1 *Department of Oral Medicine and Pathology, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden †Department of Pediatrics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden ‡Department of Infectious Medicine, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden §Department of Women and Child Health, Karolinska Institute, Solna, Sweden ¶Paediatric Dentistry, Eastman Institute Public Dental Health, Stockholm, Sweden.