The importance of 'occlusion' in dental practice is based primarily upon the relationships that it has within these interconnected biomechanical systems. Proper dental care ensures that functional contact relationships are restored in harmony with both dynamic and static conditions. Maxillary and mandibular teeth should contact to allow optimum function, minimize trauma to the supporting structures, and allow an even load distribution throughout the dentition. Positional stability of the teeth is crucial if arch integrity and proper function are to be maintained over time. Hence, this book aims to aid in increasing the knowledge of the reader on this sumptuous topic, occlusion in fixed partial denture.