A segment of a veneer that fractures but remains intact is defined as what type of fracture?

The type of fracture defined as a segment of a veneer that fractures but remains intact is referred to as a cohesive fracture. In the context of dental materials, a cohesive fracture occurs within the material itself, indicating that the bonds within the material's structure are breaking while maintaining the overall integrity of the veneer segment. This type of fracture suggests that the material has reached its limit in terms of tension or stress but has not completely failed or detached from the underlying structure.

Understanding this concept is essential when evaluating the durability and performance of veneer materials in clinical scenarios, particularly in restorative dentistry. Cohesive fractures are often a significant consideration in material selection and treatment planning, as they can affect the longevity and aesthetic outcomes of dental restorations.