Dental sharps safety and disposal: containers, cartridges and needlestick rules

Updated 6 November 2026 · By the Dental Waste Disposal team

Short answer: Dental practices must place sharps containers close to the point of use, use yellow-lidded containers for part-used anaesthetic cartridges and other medicinally contaminated sharps, close containers at the fill line, label them with the practice and dates, and store them securely until collection. The Health and Safety (Sharp Instruments in Healthcare) Regulations 2013 also require safer working practices, training and a clear needlestick injury procedure.

Dental sharps safety and disposal: containers, cartridges and needlestick rules

Sharps in a dental practice

Dentistry uses more small sharps than most healthcare settings: needles and cartridges for local anaesthetic, burs, endodontic files, scalpel blades, suture needles, matrix bands, orthodontic wire and broken instruments. Many injuries happen not during treatment but afterwards, while clearing the tray, resheathing a needle or pushing waste into an overfull container. Good container choice and placement prevent many of them.

Your legal duties

The Health and Safety (Sharp Instruments in Healthcare) Regulations 2013 build on general health and safety law and apply to healthcare employers, including dental practices. They require employers to avoid unnecessary use of sharps, use safer sharps where reasonably practicable, avoid recapping needles unless the risk is controlled, for example with a resheathing device, and place sharps containers close to where sharps are used. Employers must also train staff, record and investigate sharps injuries, and provide access to occupational health advice after an injury.

Risk assessment covering sharps use at every chair and in decontamination
Safer sharps or resheathing devices where reasonably practicable
Containers within easy reach of the point of use
Written procedure for needlestick and sharps injuries
Staff training at induction and refreshed regularly
Recording and reviewing every sharps injury

Choosing the right container

Item	Container	Treatment
Part-used local anaesthetic cartridges	Yellow-lidded sharps container	Incineration
Needles and syringes used with medicines	Yellow-lidded sharps container	Incineration
Burs, files, blades and wire with no medicine	Orange-lidded sharps container, or yellow if preferred	Alternative treatment or incineration
Sharps contaminated with amalgam	Amalgam container	Mercury recovery
Sharps used with cytotoxic medicines	Purple-lidded sharps container	Incineration

Because cartridges are used at nearly every appointment, most practices use yellow-lidded containers throughout to avoid errors.

Using containers safely

Most container-related injuries are avoidable with a consistent routine that every member of the team follows, including temporary staff and students.

Assemble the container correctly and check the lid is fully clicked on
Write the practice name, assembly date and your initials on the label
Use the temporary closure between uses and when moving the container
Never push sharps in by hand or shake the container to make space
Close and lock it at the fill line, usually around three quarters full
Write the closure date and initials on the label
Replace containers on a fixed timescale, often every three months, even if not full
Never place sharps containers on the floor or above shoulder height

Storage and collection

Sharps containers should never be left open and unattended in corridors, reception or other areas patients can reach, and children in particular should never be able to get to them. Closed sharps containers should be stored in a secure area, such as a locked clinical waste store or locked bin, away from patients and the public, until collection. Collection frequency should match how fast containers fill. Each collection should come with the correct paperwork, and the container type and description on the note should match what was handed over.

After a sharps injury

Follow your written procedure straight away: encourage the wound to bleed gently under running water, wash with soap and water, do not scrub or suck it, and cover it. Report the injury immediately so the source patient can be identified where possible and the injured person can get prompt occupational health or emergency advice, as some post-exposure treatment is time-sensitive. Record the injury, review how it happened and change practice if needed. Some sharps injuries must also be reported under RIDDOR, for example where the source is known to carry a blood-borne virus or the injured person develops an infection, so check the HSE guidance for each incident.

Sizing and placing containers

A container that is too large stays open for months; one that is too small fills mid-session and tempts staff to push sharps in. Choose sizes so that each container fills in a reasonable time and is never handled when overfull.

Location	Typical container	Notes
Each dental chair	Small yellow-lidded container, often around 1 to 2.5 litres	Mounted on a bracket within reach, not on the floor
Decontamination room	Larger yellow-lidded container	For burs, blades and instruments found during reprocessing
Hygienist or therapist surgery	Small yellow-lidded container	Lower volumes, so replace on a fixed timescale
Implant or oral surgery room	Medium yellow-lidded container	Higher volumes of blades and sutures
Central waste store	Closed containers only	Locked, awaiting collection

Wall or trolley brackets keep containers stable and at a safe height, and make it less likely that a container is knocked over or carried around open during a busy clinic.