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Classification of Elevators

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by

Sarah Patrick

on 11 April 2014

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Transcript of Classification of Elevators

N. B. :
Winter and Cryer applicators use the the wheel & axle principle
Force is applied to the circumference of a wheel that turn the axle so as to raise a weight
Used in conjunction with wedging and leverage principle


Sets of elevators adequate to take care of all needs in exodontia

ELEVATORS COMMONLY USED
N.B. :
Both Winter and curved Apexo elevators are also known as root elevators

Extraction of roots
Tip of blade inserted in bony socket of septum, facing root
Remove by elevating force
In molars, if no available space to insert elevator’s tip, divide the multiple roots using surgical bur


Application :

Nurul Zahidah Zakaria (100718)
Qurratu’aini Mohd Zainud-din (100719)
Sarah Aishah Farid Patrick (100720)
CLASSIFICATION OF ELEVATORS
Straight forms of different sizes
Concave surface on one side facing tooth
Bone chisel
Lever principle
No.1-6


Coupland Chisel Elevators

Straight form of different sizes
No. 4-6
Barbed blade

Lindo Lavien Elevators

Left Warwick James elevator
Right Warwick James elevator
Straight Warwick James elevator
Slim shaft
Beak with rounded end


Warwick James Elevators

Left winter’s elevator
Right winter’s elevator
Shank at 90 degree to handle
Working tip at an angle to shank
Blade convex and flat surface
Wheel and axle principle
Luxate lower molars


Winter’s Elevators
(Buccal applicators/ crossbar)

Apexo Elevators

Left apexo elevator
Right apexo elevator
Straight apexo elevator
Miller apexo elevator
Biangulated and sharp
Straight working tips
Wedge and wheel and axle (straight)
Lever and wedge (angled)
Remove upper posterior roots

Buccal application of force;
Surgical removal of lower 8
Mucoperiosteal flap is retracted
Buccal cortical plate removal  expose root bifurcation
Tip of elevator introduced in bifurcation
Remove tooth; buccal plate as fulcrum


Application :

Surgical extraction of lower 8

Uses :

1. Blade inserted in the interdental space between 2nd & 3rd molars with its convex side resting on the interdental septum. The straight or concave side of the blade is engaged in the cementum of the mesial root of the 3rd molar.

2. Rotatory movement is made to luxate or remove the 3rd molar from its socket.
Application
(mesial application of force)
To reflect, pull away, detach tissue and periosteum from the bone
Retract tissue
One sharp and one rounded end
Loosening of soft tissue attachment from teeth


Periosteal Elevators

Straight fragment ejectors
Angulated to the left
Angulated to the right

Apical Fragment Ejectors

Left cryer elevator
Right cryer elevator
Right angle sharp, triangular beak
Working tip angulated with one convex and flat another (working side)
Lever and Wedge
Wheel and axle
Function anywhere but especially for removal of lower molar roots
Similar to winter’s but has straight handle
Dangerous force due to straight handle

Cryer Elevators

Left curved hospital pattern elevator
Right curved hospital pattern elevator
Straight hospital pattern elevator
Crisscross design on handle
Serrated blade
Lever and wedge

Hospital Pattern Elevators

Trim septal bone until reach the root fragment
Insert the tip of blade between septal bone and root, parallel to the long axis of tooth
Remove with elevating force (wedging)

Application :

Have fine tipped blades
Can be straight, curved

Description :

Apexo Elevators

Root removal using Cryer elevator

Removal of parts of socket septum

Uses :

Blade :
Makes an angle with shaft of elevator
Triangular in shape
Have sharp point


Description :

Blade:
in direct continuation (in 1 line) with the shank
Has 1 convex side & another straight or concave side

Uses:
Extraction of impacted 3rd molars (maxillary/mandibular)
Luxation of mandibular 3rd molars prior to their complete extraction with the forceps

STRAIGHT ELEVATORS
1. Straight all types
2.Curved right & left
3.Angulated right & left
4.Cross bar (handle at right angle to the shank)
ACCORDING TO FORM
To remove roots broken off half way to the apex
Curved elevator hospital pattern, Winter elevator, Apexo elevator
Extraction of roots


Uses :

Winter Elevator


Cryer Elevator

Winter & Cryer Elevators

To remove the entire tooth
Straight Elevators, Hospital Pattern, Winter’s Elevator
ACCORDING TO USE
To remove roots broken off at gingival line
Apexo elevators (straight, angulated right & left), Coupland elevators, Lindo Lavien elevators
3.Once the tooth is loosened, stop the application of the elevator & complete the extraction with forceps because when the fulcrum gets loose, the movements of the elevator become uncontrolled & might slip, injuring the lingual soft tissues & lingual nerve or vessels.

4. When mesial application of force is indicated in surgical removal of 3rd molar (no available space for insertion of the elevator blade) bone is removed from the buccal alveolar plate to create space for introduction of the elevator blade (after retraction of a mucoperiosteal flap).
To remove the apical third of the root
Apical fragment ejectors (straight, angulated right & left)

To reflect the mucoperiosteum
Periosteal elevators
Full transcript