1,000+ 5-star reviews
Where Growing Families Get Convenient, Complete Dental Care in Leander
Your smile is in great hands
Smiles Transformed
5-Star Reviews
1000's
Of Patients Treated

sAITHEJA K.
"I was quite nervous before my dental appointment, but Dr. Collen made me feel completely at ease. She was incredibly patient, gentle, and communicative throughout the process. The deep cleaning was done so smoothly — I didn’t feel any pain or discomfort at all. Her professionalism and care truly stood out, and I’m so glad I chose her. I highly recommend Dr. Collen to anyone looking for a skilled and compassionate dentist. Thank you so much, Dr. Collen!"

kATIE v.
"Everyone from front desk to dental hygienists to dentist are awesome ! They are Caring and kind and concerned about my needs !! Treat you like family !! Dr Hansen amazing !! Highly recommended!"

bILL g.
"Dr Hansen is so knowledgeable and professional. I appreciated that he took the time to explain to me how the procedures he was doing were helping my dental health!"

fLORENCE T.
"I am very pleased with the implant and crown placed by Dr Preston Hansen on me. His skills and care for patients are outstanding. His team of dental assistants and hygienists are wonderful."

Teresa Y.
"I am very pleased with the care I have been receiving at Renken Denistry. Everyone is knowledgeable and very nice. Highly recommend the Crystal Falls location to anyone needing a denist."

Dianne G.
"I am very pleased with my experience at Renken Dentistry. Everyone is friendly, caring and concerned with my comfort. Colleen made sure I knew what and why she was doing something and Dr Hanson as always, was caring and professional as he addressed concerns and all possible options. I felt very comfortable and listened too! Thank you to all the staff!"
Insurance Information
We believe that high-quality dental care should be accessible. That's why we work with a wide range of insurance providers to help make your dental care more affordable.
We are proud to be an in-network provider for Cigna, Delta Dental PPO & Premier, Connection Dental, and Aetna.

Get affordable preventative & restorative care without insurance
Basic Support
Good for patients with no planned care, low existing dental work, and low risk factors.
As Low aS:
$25/mo
or $300/yr
Full mouth X-rays, Panoramic X-ray, Bitewing X-rays
Sealants and fluoride varnish
2 cleanings and Dental exams
15% off basic, advanced, and elective care offered in office
Health Creator
Good for patients with planned care, moderate amount of existing dental work to maintain, and a history of risk factors.
As Low aS:
$35/mo
or $360/yr
Full mouth X-rays, Panoramic X-ray, Bitewing X-rays
Sealants and fluoride varnish
2 cleanings and Dental exams
50% off periodontal services
35% off basic, advanced, and elective care offered in office
One free whitening gel tray refill
Health Rebuilding
Good for patients with significant problems throughout, a history of risk factors, and a desire to rebuild a healthy mouth.
As Low aS:
$85/mo
or $1,020/yr
Full mouth X-rays, Panoramic X-ray, Bitewing X-rays
Sealants and fluoride varnish
2 cleanings and Dental exams
2 additional cleanings if needed
75% off periodontal services
45% off basic, advanced, and elective care offered in office
25% discount on orthodontic and botox services
One free whitening gel tray refill
Add additional benefits to your primary plan for your unique needs
Team Member Family Plan
Good for patients with significant problems throughout, a history of risk factors, and a desire to rebuild a healthy mouth
Price per Member
$10/mo
or $120/yr
Full mouth X-rays, Panoramic X-ray, Bitewing X-rays
Sealants and fluoride varnish
2 cleanings and Dental exams
2 additional cleanings if needed
75% off periodontal services
45% off basic, advanced, and elective care offered in office
25% discount on orthodontic and botox services
One free whitening gel tray refill

Flexible Financing
Get the care you need, when you need it without any delays or complications. We are committed to offering a wide range of flexible financing options that cater to patients from all varying needs and diverse backgrounds.


Dr. Preston Hansen
Dr. Preston Hansen is a highly skilled dentist who graduated from Nova Southeastern University College of Dental Medicine in Fort Lauderdale, FL, in 2017. Following dental school, he completed a one-year residency at St. Francis Hospital and Medical Center. Dr. Hansen’s journey to dentistry was unique, starting as a film major in college before
realizing that dentistry would be the perfect way to combine his creativity with his desire to help people.
Passionate about providing the best care for his patients, Dr. Hansen actively seeks continuous education opportunities, attending various courses throughout the year. He has honed his expertise in implant surgery and restoration, full mouth rehabilitation, TMJ disorders and Invisalign, keeping himself up-to-date with the latest dental techniques and technologies.
Among his favorite procedures are crowns and bridges, root canals, TMJ disorder treatment and creating functional smiles. Dr. Hansen’s dedication to professional growth and excellence is evident from his recent accomplishment of becoming a fellow in the Academy of General Dentistry (AGD). This prestigious achievement required completing 500 continuing education hours, maintaining AGD membership for three continuous years, and acing a comprehensive 250-question exam covering all aspects of dentistry.
Currently, Dr. Hansen is a member of several dental associations, including the American Dental Association, Texas Dental Association, Capital Area Dental Society, and the AGD. His thirst for knowledge and personal growth motivates him to pursue his mastership in the AGD after completing his fellowship.
Beyond his dental practice, Dr. Hansen enjoys maintaining an active lifestyle, reading, and cherishing moments with his beloved wife, Dr. Kwak and his daughter. He is thrilled to share this joyful journey with his patients and colleagues alike. So, if you see him around the office, don’t hesitate to extend your warm greetings!
Dr. Calvin Tran graduated from Western University of Health Sciences in Pomona, California, where he earned his degree in Doctor of Dental Medicine. Throughout his childhood, Dr. Tran faced dental challenges that affected his confidence to smile. With the help of a compassionate dentist, his confidence grew tremendously and he wanted to help others in the same way. Dr. Tran appreciates the field of dentistry which allows him to work directly with patients to create strong, long-lasting bonds.
A proud member of the American Dental Association and Digital Smile Design, Dr. Tran is particularly interested in advanced procedures such as dental implantology and orthodontics. He has a strong commitment to learning and embracing technological breakthroughs.
Outside of dentistry, Dr. Tran enjoys new restaurant experiences, maintaining an active lifestyle through gym sessions and paddle boarding at Barton Springs. Dr. Tran also enjoys going to the movies and spending time with his dog, Otto.
Let's get you scheduled!
Renken Dentistry, 2026
Powered by Wonderist Agency, WonderFunnels | Privacy Policy