Smile Hi Dentistry
Joyce A. Duff, DDS


Our People Are Our Practice

About Joyce A. Duff, DDS

Dr. Duff established Smile Hi Family Dentistry in 1992. As a general dentist she offers gentle, personalized dental care. She is impassioned about helping her patients achieve and maintain a healthy and beautiful smile. She is a skilled practitioner with extensive continuing education, training, and experience.



Jacie has been part of Dr. Duff’s team for over 17 years and has been a practicing dental hygienist for over 20 years. Jacie graduated from the Colorado Northwestern College Dental Hygiene Program in 1998. She actively pursues continuing education in dentistry to ensure she is providing the best care for her patients. Jacie’s patients appreciate her gentle care and her undivided attention. Jacie takes her time to get to know her patients to provide them with the quality care to enhance their health, confidence and overall well-being.


Front Office Coordinator

Kristine is a Colorado native that has lived in the Denver Metro area most of her life. She has been working for Dr. Duff since 2015 and has been serving and caring for patients for most of her career.
Prior to joining Smile Hi Family Dentistry, Kristine worked as a home health care professional where she provided in-home personalized care for her clients. Working with a large client base, she has developed a strong empathy for her customers and quickly develops a rapport with each of her clients. In meeting the needs of so many patients, she rapidly understands the needs and requirements of each patient and ensures that those needs are met.
As Practice Manager, Kristine readily exhibits these skills and makes patients her highest priority, assisting them in receiving the best care possible. It is her responsibility to assist in providing the highest quality care for patients, in a safe, comfortable, and courteous manner. She prides herself on her ability to listen and empathize with the patient and identify their needs, whether helping with insurance, managing appointments, or any other concern patients may have to ensure their satisfaction.
Kristine's responsibilities:

  • Help patients establish and manage appointments.
  • As the first person you meet coming into the office, establish a warm welcome and efficient service.
  • Listen to and understand a patient's need and identify the best possible care.


Dental Assistant

Rima has been Dr. Duff’s chairside dental assistant for over 20 years. She is skilled in all of the dental procedures, and she is dedicated to all of her patients. She is a good listener who believes it is her job to address patients’ concerns. She is a compassionate person who enjoys helping others. Rima is fluent in both Russian and English.
Rima’s responsibilities:

  • Make patients feel at ease
  • Help Doctor provide relief to patients
  • Take X-rays
  • Sterilize and disinfect instruments and equipment
  • Prepare materials for making impressions and restorations


Business Development Support

Allyson is a Colorado native that was born and raised in Aurora. She has also been a patient of Dr. Duff since she was two years old. Allyson has become our newest team member, joining us at the end of 2017. She fits right in at our office and we love having her as part of our team. She is very artistic and has taken over making our handmade birthday cards for our patients. She also works alongside Kristine in running our front office, doing a lot of the behind-the-scenes things that make us such a great team.
Allyson’s responsibilities:

  • Create new patient letters
  • Create birthday cards
  • Call patients to schedule appointments

Welcome to Our Office

Dr. Joyce A Duff pursues continuing education opportunities to keep abreast of new research and changing technology. She is committed to learning and staying at the forefront of the dental industry.