Dr. Robert S. Holyoak, DMD
A half-century of independent, honest dental care for Sun City and the West Valley. Dr. Holyoak is more than a clinician, he is a pillar of the community, rooted in Idaho values and clinical excellence.

The Personal Narrative
Roots in IdahoRoots in Idaho
Dr. Holyoak grew up in Burley, Idaho, where his parents were educators who also ranched and farmed in south central Idaho. The combination of teaching and working the land shaped his temperament, patient, practical, and unhurried.
Dentistry runs in his family: he has two brothers who practice dentistry in the valley, and his own household has continued the tradition. Both of his sons became dentists, and both of his daughters became dental hygienists. Dinner conversations at the Holyoak family table have, for decades, drifted naturally toward bonded composites, periodontal protocols, and the curious resilience of the human tooth.
Outside the Office
Dr. Holyoak and his wife Jean live a full life outside dentistry. He spends time with his children and grandchildren, tends to his horses and mules, and works on his small farm in Mesa, a return to the agrarian rhythms he grew up with in Idaho.
Background & Expertise
Half a century of clinical experience
Combining rigorous academic training with five decades of hands-on practice.
Premier Training
A BYU alumnus, Dr. Holyoak graduated from Oregon Health & Science University (OHSU) in 1974, a top-ranked institution that provided a rock-solid foundation in restorative dentistry.
Senior Dentistry
With over 50 years in Sun City, he has mastered the complexities of senior care, from medication-induced oral changes to the long-term monitoring of periodontal health.
Technology Filter
He adopts what improves outcomes, such as digital radiography, and declines what is mostly marketing. "Does it actually help the patient sitting in this chair?"
My patients have an honesty, integrity, and appreciation that can't be found anywhere else.
In His Words
Philosophy & practiceAn independent practice in a corporate era
Many practices that look independent are owned by national chains or private-equity groups operating under quiet management agreements. Dr. Holyoak chose not to go that way. Copper Sky Dental remains locally owned, which means the dentist who recommends a crown is the same dentist who places it, and no spreadsheet at a regional headquarters is dictating how many procedures need to happen this quarter.
That independence is the reason he is comfortable offering free second opinions on treatment plans patients have received elsewhere. Sometimes the recommended plan is exactly right. Sometimes a less invasive approach will work. Patients are entitled to know which, and they should not have to pay for that conversation.
How he approaches senior dental care
For seniors, the right answer is often not the most aggressive intervention. Sometimes it is a thoughtful watch-and-wait. Sometimes it is a simpler restoration that will reliably last another decade. Sometimes it is a frank conversation about which tooth is worth saving and which is not. Patients on fixed incomes especially appreciate a dentist who will tell them the truth and will not push procedures that do not deliver value.
Mentorship & continuity
In recent years, Dr. Holyoak welcomed Dr. Lisa Kubik into the practice. He introduced her to longtime patients personally, vouched for her judgment, and made room for her to develop her own clinical voice, so the standard of care he has built over 50 years now comes from two dentists who share it.
Experience personalized care
Experience the kind of unhurried, personalized dental care Dr. Holyoak has provided for 50 years. We are locally owned and committed to your long-term health.