Occlusal Plane Analyzer: A Customized Device for Determining the Occlusal Plane

Dentists have always faced the challenge of providing accord between function and esthetics. It can be said that for the success of complete denture prosthesis, arranging the teeth in correct plane of occlusion is pivotal. The orientation of the occlusal plane forms the basis for teeth arrangement conducive to satisfactory esthetics and proper function. The glossary of prosthodontic terms (July 2005)1 defines occlusal plane as ‘the average plane established by the incisal and occlusal surfaces of the teeth’. Generally, it is not a plane but represents the planar mean of the curvature of these surfaces. A plane is determined by at least three reference points that are not in a straight line. Anteriorly, occlusal plane helps in achieving esthetics and phonetics while posteriorly, it forms a milling surface. Functionally, the inclination of the occlusal plane is one of the key factors governing occlusal balance. Changes in the plane of occlusion will modify the physical and functional relationship of the oral musculature leading to an alteration in function, comfort and also the esthetic value. Hence, the occlusal plane, lost in patients rendered edentulous, should be relocated if complete dentures are to be esthetically and functionally satisfactory.