The remaining teeth, usually canines and premolars, serve as the primary abutments, bearing the load of the prosthesis. They are meticulously placed on the mesial or distal surfaces of the abutment teeth, depending on the specific design and occlusal scheme.
Kennedy Class 2 RPD Lingual Bar Design and Implementation
Material Selection and Occlusal Considerations. Foundations of Kennedy Class II Anatomy and Biomechanics Before delving into design specifics, it is essential to understand the anatomical and functional landscape that defines a Class II situation.
This is often achieved through the use of a mesial rest combined with a circumferential clasp assembly, which helps to direct forces more vertically. The strategic placement of an indirect retainer is non-negotiable; it is typically positioned on the opposite side of the fulcrum line, often utilizing a mesial rest on a canine, to counter the lifting action of the distal extension base and stabilize the prosthesis against horizontal movement.
Kennedy Class 2 RPD Lingual Bar Design and Best Practices
Rests are critical elements, serving to direct forces along the long axis of the abutment teeth and preventing vertical displacement of the denture base. The primary edentulous span typically involves the molar region, which is critical for masticatory function and force distribution.
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