Sir, I, and all the dentists I have spoken with who work in the 'real world' of general practice, fully support the book review by Dr Hayes on Ozone – The revolution in dentistry. HealOzone has transformed my practice where the results of using ozone are far superior to the alternative injecting, drilling and filling methods.

I have worked as a dentist in public health care in Bardu in Troms, the northern part of Norway, for 14 years. I treat all categories of patients and have incorporated HealOzone into my practice routines for almost three years, using it in every caries case. DIAGNOdent and HealOzone avoid or reduce drilling for all my patients and in each case the goal is prevention instead of extension.

I use ozone for a variety of treatments and have achieved excellent results; in fissure caries in combination with fissure sealants; in phobic children who do not tolerate injections using its analgesic effect to remove about 2 mm of infected dentine in each step; and in shallow smooth-caries lesions where the caries is arrested without drilling.

In large, open carious lesions in primary teeth I remove the gross outer caries and then use HealOzone leaving the caries lesion open. The patients brush into the cavities and they can be filled after approximately three months when the dentine has become hard and shiny. Approximal caries in dentine I treat as with fissure caries, leaving approximately 2 mm of infected dentine on the pulpal wall, then dose HealOzone and restore. Radiographically these lesions remineralise. In the case of replacement fillings I use it as an extra step, saving tissue on the pulpal wall before conventional filling therapy and avoiding many root canal treatments for my patients as a result.

Use of ozone before cementation of crowns and bridges avoids pulpal symptoms; in endodontics it disinfects root canals and internal bleaching using HealOzone is superb.

Having incorporated these techniques safely into my practice I am delighted with the results, as are my patients. It is also much more fun being a dentist working with this wonderful concept and I know I am not alone in thinking this.