INBDE (Integrated National Board Dental Examination) Practice Exam

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What are the settings for pressure sterilization?

121C at 10psi for 20 min
121C at 15psi for 15 min
134C at 20psi for 10 min
160C for 2 hrs

The correct answer is: 121C at 15psi for 15 min

The correct answer is "121C at 15psi for 15 min" for pressure sterilization settings. This combination of temperature (121C) and pressure (15psi) for a duration of 15 minutes is in accordance with the standard sterilization guidelines. This method helps to ensure the complete eradication of microorganisms and spores, making it an effective protocol for sterilizing dental instruments and equipment. Option A, "121C at 10psi for 20 min," does not provide the recommended pressure for sterilization. Option C, "134C at 20psi for 10 min," offers a higher temperature than necessary for standard sterilization procedures. Option D, "160C for 2 hrs," also presents a temperature that is too high and not typically used for pressure sterilization in dental settings.