17th to 19th Century

• Consumers act rationally by


  Maximising their utility
• Producers act rationally by


  Selling goods/services in a way that maximises their profits
• Workers act rationally by


  Balancing welfare at work with consideration of both pay and benefits
• Governments act rationally by


  Placing the interests of the people they serve first in order to maximise their welfare
• Rationality in classical economic theory is a flawed assumption as people usually don't act rationally
• Marginal utility


  The additional utility (satisfaction) gained from the consumption of an additional product
• If you add up marginal utility for each unit you get total utility
• PERSPECTIVES IN DENTISTRY
• HISTORY OF DENTISTRY (17TH, 18TH, & 19TH CENTURY)
• Doc. Zandra Mira Guiban-Filoteo
• DN-DEN 122 - Lec
• 1 of 9
• TRANS 01
• I. 17th Century
• A. Scientific Discoveries
• 1. William Harvey
• William Harvey's discovery


  Discovery of the circulation of the blood
• There is a presence of arteries and veins that is responsible for blood circulation
• Debunks Hippocrates' Humors
• Discovered by dissecting someone
• The blood flows indefinitely inside our body
• Heart to lungs and back to the heart then throughout the whole body
• William Harvey

  Effectively established the science of physiology
• 2. Edward Tyson
• Edward Tyson's discovery


  Found out that there is a circular flow of blood flow
• Heart to lungs and back to the heart (oxygenated blood) then throughout the whole body
• 3. Marcello Malpighi
• Marcello Malpighi


  Founder of histology
• Oral histology


  How the tooth is microscopically defined

  
• Discovery of the capillaries
• 4. Antonie van Leeuwenhoek
• Worked with Marcello Malpighi
• Antonie van Leeuwenhoek


  Invention of the microscope
• Tubules in the dentin
• Dissected a tooth

  
• Tubules are connected to the pulp
• Tubules contain innervation and blood vessels of the teeth

  
• When we pasta, tubules are going to be exposed
• When exposed, it will cause sensitivity
• In doing restoration, friction or heat must be minimized so px won't be sensitive