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About Us

Welcome to By Word Of Mouth Dentistry. Our privately-owned dental practice, located in Corning, New York, is dedicated to creating beautiful, long-lasting smiles and maintaining healthy mouths for our patients in Corning, Painted Post, Elmira, and the surrounding communities.


We deliver the highest quality general and restorative dental care in an atmosphere of warmth, kindness, and respect. Our caring staff welcomes children, adults, and seniors and guarantees the comfort of every member of your family. Our goal is not just to correct any dental problems but to help you prevent dental problems in the future.

If you are looking for a highly trained and experienced dentist in the Southern Tier, you have come to the right place. Dr. Gretta Tomb, a Corning native, is a national award-winning dentist for excellence in her field. She calls on over 40 years of professional experience to ensure that your dental needs are met in a comfortable and patient-focused environment.

By Word Of Mouth Dentistry uses the latest state-of-the-art equipment and cutting-edge technology and upholds the strictest sterilization techniques for our patients. We know that some patients may feel anxious about their visit to the dentist; that is why our goal is to make your visit with us as pain and anxiety-free as possible. 

Meet the team.png

Our people set us apart. We’re passionate, dedicated, and friendly. Oh yeah, and we’re great at what we do!


Our Address
Opening Hours

257 East First Street

Corning, NY 14830

Tel: (607) 654-4333 

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Monday  8AM – 4PM

Tuesday 8AM- 1PM

Wednesday  8AM – 4PM

Thursday   9AM – 6PM

Friday Closed


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What our patients have to say

" Dr. Tomb is an artist!

She does amazing work."

"Emilee is the best Hygienist! She's very gentle and kind.  "

"The office is bright, comfortable, warm, and welcoming. Sue makes checking in a breeze"

"Dr. Tomb and her assistant Erica work great as a team!" 

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