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Instructions for Clinic
Dr. Marwa Elsharkasi
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Reference Chapter 5 Pages : 150 – 162
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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
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Class II Preparations involving the proximal surfaces of posterior teeth
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Class III Preparations involving the proximal surfaces of anterior teeth that do not include angle
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Class IV Preparations involving the proximal surfaces of anterior teeth that include the incisal edge
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Class V Preparations on gingival third of the facial or lingual surfaces of all teeth
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Class VI Preparations on the incisal edges of anterior teeth or occlusal cusp tips of posterior teeth
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Conservative Cavity Preparation
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Conservative cavity preparation Vs GV black preparation
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Conservative cavity preparation
G.V. black preparation Conservative cavity preparation Cervical margin located subginigivally Break proximal contacts allows passage of enamel hatchet Width allows straight continuity between isthmus and proximal box 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
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Box Preparation
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Box only preparation
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Box preparation 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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Tunnel Preparation
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Tunnel preparation It is a modified preparation for conserving tooth structure It allow the preservation of the marginal ridge of proximal cavities
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Dental Caries Deep cavity Indirect pulp capping Management of Deep caries Superficial & moderate cavity Restorations
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Burs for cavity preparation
#329, 330 pear shaped bur
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Burs for cavity preparation
Fissure carbide Burs ( large, small )
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Bur for deep carious lesions
Large dull Round bur in low speed handpiece
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Burs for finishing composite
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Burs for finishing composite
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Burs for finishing composite
Best for finishing occlusal composite, Lingual surfaces of Anterior teeth
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Burs for finishing composite
Best for finishing occlusal composite, Lingual surfaces of Anterior teeth
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For cervical margin composite and And removing overhanging composite
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Finishing composite on anterior teeth
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Finishing and polishing discs For anterior teeth
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Finishing and polishing discs
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Polishing burs
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Polishing burs
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