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Reducing Bone Loss in Oral Implants

Researchers have found that less bone loss is experienced in an oral implant when a 2-stage approach to surgery is used. Simultaneously inserted im­plants, which require one operation to transplant bone tissue and to insert implants, have shown excellent results. How­ever, when the implants were inserted in a second operation about 6 months after the bone tissue grafts, crestal bone loss was reduced. A retrospective study compared simultaneously inserted implants with de­layed implants. In cases where there was not enough bone tissue to anchor the implant, freeze-dried bone was used as the graft material. The study examined 81 patients with a median age of 52 years, treated between Decem­ber 2003 and December 2006; 17 patients re­ceived grafts and 48 implants in a simultaneous operation, and 64 patients re­ceived a total of 302 implants in a second operation within a mean of 6 months following their graft surgeries. Examina­tion of crestal bone resorption around the im­plant’s neck and specific cutoff values showed the delayed im­plant procedure to have better clinical outcomes by allowing less bone loss. This is important because bone quality of the host (patient) is considered to be a strong predictor for the out­come of the implants. 

(Source: Journal of Oral Implant­ology news release, June 3, 2010)

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