Comparison Of Modified Crestal And Lateral Approaches In Sinus Lift

To evaluate the clinical outcomes of modified crestal and lateral approaches in maxillary sinus lift. Fifty patients with single missing posterior maxillary teeth and severe bone deficiency (residual bone height <5 mm) requiring implant placement were selected from a tertiary hospital’s dental department between January and December 2023. Patients were randomly assigned to the modified crestal sinus lift group (experimental group) or the lateral window sinus lift group (control group). Behavioral cognition was assessed using the Hospital Anxiety and Depression Scale (HADS), postoperative pain was quantified using the Visual Analog Scale (VAS), and wound healing was graded. Bone gain was evaluated by grafted bone height (GBH), and implant success rate and complication incidence were recorded. The t-test was used for intergroup comparisons, and categorical data were analyzed using the chi-square test. Statistical significance was set at p < 0.05. Significant differences were observed between the experimental and control groups in pre- and postoperative behavioral cognition, operative time, and wound healing scores (p < 0.05). No significant differences were found in bone gain, implant success rate, or complication incidence. Both techniques achieved similar bone gain. However, the modified crestal sinus lift, with less trauma, showed advantages over the lateral window approach in behavioral cognition, postoperative pain, and healing. This suggests the need to further explore minimally invasive refinements while considering patient cognition for improved clinical applications.