The only purpose for a general dentist with no specialty training in an accredited university program to advertise as a 'specialist' is to distort the limit of their dental education and provide dental treatment beyond their expertise for financial benefit.  Should a family practice physician advertise as a thoracic surgeon?  Should a middle school science teacher advertise as university professor in chemistry?  Dentistry is lacking ethics and integrity, and falsification and prevarication of dental eduction and specialty training will further the spread of overtreatment by unqualified practioners.  Protection of the people is your civic duty.  Protection happens when the truth is not blurred.  A dentist who takes a weekend course is not a specialist.   They have a certificate and not a specialty license.  They gained CE credit, not a specialty degree.