Meet Our Team - Dentist in Fontana, CA - Triangle Dental Group
Our goal is to be the best dentist in Fontana and the surrounding communities!  We want you to love coming to the dentist and we are committed to creating an exceptional patient experience in our dental office.  Dr. Nathaniel Leng is a Loma Linda graduate.  His favorite part of being a dentist is creating smile makeovers that give patients the confidence to smile again.  Dr. Leng prides himself on being a thorough and honest dentist.  Oral Surgeon Dr. Max Moncayo specializes in wisdom teeth extractions, single or multiple tooth removal, and coordinates his care with the general dentists and other specialists in our office.  Our Periodontist is Dr. Natasha Yashar.  She helps customize treatment plans which include sinus lifts, gum grafting, bone grafting and other treatments for periodontal disease. We also have a Endodontist – Dr. Roy Hayashi, expert in root canal treatment.  His goal is to help patients feel comfortable and at home during their treatment. Our Orthodontist is Dr. Garcia and she helps to straighten your teeth and give your smile confidence at any age!   Our philosophy is to treat patients like family, with gentle, friendly care.  Our entire team is committed to providing you with the best dental experience in The Fontana area!  

Cleaning, Exam & Digital X-Rays*


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Our knowledgeable benefit coordinators can help you maximize your dental benefits and minimize your out-of-pocket cost.

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Single-Visit Crowns

CEREC® crowns, inlays and onlays.
Ready in a single visit.