Prophylaxie et orthodontie : Zoom sur l’espace interdentaire

The interdental space constitutes a unique ecological niche conducive to the accumulation of disrupting biofilm. In ado- lescents and young adults, these spaces harbor periodontal pathogenic bacteria. The anatomy of type I interdental embra- sure, observed at these ages, prevents access to traditional cleaning devices such as toothbrushes and mouthwashes. Likewise, braces and orthodontic wires can complicate access to the spaces by impacting the inflammation and hyper- plasia of the papillae. Orthodontic treatment alters the posi- tion of the teeth and, consequently, the interdental spaces. This dynamic neces- sitates continuous adaptation of cleaning devices. Calibrated interdental brushes allow for the disruption of biofilm on the entirety of dental and gingival surfaces and are adapted to the anatomical variations induced by the treatment. In conclusion, suitable interdental hygiene, supervised and taught by health- care professionals – orthodontists and general practitioners – is imperative to prevent microbial imbalances, facilitate the healing and regeneration of gingival and osseous tissues, minimize the compli- cations of orthodontic treatments that can influence the duration and effectiveness of care. Adapted to the specific needs of patients, brushes represent an effective technique for regulating microbiota sym- biosis, certainly during orthodontic treat- ment, but also throughout life.