What should be taken into account before selecting the shade for a crown?

Before selecting the shade for a crown, lighting conditions are crucial to ensure an accurate assessment and matching of shades. Different lighting can affect the perception of color, making it essential to choose the right environment for shade selection. Natural daylight is often ideal because it provides a balanced spectrum of light, allowing for a more accurate evaluation of how the crown's shade will blend with the natural teeth.

Considering the patient's dental history is also important but primarily in terms of aesthetics and matching restorations. Pre-existing restorations can influence shade selection as well since they must harmonize with existing dental work. Eye fatigue, while it might play a minor role, is not as critical as the quality of light used during the shade selection process. Thus, focusing on lighting conditions ensures that the selected shade looks natural under the various circumstances in which the patient will find themselves.