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J Korean Acad Prosthodont. 2012 Jul;50(3):176-183. Korean. Original Article.
Choi SJ , Yoo JH , Lee KB , Kim JW .
Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu, Korea.
Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University, Daegu, Korea.

PURPOSE: This study examined the clinical success rate of Mg titanate implants (M Implant system, Shinhung, Korea), which employ a Mg coating method, by evaluating the marginal bone loss and implant stability using radiographs and Osstell(R), over a 1 year. MATERIALS AND METHODS: The locations of the implants placement were divided into 4 areas; the maxillary and mandibular premolars and molars. In the maxilla, 8 and 9 implants were inserted in the premolar and molar areas, respectively. In the mandible, 11 and 51 implants were inserted in the premolar and molar areas. Marginal bone loss and ISQ of all implants (79) were measured after insertion, mounting the prosthetic appliance, and 1, 3, 6, and 12 months after loading. The marginal bone loss was measured from the radiograph using XCP bite, which was customized, and the implant stability measured using Osstell(R). Fisher's exact test (alpha=.05) was used to compare the success rates of each region. RESULTS: The mean marginal bone loss for the upper and lower jaws were 1.537 mm and 1.172 mm. The mobility showed a non-significant reduction or increase according with time. The success rates were accounted for 94.12% and 98.39% in the upper and lower jaws; the premolars and molars were accounted for 100% and 96.67%. The two cases of early failure resulted from failure of primary stability during implant insertion. The late failures were not observed for 1 year after adding a loading to the implants. CONCLUSION: The Mg titanate implant showed good primary stability and good clinical results in both healing and function.

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