What is a major drawback of using a dry heat oven for sterilization compared to an autoclave?

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Requires more time to completeHas lower sterilization efficiencyLeads to corrosion of instrumentsDulls the edges of sharp tools

Explanation

Using a dry heat oven for sterilization takes considerably longer than an autoclave. While it avoids moisture-related issues like rusting, the primary disadvantage is the extended time required to achieve sterilization compared to the faster autoclave process.