A pen-like dispenser for dispensing a dental material, comprising: - a handle and a cover which are rotatable relative to each other about a longitudinal axis of the dispenser; - the cover having an opening; the dispenser further comprising: - a cartridge for holding the dental material and having a dispensing outlet for the dental material, - a screw plunger for extruding the dental material from the cartridge by screwing action; - the cartridge and the cover in combination forming a rotary slide valve which is operable by rotation about the longitudinal axis between a storage position, in which the cover closes the dispensing outlet of the cartridge, and a dispensing position, in which the opening in the cover opens the dispensing outlet of the cartridge; - the dispenser being adapted such that a relative rotation between the screw plunger and the handle about the longitudinal axis is restricted but a movement along the longitudinal axis is enabled; - the dispenser being further adapted such that a relative rotation (D1, D2) between the cartridge and the cover about the longitudinal axis is enabled within a predetermined rotation angle and restricted otherwise; and - wherein the cover and the handle are snap fit directly with each other, and wherein the snap fit is provided by engagement of engagement structures (29, 30) of the handle and the cover, and wherein apart from the engagement structures (29, 30) a seal is provided for sealing any gap between the cover and the handle. - a handle and a cover which are rotatable relative to each other about a longitudinal axis of the dispenser; - the cover having an opening; the dispenser further comprising: - a cartridge for holding the dental material and having a dispensing outlet for the dental material, - a screw plunger for extruding the dental material from the cartridge by screwing action; - the cartridge and the cover in combination forming a rotary slide valve which is operable by rotation about the longitudinal axis between a storage position, in which the cover closes the dispensing outlet of the cartridge, and a dispensing position, in which the opening in the cover opens the dispensing outlet of the cartridge; - the dispenser being adapted such that a relative rotation between the screw plunger and the handle about the longitudinal axis is restricted but a movement along the longitudinal axis is enabled; - the dispenser being further adapted such that a relative rotation (D1, D2) between the cartridge and the cover about the longitudinal axis is enabled within a predetermined rotation angle and restricted otherwise; and - wherein the cover and the handle are snap fit directly with each other, and wherein the snap fit is provided by engagement of engagement structures (29, 30) of the handle and the cover, and wherein apart from the engagement structures (29, 30) a seal is provided for sealing any gap between the cover and the handle. - a cartridge for holding the dental material and having a dispensing outlet for the dental material, - a screw plunger for extruding the dental material from the cartridge by screwing action; - the cartridge and the cover in combination forming a rotary slide valve which is operable by rotation about the longitudinal axis between a storage position, in which the cover closes the dispensing outlet of the cartridge, and a dispensing position, in which the opening in the cover opens the dispensing outlet of the cartridge; - the dispenser being adapted such that a relative rotation between the screw plunger and the handle about the longitudinal axis is restricted but a movement along the longitudinal axis is enabled; - the dispenser being further adapted such that a relative rotation (D1, D2) between the cartridge and the cover about the longitudinal axis is enabled within a predetermined rotation angle and restricted otherwise; and - wherein the cover and the handle are snap fit directly with each other, and wherein the snap fit is provided by engagement of engagement structures (29, 30) of the handle and the cover, and wherein apart from the engagement structures (29, 30) a seal is provided for sealing any gap between the cover and the handle.