Caries and periodontal diseases are the main pathologies associated with poor oral hygiene. The prevalence of oral cavity problems is still very high. According to World Health Organisation data, 60% to 90% of school-age children and almost 100% of adults have caries. Severe periodontal disease, which may result in tooth loss , affects 15% to 20% of adults aged from 35 to 45 years. What can you do to maintain good oral hygiene? Good oral brushing consists of the effective removal of food debris . If this is not removed from the teeth, it will lead to dental plaque and tartar. The Portuguese Association of Dentists recommends following the ‘2 x 2 x 2’ rule in order to maintain good oral hygiene: Brush your teeth at least 2 times a day . It is important that you brush your teeth just before going to bed; Always brush your teeth for 2 minutes; See your dentist regularly, at least 2 times a year. Good oral hygiene practice In addition to this basic routine , you should also: Use a suitable toothbrush, which should be replaced every 3 months; Use a fluoride toothpaste (ideally with a composition of 1500 ppm fluoride); Clean interdental spaces daily with dental floss and/or interdental brushes. This is essential in order to remove food debris and bacteria from the spaces between the teeth (dental floss should be used before brushing, so that the protective action of the toothpaste is prolonged); Eat balanced meals, reducing the amount and frequency of sugar intake; Avoid tobacco and alcohol; Talk to your dentist to find out which products are most suitable for a good oral hygiene routine. Author : Catarina Fernandes Silva In the hospitals and clinics of the Hospital da Luz network you can find dental specialists who will monitor your oral health. Meet the Dentistry team of Hospital da Luz network The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.