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Dr. Sandra Derringer, Owner/DMD

I enjoy taking care of people, interacting with them and helping with their dental needs. I realize some people have concerns or fears of going to the dentist and I am respectful, compassionate, and even entertaining to help my patients have a pleasant dental experience. I treat all my patients as I would want to be treated or as I would treat my own daughters.

I feel blessed to work with so many wonderful patients. We share our stories and lives with each other, celebrating fun events and creating meaningful relationships. I love educating them about the importance of maintaining their oral health or making improvements when necessary, and then celebrating when optimal health is achieved.

I absolutely love practicing dentistry and have been working in a dental office since I was 15 years old! I was employed as a dental assistant, then attended Palm Beach Community College graduating in 1988 as a licensed dental hygienist.   Gaining more and more respect for the profession and wanting to give more to my patients, I returned to school, Palm Beach Atlantic College, in 1990 to complete my prerequisites for dental school. I, then, continued my education at the University of Louisville School of Dentistry, graduating in 1997 with my Doctorate of Dental Medicine.

Dr. Jessica Mirrielees, DMD

Dr. Jessica Mirrielees, a Lexington native, completed her undergraduate education in Chemistry at Western Kentucky University and her Doctorate in Dentistry at the University of Kentucky College of Dentistry.  Dr. Mirrielees’ caring nature has allowed her to establish great relationships with her patients and treat everyone as if they are family.

 Dr. Mirrielees’ approach to dentistry is rooted in providing naturally beautiful outcomes with sound function and health. Her firm belief that the health of the mouth is critically connected to the body drives her to educate patients. A commitment to learning from the best keeps her fresh and passionate about dentistry. She always strives to deliver 5-star service while going above and beyond to make her patients feel comfortable and relaxed.

Outside the office, Dr. Mirrielees enjoys spending time with her husband and daughter. They all love to go down to Lake Norris in Tennessee for boating and lake fun. She enjoys running, any outdoor activities, watching her daughter ride horses, and playing with her golden retriever. Her husband, Dr. Jeff Mirrielees, is a local orthodontist with Candyse Jeffries Orthodontics.

Victoria, Administrative Office Manager

Victoria joined our team in 2012, and is responsible for the smooth running of the office and schedule on a day to day basis, providing an organized work environment and a friendly atmosphere for our patients. You will normally see Victoria at the front desk working with our patients to help them understand their insurance and scheduling their appointments – if you have an insurance question, she is our ‘go to’ girl! Victoria has been with our office since 2012 and enjoys making all of our patients a part of our Dental Family. Victoria is an Ambassador for the American Association of Dental Office Managers (AADOM) and will graduate from their Fellowship program in August 2015. She is also the President of the SW Ohio / Northern KY Dental Office Managers Study Club and strives to remain up to date on Dental Industry developments. Victoria moved from England to Kentucky in 2008 and resides in Florence with her Husband Shawn, and her Twin boys, Joseph and Daniel.

Manda, Expanded Functions Dental Assistant (EFDA)

Manda works alongside Dr. Derringer assisting our patients when they come into our office for treatment, and you will normally find her placing fillings, designing crowns, working with our invisalign patients and assisting Dr. Derringer with Botox treatments. Manda has been in the dental industry for 9 years and returned to school to obtain her EFDA qualification, graduating from Indiana University in 2010. Manda has been a part of our Dental Family since 2011, and takes great pride in building relationships with our patients and getting to know them and their families. Manda lives on her Farm in Hillsboro OH, with her husband Jesse and her gorgeous baby Harper.

Danielle, Registered Dental Hygienist (RDH)

Danielle began her career as a Dental assistant in 2006 while she attended Colerain High School. Upon graduation she realized that she wanted to be more involved in patient education and care, and graduated from UC Blue Ash (Raymond Walters College) in 2012 with her AAS in Dental Hygiene. Danielle joined our team in 2014, and our patients describe her as sweet and friendly, and gentle yet thorough. Danielle spends time with her patients getting to know them and their families and connecting with them on a personal level. Danielle is a member of the American Dental Hygienists Association and is consistently taking classes to keep up to date with the latest methods and techniques. In her free time, Danielle enjoys boating, and being active with her husband Mike, and her friends and family.

Amy, Expanded Functions Dental Assistant (EFDA)

Amy is a new addition to our team. 

Amy works alongside Dr. Mirrielees, assisting our patients when they come into our office for treatment, and you will normally find her placing fillings, assisting with extractions, crowns,  invisalign , and dentures. She has been Dr. Mirrielees’s EDDA since 2013.  Amy obtained her EDDA qualification graduating from The Academy of Dental Assisting in 2009. In 2010, she briefly relocated to Los Angeles CA, where she assisted at an elite cosmetic dental office in downtown Beverly Hills.   Amy’s caring, soothing, and helpful personality is appreciated by our patients.  Amy resides in Villa Hills KY, with her husband Billy, and their dog. In her free time, she enjoys going to Reds games, running, and spending time with her friends and family.

