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David R Delong, DDS

4.9 (55 reviews)
Open 8:00 am - 5:00 pm
Updated 3 months ago

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1 year ago

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4 years ago

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10 years ago

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4 years ago

Been coming here for a decade; really nice group of people and im happy for them to have my business.

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5 years ago

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8 years ago

Love my dentist. He is a painless dentist. Nice staff look no further for a great dental team.

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9 years ago

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8 years ago

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8 years ago

Great dentist, very honest and takes care of you. Staff is very friendly, fees are decent so.

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17 years ago

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Page 1 of 2

Ask the Community - David R Delong, DDS

Review Highlights - David R Delong, DDS

His staff members are wonderfully kind and top professionals, and I have to give a shout out to Meg and Arlene!

Mentioned in 10 reviews

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Silicon Valley Endodontics and Microsurgery - New equipment

Silicon Valley Endodontics and Microsurgery

4.8(167 reviews)
4.6 mi

Dr. Jason Kung and his team: Tran, Samantha, Ramona and Wai did an AWESOME JOB! Their patience,…read morekindness& supportive professionalism was the best. I'm a huge fan and DEFINITELY RECOMMEND this place for Root Canals, Enndodontics and Microsurgery. They are receptive to anxious patients, like myself. Their follow up the next day check in was thoughtful. I HIGHLY RECOMMEND THIS PLACE! Thank all of you!

Referral from another doctor for cracked tooth. They have a 3d xray machine which spins around 360…read moredegrees. The first girl running the machine had no idea what she was doing. Didn't get the placement of the body right and faulty instructions on posture. Blamed it on the shoulders being too big. As the imaging head rotates it hit my shoulders. Didn't explain the correct placement and the killer was she forgot the lead body shield. I was too stupid to notice. Nice dose of ionizing radiation. The second time got the body position correct arms grabbing the handles. Third time a new person got the position still not right, only got half the tooth. They blamed it on the machine. Operator error. They resorted to a regular xray machine. They gave a discount after I complained they were charging for a 3d xray which they never used. Doc said some of the data was useful so partial charge. 4 xray doses, one unprotected. For a cracked tooth they cant treat. Not a good feeling of competence. They should practice on some boxes first instead of live patients.

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Silicon Valley Endodontics and Microsurgery - New facility

New facility

Silicon Valley Endodontics and Microsurgery
Silicon Valley Endodontics and Microsurgery

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Sunnyvale Dental Aesthetics - Sunnyvale Dental Aesthetics Team ready to provide world-class services.

Sunnyvale Dental Aesthetics

4.8(338 reviews)
2.4 mi
Luxury
Certified professionals

I want to sincerely thank Dr. David Meng for his exceptional care. He personally answered his…read moreafter-hours phone, took the time to listen to my situation, called in a prescription for antibiotics right away, and arranged for me to have a root canal appointment the very next day. His compassion, responsiveness, and commitment to his patients gave me tremendous peace of mind during a very painful dental emergency. It's rare to find a dentist who goes above and beyond like Dr. Meng. I truly appreciate the outstanding care and highly recommend him to anyone looking for a dentist who genuinely cares about their patients.

Recommend all the way! Dr. Meng and his team are awesome, they are super friendly and make you feel…read moreat ease, right at home I'd say! Haha. I'm so happy to have found a dental group in my area since moving here last year. Front desk - all very nice and they make you feel welcome right away. Office is modern and styled quite nicely too. They also have great playlists of music! Lani did my teeth cleaning and she made it as enjoyable as a cleaning goes- thanks Lani!! Dr. Meng is a a magician with teeth because I had some major issues needing to be fixed. ( I had my front teeth ruined by this dentist overseas- plus a gap - and a crown- so basically I had ton of obstacles in the way ) He found a solution for me AND FINALLY MY SMILE IS WHAT IT USED TO BE. Thank you thank you!

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Sunnyvale Dental Aesthetics - The finest amenities and customer service at Sunnyvale Dental Aesthetics.

The finest amenities and customer service at Sunnyvale Dental Aesthetics.

Sunnyvale Dental Aesthetics - 欢迎! 我们会好好照顾你的!                         Welcome! We will take great care of you!

欢迎! 我们会好好照顾你的! Welcome! We will take great care of you!

