Which of the following is a benefit of using precision attachments in dentures?

Using precision attachments in dentures significantly enhances the retention and stability of the prosthesis. These attachments are designed to create a more precise fit between the denture and the abutment teeth or implants, which helps to improve how securely the denture sits in the mouth. The enhanced retention reduces movement and displacement of the denture during function, providing the patient with greater comfort and confidence while eating and speaking.

The precision offered by these attachments allows for an improved distribution of forces during function, which can positively influence the longevity of the prosthesis and the health of the supporting structures. This level of stability is particularly important in partial dentures where natural teeth and gums may be involved, as it minimizes the risk of movement that could lead to discomfort or damage.

The other options, while they may have some elements of truth, do not accurately represent the primary benefits of precision attachments. They do not generally reduce fabrication costs, allow for excessive tooth movement, or make repair easier. In contrast, the outstanding advantage of retention and stability is what makes precision attachments highly favored in prosthodontics.