Theresa, Expanded Function Dental Assistant (EFDA)

Theresa joined our team in 2000 and has worked in the dental industry for over 20 years. She works with both of our doctors assisting them with dental treatment on our patients including fillings, extractions, crowns, implants, and dentures. Theresa grew up in Union and is a familiar face to all of our patients, and considers many of them to personal friends! Theresa attended NKHOC for Dental assisting to become a Certified Dental Assistant through the Dental Assisting National Board (DANB), and then furthered her education through the University of Louisville to become an Expanded Duties Dental Assistant (EDDA). Theresa is a proud mom of two daughters, Jennifer and Jessica, who are students at UK and NKU and enjoys spending her free time riding horses, hiking, and spending lots of time outdoors!

Lea, Dental Assistant

Lea was born and raised in Union, and joined our team in 2013. As a Dental Assistant she is responsible for helping all of the members of our team keep our office running smoothly! Lea assists our Doctors with treatment, our front desk team with scheduling, helps our hygienists with their patients, and looks after our sterilization area and our in-house lab. Lea attended the Dental Assisting Program at The Institute of Dental Technology and graduated in 2013. Our patients love Lea for her warm and caring manner and her infectious giggle! In her free time, Lea enjoys going to Reds games and spending time with her friends and family.


Preventive Care Plan

  • Two Annual Cleanings
  • Two Comprehensive Exams
  • Digital X-rays
  • 20% Discount On:
    • Cosmetic Procedures
    • Periodontal Procedures
    • Restorative Procedures
    • Root Canals
    • Crowns & Bridges
    • Plus More!!

Individual Plan $300 per year

Convenient Family Plans Available


As the premier dental office serving Union and its surrounding areas, we are committed to building a long lasting relationship with you, your family, and the rest of our community.

Our suite of comprehensive dentistry includes general and preventive care, pediatric dentistry,  dental implants, laser treatments, Invisalign and Invisalign Teen clear aligners, Zoom! whitening, and CEREC single-visit crowns.

New patients are always welcome to join our Dental Care Family. Please feel free to contact our Union office to schedule an appointment.


We are your local CEREC dentist for single-visit tooth restorations. Why go to the dentist a second time if you don’t have to?

What is CEREC?Sirona-Cerec

CEREC is a technology for restoring damaged teeth, and this restoration can be completed in a single visit to the doctor’s office. It makes your teeth stronger and more beautiful, all while keeping your teeth looking natural. The restoration is metal-free, and the high-grade ceramic material is compatible with the natural tissue found in your mouth.

The CEREC Process

During your appointment, you and your doctor will discuss the details of the procedure and your doctor will answer any questions you may have. Your doctor will then apply a thin layer of reflective powder onto your tooth and will use a special 3D imaging camera to take a photo of your tooth. Using CEREC’s proprietary software, your restoration will be designed according to your tooth’s appropriate form and function. Then, CEREC will use diamond burs to create your restoration out of a piece of ceramic. Finally, the ceramic restoration is bonded to your tooth using state-of-the-art adhesive dentistry.

Why Choose CEREC?

There are many advantages of using CEREC over traditional crown technology.

  • Time: CEREC crowns are made in one visit, saving you considerable time away from your job and family.
  • Comfort: With CEREC, there is no need for a temporary crown, eliminating significant potential discomfort.
  • Aesthetics: The strong, tooth-colored ceramic materials of CEREC restore your teeth to their natural strength, beauty, and function, and closely match the composition of your natural tooth structure.
  • Strength: Milled ceramic is stronger than the traditional method of layering and pressing, so your smile will stay beautiful for years!
  • Fillings: CEREC material and technology can also be used for fillings. Since these fillings are made out of porcelain, they are more durable than white composite fillings.

Flossing Step 1

Wind about 18 inches of floss around your fingers as shown. Most of it should be wrapped around one finger, and as the floss is used, the other finger takes it up.

Flossing Step 3

Holding the floss tightly, gently saw the floss between your teeth. Then curve the floss into a C-shape against one tooth and gently slide it beneath your gums.

Flossing Step 2

Use your thumbs and forefingers to guide about one inch of floss between your teeth.

Flossing Step 4

Slide the floss up and down, repeating for each tooth.

Brushing Step 1

Place your toothbrush at a 45 degree angle to your gum.

Brushing Step 3

Brush the outer, inner, and chewing surfaces of each tooth.

Brushing Step 2

Brush gently in a circular motion.

Brushing Step 4

Use the tip of your brush for the inner surface of your front teeth.

Derringer Dental Care & Rejuvenation participates in the Relay For Life event at Ryle High School in Union, KY.


Derringer Dental Care & Rejuvenation participates in the Color Run event in Cincinnati, OH.