Rests are critical elements, serving to direct forces along the long axis of the abutment teeth and preventing vertical displacement of the denture base. Biomechanical Strategies for Long-Term Success Mastering Kennedy Class II design involves a delicate balance between retention, support, and stability.
Biomechanical Strategies for Long-Term Success in Kennedy Class 2 RPDs
Guide plates, or direct retainers, are then adapted to engage undercuts on the abutment teeth, providing the necessary retention while allowing for controlled, path of insertion removal and placement by the patient. Denture Base: Replaces lost gingival tissue and occlusal surfaces.
For unilateral distal extension cases, a lingual bar is often the connector of choice, offering minimal tissue coverage and maximum patient comfort. 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 Best Practices for Retention, Support, and Stability
The design must counteract the rotational forces that occur during function, where the denture base moves gingivally under load, potentially causing trauma to the abutment teeth and residual ridge. The primary edentulous span typically involves the molar region, which is critical for masticatory function and force distribution.
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