MIXED DENTITION

MIXED DENTITION

the period during which both primary and permanent teeth are in the mouth together

MIXED DENTITION

aka transitional dentition

MIXED DENTITION

the teeth present are in a constant change

MIXED DENTITION

begins from the eruption of the first permanent tooth

A B C D E 6

Early mixed dentition (6-7)

1 2 C D E 6

Middle mixed dentition (7-9)

- 1 2 C 4 5 6 7

Late mixed dentition (9-12)

SUCCESSIONAL TEETH

those primary teeth that follow into a place in the arch once held by a primary tooth

ACCESSIONAL TEETH

those permanent teeth that erupt posteriorly to the primary teeth

ACCESSIONAL TEETH

which includes the first, second, and third molar

FLUSH TERMINAL PLANE

if the distal surface of the maxillary and mandibular deciduous second molars are in the same vertical plane

FLUSH TERMINAL PLANE

provides an end to end relationship of the first permanent molar

EARLY MESIAL SHIFT

eruption of the first mandibular molar closes the primate space from the posterior thus decreasing arch perimeter

NANCE LEEWAY SPACE

size difference between the primary molars and the permanent premolars CDE > 345

0.9mm

max nance leeway space

1.2mm

man nance leeway space

LATE MESIAL SHIFT

when no space exist, the erupting first permanent molars is not able to close spaces

LATE MESIAL SHIFT

results to class 1 malocclusion

MESIAL STEP

is still considered good for the permanent dentition

MESIAL STEP

a skeletal discrepancy that will result to class III malocclusion

DISTAL STEP

reflects a skeletal imbalance

DISTAL STEP

results to class II malocclusion

UGLY DUCKLING STAGE

the time where the teeth of the child appears too big for the face

UGLY DUCKLING STAGE

where the four permanent maxillary incisors appear to fan out

diastema

a temporary characteristic the normally occurs from age 6 to 9 years old

diastema

should not be touched

LATERAL INCISORS

nagccause ng crowding pag eto na yung nagerupt

MAXILLARY CENTRAL INCISORS

erupt with a distal inclination and some midline space between them

FUNCTIONAL STOPS

provided by the maxillary and mandibular anterior teeth

INCISOR LIABILITY

also called “negative leeway”

INCISOR LIABILITY

the difference in the summation of mesiodistal width of 4 primary incisors against the sum of mesiodistal width of 4 permanent incisors

INCISOR LIABILITY

mas malaki yung papalit kesa sa pinaltan

large primary, small permanent

Favorable tooth size ratio

small primary, large permanent

Unfavorable tooth size ratio

OVERJET

slightly wider than the primary because they are more labioverted