What is a potential complication of using high casting shrinkage materials in dentistry?

Using high casting shrinkage materials in dentistry can lead to a variety of complications, one of which is the fracture of the appliance. High casting shrinkage materials tend to contract significantly during the setting process, which can compromise the integrity and strength of the finished product, such as crowns or bridges. This shrinkage can create internal stresses within the material, making it more susceptible to fractures during functional use or even during the manufacturing process.

Fractures in dental appliances can lead to unnecessary discomfort for the patient and may require additional dental visits for repairs or replacements. Hence, the use of such materials must be carefully considered in the context of their potential to cause structural failures, impacting both the longevity of the appliance and the patient's oral health.

While the other options may have various implications in dental practice, they do not directly result from the casting shrinkage properties of the material to the same degree that fractures do.