An Alternative Method for Lateral Sinus Approach With Trephine Design Bur: A Clinical Report

Figure 1. The thickness of lateral wall ranged from 3.0–3.2 mm in a CT scan. Figure 2. Three-mm diameter, dome-shaped drill with depth control cylinder used to approach to sinus membrane. Figure 3. Sinus membrane was elevated with the dome-shaped curette. Figure 4. Spoon-shaped curette extended the undermined area of sinus membrane. Figure 5. Antrostomy was performed with 6-mm diameter trephine design bur. Figure 6. Lateral bone window was formed for sinus graft. Figure 7. Detached bone block was acquired. Figure 8. Removed bone block was crushed and mixed with bovine bone material.