For which of the following conditions is debonding most commonly a problem?

Debonding is particularly problematic in resin bonded bridges, which rely on adhesive bonding to attach the prosthesis to the existing tooth structure. This technique uses a resin cement that is designed to bond to both the metal or porcelain of the bridge and the dental enamel or dentin of the abutment teeth.

The integrity of this bond is crucial for the long-term success of the restoration. Factors such as moisture contamination during placement, insufficient surface preparation, and the mechanical stress during function can lead to debonding. In contrast to other dental procedures listed, resin bonded bridges are specifically vulnerable to these issues, as they depend heavily on the adhesive technology and proper clinical technique.

Fixed partial dentures, while they can also experience failure, are typically cemented using traditional luting agents that are less prone to debonding issues compared to the adhesive systems used in resin bonded bridges. Amalgam restorations and endodontic treatments do not face the same types of debonding problems as these options involve different materials and bonding mechanisms that are not adhesive-based in the same way.