Meet Your Team

Abelardo Valdes
General Dentist

Coming Soon

Mark Slivka

About Me

Dr. Slivka says, “I enjoy creating a fun, friendly, and family atmosphere while providing the state-of-the-art in orthodontic therapy and dentofacial orthopedics. It’s the art of creating beautiful smiles and building lifelong relationships.”

After graduating from Ohio State University, Dr. Slivka received his Dental Degree from the College of Dentistry at Ohio State University. He received his Orthodontics Certificate from the New York University College of Dentistry. To keep abreast of cutting edge technology, he’s a member of the American Dental Association the American Association of Orthodontists, the Pacific Coast Society of Dentists and the American Board of Orthodontics.

Dr. Slivka says, “In my free time I enjoy reading, writing, sculpture, surfing, and other outdoor adventures like white water rafting.”


  • B.S., Human Nutrition–The Ohio State University
  • D.D.S.–College of Dentistry, The Ohio State University
  • Orthodontics Certificate–New York University College of Dentistry


  • American Dental Association
  • American Association of Orthodontists
  • Pacific Coast Society of Dentists
  • American Board of Orthodontics
Krystal Miles
D.D.S., M.S.

About Me

Dr. Miles says, “I desired a career in the health care profession, and it was between medicine and dentistry. I chose dentistry to have more control over my work environment. I love my job, I am ALWAYS happy, and always learning new techniques. I enjoy meeting new patients–every case is new and different.”

After graduating from the University of Arizona, Dr. Miles received her Dental Degree from the University of Nebraska School of Dentistry. She was awarded her M.S. in Periodontics from the Ohio State University School of Dentistry. She’s a member of the American Academy of Periodontology, the American Dental Association, the Arizona Dental Association, and the Southern Arizona Dental Association.

Away from the office, Dr. Miles enjoys scuba diving, playing handball, and volunteering at the zoo.


  • B.S., Chemistry–University of Arizona   
  • D.D.S.–University of Nebraska School of Dentistry
  • M.S., Periodontics–Ohio State University School of Dentistry


  • American Academy of Periodontology
  • American Dental Association
  • Arizona Dental Association
  • Southern Arizona Dental Association

Gentle Dental

5860 W Arizona Pavilions Dr Suite 100
Tucson, AZ 85743

Request an Appointment

View Our Offers

Enroll in Discount Plan

Office Hours:

Monday8:00 AM to 5:00 PM
Tuesday9:00 AM to 6:00 PM
Wednesday9:00 AM to 6:00 PM
Thursday8:00 AM to 8:00 PM
Friday8:00 AM to 5:00 PM
Saturday9:00 AM to 3:00 PM (By Appt)