DOI: 10.1051/shsconf/20120200019 C © Owned by the authors, published by EDP Sciences, 2012 The impact of dental restorations ’ quality on caries risk

Abstract. The purpose of this study was to evaluate how the quality of government funded restorations can impact caries prevalence. After randomisation, One hundred thirty five (135) 12–13-year-old children were examined in the Gulbene municipality of Latvia and 175 restorations placed in premolars or second molars were evaluated. It was concluded that the quality of restorations made by publicly funded dentistry is low, which could be a reason for secondary caries and other complications and results in greater expenses in the future. Key words: dental restorations quality, caries risk Dental research has to concentrate on prevention and minimal intervention (Söderholm et al., 1998); however, restorations are still required for caries at the dentinal level. To lower the risk of caries, restorations should be placed accurately (Söderholm et al., 1998). As the highest risk for recurrent caries is in gingival area (Söderholm et al., 1998; Sunnegårdh-Grönberg et al., 2009), a high quality of restorations in the gingival margin is significant to ensuring appropriate oral hygiene (Hewlett et al., 1993; Goldberg, 1990). There isn’t sufficient evidence to claim whether amalgam or composite fillings are better (Opdam et al.,2011) and no studies have been made comparing cheap tooth coloured restorations with chea