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Objective: To analyze the amount of crestal bone loss in maxilla and mandible around Bredent Sky Blue implants of different dimension a year after implantation. Material and Methods: 36 implants diameter 3.5 x 10 mm were inserted in the maxilla and 12 in the mandible. 52 implants diameter 4.0 x 8 mm were inserted in the maxilla, and 61 in the mandible (two-stage implant surgery). The data were analysed using the IBM SPSS v.17 software package (descriptive statistics, ANOVA -test). Results: No statistically significant differences were found between maxilla right, maxilla left, mandible right and mandible left side at implant sites regarding distal and mesial bone losses. Statistically significant differences were found between maxilla front, maxilla posterior, mandible front and mandible posterior at implant sites regarding distal and mesial bone losses. Conclusion: This study showed more bone loss for anterior implants compared to the posterior ones, but there was no significant different bone loss between maxillary and mandibular implants regarding sites.

Objective: To analyze the amount of crestal bone loss of the mandible around implants of different diameters one year after implantation. Material and Methods: The study included a total of 42 male and female patients. A total of 73 implants were evaluated (12 implants of diameter 3.5 x 10 mm and 61 implants of diameter 4.0 x 8 mm). Dental panoramic radiographs were made before surgery, immediately after surgery and one year later. The measurements were performed using Kodak dental software 6.11.7.0 after implantation and one year later. The data were analyzed using the IBM SPSS v.17 software package (descriptive statistics, paired samples t-test). Results: Among male patients, 43.5% were smokers, while among females, 57.9% were nonsmokers. Crestal bone resorption was greater mesially than distally, although differences were not statistically significant (p<0.05). Conclusion: All implants showed successful tissue integration. Crestal bone resorption was greater mesially than distally, although differences were not statistically significant.