Dental Tribune United Kingdom Edition

May 23-29, 2011United Kingdom Edition Tel: 01254 844 103 Call Prestige Medical today and ask for more details. Optima Autoclave 4 times the instrument processing power: • Reduced waiting time • Full colour display • Free installation, commissioning & training of your staff All this PLUS a full 2 year warranty. faster cycles With Flash Steam Technology® Optima: the ultimate vacuum autoclave - where cycle times are halved. E: sales@prestigemedical.co.uk · www.prestigemedical.co.uk See Optima at this year’s BDTA Dental Showcase T he desire to use bone from your own body to build new bone in an- other place is almost as old as humanity itself. We call this procedure autologous bone grafting. In the case of autologous bone grafting the bone is re- moved from the same organism that the graft is to be incorpo- rated in. The body’s own bone cells have the greatest potency for rebuilding of bones and are the gold standard in oral augmentation surgery. Donor areas are: the tuber maxillae, the retromolar space, the chin region or the iliac crest, the ribs or the shin. Gaining the required quantity is sometimes elaborate (large surgical inter- ventions, in patient stay) and afflicted with particular prob- lems, especially when it comes from regions far away from the oral cavity (eg the iliac crest). The extraction of autologous bone grafts from the retromo- lar space find the best accept- ance with patients. Particularly in implantol- ogy lateral augmentations are necessary in more than 75 per cent of cases. These augmenta- tive measures mostly require low bone volumes of less than 0.3mg. If the decision is made intraoperatively, that the pa- tient’s own bone must be used, as a rule the following question must be asked: “Which region should the bone be taken from and how can it be removed quickly?” The retromolar space is chosen here in more than 70 per cent of cases. Until now exclusively block grafts have been used. Case description The 36-year old patient wants the gaps in his teeth in the re- gions 031, 041 to be filled with implants due to his otherwise intact dentition. However, in this situation the question is raised of whether implantation and necessary augmentation of the crestal jaw line can occur synchronously. It was planned for the pa- tient to have autologous bone adhered in the region of the 031 vestibular. Hereby the right retromolar space and the right tuber area were considered as donor areas. The patient could be assured preoperatively that an extraction defect of bone ex- traction would only involve few complaint symptoms. Interop- eratively the crestal incision was begun in the areas 031 and 041. After forming a mini- mally invasive mucoperiosteal flap, in particular region 031 showed strong vestibular atro- phies. Initially implant drilling was carried out and the bore shaft was extended using bone condenser, ie the peri-implan- tational bone was condensed. Subsequently, the implant bod- ies were inserted. Here it be- came obvious that the implant was 2/3 exposed on its vestibu- lar side in region 031. Both im- plants were primarily stable. After measuring the missing bone volume, a stab incision was made in the right retromo- lar. Then a conventional im- plant drill was driven through Bone Harvesting— nice and easy Dr Hohl and Dr Petersen discuss bone harvesting page 14DTà ‘The body’s own bone cells have the greatest potency for rebuilding of bones and are the gold standard in oral augmen- tation surgery.’ Fig 1 Fig 2 Fig 3 Fig 4 Fig 5 Fig 6 Fig 7 Fig 8 Fig 9 Fig 10 Fig 11 Fig 12