7/29/2019 Slide 2 - 2 - Access Cavity Preparation

1/12

C Pa is ley

Leeds Dental InstituteFaculty of Medicine & Health

Clinical Skills A Endodontics

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

2/12

C Pa is ley

Remove roof of pulp chamber In order to enable preparation of root

canals

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

3/12

C Pa is ley

Carefully assess pre-operative radiograph

Appreciate size /

shape / location of pulpchamber

Look for potentialproblems: Pulp stones, Sclerosis,

Resorption, Fractured

Instruments, Curved Canals

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

4/12

C Pa is ley

Will it enable isolation with rubber dam?

Is there any caries?

Consider replacement with a durable provisionalrestoration eg GIC, Amalgam

Assess condition of tooth /existing restorations:

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

5/12

C Pa is ley

Entire roof of pulp

chamber removedStraight-line access

No damage to pulp floor

As conservative as

possible

Criteria for Access Cavity

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

6/12

C Pa is ley

MD B P

P

B

D M

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

7/12C Pa is ley

MD B P

P

B

D M

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

8/12C Pa is ley

Pre-operativeradiograph

Knowledge of pulpalanatomy

Magnification

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

9/12C Pa is ley

1. Find the pulp chamber

2. Locate the canals

3. Ensure adequate access to canalorifices

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

10/12C Pa is ley

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

11/12C Pa is ley

7/29/2019 Slide 2 - 2 - Access Cavity Preparation

12/12C Pa is ley