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Your Trusted Periodontal Specialists In Minnesota

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Periodontal Specialists 50 Years Anniversary

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Periodontal Specialists Offices

Northfield, MN

Red Wing, MN

Owatonna, MN

Rochester, MN

Winona, MN

Meet Our Periodontists

Dr Thomas Wolfe

DDS, Master of Science in Dentistry

Dr. Wolfe is originally from Lincoln, Nebraska. He attended the University of Nebraska College of Dentistry where he received his D.D.S. degree in 1986. Dr. Wolfe received his Master of Science in Dentistry and certificate in Periodontics in 1989 from the Indiana University School of Dentistry. Upon completion of his graduate program, Dr. Wolfe joined Periodontal Specialists.

DR. W. Bliss
Dr Kristy Johnson-DDS, Board Certified in Periodontology & Dental Implant Surgery

Dr Kristy Johnson

DDS, Board Certified in Periodontology &
Dental Implant Surgery

Dr. Johnson was born in Wyoming, and raised in Summersville, West Virginia. She received her bachelor’s degree from West Virginia University and spent a semester exploring her heritage in the arctic city of Bodø, Norway. She also earned her D.D.S. degree from WVU. Dr. Johnson received her periodontal training at the UAB School of Dentistry & the VA Medical Hospital in Birmingham, Alabama. After completion of her graduate programs, she joined the team at Periodontal Specialists.

Dr. Efstratios Choreftakis (Dr. Stratos)

DDS, Master of Science in Dentistry

Dr. Stratos was born and raised on the Greek island of Crete. Drawn to the health sciences from an early age, he earned his Doctor of Dental Surgery (D.D.S.) degree from the School of Dentistry, National and Kapodistrian University of Athens, graduating as valedictorian with the highest GPA in his class and receiving the State Scholarships Foundation of Greece Award for academic excellence. Prior to dental school, he studied at the University’s School of Pharmacy, gaining valuable pharmacology knowledge that continues to benefit his patients. His journey has taken him from the lecture halls of Athens to serving in the Greek military at the 401 General Military Hospital of Athens and caring for patients in private practice.

periodontist

Invest in your smile & oral health

Our Periodontal & Implant Services

Periodontal Disease

Periodontal Disease is the term used for a group of diseases ranging from gingivitis to periodontitis.

Dental
Implants

Dental implants are artificial roots placed under the gum

Laser
Therapy

The Periolase offers a gentle, conservative and less invasive therapy for the gum disease

Northfield Op

The Treatment Procedure

1 (2) (1)

Schedule Your First Visit

We will schedule your first visit, by appointment only. Our office does not accept walk-in appointments.
2 (2) (1)

Conduct Clinical Examination

One of our periodontists will complete a thorough clinical exam, review your x-rays and any other necessary diagnostic information. Additional x-rays may be taken during this appointment at the request of your periodontist.
3 (3)

Perform Treatment

Our team takes pride in ensuring a comfortable, positive experience for you the day of your treatment, and patients always express they are pleasantly surprised when they’re all done.

Options For Missing Teeth Replacement

For Partial Teeth Replacement

Partial Dentures

Partial Dentures

  • Non-Invasive
  • Best for People with a single or small section of Missing Teeth
  • Faster than most Teeth Replacement Procedures
Dental Bridges

Dental Bridges

  • No Bone Grafting needed
  • Maintain Natural Face Shape
  • Best for People with a single or couple of Missing Teeth
upper lower arch

Upper/Lower Arch Implants

  • Best for People with Complete Dental Arch Decay or Multiple Missing Teeth
  • Helps to prevent additional jawbone loss. Supports muscles in the mouth

For Full Mouth Reconstruction

All-on-4 Dental Implants

All on 4 Dental Implants

  • Completely Restore your Smile
  • Mostly doesn’t need a bone graft
  • Permanent Lifetime Solution
All-on-6 Dental Implants

All on 6 Dental Implants

  • Improved Stability
  • Improved Jaw Support
  • Safe and Robust
Denture Stabilization 1

Denture Stabilization

  • Affordability of Prosthetics, Stability of Implants
  • Prevents Jawbone recession
  • Prevents Mouth Sores & Gum Irritation

Referring Doctors

Our commitment is aligned with your desire to provide the utmost care for your patients. We promise to uphold your interests by delivering exceptional and specialized medical treatment, ensuring the highest standard of care for every patient. 

