Why does any single patient accept multiple complete dentures made from variously different sources of producing approaches?

In this extra article, five different dental technicians have made dentures on identical single patient from their own sources of approaches, and their background theories are discussed in their logical terms. Even though their procedures are different from one another, this patient is satisfied with dentures made respectively. Why does this happen? In complete denture therapy, varieties are many in procedures and theories. In the course of this discussion, the author has a fundamental question why differences of complete denture fabrication procedures do exist. The author feels something wrong around the clinical world of complete denture therapy where individual theories of dentists are presented as a matter of course. In this regard the author has an experience to publish a report by conducting randomly assigned clinical trials in order to obtain evidences of occlusal schemes in favour of complete dentures, while searching an objective scientific thinking that should be founded on clinical researches 1. Now in this article, based on this experience, it will be demonstrated in the way of literature reviews why any complete denture wearer is coherently satisfied throughout the different dentures that have been fabricated by five different dental technicians.