Study	Reason for exclusion
Agerbaek 1979	Children at baseline span the age limit of the inclusion criteria, with the study being conducted not only in a primary school
Al‐Jundi 2006	No cariogenic food content to intervention
Anaise 1976	No cariogenic food component ‐ toothbrushing only
Andruskeviciene 2008	Children too young at the start of the study for the current review (study begins at 3 years of age)
Bagramian 1976	Not a randomised controlled trial
Bagramian 1978	Not a randomised controlled trial
Bagramian 1982	Not a randomised controlled trial ‐ stratified sampling
Belloso 1999	Not a randomised controlled trial
Bentley 1983	No dental outcome data in study
Bordoni 2005	Children too old for current review
Bretz 2004	No cariogenic food component
Buischi 1994	Study participants too old for current review criteria (13 years old)
Culler 2011	Not a randomised controlled trial
Curnow 2000	No cariogenic food component to intervention
Curnow 2002	No cariogenic food component to intervention
Davies 2002	Intervention only provided free toothpaste
Davies 2002a	Intervention only provided free toothpaste
de Farias 2009	Not enough description of intervention to determine inclusion criteria components
Ekstrand 2000	Not a randomised controlled trial
Ellwood 2004	No cariogenic food component ‐ free fluoride toothpaste only
Englander 1979	Study participants too old for current review criteria
Esfahanizadeh 2011	No nutritional component ‐ only toothbrushing instruction
Feldens 2010	Study participants too old for current review criteria
Fernández 1988	Not a randomised controlled trial
Fernández 1988a	No cariogenic food component ‐ toothbrushing only
Ferrazzano 2008	No cariogenic food component
Fischman 1977	Has a clinical component to intervention (restorative care) so unable to determine effects of behavioural intervention
Frencken 2001	Non‐random allocation to control and intervention group (self selection into training workshops)
Graehn 1984	Not a randomised controlled trial
Graves 1975	Not a randomised controlled trial
Grimoud 2005	Not a randomised controlled trial
Grocholewicz 1999	Insufficient information to confirm if had cariogenic food component to intervention
Harrison 2007	Children in study were too young for the current review
Hartono 2002	Not a randomised controlled trial
Hebbal 2011	Conducted in secondary school even though children are 12 years old
Hietasalo 2009	Not a school‐based intervention
Hochstetter 2007	Although Hochstetter 2007 appears to meet the inclusion criteria for the review, it was not included. Unfortunately, the reporting of this study was exceptionally poor and we could not rely on the information presented. The intervention appeared to be comprehensive and incorporating parents, children and teachers. Attempts to contact the authors to obtain clarification were unsuccessful
Holm 1990a	Children in study were too young for the current review
Horowitz 1976	No cariogenic food component ‐ toothbrushing only
Horowitz 1977	No cariogenic food component ‐ toothbrushing only
Huang 1996	Epidemiological survey
Jackson 2005	No cariogenic food component
Julien 1994	No cariogenic food component ‐ toothbrushing and flossing only
Kakudate 2009	Not a school‐based intervention
Kerebel 1985a	No cariogenic food component to study intervention
Klimek 1987	No cariogenic food component ‐ tooth cleaning only
Kramer 1990	No cariogenic food component. Children only took part in supervised tooth cleaning and professional plaque removal and local fluoridation
Lena 2001	No cariogenic food component to study
Martinez 2004	Insufficient information unable to access paper in time frame of review ‐ appears to not be a randomised controlled trial
Mazzocchi 1997	Not a randomised controlled trial ‐ states unable to randomise due to sample size
Milejczak 2011	Not a randomised controlled trial ‐ schools are not randomly allocated to treatment or control but selected in survey manor
Moorhead 1991	No cariogenic food component ‐ supervised brushing
Morgan 1998a	Study participants too old for the current review
Nyandindi 1996	Randomisation occurs between "conventional session group" and control group. The "modified session group" were from the following school year, and so there was no randomisation. Cariogenic food component was only included in the modified session intervention, so the study does not satisfy our inclusion criteria for the part that is randomised
Peng 2004	This study was not a randomised controlled trial, random allocation was not reported and therefore could not be assumed
Peterson 1979	No cariogenic food component ‐ supervised brushing
Pine 2000	No cariogenic food component to intervention
Pine 2007	No cariogenic food component to intervention
Pujol 1996	Not a randomised controlled trial
Roberts‐Thomson 2010	Children in study too young for the current review
Rodrigues 2003	No cariogenic food component to study
Rodrigues 2009	Not a randomised controlled trial
Sagheri 2009	Cross‐sectional study
Schinder 1992	Paper could not be accessed by review deadline. Paper reported on 4 different educational approaches in oral health material in kindergartens in Israel
Schwarz 1998	Not a randomised controlled trial ‐ field demonstration trial
Secades 1995	Paper could not be accessed by review deadline. Study of corrective feedback and contingency management in establishing dental hygiene
Segal 1967	No cariogenic food component ‐ supervised toothbrushing
Stadtler 1981	No cariogenic food component ‐ supervised brushing
Stadtler 1982	No cariogenic food component ‐ weekly supervised brushing with a sodium fluoride gel
Suomi 1980	No cariogenic food component ‐ toothbrushing only
Tagliaferro 2011	Unable to determine the impact of behavioural intervention due to the clinical aspects included in intervention
Tai 2009	Unable to determine the impact of behavioural intervention due to the clinical aspects included in intervention
Tapias 2001	Not a randomised controlled trial
Toassi 2002	Not a randomised controlled trial
Tolvanen 2009	No clinical outcome ‐ questionnaire on children's oral health related behaviour, knowledge and attitudes
Tolvanen 2010a	Study participants too old for the current review (teachers and parents)
van Palenstein 1997	Not a randomised controlled trial
Vanobbergen 2004	Not a randomised controlled trial ‐ schools are not randomly allocated to treatment or control but selected in survey manor
Wierzbicka 2002	Cross‐sectional survey
Yamaguchi 1997	Not a randomised controlled trial ‐ purpose of this study was to investigate the causes of increasing prevalence of dental caries