Condylar head inclination proved to be the most significantly correlated condylar characteristics to facial morphology. Hypodivergent pattern is dominant in Class II malocclusion. Symphysis width dimension also vary in different Class II malocclusion.SBL-PNS, Y -axis, Facial -Axis, PFH/AFH X100, Bjork sum and Symphseal width are significant parameters which discriminate between groups. Horizontal facial morphology was seen in 45 % of cases, vertical 8.3% and normal was 46.7%. Facial types of the Class II patients vary and it depends on the position of the condyle in the fossa. It can be anteriorly or posteriorly placed, depending upon the type of jaw bases. Glenoid fossa position also changes; it can be cranially or caudally placed in class II patients depending upon skeletal facial types. Symphysis width was strongly related to the direction of mandibular growth. Symphysis width varies in different types of facial types. Generally it is wider in low angle subjects and narrow in high angle Class II preadolescent patients.

Orthodontics and Dentofacial Orthopedics is the first speciality in dentistry. The objective of this textbook of Orthodontics is to provide a comprehensive review of this subject that is accessible to students especially post-graduates. Every-day we learn something new through our clinical exposure in this field. With time and experience orthodontists learn many technique adjuncts that work for them and which facilitate the clinical treatment of their patients. A number of these adjuncts are published in different journals. In this book I tried to collate some of these clinical tips. Our goal has been to put information into a perspective that facilitates clinical use in a rational way. In each chapter, basic background information that every orthodontist need is covered in detail. In addition, the book is supplemented with extensive content that will help the post-graduates throughout the course and also in the examination. I hope that this component of the book will be of value to the graduate and postgraduate student.