3. Content:
Page no.
Introduction 1
Classification 2
Predentate period 3
Deciduous dentition period 6
Mixed dentition period 10
Bibliography 15
4. “Anomalies, which arise in child’s developing dentition
during the period of transition from predentate period to
permanent dentition period and get corrected on their own
without any dental treatment”`
5. Classification of self correcting anomalies is
based on the period of development of
occlusion
PREDENTATE
PERIOD
DECIDUOUS
DENTITION
PERIOD
MIXED DENTITION
PERIOD
Retrognathic
mandible
Deep bite Anterior deep bite
Anterior open bite Flush terminal plane End on molar
relation
Infantile swallow Primate and
physiologic spacing
Mandibular anterior
crowding
Ugly duckling stage
6. a.) Retrognathic
mandible
Type of malocclusion
which refers to an
abnormal posterior
positioning of the
mandible.
* corrected by increased
pace of forward growth of
the mandible as compared
to that of maxilla.
7. b.) ANTERIOR OPEN
BITE
It is defined as the
lack of incisal contact
between anterior teeth
when the mandible is
bought into full closure
OR
It is defined as
absence of vertical
overlap of lower
incisors when the
posterior teeth are in
full occlusion.
8. c.) Infantile swallow
(aka tongue between
gum pads)
the jaw are apart and
tongue is placed
between upper and
lower gum pads.
*this pattern changes
during first year of life
with the introduction of
solid food in diet
9. DECIDUOUS DENTITION PERIOD
a.) DEEP BITE
-occur in initial stages of development
- Deep bite is accentuated by the fact that the deciduous
incisors are more upright than their succesors the
permanent incisors. The lower incisal edges comes in
contact with the cingulum area of maxillary incisors.
- Deep bite is later reduced due to
*Eruption of deciduous molar
*Attrition of incisors
*Forward movement of mandible due to
growth
10.
11. b.) FLUSH TERMINAL
PLANE
Presence of
flush terminal
plane in
deciduous
dentition indicates
normal occlusal
relationship in
permanent
dentition
12. c.) PRIMATE AND
PHYSIOLOGICAL
SPACING
- Mesial to maxillary
canine.
- Distal to
mandibular canine.
*spacing in primary
dentition is essential to
normal eruption and
alignment of the larger
permanent succesors
13. 3. MIXED DENTITION PERIOD
a.)Anterior deep bite
Because of large
permanent incisor
and shedding of
primary molar.
* Alleviated following
exfoliation of second
primary molar
14. b.) END ON MOLAR
RELATION
Flush terminal
relation between
the deciduous
second molar leads
to the end on
relation of the first
permanent molar.
15. c.) Mandibular anterior crowding
After exchange of canines alleviated
following exfoliation of second primary molar
16. d.) UGLY DUCKLING STAGE
Due to eruption off maxillary canine at 8-9
yrs of age there is a transient of self correcting
malocclusion seen in max. incisor region
* This condition usually corrects itself when the
canine erupts and the pressure is transferred to
the coronal area of the incisors.
17. 1.) Textbook of orthodontics by Gurkeerat singh.
2.) Textbook of pediatric dentistry by Nikhil marwah.
3.) GOOGLE IMAGES
