The hygiene workflow in the practice of Dr Kayla Teh

With a team of 16 staff and four treatment rooms, the practice of Dr Kayla Teh focuses on various aspects of dental conservation, prevention and aesthetics. To ensure a high quality of care and meet patient expectations, the practice places importance on a seamless hygiene chain for instrument reprocessing. This article outlines the best-practice procedures of Dr Kayla Teh, emphasising the importance of reliable instrument decontamination and patient safety.

Dr Kayla Teh


Instrument reprocessing is a critical procedure involving physical or chemical methods to decontaminate reusable medical devices, ensuring their safety for subsequent use on patients and handling by staff. The primary objective of instrument reprocessing is to safeguard the wellbeing of both patients and practice staff by effectively eliminating harmful microorganisms present on the instruments.

To achieve comprehensive instrument decontamination, a series of essential steps must be followed. These steps include cleaning and disinfection, inspection, packaging, sterilisation, as well as documentation and approval. Adherence to international guidelines is paramount, as they emphasise the necessity for trained personnel to execute the entire instrument reprocessing process using closely monitored procedures to ensure reproducibility. These stringent requirements serve to enhance the health and safety of patients, users, and all individuals involved.

Dr Kayla Teh’s practice has adopted a comprehensive system solution from German solution provider, MELAG. This solution integrates components such as autoclaves, washer-disinfectors, sealing devices, and software solutions into a single workflow. By utilising this solution, the practice ensures a streamlined and synchronised process for instrument reprocessing.

At the heart of the system solution approach is a personalised experience for the practice’s patients. With the provision of a central contact, the practice gains the advantage of having a single point of contact to address all infection control questions, providing prompt and comprehensive support. Whether there are inquiries regarding device operation, maintenance, or troubleshooting, the central contact from MELAG ensures that the practice receives immediate assistance, thus delivering an efficient instrument reprocessing processes.

Dr Kayla Teh

By closely following a standardised workflow with MELAG´s system solution, Dr Teh’s practice delivers optimal patient care and mitigates any potential risks associated with cross-contamination or infections.

Step one: Preparing the instruments

The first critical step in instrument reprocessing is proper instrument preparation. This includes collecting the used instruments, pre-cleaning them if necessary, and transporting them quickly from the treatment room to the designated decontamination area. Pre-cleaning of instruments from coarse soil and water-insoluble residues should be performed immediately after the instrument is used in the treatment room.

To optimise the reprocessing outcome, it is essential that the instruments must be transported to the decontamination area as quickly as possible. Health and safety regulations require that instruments be transported in closed containers or trays to protect both the patients and practice team. In the decontamination room, plastic brushes are used to protect instrument surfaces during pre-cleaning, and ultrasonic devices may be used to assist in the removal of stubborn contaminants.

To read the full article, click here or refer to Dental Asia January/February 2024 issue.