What is the greatest concern associated with resin bonded bridges (Maryland Bridge)?

The greatest concern associated with resin bonded bridges, commonly referred to as Maryland Bridges, is debonding. These types of bridges rely on adhesive bonding to retain the pontic to the abutment teeth, which means that the success of the restoration is significantly influenced by the bond strength between the resin cement and the enamel or dentin.

In clinical practice, factors such as moisture contamination, variations in tooth preparation, and the quality of the bonding材料 can impact the durability of the bond. When these bonds fail, the bridge may become loose or detach entirely, which can lead to patient dissatisfaction and necessitate further treatment. Debonding can occur due to various reasons, including insufficient surface treatment or tooth structure changes over time.

While concerns like staining, fracture, and reduced tooth reduction are relevant in assessing the overall performance and aesthetic aspects of Maryland Bridges, they do not present the immediate functional challenge that debonding does. Debonding can lead to loss of the bridge functionality and may require more complex restorative solutions, making it the primary concern among the options listed.