الفهرس 
Problems of the long Kennedy Class IVOnly 14 pages are availabe for public view
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Abstract
This study was conducted to evaluate the effect of the implant supported partial overdenture restoring mandibular long Kennedy class IV on supporting structure both clinically and radiographically Ten partially edentulous patients were selected for this study with age ranging from 40-50 years. All patients have lower six anterior teeth missing (long Kennedy class IV). Each patient was received two dental implants placed in the lower edentulous span at the canine area bilaterally (one in each side) and the ball and socket attachment polycarbonate housing with rubber O-ring) was used between the implant and the overlay removable partial denture for retention. Dentium implant system was used in this study, the implants were made up of titanium alloy with 3mm in diameter and 13mm in length that immediately loaded using flapless implant surgery. Clinical and radiographic evaluations were carried out for every patient before denture insertion and after 3, 6 and 9 months. The clinical evaluation of the cases included the recording of probing depth, gingival level and attachment level around the implants. The radiographic evaluation included the use of specially developed software for measuring the alveolar bone density in gray scales and the bone height in pixels for the implants and the residual alveolar ridges. The developed radiographs were digitized using a flatbed scanner with transparency adapter.