Immediate Loading of Implant-Supported Single Crowns after Conventional and Ultrasonic Implant Site Preparation: A Multicenter Randomized Controlled Clinical Trial

Figure 3

Internal hex implants with a sandblasted/etched surface (Premium AZT, Sweden & Martina, Italy), measuring 3.8x11.5 mm, were inserted in all sites at crestal level with healing abutment of reduced diameter (3.3 mm).