tailieunhanh - Master Dentistry: Restorative Dentistry, Paediatric Dentistry and Orthodontics Volume 2: Restorative Dentistry, Paediatric Dentistry and Orthodontics_2

Most students need a textbook that will provide all the basic facts within a discipline and that also facilitates understanding of the subject. This textbook achieves these objectives and also provides test questions for the student to explore their level of knowledge. It is also important for students to achieve a 'feel for the subject' and learn communication skills. The book is designed to provide basic information necessary to pass an undergraduate examination in restorative, paediatric and orthodontic dentistry. It also expands on the core curriculum to allow the motivated student an opportunity to pursue the subject in greater detail. The information is presented in such a way as to aid recall for. | Tooth development and eruption 169 Management of the child patient 170 Caries 173 Tooth discoloration 179 Tooth surface loss wear 184 Endodontics 187 Self-assessment questions 193 Self-assessment answers 195 Overview The successful practice of paediatric dentistry requires an intimate knowledge of normal child development and behaviour as well as the technical and clinical skills that are necessary to work in a small mouth. The aim of every clinician who treats children should be to deliver that child into adolescence and young adulthood without fear and with tolerance for dental treatment. If that is achieved and in addition the young adult has an appreciation of the importance of oral health to overall general health then the hours spent in behaviour management and practical prevention will have been worthwhile. Tooth development and eruption Learning objectives You should know at what age primary teeth begin to mineralise at what age their root formation is complete and at what age they erupt know at what age permanent teeth begin to mineralise at what age their root formation is complete and at what age they erupt. Tooth development Tooth germs develop from the dental lamina which itself develops from the primary epithelial band. The dental lamina forms a series of epithelial buds that grow into surrounding connective tissue. The buds become associated with a condensation of mesenchyme and together they represent a tooth germ at its early cap stage of development. The epithelial bud becomes the enamel organ and the mesenchymal cells the dental papilla and follicle. The cells at the margin of the enamel organ grow to enclose some mesenchymal cells the bell stage of development. Histodifferentiation of the enamel organ now occurs into external and internal enamel epithelia stratum intermedium and stellate reticulum. On the lingual aspect of each primary tooth germ the dental lamina proliferates to produce the permanent successor tooth