OBJECTIVE Percutaneous cochlear implantation (PCI) surgery uses patient-specific customized microstereotactic frames to achieve a single drill-pass from the lateral skull to the cochlea, avoiding vital anatomy. We demonstrate the use of a specific microstereotactic frame, called a "microtable," to perform PCI surgery on cadaveric temporal bone specimens. STUDY DESIGN Feasibility study using c...

Rise in temperature is inevitable orthopaedic drilling. Massive research had beendone the field of drilling to investigate effect cutting conditions, bone relatedparameters, and drill bit geometric parameters on heat generation minimum surrounding tissuesinjury. In present research, contradictory conclusions regarding conditions bitgeometric were observed. Minimum 31°C was achieved at speed 186...

Threaded and smooth pins are often used in orthopedic surgery. Although uncommon, injury to the soft tissues can and do occur, including nerve or vessel injury from aberrant pin placement. The purpose of this study was to compare the risk of nerve injury from threaded pins versus smooth guide pins due to: (1) past-point-drilling of the pin, or (2) entanglement of the pin with soft tissue. Past-...

Aim: The bone particles harvested during osteotomy could be used as autogenous bone graft materials to correct a bony defect prior to implant placement. Methods: A simple surgical procedure was described in which autogenous bone was harvested from the drills during the preparation of implant sites. Eleven samples were obtained from bone drilling during fi xture installation in 11 patients (5 me...

objectives: implant primary stability is one of the important factors in achieving implant success. the osteotome technique may improve primary stability in patients with poor bone quality. the aim of this study was to compare implant stability using two different techniques namely osteotome versus conventional drilling in the posterior maxilla. materials and methods: in this controlled randomi...

The accuracy of surgical drilling guides was assessed for placement of zygoma implants. Six zygoma fixtures of length 45 mm (Nobel Biocare, Göteborg, Sweden) were placed in three formalin-fixed human cadavers using surgical drilling guides. The fabrication of these custom-made drilling guides was based on three-dimensional computerized tomography (3D-CT) data for the maxillary-zygomatic complex...

context a key determinant for clinical success is the diagnosis of the bone density in a potential implant site. the percentage of bone-implant contact is related to bone density, and the axial stress contours around an implant are affected by the density of bone. evidence acquisition a number of reports have emphasized the importance of the quality of bone on the survival of dental implants. t...

Edentulism is a condition that results in the partial or total loss of teeth. It may lead to problems during chewing and be cause self-isolation low self-esteem. can resolved both with removable prostheses (dentures) fixed implants, latter being more efficient. The installation implant involves real surgical operation which jaw/mandibular bone drilled through special drill. One main cautions su...

To identify factors that minimise damage during the drilling of sites for dental implants, we reviewed published papers on the amount of heat that is generated. We systematically searched English language studies published between January 2000 and February 2014 on MEDLINE/PubMed and found 41 articles, of which 27 related to an increase in temperature during preparation of the site. We found onl...

Cochlear implantation is a surgical procedure for treating patients with hearing loss in which an electrode array is inserted into the cochlea. The traditional surgical approach requires drilling away a large portion of the bone behind the ear to provide anatomical reference and access to the cochlea. A minimally-invasive technique, called percutaneous cochlear implantation (PCI), has been prop...