Dentition

Question 1

When are SLPs concerned with abnormal dentition?

Answer 1

When the dental abnormalities affect speech

Question 2

What is the role of the SLP?

Answer 2

To first determine whether the abnormal speech is related to abnormal structure or abnormal function. If it is caused by abnormal structure, it is important to determine whether there are obligatory distortions (due to abnormal structure only) or compensatory errors (alterations in articulation placement due to abnormal structure)

Question 3

Where are teeth formed and located?

Answer 3

Premaxilla forms the primary palate/hard palate (6-8 weeks gestation)
Premaxilla holds the top four incisors
Palatal shelves forms the palatine process of the maxilla/secondary palate (8-10 weeks gestation)
Palatal shelves hold all the other teeth

Question 4

Premaxilla

Answer 4

forms the primary palate/hard palate (6-8 weeks gestation)

Holds the top four incisors

Question 5

Palatal Shelves

Answer 5

forms the palatine process of the maxilla/secondary palate (8-10 weeks gestation)
Palatal shelves hold all the other teeth

Question 6

When do bone grafts occur?

Answer 6

Teeth will migrate to where there is bone, typically bone graft surgeries are done in children 8-10 years old

Question 7

How are adult teeth identified?

Answer 7

Numbered

Question 8

How are immature/deciduous teeth identified?

Answer 8

Lettered (A-T)

Children have 2 front incisors, 2 lateral incisors, 1 set of cuspids, 2 molars

Question 9

Identifying surfaces of teeth

Answer 9

"towards": front/back
"towards": tongue/cheek
medial: midline facing front
distal: midline facing back
lingual: tongue/buccal (cheek)

Question 10

What is Dental Occlusion?

Answer 10

Upper and lower teeth coming together

Question 11

Upper teeth

Answer 11

maxillary

Question 12

Lower teeth

Answer 12

mandibular

Question 13

Overjet

Answer 13

front incisors close over bottom incisors/cover the bottom completely. Too much overlap of the upper incisors over the lower incisors

Question 14

Underjet/anterior crossbite

Answer 14

reversal of the normal upper to lower incisor relationships so that the upper incisors are inside (or lingual to) the lower incisors

Question 15

Malocclusion

Answer 15

Describes the molar relationship
Class 1: molar relationship typical (may have crooked teeth)
Class 2: Overbite- 1st maxillary molar too far forward
Class 3: Underbite- 1st maxillary molar too far back