Medical MCQ-Down’s cephalometric analysis of a patient reveals a high mandibular plane angle. Which of the following landmarks are used for the construction of the mandibular plane in this analysis?

Down’s cephalometric analysis of a patient reveals a high mandibular plane angle. Which of the following landmarks are used for the construction of the mandibular plane in this analysis?

Go-Me

Go-Gn

Tangent to the lower most border of the mandible

Me-antegonial notch

Question Category:

Dental

Correct Answer:

Go-Me

Description:

Tweed and Ricketts- straight line tangent to the lower most border of the mandible. Downs- line joining Gonion to menton. Steiner- line joining Gonion to gnathion. Bimler’s line- line joining menton to antegonial notch.Ref: Radiographic cephalometry:Jacobson A

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