This book contains a brief account of various aspects of oral physiology. The clinical significance of these basic facts has also been described concisely. The book is focused on undergraduate dental students. Contents: Chapter 01: The Tooth Chapter 02: Some Facts about Dental Tissues Chapter 03: Organic Matter of Teeth Chapter 04: Mineralisation Chapter 05: The Saliva Chapter 06: The Dental Plaque Chapter 07: The Calculus Chapter 08: Halitosis Chapter 09: Mastication, Deglutition and Swallowing Chapter 10: Oral Hygiene and Toothbrushes Chapter 11: The Dentifrices Chapter 12: Vitamins-The Micronutrients Chapter 13: Hormones-The Indigenous Dictators Chapter 14: Taste Chapter 15: The Fluorides-Friends or Foes Chapter 16: The Sensations and the Pain.