The conference also heard that good bacteria growing in dental plaque could help fight off bugs that cause gum disease and tooth decay if they are given a competitive edge.

BBC: Dental bacteria swap resistance

Your initial professional cleaning will include use of dental instruments to remove all traces of plaque and tartar a procedure known as scaling.

CNN: Gingivitis

Misaligned teeth or poorly fitting crowns, bridges or other dental restorations may irritate your gums and also make it harder to remove plaque during your daily home care.

CNN: Gingivitis

The British Dental Association said both black and green tea could help to combat the build-up of plaque.

BBC: Tea 'good for teeth'