The gentle art of dentistry. Welcome to Powder River Dental Associates of Gillette, Wyoming. "The Gentle Art of Dentistry" is more than a logo, it is what we strive to deliver to our patients. Our professional team is dedicated to helping you achieve optimum dental health, through patient education and the latest advancements in technology. We provide individualized treatment plans to assist you in achieving your dental health goals. Powder River Dental has been serving the area for over 30 years. We have four dentists and two locations. We offer several payment options and file all insurance claims electronically.