Which of the following statements is true regarding the reduction of occlusal surfaces?

The statement about the reduction of occlusal surfaces being minimal to avoid thermal issues is true because maintaining some thickness of remaining tooth structure can help in preserving vital tooth sensitivity and pulpal health. Excessive reduction can expose the dental pulp to thermal changes and other stimuli, potentially leading to pulpitis or increased sensitivity post-procedure.

Furthermore, minimizing the reduction of occlusal surfaces allows for better retention and resistance of the final restoration while still accommodating the required space for the crown material. Proper occlusal reduction ensures adequate seating and function without compromising the underlying tooth structure more than necessary. This approach balances the need for an effective prosthetic solution with the preservation of natural tooth integrity and sensibility.