Aim: The quality of restorations varies depending on many factors such as type of material and caries risk. The objective of this research was to investigate the quality of dental restorations by using the Modified United States Public Health Service criteria (USPHS/Ryge) in adults with different caries risk profile.
Materials and methods: A total of 175 patients and their 642 restorations were divided into low(DMFT≤5), moderate(5>DMFT<14) or high(DMFT≥14) caries risk group. The patients were answered questions about general health, diet and oral hygiene habits. All the restorations were examined clinically according to Modified USPHS criteria. A one way ANOVA was used to compare caries risk groups for the difference in mean age and DMFT scores. The chi-square test was used for determining of differences in caries risk groups across the quality ratings for dental restorations and categories of caries risk factors.

Results: In low caries risk group, anterior restorations were found lower percentage than other caries risk groups. The composite restorations were less frequent and marginal discoloration and surface texture scores presented a higher percentages of unacceptable ratings in high caries risk group (p<0.05). The dental plaque was more as toothbrushing was less frequent in high caries risk group (p<0.05).

Conclusion: The quality of dental restorations can be determined according to the caries risk profile. To increase the success of restorations in individuals with high caries risk, oral hygiene education will be needed.