Changes in pH of irreversible hydrocolloid impression materials during setting.
Two ophthalmic and four dental irreversible hydrocolloid materials were tested in vitro to determine the initial pH and changes in pH to completion of set over 4 minutes. The ophthalmic Moldite material became more basic during its setting whereas the ophthalmic Moldeye material remained stable throughout the setting. The other materials tested decreased in pH with time.
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003102:Colloids; D003760:Dental Impression Materials; D003761:Dental Impression Technique; D006863:Hydrogen-Ion Concentration; D013997:Time Factors
D003102:Colloids; D003760:Dental Impression Materials