In recent years, dental implant rehabilitation has faced demands from prosthetic and esthetic arenas that call for increasingly ideal outcomes, which require precise surgical planning and placement. Anatomic limitations and bone quantity and quality can now be evaluated using more sophisticated radiographic techniques, although transferring this information to the surgical phase has been at best a difficult task. Recently, computer-aided design and manufacturing have made it possible to use data from computerized tomography to not only plan implant rehabilitation, but also to transfer this information to the surgery. One of these techniques uses stereolithography, a laser-driven polymerization process that fabricates an anatomic model and surgical templates. This novel approach is illustrated with two advanced cases, demonstrating that the technique not only allows for the precise translation of the treatment plan directly to the surgical field, but also offers many significant benefits over traditional procedures.
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View Article and Find Full Text PDFPeri-implant soft tissue conditioning of immediate posterior implants by CAD-CAM socket sealing abutments: a randomized clinical trial.
BMC Oral Health
January 2025
Department of Fixed Prosthodontics, Faculty of Dentistry, Cairo University, Cairo, Egypt.
Background: Anatomically formed healing abutments were suggested in literature to address many of the issues associated with immediate posterior implant insertion such as large extraction sockets that are extremely hard to seal without reflecting the mucoperiosteal flap, extraction sockets anatomy that are not suitable for regular healing abutment placement, and potentially high occlusal stresses when planning a temporary implant supported prothesis to improve the conditioning of supra implant tissue architecture and the emergence profile of the implant supported restorations.
Purpose: To clinically evaluate the peri-implant soft tissue profile of single posterior implant retained restorations and to assess patient related outcomes of the implant restorations that were conditioned immediately by CAD-CAM socket sealing abutments (SSA) versus those conditioned by Titanium (Ti) standard healing abutments (SHA).
Methods: Twenty participants received twenty-two single maxillary immediate implants after flapless minimally invasive tooth extraction and 3D guided implant placement in the posterior area (premolar and molar) and allocated randomly into two groups (n = 11), the intervention group: patients received PEEK SSA and the control group: the patients received Ti SHA.
Primary-lobe-based trilobed and quadrilobed flaps for reconstruction of nasal tip skin defects.
JPRAS Open
March 2025
Department of Plastic and Craniofacial Surgery, MITERA Hospital, Hellenic Healthcare Group (HHG), 6 Erithrou Stavrou str., 151 23 Maroussi, Attica, Greece.
Background: Despite a variety of principles proposed for drawing trilobed and quadrilobed flaps for the reconstruction of nasal skin defects, the application of these principles in a detailed and reliable way remains questionable.
Methods: We present a novel method for drawing trilobed and quadrilobed flaps to cover nasal tip skin defects. The method is based on the use of templates corresponding to four trilobed flaps with overall angles of 60°, 70°, 80°, and 90°, and two quadrilobed flaps with angles of 90° and 105°.
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World J Radiol
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Department of Ultrasound, First Affiliated Hospital, Hainan Medical University, Haikou 570102, Hainan Province, China.
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