Guided-welded approach planning using a computer-aided designed prosthetic shell for immediately loaded complete-arch rehabilitations supported by conometric abutments.
In guided surgery, implants can be planned from radiographic guide information according to a restoratively driven treatment plan. Unfortunately, the palatal or lingual surface of teeth cannot be easily identified. The present article describes the use of a digitally designed prosthetic shell to improve the accuracy of guided-welded approach planning for immediate restorations supported by conometric abutments. Importing the virtual shell into the planning software provides an effective protocol for using the definitive prosthetic space information to plan the framework shape and position predictably. This method increases the accuracy of virtual planning and reduces the time needed to reline the prosthetic shell.
Surgical guides for flapless dental implant placement and immediate definitive prosthesis installation by using selective laser melting and sintering for 3D metal and polymer printing: A clinical report.
Integration between the phases of computer-based guided dental implant surgery can be used to optimize oral rehabilitation. Two new surgical guides prepared by using the 3D metal and polymer printing technology are presented for immediate implant loading and definitive fixed prosthesis construction in flapless dental implant surgery. Nine implants and 2 fixed prostheses were installed in 2 completely edentulous adult patients by using a metallopolymer surgical guide with a metal central bar attached to a polymer seal or a metal guide. Virtual planning was used to design the 3D-printed surgical guides, which were then constructed by using selective laser sintering (SLM) and selective laser melting (SLS). The 3D-printed surgical guides oriented the surgical placement of the implants and were welded to the abutments and attached to the denture framework. The technique allowed implants and prostheses to be installed on the same day.
Misdiagnosis of OEIS complex as omphalocele in autosite of epigastric heteropagus: a case report and literature review
Heteropagus twins are characterized by an incomplete component (parasite) that is normally smaller and dependent on the relatively complete host (autosite). Epigastric heteropagus refers to the attachment between the parasite and autosite to be in the epigastric region of the autosite. The associated abnormality in the autosite determined the clinical outcome. If the autosite is not associated with an omphalocele, but an OEIS complex (an acronym for omphalocele, exstrophy of the bladder, imperforate anus and spinal defects), the prenatal management is completely different because the prognosis of an OEIS complex is usually poorer than an omphalocele. Herein is reported an autosite associated with an OEIS complex, which was misdiagnosed as an omphalocele prenatally, and analyze similar published cases.