dental assistants, dental hygienists and dental technicians are all good people
I wonder how the world will be without them
Agreed.   Their  educational, clinical and therapeutic services are essential to modern life.
I hardly can stand the sight of blood thats why i didn't study any of those
Psychology is the science of behavior and mind, and might be of assistance.
very true
History of psychology
Today, psychology is defined as "the scientific study of behavior and mental processes." Philosophical interest in the human mind and behavior dates back to the ancient civilizations of Egypt, Persia, Greece, China, and India.
Overview.
Psychology borders on various other fields including physiology, neuroscience, artificial intelligence, sociology, anthropology, as well as philosophy and other components of the humanities. The history of psychology as a scholarly study of the mind and behavior dates back to the Ancient Greeks.
Dental assistant
Dental assistants (also known as dental nurses) are members of the dental team. They may support a dental operator (such as a dentist or other treating dental auxiliary) in providing more efficient dental treatment. "Dental assistants" are distinguished from other groups of dental auxiliaries (such as dental therapists, dental hygienists and dental technicians) by differing training, roles and patient scopes.
History.
History The first dental assistant.
The first dental assistant in modern history is believed to trace back to 1885