Meet Our Doctors

Khanh T. Nguyen, DMD

Dr. Khanh Nguyen attended Temple Dental School in Philadelphia, PA where he earned his DMD degree. He earned his bachelor degree in biological sciences at the University of California in Irvine. He had a successful practice for five years before moving to Las Vegas in 2004. Dr. Khanh takes time to understand each patients' needs. He strongly believes that the best patient is an informed patient. Dr. Khanh will explain all treatment options thoroughly with you and help you make the decision that is best for you. He has a reputation of being gentle and understanding. Dr. Khanh remains at the forefront of dentistry by continually pursuing advanced education and training.

Dr. Polena

Dr. Kostika Polena has been practicing dentistry in Nevada since 2016, bringing over nine years of clinical experience to the care of his patients. He is known for his compassionate approach and his ability to explain treatment options clearly, helping patients feel confident and at ease. While he has extensive experience in restorative and general dentistry, Dr. Polena has also developed a strong focus on implant procedures, including All-on-X cases.

Outside the operatory, Dr. Polena is a devoted family man who enjoys spending time with his wife, Lexie, and their daughter, Ira. He’s a proud golden retriever owner and a loyal Miami Heat fan. Whether he’s restoring a smile or relaxing at home with loved ones, Dr. Polena brings care and energy to everything he does.

Dr. Chanon Ruangjumrusvet

Dr. Chanon has been a licensed dentist in Nevada since 2016 and has been a trusted provider at Wonderful Smiles Dental for over a year. A proud graduate of the UNLV School of Dental Medicine, Dr. Chanon brings nearly a decade of experience in general dentistry with a focus on conservative, comprehensive care. His patients appreciate his calm demeanor, steady hands, and clear explanations that help them feel confident in their treatment choices.

Dr. Chanon is skilled in all aspects of general dentistry, including preventive care, cosmetic restorations, crown and bridge work, extractions, and root canal therapy. He is always staying current with continuing education to improve his techniques and offer the best care possible. He takes pride in creating a welcoming environment for patients of all ages and backgrounds, tailoring each treatment plan with care and precision.

Beyond the dental chair, Dr. Chanon leads an active and curious life. He enjoys playing both indoor and sand volleyball, visiting local buffets (especially for sushi, crab legs, and Thai food—as long as it’s not spicy), and traveling to different cities for CE courses. On his days off, you might find him exploring the Las Vegas Strip, like a tourist, solving escape rooms or singing karaoke with friends.

Friendly, skilled, and always learning, Dr. Chanon brings a vibrant energy to Wonderful Smiles Dental and is committed to helping every patient smile with confidence.