Sinus-lifts : comment éviter la contamination per-opératoire systématique ?

Abstract

The analysis of scan controls after sinus lifts reveals a lacunar and inhomogeneous aspect, which is considered as “normal”. However, the oral cavity contains a very significant anaerobic flora: our assumption is thus that the contamination of the sinus by the anaerobic germs is unavoidable during the bone graft surgery and that this phenomenon harms largely the quality of its maturation. To validate this theory, a scan control is carried out in the first post-operative days after sinus lift: we then note the presence of gas bubbles in the graft, testifying to anaerobic germs activity. The solution suggested would be to use metronidazole (0.5%) during bone graft procedures. Our study is related to 120 patients. With the use of metronidazole, no infectious complication occurs. The tomodensitometric aspect of all the clinical cases studied in this series is absolutely identical: it is completely homogeneous. The use of metronidazole as surgical additive for sinus lift thus seems a serious and innovating therapeutic opportunity.