Coronary fractures are very frequent in our dental practice. This article discusses teaching the treatment of a complicated coronary fracture that occurred on the 21 and the clinical follow-up on 11 years to ensure the sustainability of this therapy. In effect, when the clinical situation allows, the bonding of the fracture fragment represents a therapeutic option ultraconservative, sleek and durable. The major advantage of this therapeutic lies in the aesthetic behavior and long-term biological which remains identical to a natural tooth adjacent and difficult to reproduce by a prosthetic crown. In addition, it will allow a new intervention in case of take-off and defer further projects conventional prosthetic. So, it is an option of interest in certain conditions and requires a clinical backward movement to show its ability.