Expert Team

Learn on your own, but not alone.

From our highly-experienced founder to our team of proven experts, we are here to help you be successful.

Dan O'Rourke

Founder and CEO

Dan O'Rourke

Founder and CEO

Dan O'Rourke has been involved in dentistry for the past 40 years. As the CEO and Founder of Dentistry’s Optimal Model, he is passionate about helping dentists experience the personal and professional benefits of creating an extraordinary dental practice. Since 1984, he has owned O’Rourke Dental Studio. He is a past founder of The Texas Center and faculty member at the OBI Foundation for Bioesthetic Dentistry. Throughout his career, he has worked with many industry leaders while lecturing, presenting hands on training courses, publishing numerous articles, and creating materials and resources. After two decades of studying and teaching about health in dentistry, he believes the greatest gift he can gift back to the dental profession is to help practitioners transform their practice and their patient’s lives through Dentistry’s Optimal Model.

As a lover of fly-fishing, upland game hunting, skiing, and golf, Dan and his wife of over three decades live in Bozeman, Montana. They have two grown children.

Dr. Randy Lais

Clinical Director

Dr. Randy Lais

Clinical Director

Dr. Lais graduated with honors from the University of Missouri at Kansas City School of Dentistry. He was additionally honored by selection in Omicron Kappa Upsilon, a national dental honors society that promotes and recognizes scholarship and character among students of dentistry. He served active duty for three years in the U.S. Navy Dental Corps where he had the opportunity to serve rotations under board-certified specialists in the areas of oral surgery, endodontics, periodontics, and prosthodontics. He also studied at the Texas Center to improve the application of Dr. Bob Lee’s Bioesthetic Dentistry principles as well as minimally invasive techniques for restoring the occlusion to the model of health as nature intended.

Dr. Lais focuses on long-term health and esthetics for his patients versus the disease-repair cycle so common in dental practices. For more than 18 years, Dr. Lais has been working with the Academy of Interdisciplinary Dentofacial Therapy Study Group, a group of like-minded professionals who are dedicated to providing comprehensive dentistry focusing on health and esthetics. Several times a month the study group meets to discuss patients and give shared opinions in order to make sure the best treatment plan is agreed upon before any irreversible treatment has been provided to the patient. Dr. Lais believes Dentistry’s Optimal Model of Health as seen in nature is the most predictable model of restoring patients to optimal comfort, function, health, and long-lasting natural beauty.

He and his wife, Jackie, have lived in Northwest Arkansas since 1996. In his spare time, Dr. Lais enjoys playing golf, traveling and spending time with his family and friends.

Joy O'Rourke

Executive Director

Joy O'Rourke

Executive Director

Joy O’Rourke is the Co-Founder and Executive Director at Dentistry's Optimal Model. She is also Co-Owner and CFO of O'Rourke Dental Studio. Joy graduated from Mount Waschusett College, Magna Cum Laude, as a Registered Nurse and has specialized in ICU and Oncology the past 20 years. Joy enjoys expanding her knowledge, both personally and professionally, allowing her to give back and educate others. Caring for and serving humanity is her true passion.

Joy has proudly raised two children, Hilary and Daniel. She enjoys spending quality time with her husband and family, loves the arts, painting, fly fishing, golfing, boating and is an animal lover. Joy thoroughly enjoys exploring the great Montana outdoors and all that nature has to offer.

Dr. Thomas Larkin

Oral Systemic Specialist

Dr. Thomas Larkin

Oral Systemic Specialist

Dr. Larkin is a native of Omaha Nebraska and a graduate of Creighton University School of Dentistry. Having worked both as a clinician in private practice and as a professor in two Universities, Dr. Larkin brings a unique blend of common sense and practicality to his work. He has written two books on dental practice management and two on oral wellness.  After attending the Bale/Doneen preceptorship in 2013, he began to develop curriculum to help dentists incorporate advanced preventive protocols centered around the science of the oral-systemic connection.

