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Three Generations of Dental Excellence

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Our Specialists

Profile of Endodontist Dr. Hossein Edalat in Upland and Chino

Dr. Hossein Edalat

Endodontist

Dr. Edalat obtained his Doctor of Dental Surgery (DDS) degree from University of Southern California (USC) in 2008. Dr. Edalat is a Board-eligible member of the American Board of Endodontists, and maintains active membership in numerous professional associations.

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Profile of Endodontist Dr. D. Craig Chen in Upland and Chino

Dr. D. Craig Chen

Endodontist

Dr. D. Craig Chen attended UC Irvine for his undergraduate studies. He graduated from the USC School of Dentistry and also completed his endodontic residency there. For the last ten years, he has been a part-time faculty member at the USC School of Dentistry.

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Profile of Oral Surgeon Dr. John Costandi in Upland and Chino

Dr. John Costandi

Oral Surgeon

Dr. John Costandi is a Board Certified Oral and Maxillofacial Surgeon. He graduated from Boston University School of Dental Medicine, where he was nominated and inducted into the BU Chapter of OKU Honor Society. He then completed his Oral and Maxillofacial Surgery training at Columbia University/New York Presbyterian Hospital in NYC.

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Profile of Oral Surgeon Dr. James Habashy in Upland and Chino

Dr. James Habashy

Oral Surgeon

Dr. James Habashy DMD, MD attended USC for over 8 years where he obtained his BS in Gerontology, as well as his DDS degree. Dr. Habashy has built an impressive number of certifications and awards, including being the 2013 resident of the year in the division of Oral and Maxillofacial Surgery.

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Profile of Orthodontist Dr. Andrew Lee in Upland and Chino

Dr. Andrew Lee

Orthodontist

After getting braces as an adult and experiencing firsthand how a new smile can have a profound positive effect, he decided to change careers from engineering to dentistry. He went to dental school at UCSF, followed by orthodontics residency at Columbia University.

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Profile of Anaesthesiologist Dr. Andrew Elmasri in Upland and Chino

Dr. Andrew Elmasri 

Anaesthesiologist

Dr. Elmasri is proud to be providing dental anesthesia to the Southern California area. He was born and raised in this area and it will always be his home. His love for the health profession attracted him to dentistry where he attended and graduated from Loma Linda University with honors in Implantology and Anesthesia.

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Profile of Anaesthesiologist Dr. Andrew Elmasri in Upland and Chino

Dr. Jonathan Akhavan

Periodontist

Dr. Jonathan Akhavan, DMD, is a renowned periodontist and implant specialist who joined the Barsoum Dental team in 2024. A Southern California native, Dr. Akhavan pursued his dental education at A.T. Still University, where he earned his Doctor of Dental Medicine (DMD) degree. He then completed his residency in periodontics at New York University (NYU), where he further honed his expertise.

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Photo of Barsoum Dental specialist team

What Our Guests Are Saying...

"I am a regular patient but had to come in same day as an emergency when I developed severe pain. They were able to fit me into the schedule with no issue. I was treated amazingly well by all of the staff. I was very nervous when they told me I would need the first phase of a root canal, but they reassured me and the procedure was pain-free. The doctor and his staff are very attentive and are concerned with making sure you are comfortable at all times. Couldn't recommend them more, they are all great from Vicky up front to the MD and all of his staff."

Shannon W.

I don't normally make reviews, but I feel compelled after having such a great experience. I suffer from dental phobia/anxiety. I mean it is so severe that I have to take valume before my visits. well, I use to... My root canal went so smoothly that I was able to sit through my next appointment on my own. I don't think words can explain how good the Dr. and his staff are at making you comfortable and at ease. This is definitely the place for someone who has had bad experiences in the past.

Leanna R.

I had been with another dental office, but saw Dr. Barsoum's office for a specialty (Endo). My first interaction was with Dr. Barsoum; let me tell you.. this man is very kind, caring, and so professional! I really like how he goes over and beyond for the patient experience. Dr. Edalat is also a class act. He is so gentle with his hands. He performed a root canal on me.. I promise you, I felt nothing, and I even went to work that same night for 12 hours with no pain meds or issues. I also liked how Dr. Barsoum PERSONALLY calls you, the patient, the evening of your visit to see how every thing went, to see if you have any concerns or are in pain. That says a lot! Most doctors don't care what happens to you after you leave their office, but Dr. Barsoum does, and I highly respect him for that. I recommend Dr. Barsoum and Dr. Edalat for all of your dental needs. These doctors are amazing!

Alpha G.

"The staff are wonderful and friendly. Dr. Barsoum is the most caring Dentist I have ever met. I went in for two fillings and a root canal. I was expecting it to be very painful, but to my surprise it was not. Dr. Barsoum took really good care of me when I was there, and he even makes "checkup" call to make sure I'm doing fine. Overall, my experience there was just WONDERFUL!"

Nancy L.

I had to have a root canal re-done that another dentist did incorrectly. Dr. Edalat made sure I was comfortable at all times. He was done before I knew it and didn't feel any pain at all. The entire staff are wonderful.

Joann B.

Book Your Appointment Today

At Barsoum Dental, we proudly treat guests from all walks of life. We work with most PPO insurance plans for our services and happily accept cash, checks and credit cards from guests without dental insurance. Are you dealing with gum disease? Contact us today to learn more about what we can do to help you save your natural teeth.

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