Although there have been many advances in knowledge of the causes of human periodontal diseases, plaque remains the primary initiator or trigger. Removal of dental plaque is essential for dental health and personal oral hygiene is necessary for maintaining periodontal health.Though there are various methods, including chemical and other mechanical methods advocated for this purpose, toothbrushing is the most commonly used method.
Various forms and designs of powered toothbrushes have been introduced in world market since 1960s with varying efficiency, acceptability, and popularity. The mode of action of these brushes is designed to simulate the manual toothbrushes, but they have established themselves as a superior alternative to manual toothbrushes as they are much more attractive and user-friendly. However, clinical studies have proved that manual and electric toothbrushes are equally effective in removal of plaque and reducing clinical signs of gingival inflammation.
More recently, two unique toothbrushes, Sonic (hyG, Hukuba Dental, Nagareyama, Japan) and Ionic (Cybersonic, Florida, USA), have been introduced to market, to further improve plaque-removing efficacy.
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