What is a key advantage of a direct impression or open tray impression?

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A direct impression or open tray impression technique is particularly advantageous because it allows for better access to the implant abutments, especially in cases where there may be complex angulations present. The design of the open tray impression helps accommodate these angulated abutments, enabling the impression material to capture the precise position of the implants without distortion.

This method minimizes the risk of the impression tearing upon removal, as it ensures that the impression is not overly confined by the tray, allowing for a more controlled removal even when the implants have unfavorable angulations. Thus, option D highlights a significant benefit of this technique by addressing how it can handle varying angles effectively, leading to an accurate reproduction of the implant's position.

The other options, while they may point out some benefits of impression techniques, do not highlight the primary strengths unique to the open tray method as directly or accurately as option D. For instance, easier procedures with short screws or considerations for gag reflex might not have the same level of relevance as the ability to manage angulated implants, which is a core advantage of the open tray approach.

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