had my zoom whitening session with Kathy. My teeth look amazing! Thank you!

Rachel Mc C

The best dentist have the best office staff. Went 15 years with out a cavity. Never a long wait either. Keep up the good work

Adrian W

Great doctors, and staff!! Thank you so much for all that you do!!

Monica R

Best Dentist in Philly hands down!

Josh R

The staff is always very friendly and appointments start on time. The hygienist is gentle and my appointments are not lengthy.

Craig H

I always feel welcomed when i come to my appointments. I recommend all my family and friends. My dentist is awesome!!!! Thanks for giving A1 service.

Tameika P

Great place. Staff are all friendly and do their best to make you feel comfortable and relaxed. Dr. Definnes did a filling, a root canal, and a crown for me, and I am very happy with his work.

Ian S

Everyone in this office was very patient and helpful. I am an anxious dental patient and they put me at ease.

Amy F

Consistent high quality and professional service!

Joerg T

I have been a patient of Dr. Definnes for several years. I even have family members going here that did not like going to the dentist due to bad experiences with them. Dr. Definnes and his staff are professional. Dr. Definnes is gentle and genuinely care about your teeth and overall health of your mouth. My appointments have been true to the time I have been given. When I had to get root canal work done a couple years ago , it was no where near the nightmare stories I had heard from other people. The dental hygienists at this office are also great. I highly recommend this office.

Darlene E

Dr. Defining and his wonderful,staff are always very kind and do wonderful work on my teeth. I haven't had any cavities for five years now. I love the way Jamie cleans my teeth and love Dr. DiFinnis's hand shakes, knowledge, and kindness and smile. Thank you for making my visits happy and successful and helping me keep my teeth squeaky clean! See you in 2018!

Mimi M

I look forward to go to the dentist since being a patient at Wynnewood Dental Arts.

Sicily Hill P