Which type of alginate has a shorter setting time, 1-2 minutes?

Type I alginate is designed to have a shorter setting time, typically ranging from 1 to 2 minutes. This quick-setting property is particularly useful in clinical situations where time may be a constraint or when immediate impressions are required.

In dental practice, Type I alginate is often used for preliminary impressions or situations where a fast turnaround is vital, such as in the case of fabricating just a temporary restoration.

Type II alginate, on the other hand, has a longer setting time, making it better suited for cases where a more controllable working time is needed. The terms "regular set" and "working set" primarily relate to the setting times associated with different formulations of alginate, but Type I is specifically curated for quick settings, distinguishing it from other types.