Clinical Performance of Bioactive Highly Filled Injectable Flowable Composite for Direct Posterior Occlusal Conservative Restorations Using FDI Criteria: Two Year Randomized Clinical Trial

Inclusion Criteria:The inclusion criteria: patient age range from 16-45 years, with a premolar indicated for extraction, patients required at least a couple of Class I restorations. The patient should have good general health. \- Exclusion Criteria:Where the exclusion criteria will be: poor oral hygiene, sever or chronic periodontal disease or bruxism, severe tooth sensitivity, non-vital or fracture or cracked teeth, defective restorations or bleaching procedures during the last 6 months, pregnancy, and/or lactation, and allergy to the main components of the products to be used in the study. \-