Sunnyvale Dental Aesthetics

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Judy Chen, DDS - DR. JUDY CHEN, Harvard Endodontics

Judy Chen, DDS

4.8(158 reviews)
6.7 mi

I had an old crown that fell off while on vacationing back in December 2025. I contact my general…read moredentist hoping it will be a quick fix and replace a new crown. He did some work on the tooth and after couple weeks the tooth started to hurt. I had a root canal in other tooth over 10 years ago so the feeling of sharp pain was very familiar. I called my dentist office to let them know I need a root canal and will be seeing a specialist. My dentist has my permanent crown waiting for me and I thought I could hold off on seeing a specialist, but the root canal pain was unbearable. So I went to see another dentist, Dr. Nguyễn on a Saturday. After xray and assessment, she prescribed me some antibiotics and pain medication. She then referred me to Dr. Chen. I've seen other Endodontist in the past for my other root canal and the experience with Dr. Chen by far was the best experience and I am extremely grateful for her. Dr. Chen was extremely pleasant, explained the entire process in detail, explained during the procedure, and explained to me what to expect after my procedure. She did not only successfully took our four nerve in that one tooth, but also reshaped my top crown, so when my new bottom crown is on, it will not ruin my dental crown. She even suggested, once my crown is placed by my dentist, please come back to her to make sure my bite and crown fit perfectly so it doesn't create problems for me in the future at no cost to me! I do have aggressive grinding and biting so she wanted to make sure I can keep the longevity of my crowns, since we all know this stuff is costly. She genuinely put her patient first, she even waived some charges for me! The office called me the next day to ask how I was doing. The staff and Dr. Chen are so kind and professional. Now, I am sad I won't get to see her again until my next root canal (hope that doesn't happen). If it does, I know where to go. If you want an exceptional, knowledgeable Endodontist who also put your needs ahead of your wallet, I highly recommend Dr. Chen.

01/02/2026 I was referred to Dr. Judy Chen by my dentist. I initially came in because I was…read morecomplaining about some tooth pain. The moment you walk in you are greeted by the 3 gals at the front desk. The ambiance from the front desk, patient room and even restroom was so calming. I told my husband that I felt like I went to the spa! The place was nicely lit, super clean, smelled really nice and not overpowering. My experience with the care quality that Dr. Chen and her team carried from check in, explaining what they will be doing to diagnose, plan of care, costs, payments etc was probably the most relaxing experience I've ever had. Even their voices were putting me into a trance lol I have my procedure scheduled until after I deliver my baby. I appreciate that Dr. Chen did not rush this procedure but rather chose to wait for the best interest of my health and pregnancy. That's when I knew I was in good hands. Will be back to review after my procedure.

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Judy Chen, DDS
Judy Chen, DDS
Judy Chen, DDS - Dr. Chen is such a sweet dentist, she made me laugh all the time & even gave me a thoughtful treat after today's appt. IHer!

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Dr. Chen is such a sweet dentist, she made me laugh all the time & even gave me a thoughtful treat after today's appt. IHer!

Sunnyvale Endodontics - Dr. Hoang and Dr. Monzavi specialize in root canal treatments and take pride in serving their community.

Sunnyvale Endodontics

4.8(42 reviews)
4.1 mi

Steve represented this office very well by being professional, thorough, friendly and responsive…read more He answered all my questions timely and to the best of his knowledge. When I arrived at the office, everyone was very welcoming, I felt like I was so important and they made me feel at ease. Dr Hoang was very knowledgeable, and she explained her findings til I fully understood. Her assistant was also very nice. The front desk was friendly and polite when her and Steve welcomed me at the lobby. Social distancing and sanitation was well maintained in the office. I can say this is one of my favorite doctor's visit ever. Thank you!

I was referred to this office by my dentist to treat a severe infection and I'm so glad I was. Dr…read more Monzavi is knowledgable, kind, and efficient. He took the time to explain the process and make sure my questions were fully answered. All of the staff are incredibly kind and helpful as well, they checked up on me to make sure I received the prescription for my pain medications. I was extremely nervous coming in because it's my first ever root canal treatment but Dr. Monzavi is great and I felt comfortable during the treatment. He checks on you throughout the treatment to make sure you are OK and that the procedure is painless, then after the treatment thoroughly reviews with you what has been done and what the next steps are. I had 2 appointments so far (due to the severity of the infection) and each of them took less than an hour which is way quicker than what I expected. They scheduled me another follow-up appointment to check on the healing progress. You can tell the people here care about their patients. Overall I would highly recommend this office to my family and friends and anyone else looking to get a root canal done. :)

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Sunnyvale Endodontics - Dr. Babak Monzavi received his certificate of Endodontics at UCSF in 2014 and Doctor of Dental Surgery from University of Texas San Antonio.

Dr. Babak Monzavi received his certificate of Endodontics at UCSF in 2014 and Doctor of Dental Surgery from University of Texas San Antonio.

Sunnyvale Endodontics - Dr. Hoang graduated magna cum laude at Boston University Goldman School of Dental Medicine and completed her Endodontics training in 2000.

Dr. Hoang graduated magna cum laude at Boston University Goldman School of Dental Medicine and completed her Endodontics training in 2000.

Sunnyvale Endodontics - Waiting area

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Waiting area

David R Delong, DDS - cosmeticdentists - Updated July 2026

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