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Dr. Marwa Elsharkasi INSTRUCTIONS FOR CLINIC. Chapter 5 Pages : 150 – 162.

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Presentation on theme: "Dr. Marwa Elsharkasi INSTRUCTIONS FOR CLINIC. Chapter 5 Pages : 150 – 162."— Presentation transcript:

1 Dr. Marwa Elsharkasi INSTRUCTIONS FOR CLINIC

2 Chapter 5 Pages : 150 – 162

3 CLASS I All pit and fissures Occlusal surfaces of premolars and molars Occlusal 2/3 of the facial and lingual surfaces of molars Lingual surfaces of maxillary incisors

4 CLASS II Preparations involving the proximal surfaces of posterior teeth

5 CLASS III Preparations involving the proximal surfaces of anterior teeth that do not include angle

6 CLASS IV Preparations involving the proximal surfaces of anterior teeth that include the incisal edge

7 CLASS V Preparations on gingival third of the facial or lingual surfaces of all teeth

8 CLASS VI Preparations on the incisal edges of anterior teeth or occlusal cusp tips of posterior teeth

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11 CONSERVATIVE CAVITY PREPARATION VS GV BLACK PREPARATION

12 Cervical margin extended to break contact & remove caries Break proximal contact allows passage of explorer tip Reserve the S curve that join isthmus and proximal box Cervical margin located subginigivally Break proximal contacts allows passage of enamel hatchet Width allows straight continuity between isthmus and proximal box

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14 BOX ONLY PREPARATION

15 It is limited to proximal surface without the occlusal extension It gains the retention from the convergent walls and the retentive groves at the internal line angles

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17 It is a modified preparation for conserving tooth structure It allow the preservation of the marginal ridge of proximal cavities

18 Dental Caries Deep cavity Indirect pulp capping Management of Deep caries Superficial & moderate cavity Restorations

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21 BURS FOR CAVITY PREPARATION #329, 330 pear shaped bur

22 BURS FOR CAVITY PREPARATION Fissure carbide Burs ( large, small )

23 BUR FOR DEEP CARIOUS LESIONS Large dull Round bur in low speed handpiece

24 BURS FOR FINISHING COMPOSITE

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26 Best for finishing occlusal composite, Lingual surfaces of Anterior teeth

27 BURS FOR FINISHING COMPOSITE Best for finishing occlusal composite, Lingual surfaces of Anterior teeth

28 For cervical margin composite and And removing overhanging composite

29 FINISHING COMPOSITE ON ANTERIOR TEETH

30 FINISHING AND POLISHING DISCS FOR ANTERIOR TEETH

31 FINISHING AND POLISHING DISCS

32 POLISHING BURS

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