Treatment Techniques for Oroantral Communications and Fistulas.

Homogenous Bone Grafts as an Alternative in Oral Rehabilitation Treatments with Dental Implants

“…Numerous researches are carried out in order to affirm which the ideal implant material would be, to replace the autogenous graft (Bettin et al;Hardin;Logeart-Avramoglou et al;Begam et al;Kim et al;Lima et al, 2017;Santos et al;Windhager et al;Aljohani et al;Lima et al, 2018b;Proêza et al;Moussa & Dym). However, this is still one of the greatest challenges of implantology, due to the lack of an ideal graft material; for that, this type of material must follow seven principles: 1) unlimited supply without compromising the donor area; 2) promote osteogenesis; 3) not showing an immune response from the host; 4) revascularize quickly; 5) stimulate osteoinduction; 6) promote osteoconduction; 7) be completely replaced by bone in quantity and quality similar to that of the host (Bettin et al;Hardin;Logeart-Avramoglou et al;Pinto et al;Tolstunov, 2009;Kim et al;Lima et al, 2017;Windhager et al;Aljohani et al;Jo et al, 2018;Lima et al, 2018a;Prando et al, 2018;Albanese et al, 2019;Moussa & Dym;Matos et al, 2019).…”

“…Despite being a challenge, autogenous grafts are elected as the first choice, either for their efficiency, biosafety or ease of obtaining them. Thus, the use of bone grafts represents a viable alternative in the attempt to regenerate lost bone tissue (Tolstunov; Jo et al;Lima et al, 2018b;Prando et al;Albanese et al).…”

“…With regard to bone behavior, the bone proceeds in several ways, which are Osteogenic: it refers to the biomaterial's capacity to take viable bone cells to the recipient bed; Osteoinductive: refers to the biomaterial's ability to induce undifferentiated mesenchymal cells in the recipient bed to differentiate into osteoblasts; Osteoconductive: refers to the biomaterial's capacity to act as a framework for bone neoformation in the recipient bed, allowing cell migration and blood vessel proliferation into the biomaterial (Pinto et al, 2007;Egusa et al, 2012;Lima et al, 2018b;Matos et al, 2019).…”

“…The bones used as a graft in the jaw regions are in most cases, obtained from the individual himself, removed from the anterior part of the mandible where there are no noble structures to be damaged by the process of obtaining the graft (Roos et al, 2000;Pinto et al, 2007;Lima et al, 2017;Lima et al, 2018b). When the amount of this biomaterial is not sufficient to cover the entire area to be grafted, it is necessary to obtain material previously stored in suitable places called bone bank (Tomford et al, 1983;Stefani et al, 1989;Roos et al).…”

Oroantral communication closure with Bichat adipose body: etiology, clinical and radiographics features

“…This fistula may occur due to an aggressive surgical technique, excess alveolar curettage after extraction and also to other less frequent etiological factors that cause a oroantral fistula, such as destruction of the sinus by periapical lesions and removal of cysts and/or palate or maxillary sinus tumors 4 .…”