Proudly serving Plano, TX & surrounding areas

Lonestar Dental Group

5800 Coit Rd #800, Plano, TX 75023

  • Technology and future focused

  • Conservative approach to treatment

  • Customized treatment plans

  • A beautiful & healthy smile

So, What Makes Lonestar Dental Group So Great?

We’re glad you asked! Choosing a dentist is a really important decision!

  • Friendly Staff: Our team genuinely cares about our patients!

  • Education-Based Care: We help our patients understand their individual needs and work to choose the best treatment for them!

  • Relaxing: Our spa-like environment will put you at ease from the minute you walk in.

  • One-Stop Shop: From restorative care to cleanings, and everything in between! Get all of the dental care you need, right here in our office.

Our Patients Are Our Biggest Fans!

What Our Patients Say About Us

5.0
Overall Rating, Based on 760+ Reviews.

"I've been with Dr. Montgomery for years and he is the BEST in the business! Every single visit I am beyond impressed with the entire staff. They're friendly, thorough, knowledgeable, and treat you like family. Every single one of them go above and beyond in all areas. Thank you Donna & Marcie for making my recent visit such a good experience, and Nellie & Susanna for always checking in with me. Let's face it no one loves going to the dentist, but this Team makes me love it as much as I possibly can."


- Natalie T

"Hands down - the best teeth cleaning I have ever had! My hygienist was gentle and made sure I was comfortable the entire time. The office staff is super friendly and everyone knows your name. Dr. Sivie is the BEST! Can't recommend this place enough!"


- Jessica T

"I recommend this place to everyone I know! One of the main things I was scared of, going to a new dentist, was being shamed for the state of my teeth. I had a huge cavity that I was really worried about and all the staff there was so friendly and kind and did not make me feel bad about the state of my teeth at all! Everyone always greets me with warm smiles and hellos. Nicole and Jason (owners, dentists) are so amazing as well. Highly recommend!!"


- Keely l

Meet Our Dentists

Jason L. Montgomery, DDS

A native of Amarillo, Dr. Jason Montgomery earned his undergraduate degree from Texas A&M (Dean’s List, All Academic Team) and then graduated from Baylor’s College of Dentistry. During his undergraduate years as an Aggie, he was a defensive member of the football team that played in two Cotton Bowls in 1993 and 1994.

After graduation, Dr. Montgomery worked as an associate in the office of his mentor Dr. Tom McDougal in one of the largest cosmetic dentistry offices in Dallas. Today, he is committed to providing the latest services to his patients, and in the past five years, he has taken over 500 hours of continuing education, focusing primarily on implants and cosmetic dentistry. Dr. Montgomery was also recently selected by the Consumer’s Research Council of America as one of “America’s Top Dentists.” Additionally, he was elected by his peers to appear in the Texas Monthly Magazine issue featuring “Texas Superdentists.”

Dr. Montgomery is married to Nicole Sivie, DDS, and they are the proud parents of Reagan and Davis. A country music fan, he enjoys hunting, fishing, golfing, and anything else occurring outdoors. Sunny, their Yellow Lab, accompanies the family whenever possible.

Committed to service in his community, Dr. Montgomery participates in Texas Dentists for Healthy Smiles, supports the Plano Senior High Booster Club, Texas Mission of Mercy Free Dental Clinic, and the Plano Education Foundation.

Family-oriented and service-centered, Dr. Jason Montgomery’s mission is to provide quality dental care for patients, as well as the best in modern dentistry with a small town Texas feel, for his hometown of Plano.

Nicole Sivie, DDS, FAGD

Dr. Nicole Sivie, the second of three children grew up in Richardson, Texas. After graduating from Berkner High School, Dr. Sivie studied chemistry at the University of Texas at Austin. Realizing that dentistry was her career of choice, Dr. Sivie was one of four students accepted to Baylor College of Dentistry after two and a half years of studies. With her interests in cosmetic dentistry, Dr. Sivie was the only senior dental student taking additional continuing education classes, with practicing dentists, offered on weekends for Advanced Restorative Esthetics. She joined Dr. Williams after graduation in 1998, the two partnered in 2002 and have since grown their practice requiring two office moves in ten years.

Dr. Nicole Sivie has continued taking classes and varying her interests completing two certification levels in Invisalign orthodontics and is well on her way to becoming a premier provider. Her studies also focus around the teachings at the Seattle Dental Institute and fellowships in laser dentistry. Dr. Nicole is also involved locally in the dental community, being a member of the Dallas County Dental Society peer review committee for three years and completing the Dallas County Dental Society Leadership Continuum in 2007. She was an active member in the Junior League of Plano for 10 years and is currently a sustaining member. Dr. Sivie is also is involved with local charities as a donor to Texas Dentists for Healthy Smiles and as a participating doctor with her team in the Texas Mission of Mercy effort which provides free dental care to impoverished families around the state of Texas. Dr. Nicole has memberships with the American Dental Association, Texas Dental Association, Dallas County Dental Society, Academy of General Dentistry, and the American Academy of Cosmetic Dentistry. She has been named Texas Monthly Super Dentist for 2007 through 2015 and was also chosen as one of D Magazine’s Best Dentists by her peers for 2008, 2011, 2013 and 2015. She has completed her Fellowship requirements for the Academy of General Dentistry and was awarded the honor of FAGD (Fellow of the Academy of General Dentistry) in June of 2012 in a ceremony in Philadelphia.

Dr. Nicole Sivie and her husband, Jason, have a 15 year old daughter and a 12 year old son!!! Sunny, the yellow labrador completes the family. Dr. Sivie has little spare time but divides it between her family, running and playing tennis. An accomplished marathoner and skydiver, she attempts golfing with her husband and they enjoy traveling with friends often.

Looking For The Top Voted Dentist In Plano, TX?

Lonestar Dental Group Is The Place

Get an experienced dentist near you in Plano, TX for any dental treatment or check-up. We provide comprehensive services including cosmetic dentistry, general dentistry, dental restorations, orthodontics, and much more besides providing emergency and preventive dental care.

Schedule your visit with us and get the dental treatment you require.

Insurance & Financing

Financial Information

At Lonestar Dental Group, we believe quality dental care should be affordable and accessible to everyone, regardless of income or insurance coverage. That’s why we do everything we can to make our care convenient and affordable for you, because we know how important it is to keep your family healthy.

If you don’t have insurance or need additional help affording a needed or elective treatment, we also have in-office and third-party financing options available. Flexible financing can help you get the care you need today and pay off your balance in affordable monthly payments that work with your schedule and budget.

Our Comprehensive Dental Services

General Dentistry

Restorative Dentistry

Cosmetic Dentistry

Special Services

Technology, & Products

Are we a good fit for you?

  • You want to save time and money over your lifetime to get optimal health.

  • Your goal is to be the healthiest version of yourself.

  • You want to receive the best dental treatment in your area.

Become Our New Patient

Start your new smile journey today!