The aim of this article was to report one own case of supernumerary lower incisors in non‑syndromic patient and to discuss relevance and implications of this dental abnormality in clinical practice. The own case describes a woman with a supernumerary, unerupted tooth of reduced size, that caused crowding and resulted in implementation of extraction therapy. The study was supported by a literature review. The evaluation showed that more than a half of the supernumerary lower incisors had a proper structure and shape. These incisor‑like supernumeraries caused most often a lack of space in dental arch and due to this fact became an indication for extraction.

Key words: supernumerary lower incisor, supernumerary teeth.