The aim of this study is to evaluate the interdental separation of various separation systems and their impact on the proximal contact tightness and contour in compound class II nanohybrid resin composite restorations.
Individuals with posterior compound proximal carious cavities in molars.
Age of (25-40) years.
Molars with compound proximal carious cavities score 4 or 5 ICDS.
Vital upper or lower posterior teeth with no signs of irreversible pulpitis.
Patients with major systemic disorders or xerostomia.
Patients with periodontal disease.
Patients with para-functional habits.
Presence of malocclusion or signs of pathological teeth wear