Welcome to the Office of Our Plano Dentist

At Preston Park Dental our mission is to create and maintain beautiful smiles that last a lifetime! This is why we offer our very best relational care, special skill, and knowledgeable judgment. This with the latest in dental technology: digital, laser and cadcam technology. Plano dentist, Dr. Diana O'Quinn can provide the care you need.


Please take a look at our site to learn more about Dr. Diana O'Quinn and our practice to see how we can be your dental care team. We know that the first step towards a beautiful smile begins with selecting a dentist that you can trust. Don't hesitate to give us a call. We are here to help. If you have any questions, or if you would like to schedule an appointment.


Whether you desire a routine checkup, porcelain or bonded veneers, crowns in a single office visit, dental implants, dentures or more complicated smile and bite transformations, Preston Park Dental will make a plan that uniquely fits your short and long term goals. Our friendly service oriented staff will ensure your visit to the dentist is informative and comfortable. We care about our patients and are here for you. Contact us today at (972) 519-1990.

Our Services
  • General Dentistry

  • Smile Makeovers

  • TMJ Treatment

  • Dentures

Appointment request
Need an appointment with a dentist in Plano ? Requesting an appointment at our Plano, TX family and cosmetic dental office is now easier than ever. Fill out the form below and we'll contact you to find a time that fits your schedule. Start your journey towards a beautiful smile with us today!
Patient Name*
Phone Number*
Email Address
Are you a current patient?
Best time(s) to call?
Preferred Appt Date
Preferred Appt Time
Describe the nature of your appointment or any other comments
Contact Us

Have a question or comment? Fill out the Contact Us form and we will be in touch as soon as possible.

Preston Park Dental
Diana L. O'Quinn, DDS
4909 W. Park Blvd
Plano TX 75093
Phone: (972) 519-1990
Email Address