While some people believe that kissing the child in the mouth is an act of tenderness and love, other think that this way of kissing is unusual, repulsive and they criticize the mothers who do this. Here's what the scientists say about it...

Gentle kisses are the most beautiful expression of love and affection towards the other person, and although the kisses on the forehead, cheeks or arms are fully accepted for the child, many parents never kiss their children on the lips and that habit they consider as strange and repulsive.

The actress Jessica Alba in her interview for the magazine Redbook, said she doesn’t understand why kissing children on the lips is surprising, and it is socially acceptable to allow pets to lick their owner’s face. After this interview mothers around the world have reacted strongly against her opinion.

In addition, the science has an opinion about these kisses between mother and child. The American Academy of Periodontology advises moms to avoid kissing a baby in the mouth, because in the mouth of newborn babies are not present bacteria that cause tooth decay and periodontal disease, and these bacteria can be transferred by simple kiss on the lips. Namely, when the bacteria comes in the child's mouth, it begins to convert sugar from food and beverages in the acid that destroys teeth.

Therefore, the Academy claims that, even if only one family member is suffering from periodontal disease, all family members can be affected because saliva is transmitted by kissing, sharing eating utensils, coughing, sneezing...

General dentists Academy claims that kissing can transmit up to 500 different types of germs including those that cause gum disease and only one kiss between a parent and child can cause gum disease.

Although adults who kiss each other in the mouth can transfer germs, children are more sensitive because they still have not developed immune system.