The surface of implants in group D has weak fluorescent staining, sparse bone trabeculae, few double marking lines, and the distance cannot be opened, as shown in Figure 9d
Group D implant surface fluorescent staining is weak, bone girder sparse, less double marking lines, and the distance can not be pulled apart, see Figure 9d
In group D, the fluorescence staining of implant surface was weak, the bone trabeculae were sparse, the double mark lines were few, and the distance could not be pulled apart, as shown in Figure 9D