Background: Comparatively evaluate the accuracy of two different implant impression techniques. Materials & methods: For the present study, reference models used were an edentulous mandibular cast with four implant analogues in the anterior region and a metallic insert in the posterior. Two impression techniques were studied as followed: Group 1: Polyvinyl siloxane impressions (putty and light body) using stock metal tray, and Group 2: Polyether impressions (medium body) using stock metal tray. Connection of the impression posts was done to implant analogues with the screws tightened manually such that their flat surfaces were facing buccally. The longer impression posts were connected to the anterior analogues and shorter were connected to the posterior analogues. A self-calibration test was performed to determine the accuracy obtained by the single evaluator. Results: Mean error among the specimens of Group 1 was 0.0441 while mean error among the specimens of Group 2 was 0.0425 respectively. While comparing the mean error among the two study groups, non-significant results were obtained. Conclusion: From the above results, the authors concluded that both the impression techniques can be used with equal effectiveness in implant procedures.
Background: Dentistry is a continually evolving branch of medicine that is significantly affected by technological developments. The goal of modern implant dentistry is to restore physiological function, comfort, aesthetics, speech, and health to individuals who have missing teeth. The present study was conducted for assessing the salivary titanium levels among patients undergoing dental implants. Materials & methods: A total of 30 patients who underwent dental implant therapy were enrolled in the present study. Complete clinical and demographic details of all the patients were obtained. Another set of 30 healthy subjects were enrolled as control group. All the patients underwent dental implant procedures under the hands skilled and experienced implantologists. Postoperatively after one month, salivary samples were obtained from all the patients of the dental implant group and salivary titanium levels were evaluated. Salivary samples were also obtained from the control group subjects and salivary titanium levels were evaluated and compared. Results: The mean concentration of salivary Titanium among subjects of dental implant group and control group was 158.2 μg/L and 239.8 μg/L respectively. Significant results were obtained while comparing the salivary titanium levels among the subjects of the study group and control group.
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