Exam 1 - Intraoral Exam

Question 1

The MB cusp of the upper 1st molar occludes with the MB groove of the lower 1st molar

Answer 1

Normal Occlusion

Question 2

Normal relationship of 1st molars but malposed teeth, rotations, or other causes

Answer 2

Class I malocclusion

Question 3

Lower molar distally positioned relative to upper molar. End-to-end or full cusp

Answer 3

Class II Malocclusion

Has type1 and type 2 division

Question 4

Molar Class II
Proclined incisors
Increased OVERJET
variable overbite

Answer 4

Class II, Division 1

Question 5

Molar Class II
Retroclined Incisors
Increased OVERBITE

Answer 5

Class II, Division 2

Question 6

Lower molar mesially positioned relative to upper molar

Answer 6

Class III Malocclusion

Question 7

Vertical overlapping of incisors
Measured from incisal edge to incisal edge

Ideally 1-2 mm
Deeper bite = increased number

Openbite has Negative number

Answer 7

Overbite

Question 8

Increased overbite
Dental or skeletal

Supereruption of Max or Mandibular or both

Lack of posterior stops

Answer 8

Dental Deepbite

Question 9

Negative overbite
Infraeruption of incisors

Dental or skeletal

Associated with habits- thumb sucking, thrusting

Answer 9

Dental Openbite

Question 10

Horizontal Overlap

Distance in mm between incisal edge of upper incisors and labial surface of lower incisors

Ideally 1-3 mm

Measured in mouth with plastic ruler

Answer 10

Overjet

Normally 1-3 mm
Moderate 4-6 mm
Severe > 6

Question 11

Reference line GI-Sn
observe upper midline

Amount and direction of shift in mm

Observe lower midline in centric

Difference Functional shift

Answer 11

Midlines

Question 12

Crowding
Premature loss of primary teeth
Mandibular shift

Answer 12

Midlines Deviation

Question 13

Posterior crossbite

Uni or bilateral
Narrow upper arch
Wide mandible
Skeletal or dental
Functional mandibular shift

Answer 13

These are transverse problems that must be assessed in intraoral exam

Question 14

Teeth present

Number
Dental age
Size and shape: peg laterals?
Tooth surface: hypoplasias, anomalies
Tooth wear: attrition?

Answer 14

Recording the number, shape, condition and eruption of teeth

Question 15

Gingival health and quality
Gingival architecture

Frenal attachments: thickness and length

Tongue position

Tongue size

Answer 15

Soft tissue assessment

Question 16

specific MD angulation along the vertical plane

Gingival portion aligned or distal to occlusal portion

Variable from tooth to tooth,

Answer 16

TIP

Question 17

Specific BL inclination in relation to Occlusal plane

Positive for anterior teeth

0 or Negative for premolars

Answer 17

Torque

Question 18

Most frequent reason for consult

Measured in mm

mild 0-3 mm
Moderate 4-6 mm
severe > 6mm

Answer 18

Crowding/Spacing

Negative values represent crowding

Positive values represent spacing

Question 19

Skeletal protrusion, forward position of the Maxilla or Mandible relatively to the cranial base of the skull

Answer 19

Prognathism

Question 20

Skeletal retrusion, backward position of the maxilla or mandible relatively to the cranial base of the skull

Answer 20

Retrognathism

Question 21

Balance position of both maxilla and mandible

Answer 21

Skeletal Class I

Question 22

Maxillary prognathism or Mandibular retrognathism or combination

Answer 22

Skeletal Class II

Question 23

Maxillary retrognathism or mandibular prognathism or combination

Answer 23

Skeletal Class II

Question 24

Normal Vertical Proportions

Answer 24

Upper anterior facial height 45%

Lower anterior facial height 55%