What is one of the indications for a functional reline of an RPD?

A functional reline of a removable partial denture (RPD) is indicated when there are issues with the fit or stability of the prosthesis due to changes in the supporting tissues or movement of the components. This process is particularly relevant when there is movement of the RPD indirect retainers or the lingual plating, which can compromise the overall function and comfort of the denture.

When there is movement in these areas, it often indicates that the fit is no longer adequate, leading to functional issues such as discomfort or the denture becoming less effective in its role of distributing occlusal forces. A functional reline addresses these issues by adjusting the fit of the denture to more closely match the contours of the oral tissues, thereby improving retention, stability, and comfort during function.

Other options relate to different issues that do not directly indicate the need for a functional reline. For instance, excessive retention typically suggests that the denture may be too tight rather than indicating it needs a reline, and alignment of artificial teeth or integration of complete dentures pertains to other adjustments or considerations in denture management rather than the specific fitting issues resolved by a functional reline.