Welcome to WinningSmiles Custom Dentistry & Implant Center

At Winning Smiles, we are proud to offer the highest quality dentistry, skilled providers, and an attentive team. Your entire family is welcome here, and we make it easy to get all the care you need in a familiar setting from dentists you know and trust.

We look forward to getting to know you and your family and helping you have healthy and beautiful smiles.

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Let Your Smile Shine

A healthy and attractive smile can impact nearly every area of your life. It makes everything easier, from small moments like enjoying a favorite meal to the bigger moments, like meeting new people.

At WinningSmiles in Fontana, CA, our dentists have the expertise and the experience to help you enjoy your healthy smile for years to come and treat any issues that might come up. From preventive cleanings to complex procedures like dental implants, we’ve got you covered!

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Patient Testimonials
  • "Winningsmiles is the absolute best in Dentistry, not only are their skills exceptional, but they make their patients comfortable and at ease. I wish people were all this way, I recommend this dental office to everyone, you couldn't find a better place." - Melissa
  • "I always receive excellent care at Winning Smiles. They work you in if you have a concern and are so prompt in taking care of it. I am always very satisfied with the service and care I receive.” Myrel
  • "Excellent service as always. Never had a bad experience and appreciate the hospitality. Thanks" - Daniel

Our Team

WinningSmiles Custom Dentistry and Implant Center

The team at WinningSmiles is proud to serve the families of Fontana, CA! 

We are a group of kind and compassionate people who love what we do. Every appointment is an opportunity to get to know you better and help you take steps toward a healthier and more attractive smile. 

We invite you to take a few moments to get to know us a little bit better, and we look forward to seeing you in our practice and learning how we can best meet your needs. 

Meet Our Team

Mostafa Koperly, DDS BDS

 Mostafa KoperlyDDS BDS

Dr. Mo Koperly is the newest member of the WinningSmiles team in Fontana. He graduated from the University of Baghdad with a Bachelor of Dental Surgery in 2007 and practiced general and cosmetic dentistry overseas for several years before immigrating to the United States. He then graduated from the University of Colorado School of Dentistry in 2014 with awards for excellence. His professional affiliations include the ADA, AACD, AGD, AAID, CDA, and MDDS.


Frank Finazzo, DDS

 Frank FinazzoDDS

Dr. Frank A. Finazzo grew up in Fontana, graduating from Fontana High School in 1982. In 1986, he completed his undergraduate degree in biology at the University of California, Riverside, where he graduated with honors. In 1990, he graduated from the U.C.L.A. School of Dentistry and is very proud to be a U.C.L.A. Bruin.

Dr. Finazzo completed his general practice residency at the Jerry L. Pettis Memorial Veteran’s Hospital in Loma Linda, California in 1991. This program was geared toward honing his skills as a general dentist.

Dr. Finazzo wishes to serve you in the most caring, conscientious way possible. You can expect him to be fun yet straightforward, kind, compassionate and gentle. He and his team are committed to providing you and your loved ones with excellent dentistry. He is very proud of the quality of dentistry provided and the real value of dental care offered to our community.

Dr. Finazzo and the entire team are excited about our state-of-the-art dental office. We know you’ll love it, too!

Janice Klim-Lemann, DDS

 Janice Klim-LemannDDS

Dr. Janice Klim-Lemann received her undergraduate Bachelor of Science degree in medical illustrating at La Sierra Campus of Loma University and then attended Loma Linda University School of Dentistry, graduating in 1984. She graduated with many honors and awards.

In addition to practicing general dentistry, she has been a forensic dentist for ten years and assisted at the World Trade Center on 9-11-01 helping identify the victims. Dr. Klim-Lemann had her own practice for 17 years in the city of San Bernardino, CA and then took a three-year sabbatical.

Her hobbies include oil painting, animal training, skiing, and scuba diving. Dr. Klim-Lemann is a very gentle and caring dentist who believes in giving quality dental care in an efficient manner.

Paul Anderson, DDS, MD - Oral Surgeon

 Paul AndersonDDS, MD

Dr. Paul Anderson is our oral surgeon. He specializes in removing teeth, placing dental implants, and treating diseases of the jaw.

Dr. Anderson graduated from the University of Utah with a degree in biological sciences. He received his doctor of dental surgery degree from UCLA and his medical degree from the University of Texas Medical School. He is extremely knowledgeable and skilled in the field of oral and maxillofacial surgery. Dr. Anderson has received several awards in conjunction with his specialized training.

Dr. Anderson offers the following comments for your dental well being:

Patients will receive superior dental specialty services in one location. It is important for us to have patients feel positive about their dental health and smile.


Michael Khalil, DDS - Endodontist

 Michael KhalilDDS

Dr. Khalil, a native of Southern California, specializes in endodontics (root canal therapy). He graduated from the University of Southern California with a specialty degree in 1998.

Dr. Khalil visits our practice at least once a month. He is very knowledgeable and skilled in the field of endodontics. All of our patients are extremely pleased as he performs his dental skills in the most efficient and timely manner.

Dr. Khalil suggests people should follow a daily routine for a healthy lifestyle:

  1. Floss daily
  2. Eat healthy, balanced meals
  3. Exercise daily
  4. Schedule at least two dental check-ups and professional cleanings every year
  5. Brush at least two times a day with a fluoride toothpaste

Robin Jensen, RDH - Registered Dental Hygienist

 Robin JensenRDH

Robin is one of our skilled dental hygienists. She graduated from Ohio State University in 1977 with both a BS in dental hygiene and a BA in speech communication. Graduating first in her class in clinical, she has combined her clinical talents with communication to provide outstanding care to WinningSmiles patients for the past 18 years.

