Since the emergence of modern dentistry the study of dental occlusion has been a subject of major interest as it is known that clinical knowledge of dental occlusion is very important for clinical practice in all disciplines. A critical assessment requires a review of the historical evolution surrounding the concepts and theories of occlusion in formative …show more content…
Centric relation has been described by Davies and Gray , in three different ways - anatomic, conceptual, geometric. Anatomical definition is the most used one where the head of condyle is described to be in the superior most and fore most position in the fossa. Though it is debatable as some clinicians prefer the position to be midmost and some prefer rear most. Conceptual definition is the position of the mandible relative to the maxilla when the muscles that support the mandible are at their most relaxed and least strained position and this definition supports the concept of qualitative relationship between the jaw position and other joint elements. Geometrical definition describes the position of the mandible when head of the condyle is in the terminal hinge