Abstract: A device for dispensing a treatment fluid (such as chlorhexidine) for the treatment of a dental disorder (such as periodontitis), the device (10) comprising a housing (14) for receiving a reservoir (3) for storing the treatment fluid, dispensing means (17,80-92) for dispensing treatment fluid to the area of the disorder and pump means (30-63) for metering and delivering a predetermined quantity of the fluid from the reservoir (3) to the dispensing means (17,80-92), wherein the dispensing means (17,80-92) comprises a cannula (17) removably connectable to the housing (14) and having an angled distal portion (21) for delivery of the treatment fluid to the area of the disorder, means (80-90) being provided for locating the cannula (17) selectively in two positions such that the distal portion (21) can be directed in two different directions, e.g. at substantially 180.degree. to one another.