Surgical InstrumentsSteelSterilizationHistory, 16th CenturyEquipment ContaminationDecontaminationDisinfectionStainless SteelAsepsisHistory, 17th CenturySurgery, Computer-AssistedLaparoscopesEquipment DesignCreutzfeldt-Jakob SyndromeMicrosurgeryPrionsSurgical Procedures, Minimally InvasiveDental InstrumentsReproducibility of ResultsPsychometrics