Effects of implant design and surface roughness on crestal bone and soft tissue levels in the esthetic zone.

摘要: PURPOSE To evaluate the effects of implant geometry and collar macrostructure microstructure on crestal bone height, mobility values, attachment levels using two different types radiographic analysis. MATERIALS AND METHODS Subjects included in this study were those who had single-tooth implants restored maxillary esthetic zone. Bone measured from implant-abutment (IA) interface standardized radiographs at baseline after 5 years digital standard methods. The method converted into three-dimensional models based radiodensity so that could be measured. Clinical Periotest values recorded all data analyzed statistically. RESULTS position IA for rough-collar group was a mean -0.61 +/- 0.08 mm it -1.55 0.10 smooth-collar (-1.96 0.16 with stepped -0.85 0.19 straight collar). level change over 5-year period rough -0.19 0.09 -0.36 0.06 smooth implants. relative to time surgery influenced changes significantly. There statistically significant differences clinical depending location length. CONCLUSIONS Implants collars less loss interval than collars. greater when placed further subcrestal. digitally significantly more precise evaluating levels. These findings suggest surface roughness may play role