What adjustment could improve comfort of an RPD?

Smoothing rough edges is a crucial adjustment for enhancing the comfort of a removable partial denture (RPD). Rough edges can cause irritation to the oral tissues, leading to discomfort or soreness during wearing. When the edges of the RPD are smoothed, it reduces friction against the soft tissues of the mouth, allowing for a more comfortable fit and reducing the risk of ulceration or inflammation in the gums and oral mucosa. This adjustment can significantly improve the overall experience of the patient with the RPD by ensuring that the prosthesis does not cause discomfort during normal activities like eating and speaking.

Other adjustments, like increasing the thickness of the base or shortening the clasps, may not address immediate comfort issues and could even create different problems, while changing the color of the material is primarily aesthetic and does not impact the functional comfort of the denture. Therefore, focusing on smoothing rough edges directly addresses a common source of discomfort for RPD wearers.