What is a common consequence of improper alginate mixing?

Improper alginate mixing typically leads to inconsistent impression detail. When alginate is mixed inadequately, whether it’s due to incorrect water-to-powder ratios, insufficient mixing time, or the use of contaminated tools, the resulting material may not achieve an even consistency. This results in air bubbles or areas of uneven texture in the impression, thereby compromising the quality of the impression. An accurate impression is vital for creating dental models or restorations that fit properly, so achieving consistently mixed alginate is crucial for capturing fine details of the oral structures.

The other options reflect outcomes that would not stem from improper mixing. For instance, extended working time typically relates to the composition and formulation of the material rather than mixing quality. Similarly, a faster setting time is a matter of the material's properties rather than how it was mixed. Lastly, better patient comfort is more associated with the material's handling characteristics, which would not improve due to improper mixing.