Diagnosis & Treatment Plan

Question 1

Macroeasthetic =
Miniesthetics =
Microesthetics =

Answer 1

face, smile, teeth

Question 2

MB cusp of maxillary first molars occlude with MB groove of mandibular first molars, teeth aligned along line of occlusion in the maxilla and mandible

Answer 2

class I normal molar occlusion

Question 3

MB cusp of maxillary first molar occludes with MB groove of mandibular first molar, teeth do not align

Answer 3

class I malocclusion

Question 4

MB cusp of maxillary first molars is mesial MB groove of mandibular first molar, maxillary arch displaced anteriorly

Answer 4

class II malocclusion

Question 5

2 subdivisions of class II molar relationship

Answer 5

Subdivision 1 = proclined
Subdivision 2 = retroclined

Question 6

MB cusp of maxillary first molars is distal to the MB groove of mandibular first molars, maxillary arch displaced posteriorly

Answer 6

class III malocclusion

Question 7

any deviation of the teeth from ideal normal occlusion

Answer 7

malocclusion

Question 8

What % of patients most often exhibit some form of malocclusion in their molar classification?

Answer 8

65% (60% of these have an unknown cause)

Question 9

vertical overlap of incisor from incisal edge to incisal edge

Answer 9

overbite

Question 10

normal overbite

Answer 10

1-2 mm

Question 11

too much vertical overlap vs space between incisors

Answer 11

deep bite / open bite

Question 12

horizontal overlap of incisors from labial surface to labial surface of incisors

Answer 12

overjet

Question 13

normal overjet

Answer 13

2-3 mm

Question 14

What is reverse overjet?

Answer 14

when the lower incisors are in front of the upper incisors

Question 15

misalignment of teeth where upper teeth occlude behind lower teeth

Answer 15

crossbite

Question 16

maxillary anterior teeth positioned lingual to mandibular anteriors, observed in reverse overjet

Answer 16

anterior crossbite

Question 17

calculates tooth size discrepancy to measure relative mandibular or maxillary excess

Answer 17

Bolton analysis

Question 18

Which facial third can the orthodontist influence the most?

Answer 18

lower third

Question 19

The interpupillary distance should IDEALLY line up with?

Answer 19

the commissures of the mouth

Question 20

Name the molar relationship:
straight facial plane
convex facial plane
concave facial plane

Answer 20

class I
class II
class III

Question 21

refers to the relationship of the lower face relative to the forehead

Answer 21

facial divergence

Question 22

minimum vs ideal incisor display vs gummy smile

Answer 22

Minimum = 75% of incisors visible
Ideal = 100% incisor visible, + 1-2mm gingiva visible
Gummy smile = >2mm gingiva showing

Question 23

At rest, ideal incisor display is ______mm if incised edge.

Answer 23

2-4 mm

Question 24

the ability for lips to close without strain

Answer 24

posture

Question 25

Competent vs incompetent lips

Answer 25

Competent- lips can close without strain at rest
Incompetent- lips separated by 3-4mm at rest and muscles are strained upon closure

Question 26

based on the amount of vermillion visible at rest

Answer 26

proportion (can be thick or thin)

Question 27

position of the lips relative to the tangent line that runs from the nose tip to chin (E line)

Answer 27

position (prominent or retrusive)

Question 28

the appearance of a gap of space during smiling, between the maxillary posterior teeth and the corners of the mouth

Answer 28

buccal corridor (wide, medium, or narrow based on the amount of space visible)

Question 29

Skeletal class I, II, and III

Answer 29

Skeletal class I- normal relationship with the jaw
Skeletal class II- maxilla more anterior to mandible
Skeletal class III- maxilla more posterior to mandible

Question 30

normal ANB angle vs class II or III

Answer 30

Normal = 2 degrees
Class II = 4 degrees or more
Class III = 0 degrees or less