Home / Treatment With ORLUS / Problems and Solution   Injury of periodontal tissue Orthodontic implants placed in interdental areas can cause direct or indirect injury to periodontal tissue (figure 7). Root injury during implantation is rare, but is very often fatal. The root damage itself may be reversible, but the root can be cracked by an implant, which could give rise to irreversible damage of periodontal attachments. The protocol for preventing root damage completely resolves these problems(Vol.1 tx planning surgical procedure,p6). Fig. 7 The orthodontic implant was removed (b) because it came into contact with the tooth root (a) after the teeth had moved intrusively and distally. After the root was removed, a normal probing depth was confirmed. Because anatomical structures, such as alveolar bone and teeth roots, are three-dimensional structures, the orthodontic implants hardly come into direct contact with the roots of the teeth at oblique insertion. Even if they do come into contact, the damage may recover spontaneously