A little about our Grand Rapids office…

MI Smiles Dental Grand Rapids (near Calvin College) is not your average dental office, our team is passionate about exceeding expectations and providing life-changing dental care built specifically for you! When you walk through our doors you step into a judgment-free zone with a comforting environment that helps relax you at all times.

When you visit our Grand Rapids dental office, our judgment-free and friendly team will welcome you with a smile and serve you with compassion! Thanks to our skilled team of doctors, you can expect the highest level of care.

Our Grand Rapids, MI, dentists are always accepting new patients and provide dental care for all ages!

Why MI Smiles Dental Grand Rapids?
  • Judgment-Free Team.
  • Dental emergency? We offer same-day emergency visits!
  • General dentistry for the whole family.
  • Anxiety-free visits with laughing gas.
  • Our dentists provide virtually any service you would need under one convenient roof.
  • State-of-the-art facility with the latest cutting-edge technology.
  • Missing teeth? We offer multiple replacement options.
  • We put our patients first!
Dr Zwier Grand Rapids Dentist
Gr Top Dentist Grand Rapids Mi

A smile is the most powerful thing that a person possesses. I love helping my patients maximize that asset by making their smiles bright, their teeth straight and beautifully shaped with their oral health great. My passion is to provide the highest quality care at an affordable price. I want my patients to feel that they have been served with compassion. It gives me great joy to see them feel good about themselves and how they look because of the dental care they have received from me.

Education & Continuing Education

I am not satisfied with providing average care. I continuously pursue being the best and striving for perfection, a passion that began during my years in school. I attended Calvin College for my undergraduate degree and continued on to the University of Detroit where I earned my Doctor of Dental Surgery degree in 1982. I completed my General Practice Residency at Strong’s Memorial Hospital and the University of Rochester in 1983. I am devoted to excellence and am a lifelong learner. I am constantly fine-tuning my existing skills and continuously embracing new skills and technology. In 1987, I became a fellow of the Academy of General Dentistry after completing numerous hours of continuing education in all aspects of dentistry. In 1996, I became a Master of the Academy of General Dentistry. I am a recipient of the Lifelong Learning & Service Recognition through the AGD. I am a member of the American Academy of Cosmetic Dentistry. I am also a member of the West Michigan, Michigan, and American Dental Associations.

Passion for Leadership & Giving Back

I have been an elder in my church since 2002 and am a founder of a collaborative ministry called Seeds of Promise, working together with many different organizations to bring sustainable transformation to the neighborhoods and areas of the city with the greatest needs. I have been part of this movement for 15 years. For over 20 years, I volunteered dental services at Exalta Health, formerly known as the Baxter Clinic, and now sit on their advisory committee. I have been on four overseas mission trips to Siberia, Dominican Republic, Honduras, Nepal, and Kenya. See www.worldmission.cc. For over seven years, I have also provided free dental exams to hundreds of children at Convoy of Hope Days in Grand Rapids.

Outside the Office

I am a native of Grand Rapids and feel very fortunate to serve in the community where I grew up. My wife, Julie, and I have been happily married for 42 years and we have three grown children, Laura, Katie, and Michael. Julie and I are now grandparents of six grandchildren. In my free time, I can usually be found playing golf, walking the shoreline of Lake Michigan, or working in my yard.

Dr Thomas Greidanus 2
Gr Top Dentist Grand Rapids Mi

Dr. Greidanus grew up right here in Grand Rapids. He completed his undergraduate degree in biology at Calvin College. He went on to complete his doctorate at the University of Minnesota School of Dentistry.

We asked Dr. Greidanus a few questions so you can get to know him a little better!

What led you to seek a career in dentistry?

“I would point to my own personal dental pain as a child and friends who could not afford the dentistry that they needed. I was driven by the large disparity in the number of dentists compared to the number of people in need. At the end of the day, I have always just wanted to serve my community and my passion for dentistry lets me do just that! I also grew up fascinated with science and working with my hands, which also fit perfectly into my dream profession of being a dentist!”

What are some of your personal achievements?

“Outstanding Delta Sig Award, Dean’s Scholar, Masons of Michigan Leadership Award, National IOOF Leadership and Service Award, Community of Hope Medical Scholarship, Henrik Zetterberg Hockey Award for Outstanding Student and Community Contributor, Eagle Scout Award, 2015 Rock Climbing Championship, Grand Rapids Foundation Community Service Scholarship, South Minneapolis Voluntary Covid Prevention and Medical Response Team Leader Summer 2020”

What volunteer work have you been a part of?

“I have a big passion for helping my community whenever I get the chance. I have actively volunteered in Hope Dental Clinic, Give Kids a Smile, Degage, Exalta Health, God’s Kitchen, Mel Trotter, Second Harvest Gleaners, Habitat for Humanity, EMAS Ecuador, Community of Hope Ethiopia, CRC World Missions, Dental House Community Service Coordinator, Community Youth Leader, and Plaster Creek Stewards.”

What other awesome and interesting things could you share about yourself?

“I would say I am a mixed bag of things… I have dual Canadian/American citizenship. I am an avid rock climber. In my spare time you may find me in the shop wearing my craftsman hat, making, refurbishing, or fixing something with carpentry or metal work. At a wedding you won’t find me at a table, but rather on the dance floor. I also have a strong passion for coaching and playing the sport of hockey!”

What is your favorite part about working with patients?

“I would definitely say helping them maintain the function they need to smile confidently, eat normally, and live without dental pain!”

How do you treat yourself after a long day of work?

“For sure a good workout and a BIG dinner!”

What is your favorite dental treatment to do?

“I have always loved Endodontics.”

What are your 3 favorite movies?

“Waking Ned Devine, Lord of the Rings Two Towers (extended version of course), and Just Mercy”

What is the most beautiful place you’ve ever been?

“Bryce National Park in Utah especially at night in the moonlight!”

It can be hard to find a dentist
so why choose MI Smiles Dental Grand Rapids?

  • Same-Day Emergency Visits
  • Anxiety-Free Visits With Laughing Gas
  • Affordable Membership Plan for Uninsured Patients
  • Dentistry For The Whole Family
  • Latest In Advanced Dental Technology
  • Virtually Any Service You Could Need Under One Convenient Roof

Still not sure? Take this short quiz to see if we are a
good fit!

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"Dr. Zwier and his staff are the dental office I always wanted to find--professional, knowledgeable, kind, and honest. Some of my previous ones were not. Dr. Zwier's work, as well as that of his hygienist, is superb." Sandra W.
"Very pleased with the professional dental service received. Doctor and staff very personable and friendly." Jared H.
"Very nice experience… Had a crown replaced, they were well equipped, informative, thoughtful, efficient, and using the latest materials. Dr. Peiffer has a very comfortable manner in explaining things, highly recommend!" Steven B.
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