10.3 Health & Safety, Clinical Governance, Audit & Risk Management

10.3 Health & Safety, Clinical Governance, Audit & Risk Management

Primary dental practices must comply with extensive legislative, environmental, and quality assurance frameworks to ensure patient safety, staff protection, and continuous clinical improvement.

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Legislative Framework for Health & Safety

The overarching statutory legislation governing workplace safety in Great Britain is the Health and Safety at Work etc. Act 1974 (HSWA). The Act imposes statutory duties on both employers and employees:

• Employer Obligations: Practice owners and employers must ensure, so far as is reasonably practicable, the health, safety, and welfare of all employees, patients, and visitors. Employers with 5 or more employees must maintain a written Health and Safety Policy, conduct documented risk assessments, and provide appropriate training and personal protective equipment (PPE).
• Employee Obligations: Staff must take reasonable care for their own safety and that of others, co-operate with employers on statutory safety duties, and not tamper with or misuse safety equipment.

Enforcement is overseen by the Health and Safety Executive (HSE) and local authority inspectors, who hold legal powers to issue Improvement Notices, Prohibition Notices (immediately halting dangerous operations), or initiate criminal prosecutions.

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COSHH: Control of Substances Hazardous to Health

The Control of Substances Hazardous to Health Regulations 2002 (COSHH) require employers to assess and control the risks associated with hazardous chemicals and biological agents in the workplace.

Hazardous Substances in Dental Practice

• Dental Amalgam & Mercury: Elemental mercury vapor and amalgam scrap pose toxicological and environmental hazards. Under the EU/UK Amalgam Regulations aligned with the Minamata Convention on Mercury, encapsulated dental amalgam must be used exclusively; bulk elemental mercury is strictly prohibited. Dental units must be fitted with high-efficiency amalgam separators (minimum 95% retention rate). Waste amalgam, spent capsules, and extracted teeth containing amalgam must be disposed of as hazardous waste.
• Sodium Hypochlorite: Used in endodontics; highly corrosive to soft tissue and eyes. Requires protective eyewear for patients and staff, and mandatory use of a rubber dam.
• Acid Etchants: Phosphoric acid (typically 37%) can cause chemical burns to skin and mucosa.
• Methacrylates & Acrylic Resins: Can cause contact dermatitis and occupational asthma; requires local exhaust ventilation (LEV) in dental laboratories and well-ventilated clinical areas.
• Disinfectants & Aerosol-Generating Procedures (AGPs): Surface disinfectants and bio-aerosols created by ultrasonic scalers and high-speed handpieces require appropriate PPE (FFP3 masks during high-risk AGPs, fluid-resistant surgical masks, eye protection, and gloves).

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RIDDOR 2013: Incident & Injury Reporting

Under the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013 (RIDDOR), employers and responsible persons must report specified workplace incidents to the HSE.

Sharps Safety Legislation

The Health and Safety (Sharp Instruments in Healthcare) Regulations 2013 mandate that healthcare employers must:

• Use safer sharps incorporating engineered protection mechanisms where reasonably practicable.
• Ban the re-capping of needles unless a validated safe recapping device or single-handed technique is used.
• Place rigid, puncture-resistant sharps containers (yellow or orange-capped) close to the point of use.
• Establish clear post-exposure prophylaxis (PEP) protocols following contaminated needle-stick injuries.

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Ionising Radiation Legislation: IRR17 vs. IRMER17

Dental radiography is governed by two complementary sets of UK statutory regulations. Distinguishing their roles is a frequent focus of the LDS Part 1 examination.

IRR17 (Ionising Radiations Regulations 2017)

• Primary Focus: Protection of employees and the public from exposure to ionising radiation.
• Radiation Protection Adviser (RPA): An external certified radiation expert appointed in writing to advise on equipment specification, facility design, and safety compliance.
• Radiation Protection Supervisor (RPS): A trained internal staff member (often a dentist or senior nurse) appointed to ensure day-to-day compliance with the Local Rules.
• Controlled Area: A designated zone around the X-ray tubehead (typically 1.5 metres in any direction, or within the primary radiation beam) entered only under strict Local Rules during exposure.

