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Sparta Dental Center Dr. Knoll is a native of Cashton, Wisconsin and attended UW- Lacrosse where she received her Bachelors degree in 1997. From there, she attended the University of Minnesota School of Dentistry. Your teeth should last a lifetime. Proper preventative care can help you keep your mouth healthy and functional.

Dr. Knoll has the experience and expertise to help you restore and maintain your oral health. Do not wait until you are in pain. Give your teeth the attention they require with regular cleanings and examinations with your local dentist in Sparta.
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Joanna graduated from the university of New Mexico with a bachelors in Dental Hygiene in May of 2008. Before moving to WI in October of 2018, she worked in a private practice office with the same Dentist for over 10 years! Joanna has been married to a traveling nurse for over 12 years! They have 5 children and a mini schnauzer who enjoys watching the traffic and people who walk by her house.
Our highly qualified hygienists measure the gum pockets and bone levels, record recession and bleeding, and treatment plan a cleaning process that is specific to the patient's level of disease. If you do not have a recent set of x-rays, we will begin by taking a new set of digital x-rays. X-rays are an important tool to assist our doctors in properly diagnosing your dental health issues.
Dr. Knoll is a native of Cashton, Wisconsin and attended UW- Lacrosse where she received her Bachelors degree in 1997. From there, she attended the University of Minnesota School of Dentistry. She has followed her education with courses in comfortable conscious sedation dentistry, pain and infection management, pharmacology, crown and bridge esthetics, orthodontics, implants, bone grafting, and BOTOX.
Dr. Hannah Morgan grew up in Soldotna, Alaska where she learned an appreciation for nature, exploration, and even dentistry. She moved to Montana in 2012 and earned her Bachelor's Degree in Biochemistry in 2015. Dr. Morgan learned in her time in Montana she was interested in research and academia and worked in a neuroscience lab in Montana for two more years.
Reviews (27)
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Julie Hardy
Nov 04, 2021
This past year we moved from Illinois to Wisconsin. I was looking for a Dental office which addressed COVID procedures. I checked their website and right away it stated what they do within the office. During my visit they took X-rays, rated my gums, and took pictures of every tooth in my mouth. My hygienist Tia was wonderful, and it was great to see when Dr. Knoll walked it to the room, she disinfected her hands in front of me. I'm very impressed with the Sparta Dental Center and would highly recommend this office to everyone.
Lynn Edwards
Oct 31, 2021
Teeth feel so good! Lauren is awesome! Appreciate her thoroughness, questions, sense of humor, care of removing plaque and paying attention to detail. The clinic is always on the cutting edge when it comes to equipment. Also got to meet Dr Morgan for the first time! A great fit for Sparta Dental! When you walk into the clinic it is such a warm welcoming from front desk to cleanliness, decor and fall decorations and choice in colors and comfortable seating. Kudos to Dr Knoll and her team! See you next year!
Kris Brieske
Oct 07, 2021
All around Great staff. Always friendly and very professional. Every six months I get caught up with Lauren, who is awesome. KB
Kathy Crocker
Sep 30, 2021
Always pleasant and professional. Can I say I look forward to going to the dentist? Yes. They take great care of you.
Maggie Cathleen
Sep 20, 2021
When my 9 year old daughter broke off part of her permanent front tooth she was devastated! Dr. Morgan made her smile beautiful again and restored her confidence! We love you guys and can't imagine going anywhere else!
Amanda Shinsky
Sep 14, 2021
The staff is so friendly and explains every step. I love Dr. Knoll! Amanda Smith
Laura La Marche
Sep 03, 2021
Dr. Knoll is quick, efficient, and terrific at putting her patients at ease. Her skill is unquestionably top notch and her chairside banter keeps my mind off of what she is doing in my mouth! I highly recommend her and her great staff.
Mary Miller
Aug 31, 2021
Well to start, my hygienist Tia is ever professional, personable and a terrific clinician. My teeth feel marvelous! Dr Hannah Morgan made my exam a highlight with her jovial nature but thorough and concise exam. Both are a great asset to Sparta Dental Center.
Doug Furnier
Aug 27, 2021
We have been going here for about 20 years. They make the dental experience as pleasant as possible. The office is nicely decorated and furnished. Every encounter has been very professional, pleasant and thorough. Highly recommended.
Brenda Braatz
Aug 12, 2021
My assistant used short negative statements in her responses towards me. With no friendly atmosphere. This is very unusual at Sparta Dental. I usually always have wonderful service and Dr Knoll's team is usually amazing. I have been going here for 17 years.
Samantha Stark
Jun 05, 2021
I have dentists in my town 35 minutes away, but chose to check into Sparta Dental Center because I've heard great things. Years later, I'm still going back and love the positive, calm atmosphere as well as all of the staff I've experienced. Each time I've felt valued and respected and sometimes, that's hard to find! Love this dentist, Jennifer Knoll and the team she has. Definitely recommend.
