Clinical Evaluation of Snow-plowTechnique Versus Bulk Fill Technique in Restorations of Class II Cavities

Class II Dental Caries

The aim of the study is to assess the performance of snow-plow technique as compared to Bulk Fill technique in restoration of class II cavities.

1. With limited evidence-based information about the clinical performance of resin composite in class II cavities. it is beneficial to compare the newly introduced snow-plow' technique using a randomized clinical trial to test the null hypothesis that this new technique has the same clinical performance. 2. The comparator will be the bulk fill technique as an alternative to the conventional layering technique. This is because it has shown lower polymerization shrinkage when comparing it to the conventional composite. Bulk fill has reduced the chair time for the patient. It is done by the application of 4mm increment and cured at once. 3. Patients are selected according to the eligibility criteria discussed in the following section. 4. local anesthesia will be administered and the operative field will be isolated before starting the restorative procedure. A standard class II cavity will be prepared at the two-surface cavities. 5. The preparation will be performed using rotary instrumentation for cavity preparation by a water-cooled high-speed hand-piece by the same operator. 6. The teeth are then restored using one of the two techniques according to their allocation with the same steps discussed in the different arms. 7. The restorations are assessed using the modified USPHS criteria at the time intervals stated in the outcome measures.

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