Our thanks go to our colleagues at the VU Univer- Preface to the Third Edition sity Medical Center and to those in other hospitals Reading through the prefaces of the two previous edi- who referred their patients to us. We are indebted to tions,we can say that much of what was said there still all colleagues who allowed us to use their MR images, holds. At the same time,however,much has changed. published or unpublished,making it possible for us to There has been immense progress in the technical present illustrations of nearly all known white matter possibilities of magnetic resonance and in the know- disorders. Two colleagues were particularly helpful ledge of genetic defects, biochemical abnormalities, and provided us with essential and unpublished f- and cellular processes underlying myelin disorders. ures: our friends Susan Blaser,from the Hospital for This immense progress has prompted us to embark Sick Children in Toronto,and Zoltán Patay,from the upon the enormous task of rewriting the previous King Faisal Hospital in Riyadh. edition and adding 40 chapters. In doing so we have Many people at the VU University Medical Center tried to cover most white matter disorders,hereditary have been of great technical help to us in producing and acquired,and to present a collection of images to high quality images and in providing secretarial illustrate the field to the fullest possible extent. This assistance. The contributions of these people are edition will therefore be more complete than the pre- mentioned separately in the acknowledgements.

A comprehensive guide for integrating pathology into a clinical setting. Pathological Basis of Oral and Maxillofacial Diseases presents the basic principles involved in disease mechanisms in an easy-to-understand way. By integrating recent advances in molecular, immunologic, and genetic understanding of oral disease, the book helps readers enhance their knowledge and its application in a clinical setting. This book is divided into nine sections, covering key topics such as inflammation, genetic diseases, and neoplasia, with contributions from over 50 international authors. Diagrams, clinical, radiographic, and histopathology images and tables supplement the text, and the editors have ensured a consistent approach throughout. Topics covered in Pathological Basis of Oral and Maxillofacial Diseases include: The influences of nutrition and the environment Cellular structure and function, causes and mechanisms of cellular pathology. Immunity and host defence mechanisms, immune dysfunctions affecting the oro-facial complex. Inflammation and inflammatory diseases of the oro-facial complex Human microbiome, with reference to dysbiosis in dental caries and periodontal diseases Oral manifestations of systemic diseases and the oral-systemic link and its impact on general and oral health Oral potentially malignant and malignant disorders that are a major threat to global public health. Bridging the gap in dental training programs from basic medical science in the initial years to clinical practice, Pathological Basis of Oral and Maxillofacial Diseases is an essential reference for dental students, trainees and practitioners seeking to grasp the pathological basis of disease and apply that knowledge to the oral and maxillofacial regions.