Happy Tooth
The Happy Tooth is a registered trademark which stands for guaranteed toothfriendly quality.
The Happy Tooth mark distinguishes products that are not harmful for teeth. In order for products to carry the logo they have to be scientifically tested and proven not to be cariogenic or erosive.
The association’s main function is to license the 'Happy Tooth' registered trademark to confectionery manufacturers producing chewing gums, mints, lollipops, chocolate or other sweets that are not harmful to teeth. Based on the measurement of the pH of dental plaque and saliva, the test is standardized and carried out by three appointed independent university institutes.
The compliance of a product is tested by means of intra-oral pH telemetry. Applying a standardized method, the plaque pH is measured at least in four volunteers during and for 30 minutes after consumption of the product with an indwelling, interproximally placed, plaque-covered electrode. Products which do not lower plaque pH below 5.7 under the conditions of this test, lack a cariogenic potential. The erosive potential is measured with a plaque free electrode. The acid exposure of the teeth must not exceed 40mmol H min.
The test is conducted by independent university institutes.
Toothfriendly International grants the rights to use the trademark.