Arlene Sprague
May 29, 2021
I have been coming to Sparta Dental Center for at least 18 yrs now along with my children. We have always enjoyed coming here. We have never had a bad experience and look forward to the next visit. The staff here feels like family.
Randy Schmitz
Mar 04, 2021
I've been very pleased with Sparta Dental, the staff and Dr Knoll are all very courteous and caring. They even were able to negotiate with me when I needed to make a payment plan. I really appreciated that! I would not hesitate to recommend Sparta Dental to anyone looking for a professional and customer oriented experience.
Gary Ascher
Dec 06, 2020
Words cannot adequately describe my awesome experience at Sparta Dental Center. They are very caring, friendly and professional. I switched to Sparta Dental Center after a very bad experience with a different dentist and switching was one of the best decisions I have ever made. Thank you so much!
Terry Schallert
Feb 17, 2020
Gotta say it, these folks are professional, thourough, jeyful to be around (I said that about a dentis and staff) and just plain nice. Only dentist I've had in my 65+ years that I can say I am totally at ease with.
Terry Schallert
Feb 17, 2020
Gotta say it, these folks are professional, thourough, jeyful to be around (I said that about a dentis and staff) and just plain nice. Only dentist I've had in my 65+ years that I can say I am totally at ease with.
Flock ScOtj
Nov 15, 2019
Just wanted to say u guys at sparta dental are the best very professional and excellent care best dentist appointment I've ever had ty
Ashly Lynn
Nov 02, 2018
Apparently u will be denied service if ur too busy with life & forget to make an appt. no other place have I been denied service! horrible. do not recommend.
Awall Wallerman
Aug 16, 2018
Best Dentist Office Around. Sparta dental is so caring and the staff are always so pleasant; treat us like family.
Christine Spahr-Nathan
Aug 09, 2017
All the staff are very friendly, and help make you feel comfortable in every way!
Kylee Dutton
Jul 06, 2017
The staff is great! I went in to have a tooth pulled today and Chris and Dr. Brown and Barb were all very helpful and reassuring. The only reason I didn't give it a 5 is because it is a bit over stimulating. The receptionist was very nice but very loud. Once you go to go back to a room there are people everywhere. Maybe for most people theae things wouldn't be an issue? I'm very happy with the care! The staff were so caring, informative and calming! Thank you for taking good care of me!
Gerry Sudman
Jun 22, 2017
They were not my regular dentist. However, I had been having trouble getting an appointment closer than 4 weeks away, with my dentist, to solve a lower denture problem that made it more like a torture device. Sparta Dental gave me an appointment the morning after I called and solved my problem withing 10 minutes. My wife is in need of new dentures, we will definately call Sparta Dental.
Gerry Sudman
Jun 22, 2017
They were not my regular dentist. However, I had been having trouble getting an appointment closer than 4 weeks away, with my dentist, to solve a lower denture problem that made it more like a torture device. Sparta Dental gave me an appointment the morning after I called and solved my problem withing 10 minutes. My wife is in need of new dentures, we will definately call Sparta Dental.
Amanda Arentz
Aug 18, 2016
Sparta dental always makes me feel comfortable and confident! The staff is extremely friendly and has helped me achieve the smile that I've always wanted :
Shane S.
Dec 17, 2015
Sparta dental is pretty thorough, and the last hygenist I had was nice. I'll give them that. However, when it comes to the billing portion, good luck! I've been there for three appointments and every time they mix something up. Their receptionist is completely clueless when it comes to the billing portion. In my latest visit, they could not come up with a correct total right away, so I asked them to bill me.

This was because I asked the hygenist, doctor, and the billing lady how much the cost would be, and I received three different numbers. They billed me incorrectly three times in a row, and now are not willing to email me a receipt of my recent work done. They are very, very difficult to work with!
Mike Schueler
Nov 11, 2015
My recent appointment at Sparta Dental was possibly the best dental experience I've EVER had. As one who is “dental phobic” Dr Jen suggested that I use a process known as conscious sedation. I literally slept through the entire procedure which lasted several hours. My wife drove me home put me to bed that afternoon and I woke up the next day. I didn’t have the throbbing pain I’ve experienced in the past at other dental offices.

On a side note, it was the best night of sleep in my life! Honestly, I don’t remember much after sitting in the chair, but my wife said the staff treated us with kindness and compassion attending to her needs as my driver as well as mine as the patient. If you have dental phobia or have anxiety in the chair, I highly recommend you ask about conscious sedation for your procedure at Sparta Dental. What a wonderful experience. Thank you Dr. Jen! and staff
Zachary Dowell
Dec 18, 2014
Thanks for being so welcoming and making me feel very comfortable! I'm glad I chose you!