David Clark, DDS & Rafael Bustamante, DDS

Dr. David Clark is the director of Bioclear Learning Centers International. He holds 36 patents internationally integral to the Bioclear Method and Bioclear Matrix System. Dr. Clark has developed the Bioclear Matrix System that promises a real advancement for placement of biologically appropriate, esthetically pleasing direct composite restorations for treating minimally invasive Class II preparations, diastema closure, and black triangle elimination combined with papilla regeneration, and traditional anterior composites.
He is a 1986 graduate of the University of Washington School of Dentistry and maintains a private practice in Tacoma, WA.

Dr. Bustamante graduated from the University of Lethbridge in 2000 with a degree in Biochemistry and received his Doctor of Dental Surgery degree from the University of Alberta in 2004. He adopted the use of the dental operating microscope in early 2005. He is certified in all levels, has completed the Master Track Accreditation and is on the Faculty at the Bioclear Learning Center. In a joint venture with CRD, he has supported the formation of the first Bioclear Study Club in Canada. He has participated in many virtual and live courses to clinicians from all over the continent introducing and teaching the Bioclear Method to them.
He thrives on the quest for exactness in restorative dentistry and he feels most fulfilled when restoring teeth using the Bioclear Method or when performing either surgical or non-surgical endodontics. When he is not obsessing over tenths of a millimeter under the microscope, he is volunteering in the community, grilling anything over a roaring fire, reading a non-fiction book or enjoying a quiet evening with his wife and children.
Featured In-Person Courses
Destination CE
CRD destination courses are a fantastic opportunity for dental professionals to connect with industry-leading speakers, colleagues and friends to learn, network and share ideas. Take a trip with Dentistry's top key opinion leaders to experience the best dental CE that always keeps the patient's best outcomes in mind.
Online CE
CRD is committed to supporting dental professionals with access to online courses that fit their schedule, educational needs and interests. Experience the convenience of quality online continuing dental education that features Dentistry's top key opinion leaders in live-streamed and on-demand formats.
In-Office CE
Bring group training directly to your office! Mini Clinics are free, high-energy, interactive in-office sessions with your CRD Clinical Advisor. Mini Clinic courses provide you and your staff a refresher on dental best practices, techniques and procedures. You'll earn 1 CE credit per topic in the convenience of your office.

Clinical Research Dental is an Approved PACE Program Provider by the Academy of General Dentistry. The formal continuing education programs of this program provider are accepted by the AGD for Fellowship/Mastership and Membership Maintenance credit. Approval does not imply acceptance by a state or provincial board of dentistry or AGD endorsement. The current term of approval extends from 1/1/2023 to 12/31/2026 and the Provider ID # is 208086.