Implants

Question 1

Riedel’s line is The head angled such that a horizontal line from the superior border of the external auditory canal (porion) to the inferior aspect of the orbital rim (orbitale) with the patient’s gaze parallel to the floor is parallel to the ground

Answer 1

F

This is the Frankfort plane

Question 2

Riedel’s line connects most prominent portion of upper lip to the lower lip

Answer 2

T

the ideal chin (Riedel) should be along this line

Question 3

The Facial plane is a Vertical line from nasion, intersecting Frankfort plane at 90°; the ideal chin (Gonzalez-Ulloa) should approach (reach) this line

Answer 3

T

Question 4

Microgenia is hypoplasia of various parts of the jaw with malocclusion

Answer 4

F

this is micrognathia

Question 5

Microgenia is the result of underdevelopment of the mandibular symphysis with an adequate mandible

Answer 5

T

Question 6

The ideal chin implant material has the following charcterisitics:
Well tolerated
Non-palpable
Natural feel
Stable, resistant to resorption and infection
Non-immunogenic
Non-carcinogenic
Easily removed
Straightforward to insert and to modify
Flexible enough to conform to the underlying bony surface, and to be folded for placement through a relatively small incision

Answer 6

T