Answer the question according to your dominant hand. The ope…
Answer the question according to your dominant hand. The operator chair position for tooth #21-DL is at: 10:00-11:00 for a right-handed operator and/or 3:00 for a left- handed operator. The mirror fulcrum is positioned for tooth #21 DL around the area of: #10-12 for a right-handed operator or #10-12 for a left-handed operator.
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