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Meet The Doctors

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(804) 504-0012

Dr. Sadselia

Dr. Sadselia is a general dentist from Atlanta, Georgia. He completed his dental education in NYC from NYU College of Dentistry. He moved to Richmond shortly after and has been practicing in the Greater Richmond Area since.

Outside of dentistry, he loves going on hikes and trying all the local foods. He loves traveling with his partner and exploring new cultures! He is a big Georgia Bulldogs fan and loves cheering them on during football season!  

Dr. Dinora Quintero

Dr. Dinora is a dentist and orthodontist with over 16 years of experience in creating healthy, beautiful smiles in Venezuela, Colombia, and the United States. She earned her DDS from Virginia Commonwealth University and specialized in Orthodontics at Universidad El Bosque in Colombia.

Passionate about patient-centered care, Dr. Dinora loves helping people of all ages feel confident about their oral health. She speaks English and Spanish fluently and stays up to date with the latest dental technologies and techniques.

She has contributed to dental research and presented internationally, reflecting her commitment to lifelong learning and advancing the field. Beyond clinical practice, Dr. Quintero is dedicated to expanding access to quality dental care for diverse communities.

Outside the office, Dr. Dinora cherishes time with her two kids, Isabel and Adrian, her husband, her parents, and their family dog. She also finds joy in painting, crafting, knitting, and embroidery—creative hobbies that keep her inspired every day. 

Hear From Our Happy Patients

Our Patients Love the United Smiles Experience

At United Smiles, nothing means more to us than the trust and satisfaction of our patients. Read what our patients have to say about their experiences and discover why so many choose United Smiles for their dental care.
I love going to the dentist! You don’t hear that often from anyone, but I really do. The staff and Dr Nico are excellent at what they do. They take the time to explain what is going on and answer any questions. You barely know that they are preforming a procedure, except from the noise of the machine. I can honestly say I look forward to going to my dentist, I feel very comfortable with the wonderful team!!

Mary H.

I am very pleased with United Smiles. The environment is pleasing and appointment times are always convenient. I don’t have to wait when I get there. Dr. Richardson is the only dentist that I know. I have never had a reason to look for another one. I am still wearing the same bridge that he put in place many years ago. Great dentist and great work.

Rebecca C.

This office is the best! They are clean, gentle and very caring. I have anxiety really bad which required sedation dentistry in the past. But here I feel really comfortable with regular dental procedures. Dr P and his team are amazing. I highly recommend United Smiles.

Jocelyn H.

Our Location

Colonial Heights

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  • Monday-Thursday: 9:00am - 5:00pm
    Friday: 9:00am - 2:00pm