Two decades back dental surgery was a growing branch but now it has grown up well. Previously dental surgeons used to prefer extraction of tooth but now they are being paid to save the tooth. In order to achieve they should be able to assess, diagnose the disease and treat accordingly. To differentiate two similar dental diseases one should know the pros and cons of the specific disease which will help the students and clinicians. I would like to thank my mentors Drs (Profs) N Sridhar Shetty and Amita Hegde for the knowledge given to me by them. There is always some scope to improve upon and for that healthier suggestions are always welcome.I am thankful to Shri Jitendar P Vij, Chairman and Managing Director, Jaypee Brothers Medical Publishers, for giving me the opportunity to write this book.
INTRODUCTION Primary teeth are often called deciduous teeth. The word “deciduous” comes from a Latin word “decidere” – meaning, “to fall off”. Deciduous teeth fall off or are shed like leaves from a deciduous tree. These teeth are shed and then replaced by permanent successors. This process of shedding the deciduous teeth and replacement by the permanent teeth is called exfoliation. Exfoliation begins 2 or 3 years after the deciduous root is completely formed. At this time the root begins to resorb at its apical end and resorption continues in the direction of the crown until the entire root is resorbed and the tooth finally exfoliates.[/mks_toggle]
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