 Clinical examinations will be performed at baseline and after 6 and 12 months. The families are contacted every third month for interviews and delivery of study products. The examinations and scoring will be carried out visually and tactile by two well-trained and calibrated dental hygienists at the dental clinic. At baseline, information on the domestic oral hygiene routines, use of baby bottles and habitual sweet dietary intakes will be collected by a 10-question questionnaire. The following endpoints are scored: 