What phenomenon occurs due to changes in temperature from hot drinks and cold ice cream affecting dental materials?

The phenomenon that occurs due to changes in temperature from hot drinks and cold ice cream affecting dental materials is thermal expansion and contraction. When dental materials, such as fillings or crowns, are exposed to temperatures that vary widely, they expand when heated and contract when cooled. This process can stress the material and potentially lead to gaps or separation between the dental material and the tooth structure, resulting in compromised integrity and functionality.

In dental practice, it is important to consider the thermal properties of the materials used, as repeated cycles of heating and cooling can impact their longevity and effectiveness. When materials expand and contract at different rates compared to the natural tooth structure, it can result in issues like micro leakage, where bacteria and fluids seep into the gaps, causing decay or sensitivity. Understanding thermal expansion and contraction helps dental professionals select appropriate materials and educate patients on the impact of temperature fluctuations on their dental restorations.