What is a PVS impression?

PVS impressions are dimensionally stable for up to two weeks at room temperature without measurable distortion, per ISO 4823 manufacturer testing. That said, Dani Dental recommends pouring within 24 to 48 hours of capture when possible. The longer the impression sits, the higher the chance of disinfectant residue, tray flex during shipping, or material relaxation affecting the final die. Cases shipped overnight and poured the next morning produce the most consistent working models in our experience.

Both. Dani Dental accepts PVS impressions, polyether impressions, and intraoral scan files from all major scanner systems including iTero, 3Shape TRIOS, Medit, and Primescan. Physical impressions are inspected on arrival and the technician on the case calls the practice the same business day if anything in the capture would compromise the final restoration. Mixing workflows on the same case, for example a PVS impression of the prep with a digital bite, also works for most case types.

The most common failure modes we see are drag marks at the gingival margin from premature removal, voids over cusp tips from inadequate light-body syringing, tray-through contact where the heavy-body compressed against the tray instead of capturing tooth structure, and moisture contamination on prepped dentin. Each of these is visible on inspection. Dani Dental flags the issue, photographs it, and calls the office with a recommendation before any model work begins, so the practice can decide whether to reimpress or proceed.