The questionnaire included 19 questions relating to the disinfection process of impressions. They were sent out to all practicing dentists in the Icelandic Dental Association and all dental technicians in the Association of Icelandic Dental Technicians or total of 348 individuals.
Spurningakönnun sem innihélt 19 spurningar sem tengdust sótthreinsun máta var send í tölvupósti á alla starfandi tannlækna í Tannlæknafélagi Íslands og alla tannsmiði í Tannsmíðafélagi Íslands, sem gera samtals 348 manns.