Thomas W. Mercer, DDS
Shirley D. Mercer, DDS
Creating Beautiful Smiles
Call: (909)980-5558
  • Creating Beautiful Smiles

  • Beautiful Natural Results

  • Experts
    You Can


Rancho Cucamonga Dentist Dr. Thomas & Shirley Mercer offers quality dental care.

Rancho Cucamonga Dentists – Dental Office of Thomas W. Mercer, DDS & Shirley D. Mercer, DDS

Rancho Cucamonga dentists, Thomas W. Mercer, DDS, and Shirley D. Mercer, DDS, are a husband and wife team that have been serving the Rancho Cucamonga area with a family-oriented cosmetic dental practice since 1985.

When you visit our Rancho Cucamonga dental office, your smile is our top priority. Drs. Thomas and Shirley Mercer and our entire team are dedicated to providing you with the personalized, gentle care that you deserve. We are a comprehensive care dental office in Rancho Cucamonga and see patients from age 3 to 103. In addition to the gentle dental care you will receive, we are an affordable dentist so it is gentler on your wallet as well!

Our practice is laser certified, Invisalign certified, and ZOOM! Whitening certified. We offer every treatment from simple cleanings and checkup exams to more complex procedures like root canals, cosmetic dentistry, and laser dentistry. Our patients enjoy the comfort and convenience of only having to go to one dentist in Rancho Cucamonga to get the treatment they want and deserve.

At our Rancho Cucamonga dental office we use the finest materials and latest techniques to give patients beautiful healthy smiles in a relaxed, caring atmosphere. We have nitrous oxide (laughing gas) for the fearful patients. Many times the laser can be used to do fillings with no shot and no drill. All our fillings and crowns are tooth-colored and contain no mercury.

  • New Patients Welcome
  • Immediate Emergency Care Available
  • Evening Appointments Available
  • Most Insurance Plans Accepted
  • Low Radiation Digital X-rays
  • General and Cosmetic Dentistry
  • Habla Español
  • Our Services
  • Affordable Dentistry

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Patient Educational Videos

Part of our commitment to serving our patients includes providing information that helps them to make more informed decisions about their oral health needs.  This website is a resource we hope you’ll find both useful and interesting.

Contact Us (909) 980-5558 or Schedule You Appointment Online Today!

We genuinely hope this site is helpful to you in learning more about our practice, dental conditions and treatments, dental recommendations, and more.

Please browse through our website and be sure to give us a call if you have any questions or would like to schedule an appointment.


Advanced Dentistry
by Drs. Mercer & 
9333 Baseline Road, Suite 200
Rancho Cucamonga, CA 91730







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Mercer Dentistry
9333 Baseline Rd, Suite 200 Rancho Cucamonga, CA 91730
Phone: (909) 980-5558 URL of Map