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DEVELOPMENT OF OCCLUSION

INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com
www.indiandentalacademy.com
INTRODUCTION

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Development of Dentition and
its Contribution to Occlusion





Pre-dentition Stage
Primary Dentition Stage
Mixed/Transitional Dentition Stage
Permanent Dentition Stage

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Pre-dentition Stage



Description of Gum Pads
Relationship between the Gum Pads

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Relationship between the Gum
Pads

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Primary Dentition Stage


Spaces in anterior region
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Primate spaces

Primary molar relationship
Temporary anterior deep bite

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Spaces in anterior region
and its significance

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Table and sequence of
eruption of primary dentition

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Primary molar relationship
and its significance

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Temporary anterior deep bite



Retruded mandible
More upright incisors

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Mixed dentition stage
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

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Eruption of permanent first molar
Events of clinical importance during
incisor exchange
Eruption of buccal teeth and the
significance of sequence of eruption

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Eruption of first permanent molars




Path and pattern of eruption of molars in
each jaw
Changes in their occlusal relationship till
occlusion gets settled

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Position and pattern of
eruption of molars in each
jaw

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Changes in their occlusal
relationship of the molars

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Eruption of incisors



Incisal liability
Ugly duckling stage

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Incisal liability

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Interdental space utilization
Increase in intercanine width
Change in incisor inclination

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Increase in intercanine width

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Increase in incisal inclination

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Ugly duckling stage


Path of eruption of canine

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Ugly duckling stage

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Eruption of buccal teeth
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

Sequence of eruption
Utilization of Leeway space of Nance

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Permanent dentition stage



Second molar eruption
Third molar eruption

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Skeletal changes and their
contribution to occlusion




Rotation of maxilla and mandible as
they grow.
Juvenile occlusal equilibrium.

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Rotation of mandible

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Backward rotation

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Rotation of maxilla

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Jaw rotation & its
significance in occlusion

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Juvenile occlusal equilibrium

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Soft tissue and neuro- muscular
contribution to occlusion



Buccinator mechanism
Example of neuro-muscular control
over occlusion.

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www.indiandentalacademy.com
www.indiandentalacademy.com
Leader in continuing dental education

www.indiandentalacademy.com

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Development of occlusion /certified fixed orthodontic courses by Indian dental academy