What is the ideal spacing provided by the impression tray material?

The ideal spacing of 2-3 mm between the occlusal/incisal edge and the impression tray is crucial for ensuring an accurate and functional dental impression. This spacing allows for the flow of the impression material, accommodating the necessary thickness to capture fine details of the teeth and surrounding tissue. If the material is too thick or too thin, it can lead to distortions in the impression, which can negatively impact the fit and effectiveness of dental restorations or appliances.

Additionally, this spacing helps to minimize the risk of air bubbles being trapped in the impression, which could compromise its integrity. The 2-3 mm distance provides a suitable amount of material for achieving an optimal impression without overfilling or underfilling the tray, which ultimately leads to better results during the processing of dental procedures.