Giannone, David J DMD
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Dr. Giannone has been practicing dentistry since 1985. A graduate of Tufts School of Dental Medicine, he obtained his Bachelor's Degree in Biology at Bucknell University. Over the years, he continues to attend continuing education courses with particular focus on preventative, restorative, and interceptive orthodontic ideology in order to help serve his patients in practical ways.

In addition, and of particular importance in serving his patients with special periodontal needs, he is certified in the use of soft tissue lasers. This greatly reduces discomfort and healing time for surgical procedures and enhances non-surgical treatments. Dr. Giannone and his staff strive to create a caring and comfortable environment for your dental care needs.
Reviews (7)
Garin Toren
Garin Toren
Mar 29, 2021
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I'm a new patient and the experience was excellent. I managed to get an appointment the next day and had an extremely thorough exam by the dentist. The front desk staff were super efficient and friendly.
Corinne Collins
Corinne Collins
Jan 03, 2020
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David Giannone does not know what he is doing when it comes to routine fillings and he has caused me serious jaw pain for the past several months or so. I went in for fillings one day and came back a few weeks later to have some other teeth filled, I complained to him that the teeth he filled before were in serious pain all the time so he decided to give my teeth another cleaning and see what was wrong. He shaved down several other teeth that were not even filled by him and altered my bite. I have to close my jaw twice as hard as I did before in order to completely close and it hurts so much, my
Chris Capolino
Chris Capolino
Nov 25, 2019
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Dr G is very thorough and makes a nervous trip to the dentist a comfortable at home feeling. I highly recommend anyone to come here. He’s very gentle and truly cares for his patients. His staff also makes sure you’re comfortable and taken care of. Thank you so much Doctor G.
Jacqueline Alliegro
Jacqueline Alliegro
Jul 09, 2019
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Amazing dentist and person, cute and cozy office! I have complete confidence and trust in Dr G with mine and my families dental needs. Thank you Dr G for being you!
Ali Caymaz
Ali Caymaz
Jul 16, 2018
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The best dentist I have ever used. Extremely knowledgeable, nice, and great at his job.
You W.
You W.
Oct 10, 2017
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WOW what an amazing dentist... I was in extreme pain and I had to get a root canal in Riverhead, afterwards I came to him and he sat down with me and we talked face to face about dental options. The receptionists are amazing and very accomidating. Dr. Giannone told me all I needed was a filling to cap it off, performed it that day and was very gentle and even funny. Normally I hate the dentist but it was such a pleasant experience I want to make an appointment just to go back again.
Keith Considine
Keith Considine
May 21, 2017
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Clean office and bathroom!!! Dr. Giannone is very thorough and explains whats going on. Very nice ambiance in the office.