Acrylic Customized X-Ray Positioning Stent for Prospective Bone Level Analysis in Long-Term Clinical Implant Studies

• 作者: Ana Messias Fernando Guerra Jo?o Paulo Tondela Pedro Nicolau Rita Reis Salom?o Rocha
• 来源期刊: 放射学期刊(英文)
• 学科: 医学
• 关键词: DENTAL Radiovisiography RADIOGRAPH DENTAL IMPLANT Outcome Measurement Errors REPRODUCIBILITY of Results
• 年，卷（期）: 2013,（3）
• 页码范围: 136-142
• 页数: 7页
• 分类号: R73

摘要

Objectives: This paper describes a technique to produce individualized X-ray positioning devices for intraoral digital imaging of dental implants with long-term stability. Materials and Methods: An X-ray positioning device was built for Gendex? Visualix? eHD sensor, using the Dentsply rinn XCP-DS? system individualized by the incorporation of the bite piece within an acrylic stent to perform successive standardized radiographs to 16 patients. X-ray tube stabilization was achieved with polivinylsiloxane. Series of 3 radiographs were taken to each patient in different moments. Specific linear measurements as the implant diameter (mesio-distal width) and the height between consecutive threads (thread pitch) were made to all radiographs to determine the reproducibility and accuracy of the procedure. Results: The intraclass correlation coefficient for the mesio-distal width was 0.964 [(0.920 - 0.986) 95% CI] (p 0.00156 mm for the test value of 3.3 (p = 0.9), -0.00026 mm for 0.8 (p = 0.96) and 0.0124 for 4.125 (p = 0.72), respectively, after the application of a magnification correction factor. Conclusion: The device produced reproducible images in different moments and was suitable for comparative clinical examinations of marginal bone as it was convenient to perform reliable linear measurements.