Correlation between siblings in caries in Norway. A quantitative study

ConclusionWe identified a fairly strong family effect, which confirms that the family is an important arena in which the dental health of the children is formed. An improvement in dental health for one of the siblings was associated with a positive effect on the dental health of the other sibling, and vice versa. (Source: Community Dentistry and Oral Epidemiology)
MedWorm: Dentistry