Robin’s favorite part of her job is meeting new people and helping her patients on a personal level. By getting to know them, she helps them gain and keep a healthy mouth and provide the comfortable treatment that every patient deserves.

When she’s not improving smiles, Robin is probably outside! She loves sports, hiking camping, and biking. She might also be found enjoying a good book. 

Barbara Corral-Wyckoff, RDH - Registered Dental Hygienist

 Barbara Corral-WyckoffRDH

Barbara is a member of our skilled dental hygiene team. She began her dental career as a receptionist after graduating high school. Upon receiving her Associate in Science in dental assisting from Chaffey College, she became certified to practice as an orthodontic assistant.

Nearly ten years later, Barbara returned to school, graduating from Cerritos College and UCLA with as associate’s degree in dental hygiene. She then went on to earn her Bachelors of Science in vocational education from Cal State Long Beach. She began practicing as a clinical instructor at Loma Linda University in the periodontal and dental hygiene departments.

Barbara brought her years of experience and her expertise to WinningSmiles dentistry in 1999 and has been a valuable member of our practice ever since!

To remain in a field for as long as Barbara has, you have to truly love what you do. People are the main focus of Barbara’s joy in her work, and she enjoys providing gentle, thorough, and high quality cleanings as well as using her skills in education to teach patients how to keep and maintain healthy gums and teeth.

Barbara was born and raised in Fontana, and when she’s not helping to improve a smile, she might be found hiking, golfing, playing softball or tennis, dancing, or enjoying crafts and taking photos.

Jaqueline Cazares, DA - Treatment Coordinator

 Jaqueline CazaresDA

Our treatment coordinator, Jacqueline, graduated from Chaffey College as a dental assistant and has been a part of our WinningSmiles team for 13 years.

Jacqueline loves working with our patients to help them achieve their dental goals and change their lives.

A Fontana native, Jacqueline grew up in the area and graduated from A.B. Miller High. She’s been married for 15 years and is the proud mother of two little boys. When she’s not at the office, she is probably spending time with her family, going for walks, or working out. 

Kristi Leach-Espericueta, DA - Dental Assistant

 Kristi Leach-EspericuetaDA

Our treatment coordinator, Kristi, has been a part of the WinningSmiles team for 10 years. She is a graduate of the dental assisting program at 4-D College in Colton, CA.

Kristi loves that her job lets her help others and seeing the transformation in our patients’ smiles!

When Kristi isn’t at the office assisting our patients, she can probably be found spending time with her family.

Elisa Zaragoza, RDA - Registered Dental Assistant

 Elisa ZaragozaRDA

Dental assistant Elisa hails from San Bernadino and received her training at Concord Career College. After finishing her program, she began working at WinningSmiles and has now been a member of our team for more than 11 years!

Elisa loves that her job allows her to help people look and feel great, especially since she knows how important confidence is to living your best life!

Elisa is married with two beautiful boys, and in her spare time, she enjoys quilting.

Ana Lopez, RDA - Registered Dental Assistant

 Ana LopezRDA

Our registered dental assistant Ana is a graduate of Baldy View ROP. She holds certificates in coronal polishing, pit and fissure sealant, x-rays, and infection control. Ana has been with WinningSmiles for nearly two years.

Ana enjoys her job so much that it doesn’t actually feel like work! She loves meting new people and being around them. She also appreciates what a great team we have at our Fontana, CA dental practice!

Ana is married and has two kids. She describes herself as “family oriented” and loves spending her spare time with her family. She also enjoys working out, swimming, and tanning, as well as reading books that are based on true stories.

Steven Carreon, DA - Dental Assistant

 Steven CarreonDA

Steven, one of our friendly dental assistants, is a graduate of Everest College and has been with WinningSmiles for over a year.

Steven loves to learn new things and appreciates the fact that his job allows him to do exactly that! He also enjoys the opportunity to help our patients smile again and helping to make their experiences with our practice comfortable.

Fontana is Steven’s hometown. He spends his spare time taking on a number of physical challenges, including bike riding, working out, and hiking. He also enjoys trying new and different foods.

Stacey Armendariz, RDA - Registered Dental Assistant

 Stacey ArmendarizRDA

Stacey, one of our registered dental assistants, is a newer member of the WinningSmiles team. She is a graduate of American Academy.

Stacey loves that her job allows her the opportunity to meet new people and be part of a wonderful team that puts smiles back on patients’ faces!

This Fontana native enjoys relaxing at home in her free time. She might be found barbecuing, listening to music, heading to beach, taking off for a long motorcycle ride, or just enjoying the company of family and friends. 

Alexis Russo, DA - Dental Assistant

 Alexis RussoDA

Dental assistant Alexis trained at Hesperia Alternative Education Center Regional Occupational Program. She holds certifications in dental assisting, x-ray, coronal polish, and CPR. Alexis has been with WinningSmiles for one year.

Alexis loves everything about her job from the amazing patients to her fun coworkers. A member of the Deaf community, Alexis is ready and able to take on the challenges of her job, and she appreciates the respectful nature of her interactions with both her coworkers and her patients. Every day at WinningSmiles is an opportunity to learn something new, and the team feels like family to her.  

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