He is a popular podcaster and the founder of Proactive Oral Wellness (powhygiene.com), a coaching and implementation web site for the most advanced approaches in preventive dentistry. He is also a faculty member of The Dental Success Network.

Dr. Lou Chmura

Orthodontic Airway Specialist

Dr. Lou Chmura

Orthodontic Airway Specialist

Dr. Chmura has been a practicing orthodontist since 1987. Throughout his career, he has published numerous book chapters and articles as well as delivering over 90 presentations on Orthodontic Approaches to Sleep Apnea. He is a Diplomate with the American Board of Orthodontics, a Fellow of the Advanced Proficiency Academy of Laser Dentistry, and a member of the American Academy of Dental Sleep Medicine.

He loves to help people “see possibilities” and achieve success. In his free time he enjoys traveling, reading, golf, thinking, planning, organizing, and spending time with his wife and family.

Dr. Cristin McPherson-Lewis

Vivo Airway Specialist

Dr. Cristin McPherson-Lewis

Vivo Airway Specialist

Cristin McPherson-Lewis graduated from The University of Tennessee, School of Dentistry in 1995 and purchased Dr. Don Reed's practice in 1996. In 2004, she and her late brother, Dr. Will McPherson, purchased their father's practice, James W. McPherson, Jr., DDS - making it McPherson Wallace Dentistry and continuing their father's legacy of premiere dentistry in Nashville.  In 2014, the practice was renamed to BiTE Dentistry.

Dr. McPherson-Lewis is a Vivo Airway Specialist and has been recognized in the Guide to America's Top Dentist, 2010 Edition. She is a member of the Nashville Dental Society, the Tennessee Dental Association, the American Dental Association, the American Academy of Cosmetic Dentistry, the Academy for Sports Dentistry, and the Dental Organization for Conscious Sedation. Dr. Lewis is also an active volunteer for the Interfaith Dental Clinic.

Beyond her career, she loves cooking, painting, and being the proud mother of aspiring hockey star Parks and aspiring princess Sara Mac.  Considering it a great honor, she holds the current title of Team Dentist for the Tennessee Titans and previously the Nashville Predators.

Dr. Steven Schluentz

Sales and Mindset Expert

Dr. Steven Schluentz

Sales and Mindset Expert

Dr. Schluentz graduated from the University of North Carolina Chapel Hill with his Doctor of Dental Surgery degree. To help him create a patient-first private care practice, he went on to complete the Management Program at The Schuster Center in Scottsdale, AZ.

While attending a seminar at the Spear Institute he developed a passion for treating dental occlusion. As a result, he entered a 2 year residency at the renowned Texas Center for Occlusal Studies, a program known for its emphasis on treating the entire oral system. Fewer than 500 dentists world-wide are certified to offer this type of dentistry to their patients. He is a member of the American Dental Association, the Academy of General Dentistry, the North Carolina Dental Society, a Schuster Center Performance Coach, and a Mentor at the Schuster Center.

Dr. Schluentz is a leading mindset consultant for Bob Proctor and host of the Dental Practice Freedom Radio podcast. He is also the creator of Dental Sales Secrets – a course designed to help providers increase comprehensive case acceptance. His dental practice is located in Hendersonville, North Carolina.

In his free time, he enjoys exploring the amazing food Western North Carolina has to offer and reading books at a local coffee shop.

Barb Stackhouse

Profit First Business Management

Barb Stackhouse

Profit First Business Management

For the last 14 years, Barb Stackhouse has helped over 400 dentists add thousands in revenue to their practice every month and boost profits by 5-10%. She’s an expert at cutting back expenses and increasing profit margins without compromising patient care. Her clients keep more money in their pockets, allowing them to finally fulfill their dreams for themselves and their families. Her extensive background in the dental industry gives her an advantage and deep understanding about the ins and outs of running a profitable, highly successful dental practice.

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