Periodontal Disease

GINGIVITIS & GUM DISEASE

Periodontal Disease is the term used for a group of diseases ranging from gingivitis to periodontitis. The cause of this disease is the bacteria in dental plaque. If plaque, a colorless sticky film that covers the teeth, is not removed daily with brushing and flossing, the bacteria will cause the gum tissue to become red and swollen.

Expertise in Dental Implants

DENTAL IMPLANTS & SINUS AUGMENTATION

Dental implants are artificial roots placed under the gum, designed to either replace a missing tooth or secure a partial or denture.
Dental implants feel very natural & are the first choice by dentists and patients for filling a missing space. They feel rather similar to the original missing tooth that most patients forget they even have an implant!

whiteline

Education Outreach

whiteline

Program

Registration is OPEN!!

2025 PSEO Team Appreciation CE Day

Dr. Kevin Nakagaki & Dr. Kristy Johnson

September 24th, 2025 8 a.m. – 4 p.m.

What People Think

Patient Testimonials

Diane Weis
1 month ago
Dr Johnson and her staff are awesome!! I trust them and know they will take great care of me! They are friendly, knowledgable, excellent at their jobs and always make me feel comfortable! I always leave their office with a smile! Thank you!!!
Response from the owner:Thank you for sharing! We appreciate the very kind review!
Andi Bute
1 month ago
This place is amazing from Dr. Wolfe and the staff and my favorite Sabrina H. She goes above and beyond to make sure you’re taken care of as a patient. If you’re nervous she communicates well. I came back everytime because great customer service is huge. Thank you for treating your customers with care and respect.
Response from the owner:Thank you so much for the kind review. We appreciate it!
Dean Witz
4 months ago
Absolutely exceptional experience!! My procedure was painless, incredibly fast, and with amazing results! (Better than expected.) In addition, the entire staff was extremely considerate and encouraging! A++ experience. I highly recommend!
Response from the owner:Thank you so much for your kind words. We truly appreciate you taking the time to share your experience. Our team is grateful for the opportunity and we’re so glad you felt well taken care of. We look forward to seeing you again!
Curt Sands
4 months ago
I am very happy with the service and the staff. Dr Johnson is very particular in making sure that everything is done correctly. She is very informative and pleasant to work with. I recommend them to anyone needing dental care.
Response from the owner:Thank you, for your kind words! We appreciate you sharing your experience with Dr. Johnson and the team. It means a lot to us!
Kelly Wangen
4 months ago
Vanessa is great!!!
Response from the owner:Thank you for the kind review of Vanessa! We think she is pretty great too:)
Jennifer Nelson
6 months ago
This place has been truly so kind during the healing process of my gum graft. They went out of their way to get me in unexpectedly to relieve anxiety of the graft I was having and answered my questions with such kindness, especially Joshua. I will always remember their kindness! Thank you!
Response from the owner:Thank you for the very kind review! We appreciate it so much!
Steven Delaney
6 months ago
Response from the owner:Thank you for the 5 star review!
Bob Munson
6 months ago
Very knowledgeable, great communication, and very accommodating in all there businesses. I have used Owatonna and Rochester both are excellent.
Response from the owner:Thank you for your kind review! We appreciate it!
Kathy Wett
10 months ago
Response from the owner:Thank you for the review! We appreciate you!
Tom Harron
11 months ago
I would highly recommend Periodontal Specialists! 1) Melissa (Winona) clearly covered the options, pricing, insurance with doing one appointment (all teeth in one sitting), or spreading things out over two appointments... and got me scheduled in Rochester for an earlier appointment. 2) Dr. Kristy Johnson and surgical assistant Danielle (Rochester) were great. I would recommend the valium option, it is very relaxing and no negative side effects. Jule (Rochester) was very helpful with post-op questions I had in the first few days. 3) And finally, Chloe (Winona) was great in the post-op appointments answering a multitude of questions and providing do's and don'ts. The entire team does a great job and they very upbeat and encouraging.
