PDF(Pubmed)
Abstract：
UNASSIGNED: Implant success and the state of the surrounding bone require multiple measures, especially in humans, and this study aimed to identify the development of the state of the latter by means of radiographic examination performed during the period of osseointegration as well as investigate the changes in bone density that occur after implant installation and 2 months after functional loading. Implant success rates are affected by bone density at the implant site. Therefore, understanding changes in bone density after dental implant placement is essential, as it correlates with subsequent implant success.
UNASSIGNED: Digital radiographs of 28 implants were taken and evaluated at four intervals: preoperatively, 1 and 3 months postoperatively, and 2 months following placement of the permanent prosthesis. Gray values were measured in different areas around the implants through analyzing X-ray images and measuring bone density around the implants using EzDent - 2D software. The aim of this study was to investigate changes in bone density around implants in three regions: apex, neck, and body, as well as to record average density values during the observation period by measuring digital image gray levels (the gray values of the digital radiographs). This was conducted to determine local bone densities in dental implant recipient sites and to study changes in local bone densities at different intervals, preoperatively and postoperatively and after placement of the prosthesis.
UNASSIGNED: A decrease was observed in gray values proportional to reference values 1-month after implant insertion, but these increased at 3 months after insertion and continued to rise 2 months after placement of the prosthesis in the apical, body, and neck regions of the implant.
UNASSIGNED: Sensor-tuned radiography can be used as an effective method to support clinical follow-ups as well as measure changes in bone densities around implants in critical cases.
UNASSIGNED: Digital radiographs of 28 implants were taken and evaluated at four intervals: preoperatively, 1 and 3 months postoperatively, and 2 months following placement of the permanent prosthesis. Gray values were measured in different areas around the implants through analyzing X-ray images and measuring bone density around the implants using EzDent - 2D software. The aim of this study was to investigate changes in bone density around implants in three regions: apex, neck, and body, as well as to record average density values during the observation period by measuring digital image gray levels (the gray values of the digital radiographs). This was conducted to determine local bone densities in dental implant recipient sites and to study changes in local bone densities at different intervals, preoperatively and postoperatively and after placement of the prosthesis.
UNASSIGNED: A decrease was observed in gray values proportional to reference values 1-month after implant insertion, but these increased at 3 months after insertion and continued to rise 2 months after placement of the prosthesis in the apical, body, and neck regions of the implant.
UNASSIGNED: Sensor-tuned radiography can be used as an effective method to support clinical follow-ups as well as measure changes in bone densities around implants in critical cases.
摘要：
■植入成功和周围骨骼的状态需要多种措施，尤其是在人类中，这项研究旨在通过在骨整合期间进行的影像学检查来确定后者状态的发展，并调查植入物安装后和功能负荷后2个月发生的骨密度变化。植入成功率受植入部位的骨密度影响。因此,了解种植牙放置后骨密度的变化至关重要，因为它与随后的植入成功相关。
■以四个间隔对28个植入物进行了数字射线照片和评估：术前，术后1个月和3个月，和放置永久性假体2个月后。通过分析X射线图像并使用EzDent-2D软件测量植入物周围的骨密度，测量植入物周围不同区域的灰度值。这项研究的目的是调查三个区域植入物周围骨密度的变化：脖子,和身体,以及通过测量数字图像灰度（数字射线照片的灰度值）来记录观察期间的平均密度值。进行此操作是为了确定牙科植入物受体部位的局部骨密度，并研究不同时间间隔的局部骨密度变化。术前和术后以及放置假体后。
■植入物插入后1个月，观察到灰度值与参考值成正比的下降，但是这些在插入后3个月增加，并在将假体放置在根尖后2个月继续上升，身体,和植入物的颈部区域。
■传感器调谐射线照相可作为一种有效的方法来支持临床随访以及在危重情况下测量植入物周围骨密度的变化。
■以四个间隔对28个植入物进行了数字射线照片和评估：术前，术后1个月和3个月，和放置永久性假体2个月后。通过分析X射线图像并使用EzDent-2D软件测量植入物周围的骨密度，测量植入物周围不同区域的灰度值。这项研究的目的是调查三个区域植入物周围骨密度的变化：脖子,和身体,以及通过测量数字图像灰度（数字射线照片的灰度值）来记录观察期间的平均密度值。进行此操作是为了确定牙科植入物受体部位的局部骨密度，并研究不同时间间隔的局部骨密度变化。术前和术后以及放置假体后。
■植入物插入后1个月，观察到灰度值与参考值成正比的下降，但是这些在插入后3个月增加，并在将假体放置在根尖后2个月继续上升，身体,和植入物的颈部区域。
■传感器调谐射线照相可作为一种有效的方法来支持临床随访以及在危重情况下测量植入物周围骨密度的变化。
