Rubber Dam

By

Ahmed Labib

All endodontic operation should be performed under the rubber dam.

-1-It provides a dry, clean and sterilizable field.

2-It protects the patient from possible aspiration or swallowing of tooth and filling debris, bacteria, necrotic pulp remnants of operating materials.

3-It protects the patient from rotary and hand instruments, drug and the trauma of repeated manual manipulation of the oral tissues.

-4-It is faster, more convenient and less frustrating than the repeated changing of cotton rolls or saliva evacuating devices

5-It eliminates the interference,

annoyance and obscuring of vision by the

tongue and cheeks.

6-Dark color rubber dam material provides

more contrast between the tooth color and

the dam material color, while lighter color

provide more illumination of the operative

field.

7-Prevent talkative patient from wasting

the chair side time

I-Rubber dam material

-Rubber dam material is available in precut squares or in rolls, in light – or dark colored material and in a number of thicknesses.

-The medium weight material can be adjusted to retract the soft tissues and it is recommended.

-This material has the proper elasticity to hug the tooth being isolated and providing a hermetic seal without the use of floss ligature tied around each tooth.

-Also, it does not tear or rap easily and

provides an unusual degree of protection

from injury for the underlying soft tissues.

-It exerts a greater retracting force on the

lips and cheeks than the thinner materials,

thus, affording greater access and

improved vision.

-The lighter weight material tends to tear

easily and the heavy weight dam places too

much tension on the clamp. Often resulting

in dislodgment.

II-Rubber dam frames:

-It is used to hold the

dam in a manner that

allows retraction of the

cheeks and providing

unobstructed access

to the tooth to be

treated.

III-Rubber dam clamps:

-R.D.clamps are used to

hold the R.D.materia

over the treated tooth.

-For endodontic therapy

particularly, the use of

clamps with wings allows

a more rapid and efficient

means of applying the

rubber dam .

-The wings allow the dentist

to place the clamp, dam,

and frame in one

operation.

Ivory No.9 & No.O for I&C., No.1 for PM.,No.26&No.14 A for M

IV-Rubber dam punch

-The rubber dam punch must be convenient in use and creates a sharp hole in the dam material.

- Failure to create a sharp hole in the dam material, will result in the contamination of the field owing to salivary leakage at the site of the ragged hole in the dam.

V-Rubber dam forceps

-The rubber

dam forceps is

used to carry

the rubber dam

clamps on the

involved tooth

THANK

YOU

Ahmed labib