Advances in surgical and medical interventions and therapeutics continue apace and raise issues in relation to their appreciation, including their respective advantages and disadvantages, within the context of modern dentistry. The aim of this book is to provide a basis for the understanding of modern medicine and surgery on oral health and oral health care, and to help dental health workers deliver safe care within a framework of informed consent. In this 7th edition, many new topics have been added, which range from the additional of new medical disorders, relevant developments in pharmacology, including the use of biological therapies, social issues such as elder maltreatment and care of other vulnerable patients, and new national and international guidelines.