Response from the owner:Thank you for the very kind review. We appreciate your trust and are so glad you had a great experience with our team.
Jeremy Wood
11 months ago
Response from the owner:Thank you!
A A
12 months ago
One the best place I got treatment. I did my Laser Sergury with Dr Wolf & result was unbelievable .The all stuff are amazing & so caring. I highly recommend you this Awesome place.
Response from the owner:Thank you! We appreciate you taking the time to share!
Kristen Smith
12 months ago
Everyone from Periodontal Specialists is commended for their top-notch service that is welcoming, friendly, and professional from my initial visit, dental surgery, and throughout the recovery. Thank you!
Response from the owner:Thank you very much for the kind review! We appreciate it!
leeann resendiz
1 year ago
Had a very good experience, pam was very caring and explained the whole process as she was going along and made sure i was comfortable.
Response from the owner:Thank you Leeann!!
Rick Giesen
2 years ago
So far it was way easier than I thought it would be!!
Response from the owner:Great to hear Rick! Thank you for sharing!
Gene Schultz
2 years ago
Very friendly professional personnel. They explain everything and answer any questions you have.you won’t find a better staff anywhere.
Response from the owner:Thank you Gene for the very kind review! We appreciate it!
Sara Gregg
2 years ago
The staff is awesome! Office was clean and inviting. From check in to check out was just a great experience. Dr Kristy Johnson was warm and welcoming. She spent time explaining everything to me and made me feel like she was willing to spend as much time as I needed asking questions. Highly recommend Periodontal Specialists if you are in need of this type of care.
Response from the owner:Thank you Sara for the kind review of Dr. Johnson and our Winona office!
Judy LeBrun
2 years ago
Response from the owner:Thank you!
Frank Pete
2 years ago
They did a very good job on my teeth no pain during surgery with all of their instructions I had a easy recovery. Thank you Amie and Dr Wolf you were awesome.
Response from the owner:Thank you for sharing! We appreciate the kind review of Dr. Wolfe and Aimee!
Brian
2 years ago
Response from the owner:Thank you!
George Vogel
2 years ago
Response from the owner:Thank you!
Joni Hayes
2 years ago
Dr Johnson and her assistant could not have been more kind! Also very very knowledgeable! Thank you for making my experience so calm.
Response from the owner:Thank you for the kind review of Dr. Johnson and her assistant! We appreciate it!
Anonymous
2 years ago
I have very high dental anxiety and everyone in the office was so kind and understanding. Dr. Kristy Johnson explained me well about my gums. It was great experience to have. Thank you
Response from the owner:Thank you for your kind review and sharing your experience!
Elizabeth
2 years ago
What a wonderful office! So welcoming, clean and the staff are incredibly kind and understanding.
Response from the owner:Thank you for the kind review!
Lei WU
2 years ago
Response from the owner:Thank you!

Specializing in Dental Implants

Financing Options

Northfield - Dental Clinic Lobby

Specialized Dental care: Let us help you Find the Right Financing Option

At Periodontal Specialists, we believe that nothing should come between you and a healthy smile – especially not finances.

That’s why we gladly accept most insurance plans and will file all claims for you. Plus, as an unrestricted provider for most insurance companies, we’ll work with your plan to help you get the most out of your benefits.

But insurance isn’t the only way to save with us. We understand that dental care is an investment in your overall health, so we’ve created flexible financial programs and savings options to fit your unique needs.