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The International Journal of Oral & Maxillofacial Implants



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Int J Oral Maxillofac Implants 5 (1990), No. 1     1. Mar. 1990
Int J Oral Maxillofac Implants 5 (1990), No. 1  (01.03.1990)

Page 53-60

Clinical Report on the Success of 47 Consecutively Placed Core-Vent® Implants Followed from 3 Months to 4 Years
Malmqvist, Jay P. / Sennerby, Lars
This report presents the clinical outcome of 47 consecutively placed Core-Vent® implants inserted in 35 patients followed for 2 to 4 years by clinical and 3 to 48 months by radiographic examination. The implants were used in mandibles and maxillae to support single crowns, overdentures, and fixed prostheses splinted to natural teeth as recommended by the manufacturer. Of the 47 implants, 43 could be examined. A total of 11 implants was removed, nine because of progressive vertical bone loss and two because of fractures. The vertical bone loss was calculated for the 32 remaining implants. Twenty-eight implants demonstrated a bone loss of more than 2 mm and 16 showed a loss of more than one-third of the implant height. According to the criteria proposed by Schnitman and Shulman in 1979, the total success rate was 37.2%. When using the criteria suggested by Albrektsson et al in 1986, the total success rate was calculated to be 9.3%.

Keywords: bone resorption, clinical examinations, dental implants, radiographs