Our Team

Mountain Shadows Dental

Our team is friendly, professional, and welcoming. We all look forward to seeing you in our Firestone dental office and providing you with the exceptional dental care you deserve. If you would like to learn more about us personally or professionally, please read our biographies. We look forward to learning more about you and your family.

Meet Our Team

Tony Lere, DDS

 Tony LereDDS

Tony Lere grew up in Greeley, Colorado, and completed a degree in Biology from the University of Colorado, Boulder, where he made the Dean's list. He went on to attend The University of Colorado's School of Dental Medicine to earn his Doctorate of Dental Surgery. Upon graduation, he completed a post-doctoral residency program for general dentists at the Veteran's Administration Hospital in San Antonio, TX. While there, he was trained in dental implant placement and restoration, IV and oral sedation, and complex restorative techniques such as smile makeovers and full mouth reconstructions. Dr. Lere practiced in San Antonio and Austin for two years prior to moving back to Colorado. During that time, he has pursued many hours of continuing education to stay current on the latest techniques and treatments.

Dr. Lere's approach to dentistry is one of education and trust. He feels it is vital to explain treatment prior to providing it. Dr. Lere makes a point of explaining all the findings as well as providing you with a number of options. He will listen to you and try to make your experience as comfortable as possible. If there is anything he can do to make your visit more comfortable, please let him know.

Dr. Lere is able to provide you with numerous sedation options for your appointments. His primary goal is to inform his patients of issues as soon as they are detectable so the treatment is usually less time-consuming and less costly.

Dr. Lere enjoys his profession because he is able make a lasting difference in someone’s comfort, self-confidence, and their picture-perfect smile! He is a member of the American Dental Association, the Colorado Dental Association, and the Metropolitan Denver Dental Society. He has donated time to 9News Health Fairs.

Outside of the office, Dr. Lere enjoys live music, hiking and road biking, cross training, and spending time with his wife, Kristin.

Celeste Yeik - Dental Hygienist, RDH

 Celeste Yeik - Dental HygienistRDH

Originally from Cheyenne, WY, Celeste attended Laramie County Community College, where she earned her associate’s degree in Applied Science. She received her degree in dental hygiene in 2006.

Celeste is new to our dental practice and enjoys getting to know new patients and their families. She wants to make dental care easier for our patients and offers tips and tricks to help them achieve their highest level of health. She enjoys seeing patients’ smiles transform and helping them achieve their health and appearance goals.

In addition to receiving the prestigious award for best wife and mom, she is also an expert in Disney, Disney Princesses, and everything that interests her five year old. She, her husband, and her two young daughters enjoy outdoor activities and watching the Denver Broncos win!

Ruth Mangus- Office Coordinator

 Ruth Mangus- Office Coordinator

Our Office coordinator, Ruth Mangus, is a Colorado native who earned her associate degree from Front Range Community College. She began her dental career by attending Pima Medical Institue, where she earned her expanded duty assisting certification. Ruth has over twenty years of experience in the dental field, both in front and back office patient care

Ruth enjoys getting to know our patients and helping them understand their insurance benefits. She finds satisfaction in helping patients acheive their dental health goals, by assisting them with their financial questions. Ruth takes pride in exceeding each patients expecations of her.

When Ruth is away from the office, you can usually find her on one of Colorado's hiking trails. She loves tackling the highest peaks with her husband and two furry, four-legged children. Ruth's hobbies are wildlife photography and stained glass art.