IDRR APRIL -MAY -JUNE 2020 - Flipbook - Page 22
ENDODONTICS
Liquid dam like Oraseal or resin like Opaldam can be
used in case of leak in difficult situations.
Modifying the access cavities by making notches are
advantageous in locating and instrumenting difficult
to reach canals.(Fig :7)
Ultrasonic tip (Fig:8)are very useful while refining the
pulpal wall and canal orifice, as you can see and cut
Fig 4
ACCESS PREPARATION
Caries driven ACCESS preparation is very predictable
in reaching the chamber conservatively.
Complete deroofing is essential to locate the canals
with ease. (Fig:5)
A long shank round bur(Fig:6) is preferred as it gives
space for visibility while cutting.
Fig 7
with precision without the fear of accidental over
cutting with high speed handpiece.
STRAIGHT LINE ACCESS
Fig 5
For refining the cavity walls, use Non cutting round
end taper bur.
Fig 8
Run No 3 Gates Glidden from the orifice through the
line angle of the access cavity in an outward and
upward brushing motion to get straight line access.
LOCATION OF CANALS
The canals are located at the corner of the floor and
the wall of the pulp chamber.
Placing a drop of water in the chamber will allow a
fish eye view of the floor which will enable us to locate
the canals using a probe.
Fig 6
July-August-September 2019
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