Dental prostheses, including fixed crowns and fixed partial dentures, are fabricated to become a functional part of a patient's anatomy.  Although the dentist and patient should have assurance regarding the composition of the prosthetic, which I believe already exists in the VA statutes, assurance regarding the patient's functional anatomy is complicated and dependent upon many factors.  Although well meaning, this proposal is impractical given the multitude of variables that contribute to human anatomy and physiology. Respectfully submitted by Guy Levy.