Comparison of Postoperative Sensitivity in Posterior Teeth Using Conventional and Bulkfill Composites

The study will include 79 patients with class 1 carious mandibular molars. Teeth are divided into two groups based on composite placement techniques. In group 1, 39 patients are restored with conventional nanohybrid composites using an incremental layering technique. In group 2, 40 patients are restored with bulk-fill composites containing a single increment. After taking a brief history, informed consent will be taken from patients. The depth of the cavity will be determined using a periodontal probe not extending more than 3 mm. Preoperatively, pulp vitality will be assessed using the cold thermal test. A preoperative radiograph will also be taken. A rubber dam will be used. The cavity will be prepared and a selective etch technique will be used. Patients will be recalled after 24 hours and 1 week, thermal cold tests will be performed and a questionnaire containing the Numerical Rating Scale will be given to each patient for evaluation of post-operative pain felt after 24 hours and 1 week.

Inclusion criteria

• 1. Patients with ages range from 18- 55 years. 2. Male/ Female. 3. Mandibular molars with class 1 shallow-sized cavity with no history of pre-operative pain or sensitivity.

• Ability to understand the use of pain and sensitivity scale. 5. Patients with adequate oral hygiene and willingness to participate in this study.

Exclusion criteria

• 1. Patients with deep caries of tooth associated with pain and sensitivity. 2. Patients who have consumed any type of medication before treatment. 3. Periapical pathologies (periapical abscess, sinus tract, periapical cyst, pulpal abscess.

• Unfavorable location of the tooth, severe tooth malposition, and trismus.