P3-ORTHO-PPT 6

3 month

WHen does tooth development(toothbuds) start?

Neonatal lines

THese are white lines seen in pirmary teeth

1. Respiration

2. Swallowing

3. Mastication

4. Speech

4 maturation of oral function

Respiratory needs

Primary determinant of posture of the mandible and tongue

sleep apnea

THis is when the airway becomes blocked during sleep, usually because the muscles in the throat relax excessively.

tongue should sit in the roof of the mouth when not talking and eating.

Correct resting position of the tongue, required for nasal breathing

Suckling

In swallowing, this is the infant's nibling movements of the lips on the milk ducts to stimulate the muscle to contract & release milk

Infantile swallow

In swallowing, this is when tongue is placed anteriorly in contact with the lower lip.

Adult swallow

THis is when the Lips relaxed, with the tongue tip placed against the alveolar process behind the upper incisors, and the posterior teeth brought into occlusion during swallowing

Opens laterally-> MIdline-> close

In mastication, explain the mastication movement of a child

opens straight down -> lateral -> close

In mastication, explain the mastication movement of an adult

Bilabial /b/ /m/ /p/

First speech sound to develop

Linguodental /t/ /d/

THis speech is Next to develop; tongue-tip consonants

Sibilants /s/ /z/

This speech is Require placing the tongue close to, but not against the palate

Alveolar approimant /r/

THis speech is the Last speech sound; requires precise positioning of the posterior tongue

Cleft lip

difficulty in producing bilabial /b/ /m/ /p/

irregular incisors

difficulty in producing linguodental /t/ /d/

Anterior open bite; excessive overjet

difficulty in producing sibilants /s/ /z/

-HIgh-arched palate

-very short lingual frenum

-skeletal class 3MO

difficulty in producing Alveolar approximant /r/

Skeletal Class 3 MO

difficulty in producing fricatives /f/ /v/

ABDCE

Eruption sequence of primary teeht

Proper alignment of permanent teeth

REason for priamte spaces

Between B & C

Presence of priamte spaces in maxilla

between C & D

Presence of primate spaces in mandible