مدرس المادة
Class II restoration involves the proximal (mesial or distal) surfaces of premolars and molars. It termed MO; mesioocclusal, DO; disto-occlusal, or MOD; mesio-occluso-distally cavity. Outline of proximal preparations is controlled by the following factors: 1.Caries susceptibility of the patient 2.Age of the patient. 3.Position of gingiva 4.Extent of the caries on the proximal side 5.Dimensions of the contact area 6.Masticatory forces 7.Esthetic requirement of the patient................
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