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Tibia as a donor site for autogenous bone in oral implantology
1012
Implantology
placing the implant but also cause an unaesthetic restoration that may be difficult to clean and maintain. Thus, it becomes critical to set the Bone Tone to achieve good form, function and aesthetics of the implant restoration. The gold standard Block Grafts have given excellent results over a period of time. This presentation will discuss various clinical situations with indications in which a new technique Sandwich Grafting with simultaneous implant placement for successful and predictable implant restorations. doi:10.1016/j.ijom.2007.08.085
O7.5 Tibia as a donor site for autogenous bone in oral implantology S. Bhatnagar*, A. Navaneetham, J.A. Chokanda Department of Maxillofacial Surgery, M.R. Ambedkar Dental College and Hospital, 1/36 Cline Road, Cooke’s Town, Bangalore, India Objective: To justify the choice of Tibia as a source of autogenous bone for augmentation of bone volume in oral implantology. Methods: A prospective study done on 20 patients using tibial bone for: 1. periimplant deficits, 2. extraction socket preservation, 3. maxillary sinus augmentation, 4. interpositional grafting. Bone was harvested using motor driven trephine/Peizoelectric drill. Post-operatively patients were followed up and assessed clinically and radiographically. Results: 1. Total number of patients – 20, procedure under local anaesthesia – 12, procedure under general anaesthesia – 8, 2. sinus augmentation – 12, socket preservation – 4, periimplant deficit – 2, interpositional graft – 2, 3. patients were ambulatory and comfortable with in first 24 h, except in one case. 4. None of the patients had complaints regarding the scar along the incision line. Conclusion: This technique can be carried out with equal efficacy under general anaesthesia or local anaesthesia with minimal complications. The judicious use of tibial bone as choice of graft for augmentation of bone in oral implantology is justified when indicated. doi:10.1016/j.ijom.2007.08.086
O7.6 Augmentation of the maxillary sinus floor with bovine bone grafts in humans: a histologic and histomorphometric study
F. Cabbar*, N. Guler, M. Kurkcu Yeditepe University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Istanbul, Turkey The aim of this study present the results of 15 patients treated with unilateral bone augmentation of the maxillary sinus floor using the Unilab Surbone granulated bovine xenografts. The inclusion criterion was that less 5 mm of alveolar bone in the floor of the sinus. Endosseous titanium implants were placed 6 months after the grafting procedure. Bone biopsy specimens were obtained from the grafted site 6 months of healing at the time of implant placement. Radiographic analysis was realized by pre-post operative panoramic-rx. All specimens were evaluated with an ˜ — images were transOlympus and 4A ferred to a computer and the WinTAS program. Trabecular bone volume (BV/ TV), trabecular bone number (Tr.N), and trabecular separation (Tr.Sep) were measured by using the software package developed for bone histomorphometry. The vertical dimension of the bone graft remained optimum and no radiolucent areas were showed. Histologic analysis showed that new bone formation was observed all samples. Histomorphometric results revealed a higher percentage of bone contact with bovine xenografts. Statistically significant differences were observed in BV/TV (P < 0.05) and Tr.Sep (P < 0.05) parameters. The augmented sinus floor bone is strong and suitable for anchorage of dental implants for six months after insertion of bovine bone grafts. doi:10.1016/j.ijom.2007.08.087
O7.7 Clinical course of titanium miniplate implants for orthodontic anchorage E. Imamura*, Y. Itsuki, Y. Hamada, Y. Isoda, T. Kamikura, K. Seto Department of Oral and Maxillofacial Surgery, Yokohama General Hospital, Yokohama, Japan Purpose: The objectives were to investigate clinical course of implant anchor (plate type) for orthodontic treatment. Materials: Three hundred and thirty-four orthodontic implants of 118 patients aged from 15 to 43 years (average 28.1) were enrolled in this study. This study included two miniplate appliances for orthodontic treatment. We placed these implants to the buccal side of maxilla and mandible and did follow up from 12 to 45 months during treatment period. Direction of teeth movement was
mostly distal movement and intrusion. We examined it about infection, looseness and other complications during orthodontic treatment and evaluated its efficacy as anchorage. Results: Peri-implantitis was occurred in 78 sites (23.4%) and antibiotics were given to 55 cases (46.6%). In that, cellulitis was occurred in six cases. Looseness of plate was found in 13 sites and replacement in five sites and removal in one site in that. However, we could use it as orthodontic anchor in 113 cases (95.6%). Conclusion: Titanium plate appliance for orthodontic treatment is useful as anchorage. However infection often occurs around implant because it was placed on movable mucosa. We need a consideration to infection and careful observation using these mini-plate appliances. doi:10.1016/j.ijom.2007.08.088
O7.8 Clinical evaluation of the function for ten years following placement of dental implants with bone Y. Okamoto*, K. Eizabura, M. Izumi Department of Oral and Maxillofacial Surgery II, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata, Japan The bone grafts were performed before or at the same time of installation of dental implants in 211 patients in our department at the University Hospital over 16 years (1989 to 2005) and discussed, respectively. Ten patients, four men and six females, have already exceeded 10 years after surgeries. Selected bone grafts were all autogenous bones harvested from mandibular chin and buccal bone around wisdom tooth, iliac PCBMs or bone blocks, revascularized iliac, scapular and fibular flaps. A total of 62 implants were placed in the grafted bone and 93.5% were successful. doi:10.1016/j.ijom.2007.08.089
O7.9 Immediate endosseous implant stability placed in fresh extraction sockets—a short term evaluation G. Singh*, M. Goyal Santosh Dental College, Ghaziabad, NCR, Delhi, India Immediate dental implants provide a host of benefits over, the conventional protocol by maintaining bone topography, lessening the number of surgical procedures and