IRMER17 (Ionising Radiation (Medical Exposure) Regulations 2017)

• Primary Focus: Protection of the patient undergoing diagnostic dental exposures.
• Key Duty Holders:
  • Employer: Provides the written framework, standard operating procedures, and training records.
  • Referrer: A registered dentist who requests a radiographic examination, supplying clinical details.
  • Practitioner: A qualified clinician who takes clinical responsibility for justifying the exposure (weighing clinical benefit against radiation risk).
  • Operator: Any trained person who carries out practical aspects (positioning patient, placing film/sensor, pressing exposure switch, processing, or clinical evaluation).
• Core Principles:
  • Justification: No exposure is permitted unless the net benefit outweighs the radiation risk. Routine screening without clinical history is illegal.
  • Optimisation (ALARA / ALARP): Doses must be kept As Low As Reasonably Achievable / Practicable by using rectangular collimation, digital sensors, fast E/F-speed film, and correct exposure settings.
  • Diagnostic Reference Levels (DRLs): Standardized dose benchmarks used to monitor practice performance.

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Decontamination Standards: HTM 01-05

Health Technical Memorandum 01-05 (HTM 01-05) provides comprehensive guidance on decontamination and infection control in primary care dental practices in England.

EQR vs. Best Practice

• Essential Quality Requirements (EQR): The mandatory baseline standard that all UK dental practices must achieve. Includes validated cleaning, sterilisation, storage, and water hygiene protocols.
• Best Practice: The optimal standard involving a dedicated decontamination suite with two separate rooms (one dirty room for washing/inspection, one clean room for sterilisation/packaging), automated washer-disinfectors, and non-touch sensor taps.

Autoclave Types & Validation

Sterilizers must be validated daily, weekly, and annually to ensure microbicidal efficacy:

• Type N (Non-vacuum): Uses displacement of air by steam. Suitable ONLY for unwrapped solid instruments. It cannot sterilise hollow instruments, tubed instruments, or wrapped instrument trays.
• Type B (Vacuum): Employs fractionated vacuum cycles to remove air before steam injection. Essential for sterilising hollow, tubed, porous, or wrapped instruments.
• Type S (Specific): Designed for specific load types defined explicitly by the manufacturer.

Dental Unit Waterlines (DUWLs) & Legionella

To prevent Legionella pneumophila colonization and bio-film accumulation:

• DUWLs must be flushed for 20–30 seconds between patients and for 2 minutes at the start of each working day.
• Water lines must be treated continuously or periodically with approved chemical disinfectants.
• A written Legionella Risk Assessment must be maintained, with monthly water temperature monitoring (cold water <20°C, hot water >50°C).

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Clinical Governance & Quality Improvement

Clinical Governance is defined as the organizational framework through which healthcare teams are held accountable for continuously improving service quality and safeguarding high standards of care.

The 7 Pillars of Clinical Governance

1. Clinical Effectiveness & Evidence-based Practice: Adopting national guidelines (e.g., NICE, SDCEP, FGDP/CGDent).
2. Clinical Audit: Systematic review of care against explicit criteria to implement targeted improvements.
3. Risk Management & Patient Safety: Maintaining incident logs, COSHH, sharps safety, and health & safety compliance.
4. Education & Training: Fulfilling mandatory Enhanced CPD requirements.
5. Openness & Duty of Candour: Maintaining transparent complaint systems and incident disclosure.
6. Patient Experience & Public Involvement: Gathering patient feedback via survey tools (e.g., NHS Friends and Family Test).
7. Information Governance: Ensuring UK GDPR compliance and secure record keeping.

The Clinical Audit Cycle

A clinical audit is a quality improvement process designed to measure current clinical practice against established standards:

1. Select Topic: Identify an area of clinical practice needing evaluation (e.g., radiograph quality, record-keeping, root canal obturation standards).
2. Define Criteria & Standards: Establish explicit, evidence-based targets (e.g., 95% of radiograph grades should be Grade 1 under FGDP guidelines).
3. Collect Baseline Data: Audit a representative sample of patient records or radiographs.
4. Compare Data against Standard: Analyze results to identify deficiencies or performance gaps.
5. Implement Change: Introduce corrective measures (e.g., staff retraining, updated equipment, modified protocols).
6. Re-Audit: Repeat data collection after a set period to confirm quality improvement and close the audit loop.

Care Quality Commission (CQC)

In England, the Care Quality Commission (CQC) regulates primary dental services against statutory Fundamental Standards, assessing practices across five key domains: Safe, Effective, Caring, Responsive, and Well-led.