Talk:Dental impression

Incorrect sentence?
This sentence seems incorrect:

Stock trays can be dentate or edentulous, and perforated (used with alginate) or non-perforated (allows the impression material to run through the holes and increase the bond of the impression material to the tray when set).

Shouldn't it be the other way round, for example:

Stock trays can be dentate or edentulous, and non-perforated (used with alginate) or perforated (allows the impression material to run through the holes and increase the bond of the impression material to the tray when set).

It seems clear that the perforated tray is the one with holes, I'm not sure that the non-perforated is correct for alginate.Rhkramer (talk) 16:50, 3 December 2018 (UTC)

Digital impression
The page might benefit from a section or link to digital/optical impressions Oiguodala (talk) 13:43, 5 January 2019 (UTC)
 * I have added two lines for now.-Nizil (talk) 06:59, 6 January 2019 (UTC)