Implantology
placing the implant but also cause an unaesthetic restoration that may be difficult to clean and maintain. Thus, it becomes critical to set the Bone Tone to achieve good form, function and aesthetics of the implant restoration. The gold standard Block Grafts have given excellent results over a period of time. This presentation will discuss various clinical situations with indications in which a new technique Sandwich Grafting with simultaneous implant placement for successful and predictable implant restorations. doi:10.1016/j.ijom.2007.08.085
O7.5 Tibia as a donor site for autogenous bone in oral implantology S. Bhatnagar*, A. Navaneetham, J.A. Chokanda Department of Maxillofacial Surgery, M.R. Ambedkar Dental College and Hospital, 1/36 Cline Road, Cooke’s Town, Bangalore, India Objective: To justify the choice of Tibia as a source of autogenous bone for augmentation of bone volume in oral implantology. Methods: A prospective study done on 20 patients using tibial bone for: 1. periimplant deficits, 2. extraction socket preservation, 3. maxillary sinus augmentation, 4. interpositional grafting. Bone was harvested using motor driven trephine/Peizoelectric drill. Post-operatively patients were followed up and assessed clinically and radiographically. Results: 1. Total number of patients – 20, procedure under local anaesthesia – 12, procedure under general anaesthesia – 8, 2. sinus augmentation – 12, socket preservation – 4, periimplant deficit – 2, interpositional graft – 2, 3. patients were ambulatory and comfortable with in first 24 h, except in one case. 4. None of the patients had complaints regarding the scar along the incision line. Conclusion: This technique can be carried out with equal efficacy under general anaesthesia or local anaesthesia with minimal complications. The judicious use of tibial bone as choice of graft for augmentation of bone in oral implantology is justified when indicated. doi:10.1016/j.ijom.2007.08.086
O7.6 Augmentation of the maxillary sinus floor with bovine bone grafts in humans: a histologic and histomorphometric study
F. Cabbar*, N. Guler, M. Kurkcu Yeditepe University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Istanbul, Turkey The aim of this study present the results of 15 patients treated with unilateral bone augmentation of the maxillary sinus floor using the Unilab Surbone granulated bovine xenografts. The inclusion criterion was that less 5 mm of alveolar bone in the floor of the sinus. Endosseous titanium implants were placed 6 months after the grafting procedure. Bone biopsy specimens were obtained from the grafted site 6 months of healing at the time of implant placement. Radiographic analysis was realized by pre-post operative panoramic-rx. All specimens were evaluated with an ˜ — images were transOlympus and 4A ferred to a computer and the WinTAS program. Trabecular bone volume (BV/ TV), trabecular bone number (Tr.N), and trabecular separation (Tr.Sep) were measured by using the software package developed for bone histomorphometry. The vertical dimension of the bone graft remained optimum and no radiolucent areas were showed. Histologic analysis showed that new bone formation was observed all samples. Histomorphometric results revealed a higher percentage of bone contact with bovine xenografts. Statistically significant differences were observed in BV/TV (P < 0.05) and Tr.Sep (P < 0.05) parameters. The augmented sinus floor bone is strong and suitable for anchorage of dental implants for six months after insertion of bovine bone grafts. doi:10.1016/j.ijom.2007.08.087
O7.7 Clinical course of titanium miniplate implants for orthodontic anchorage E. Imamura*, Y. Itsuki, Y. Hamada, Y. Isoda, T. Kamikura, K. Seto Department of Oral and Maxillofacial Surgery, Yokohama General Hospital, Yokohama, Japan Purpose: The objectives were to investigate clinical course of implant anchor (plate type) for orthodontic treatment. Materials: Three hundred and thirty-four orthodontic implants of 118 patients aged from 15 to 43 years (average 28.1) were enrolled in this study. This study included two miniplate appliances for orthodontic treatment. We placed these implants to the buccal side of maxilla and mandible and did follow up from 12 to 45 months during treatment period. Direction of teeth movement was
mostly distal movement and intrusion. We examined it about infection, looseness and other complications during orthodontic treatment and evaluated its efficacy as anchorage. Results: Peri-implantitis was occurred in 78 sites (23.4%) and antibiotics were given to 55 cases (46.6%). In that, cellulitis was occurred in six cases. Looseness of plate was found in 13 sites and replacement in five sites and removal in one site in that. However, we could use it as orthodontic anchor in 113 cases (95.6%). Conclusion: Titanium plate appliance for orthodontic treatment is useful as anchorage. However infection often occurs around implant because it was placed on movable mucosa. We need a consideration to infection and careful observation using these mini-plate appliances. doi:10.1016/j.ijom.2007.08.088
O7.8 Clinical evaluation of the function for ten years following placement of dental implants with bone Y. Okamoto*, K. Eizabura, M. Izumi Department of Oral and Maxillofacial Surgery II, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata, Japan The bone grafts were performed before or at the same time of installation of dental implants in 211 patients in our department at the University Hospital over 16 years (1989 to 2005) and discussed, respectively. Ten patients, four men and six females, have already exceeded 10 years after surgeries. Selected bone grafts were all autogenous bones harvested from mandibular chin and buccal bone around wisdom tooth, iliac PCBMs or bone blocks, revascularized iliac, scapular and fibular flaps. A total of 62 implants were placed in the grafted bone and 93.5% were successful. doi:10.1016/j.ijom.2007.08.089
O7.9 Immediate endosseous implant stability placed in fresh extraction sockets—a short term evaluation G. Singh*, M. Goyal Santosh Dental College, Ghaziabad, NCR, Delhi, India Immediate dental implants provide a host of benefits over, the conventional protocol by maintaining bone topography, lessening the number of surgical procedures and