567AccessOpening Steph

7/29/2019 567AccessOpening Steph

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Access Openings and Anatomy


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RUBBER DAM ISOLATION A MUST!!!!!!!!!!!!!!!!!!!!

Standard of Care!!!!! Dont need expert witness, if you dont use you lose.


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MATERIALS/INSTRUMENTS NEEDED FOR

ISOLATION

Rubber dam

Rubber dam clamp

Forceps

Clamps

Wedgits or floss possibly

Rubber dam sealing material

Endo is single tooth isolation!


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RUBBER DAM ISOLATION


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RUBBER DAM ISOLATION


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ACCESS OPENING

Instruments/Materials Needed:

Initial Radiograph (Double-Pack)High (and Low) Speed Handpiece

Round bur

MirrorEndodontic Explorer


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ACCESS OPENING


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Objectives of Access Openings

1. Locate all the canals

2. Straight line access (may also be done ininitial cleaning and shaping)

3. Removal of the chamber roof and allcoronal pulp tissue

4. Being conservative while getting the job

done (removing caries, unsupported enamel,etc.)

Commonly see errors with #s 1 and 3


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ACCESS OPENING


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MEASURING THE DEPTH OF ACCESS


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Removing the roof of the

chamberremember the floor of the

chamber is GREY and the roof is a Yellow

ish-White


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Triangles, Ovals, Trapezoids


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Maxillary 1st Premolar


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Maxillary 2nd Premolar


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Maxillary 1st Molar


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Maxillary 2nd Molar


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Mandibular Central and Lateral Incisors


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Mandibular Canine


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Mandibular 1st Premolar


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Weines classification of root canal anatomy


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Mandibular 2nd premolar


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Mandibular 1st Molar


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Mandibular 2nd Molar


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C-shaped Canal


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Watch out for calcified canals***Canals that disappear

radiographically from coronal to

apical NOT calcifiedmore

than one canal present***

Wider teeth more canals than tall skinny teeth

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567AccessOpening Steph