[Intraligamentary anesthesia. Procedures using high pressure injection system (Ultraject)]

The intraligamental anaesthesia via the periodontic sulcus is to be applied with high pressure. Therefore special syringes are needed. However the forced application may produce in some cases unwelcome effects as e.g. the breaking of the cartridge. This paper presents an intraligamental syringe with a device limiting maximum pressure. Working with this syringe proved comfortable in practice.