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Renken Dentistry

Broad general and implant dentistry in Piper Glen, with 7 a.m. starts twice a week

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(217) 680-2746WebsiteUpdated Aug 31, 2026

About Renken Dentistry

An oral appliance for sleep apnea works on one piece of anatomy. Worn overnight, it holds the lower jaw slightly forward, which carries the base of the tongue with it and keeps the airway from collapsing on itself. For mild to moderate cases, and for people who have quietly given up on a CPAP mask, that can be the difference between treated and untreated. It is not a shortcut around diagnosis — the sleep study comes first, and severe apnea usually still needs the machine — but Renken Dentistry makes these appliances, which is uncommon enough in a general practice to be worth knowing about.

The Springfield office is the founding location of a group that has since grown to six practices, with Dr. Joshua Renken as founder and dentists including Dr. Maggie Schaefer and Dr. Karen Zerkle seeing patients. The scope is broad enough that most families will not need to travel for a referral: preventive care with fluoride, sealants and sports guards; fillings, crowns, root canals, extractions and dentures; periodontal treatment; dental implants and sinus lifts; full mouth reconstruction; Invisalign and conventional orthodontics; whitening, bonding and laser gum recontouring. Emergency appointments are offered, and older patients and children are both explicitly catered for.

New-patient visits open with the standard examination and imaging, then a treatment plan you should expect to be walked through in stages rather than handed as one intimidating figure. The practice describes its manner as gentle, honest and dependable, with patients not made to feel rushed. That is a claim you can test cheaply: book a hygiene visit first, see how the conversation goes, and decide afterwards whether you want anything structural done there.

The address is 2801 Mansion Road in Piper Glen, the southwest corner of Springfield in the 62711 zip, close to the Chatham side of town and the newer subdivisions out that way. Hours are broader than most local offices — 7 a.m. to 6 p.m. on Tuesdays and Thursdays, 8 to 5 on Mondays and Wednesdays, and a Friday morning that closes at 1 p.m. Those two long days are the ones to target if taking time off work is difficult, and they fill first, so ask several weeks ahead for anything that is not urgent.

For patients without coverage the office runs a Health Assurance discount plan and works with Cherry on payment arrangements for larger cases. Plans of that shape generally fold exams, radiographs and cleanings into one annual fee and discount other treatment by a set percentage, so they only repay the fee if you actually attend; two hygiene visits a year is roughly the break-even point.

Renken Dentistry's Springfield office at 2801 Mansion Road in Piper Glen is the founding location of a six-practice group. Care spans preventive visits, fillings, crowns, root canals, dentures, periodontal treatment, implants and sinus lifts, Invisalign and conventional orthodontics, whitening and laser gum recontouring, plus emergencies and sleep apnea appliances. A Health Assurance discount plan and Cherry financing are available for patients without coverage. Tuesdays and Thursdays run 7 a.m. to 6 p.m.

Clinic Details

Parking

Free parking lot

Best Known For

Family Dental Care, Dental Implants, Invisalign, General Dentistry

Business Hours

Monday
8:00 AM5:00 PM
Tuesday(Today)
7:00 AM6:00 PM
Wednesday
8:00 AM5:00 PM
Thursday
7:00 AM6:00 PM
Friday
8:00 AM1:00 PM
SaturdayClosed
SundayClosed

Frequently Asked Questions

Is the discount plan worth it if I have no insurance?
It depends on attendance. Practice plans like the Health Assurance option here typically cover your routine exams, radiographs and cleanings for a single annual fee, then discount other treatment by a set percentage. Two hygiene visits a year is roughly the break-even point; below that you are paying for something you are not using. Ask what the fee includes and what percentage applies to crowns and implants before joining.
How late in the day can I be seen?
Tuesdays and Thursdays run from 7 a.m. to 6 p.m., which are the days to request if you cannot leave work mid-afternoon. Mondays and Wednesdays are 8 to 5, and Friday finishes at 1 p.m. There is no weekend cover. Booking the first or last slot on one of the long days is the usual way to avoid spending half a day of leave on a dental appointment.
What can be treated here without going somewhere else?
A wide range: preventive care, fillings, crowns, root canals, extractions and dentures; periodontal treatment; dental implants and sinus lifts; full mouth reconstruction; Invisalign and conventional braces; whitening, bonding and laser gum recontouring. Sleep apnea appliances and sports guards are made here too, and emergencies are seen. Genuinely complex surgical cases can still warrant an outside specialist, but most routine and mid-level work stays in one building.

Location

Services Offered

Dental ImplantsBone GraftingOral SurgeryFull Mouth RehabilitationRoot Canal TreatmentInvisalignDentures

Reviews

1,492 reviews

Smyleee Rating reflects verified profile signals, reviews, and overall care quality.

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Recent Reviews

I
I***2 weeks ago
G
G***2 weeks ago
S
S***3 weeks ago
P
P***3 weeks ago

Timely appointment with friendly staff.

J
J***3 weeks ago

7/14/2026 I had a FREE appointment scheduled to create a treatment plan for an extraction and an implant. While I was there, I asked them to re-cement a crown that had come off the previous day. It took the Dr. and one technician no more than 5 minutes to re-cement the crown. When I was leaving the technician looked on the computer and told me there would be no charge. A few hours later they texted me a bill for $164.50, I called and reminded them that I was told there was no charge and they said they would discount it to $119.60 I have been using Renken Dentistry since 2021, and this is the way I was treated for 5 minutes work and a drop of glue. I just thought anyone considering using Renken Dentistry should know how they treat long-term clients 8/6/2026 Renken did provide a full refund and I thank them for that. Being senior that is on a fixed income I appreciate them doing this. I am also glad I didn't need to start shopping for a new dentist.

R
R***1 month ago

My 11 yr old crown broke this morning. I called the office just after 8 am. They got me at 1:30 today. Fast, easy, friendly and very caring! I highly recommend Renken Dentistry to everyone. They have an amazing staff and great doctors. Thanks Dr Z for everything!!

B
B***3 months ago

Went for my first filling and they did the nitrous & it didn't do anything so they did a referral for me. Everybody was still very kind, concerned & thorough. From the moment I walked in the desk person including everyone else I met it's very friendly, personable & everyone seemed genuinely concerned for their patients. They take time to talk to you & explain things thoroughly.

C
C***3 months ago

I checked in for my 11 am appointment. It was my 2nd time being at this location. Inhave previous experience with Schon dental next door. My hygienist Ally greeted me. We did not have to do xrays or any other pre cleaning services. She was very approachable and we talked about losing weight, weight lifting, and being consistent with fitness goals. She did a fantastic job and I would recommend her to anyone who is looking for a hygienist. She walked me to the front and set up my next appointment with me. Thank you Ally, you helped male an anxious event a lot easier to tolerate!

M
M***5 months ago

I had been going to this dentist office for many years. Always met by friendly staff members. Everyone seems like they enjoy working there. Procedures are explained well and preventative measures are provided. Also, had Invisalign here. I had a good experience with this as well. I would recommend this dentistry office. They always seem to be up on the latest technology too.

L
L***6 months ago

The staff at Renken Dentistry was exceptional for my first visit with them as a new patient. They are friendly, thorough, and they listen and address concerns. They were able to slide me into a free cleaning slot after my general checkup and X-rays. That was awesome because it saved more than a month of wait time for the next available cleaning appointment. Awesome experience all around and I appreciated the transparency about costs for an upcoming filling that I need.

Reviews are aggregated from public sources.

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