<prompt> According to ADA specification number 12, doughforming time should be less than ___ min fromthe start of the mixture.90 min60 min50 min40 min  <response>: DOUGH-FORMING TIMEThe time required for the resin mixture to reach a doughlike stage is termed the dough-forming time. American National Standards InstituteAmerican Dental Association ANSIADA Specification No.12 ISO 20795-1:2008: DentistryBase polymersPart 1: Denture base polymers for denture base resins requires that this consistency be attained in less than 40 min from the start of the mixing process. In clinical use, the majority of denture base products reach a doughlike consistency in less than 10 min.Key Concept: Denture base resins requires that dough consistency be attained in less than 40 min from the start of the mixing process.Reference: PHILLIPS SCIENCE OF DENTAL MATERIALS, 12th ed page no 478 