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3. PERIODONTIUM
• 2 Mineralized components are (a) cementum, (b)
Alveolar bone
• 2 Fibrous components (a) periodontal ligament (b)
laminapropria of gingiva
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4. PERIODONTAL LIGAMENT
The periodontal ligament occupies the periodontal space ,
which is located between cementum and the periodontal
surface of the alveolar bone
PRINCIPLE FIBRES
Alveolar crestal group
This group radiate from the crest of the alveolar process
and attach themselves to the cervical part of the cementum
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6. REMOVABLE APPLIANCES
BEGGS MECHANOTHERAPY
PRE ADJUSTED EDGEWISE MECHANOTHERAPY
TIP EDGE MECHANOTHERAPY
EDGE WISE MECHANOTHERAPY
ROTATION CONTROL BY VARIOUS
APPLIANCES
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7. BEGG’ S MECHANOTHERAPY
(1) Vertical looped arch wires plays a great role
in
rotating the central and lateral incisors .
(2) Rotating springs made of 0.014 “ wire
provides a positive force and rotates all teeth .
It establishes a two point contact between the
tooth and the arch wire .www.indiandentalacademy.com
8. (3) BRACKET OFFSETTING
The brackets are not placed in the center of the
tooth instead it is placed according to the rotation .
(4) LINGUAL BUTTONS pre assembled on thin 0.004” base
are used as points of engagement for rubber elastics and
elastic threads.
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9. (5) ROTATION OF SEVERELY ROTATED
MOLAR TOOTH .
There are occasions when the molars are so badly
rotated , or when the bicuspids are so buccal or
both , the arch wire engagement in the molar tube
is impossible . The procedure of choice is to make a
2 point contact between the distal end of the arch
wire and the molar tube.
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10. (1) BRACKET SYSTEMS
(2) STEINERS METAL WEDGES
(3) RUBBER ROTATIONAL WEDGES
(4) “ L “ LOOPS & “ R “ LOOPS
(5) TRANS PALATAL ARCHES
(6) LINGUAL CLEATS
(7) INTIAL WIRES
PRE ADJUSTED EDGE WISE
MECHANOTHERAPY
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11. BRACKET SYSTEMS
Double width bracket ( Twin bracket )
Single width bracket ( Lang bracket )
( Lewis bracket )
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