RESUMO
OBJECTIVE: This study aimed to assess the remineralization efficacy of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), silver diamine fluoride/potassium iodide (SDF/KI), and sodium fluoride with functionalized tricalcium phosphate (NaF/fTCP) on artificial early enamel lesion using laser fluorescence and micro-CT analysis. METHODOLOGY: On extracted impacted third molars, artificial enamel lesions were prepared. Twenty-eight specimens were randomly assigned to four groups (n = 7 per group): a control group (artificial saliva), CPP-ACP (GC Tooth Mousse), SDF/KI (Riva Star), and NaF/fTCP (Clinpro White varnish). Following the manufacturer's instructions, the remineralization agents were applied to demineralized surfaces. Laser fluorescence and micro-CT were used to evaluate the remineralization efficacy of the agents and analyzes were performed during four stages: before demineralization, after demineralization, 1st day of remineralization and 30th day of remineralization. Shapiro-Wilk test, repeated measures two-way ANOVA, and Spearman correlation tests were used for statistical analysis. A significant level of p < 0.05 was established. RESULTS: SDF/KI significantly reduced the lesion area and lesion volume on the demineralized enamel surface after 30 days of remineralization. In the T3 period, SDF/KI increased the mineral density statistically significantly compared to the T1 period. The laser fluorescence values for all three remineralizing agents exhibited a linear decrease. A significant correlation between the fluorescence values and the mineral density was found (p = 0.01). CONCLUSION: All three investigated agents were showed positive remineralization efficacy on artificial enamel lesion. However, SDF/KI, containing silver diamine fluoride and potassium iodide exhibited superior than other agents in promoting remineralization. CLINICAL SIGNIFICANCE: Although all three remineralization agents showed positive remineralization efficacy on artificial enamel lesions, SDF had higher remineralization performance over the other two agents. SDF has potential to prevent progression of demineralization in treating children with high caries risk in the long-term.
RESUMO
BACKGROUND: The aim of this study is to examine the cytotoxic effects of dental gels with different contents, which are frequently used during teething, on gingival mesenchymal stem cells (G-MSCs). METHOD: The teething gels used in this study were Dentinox, Gengigel, Osanite, and Jack and Jill. The human gingival mesenchimal stem cells (hG-MSCs) were incubated with these teething gel solutions (0.1%, 50% and 80% concentrations). Reproductive behavior of G-MSCs was monitored in real time for 72 h using the xCELLigence real-time cell analyzer (RTCA) system. Two-way repeated Anova test and post hoc Bonferroni test were used to evaluate the effect of concentration and dental gel on 0-hour and 72-hour viability. Significance was evaluated at p < 0.05 level. RESULTS: Teething gels prepared at 50% concentration are added to the G-MSC culture, the "cell index" value of G-MSCs to which Dentinox brand gel is added is significantly lower than all other groups (p = 0.05). There is a statistically significant difference between the concentrations in terms of cell index values at the 72nd hour compared to the 0th hour (p = 0.001). CONCLUSIONS: The local anesthetic dental gels used in children have a more negative effect on cell viability as concentration increases.
Assuntos
Sobrevivência Celular , Géis , Gengiva , Células-Tronco Mesenquimais , Humanos , Gengiva/citologia , Gengiva/efeitos dos fármacos , Células-Tronco Mesenquimais/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Células Cultivadas , Técnicas In VitroRESUMO
Background/purpose: Radiographs provide critical information on developmental and eruption problems, detection of interface caries, pulpal and periapical pathologies in clinical examination. This study aimed to evaluate parents' knowledge, attitudes and behaviors towards dental radiographs. Materials and methods: A cross-sectional study was conducted on the parents of 396 children who visited to the Pediatric Dentistry clinics. All participants were asked to answer a total of 26 questions. A questionnaire was developed to assess participants' attitudue, behavior and knowledge toward pediatric dental radiographies and provided information on their demographic characteristics. The number of positive attitudes and correct answers was scored based on items asked to the participants. In order to analyze the effect of demographic data on the obtained scores, a multivariate linear regression model was created. The significance level was accepted as 0.05 in all analyzes. Results: Children's dental radiography experience affects parents' attitude score towards dental radiographs (t = 4.375, P < 0.001). Parents' level of knowledge about dental radiography has a positive effect on their attitudes (t = 5.510, P = 0.005). The education level of the parents and the frequency of visits to the dentist have a significant effect on the knowledge level of the parents about dental radiography (P < 0.05). When the correlation between knowledge and attitude scores is analyzed, it is observed that there is a statistically significant, weak and positive correlation between the two variables (r = 0.34, P < 0.001). Conclusion: In conclusion, parents who did not had dental radiographs before have a more negative attitude towards dental radiographs than those who have had dental radiographs.
RESUMO
Abstract Background/purpose: Twin studies are crucial to assess the relative contribution of genetic and environmental factors. This study was conducted to evaluate association between deleterious oral habits and dental caries-periodontal parameters among Turkish twins. Materials and methods: The study comprised 143 pairs of dizygotic (DZ) twins and 59 pairs of monozygotic (MZ) twins aged 3-15 years. Twins were examined for dental caries, plaque index, gingival index, bleeding on probing and deleterious oral habits. Mann Whitney U test was used to examine the data. Results: The MZ twin pairs consisted of 60 male and 58 female twin pairs, whereas the DZ twin pairs consisted of 144 male and 142 female. The mean age of the twins was 9.63 ± 3.0 in MZ twins and 9.47 ± 3.2 in DZ twins. The mean DMFS value of MZ twins with bruxism is higher than those of MZ twins without bruxism (P = 0.001). The mean DMFS value of DZ twins with pacifier sucking is lower than those without (P = 0.007). A statistically significant difference was found between MZ twins with and without nail biting in terms of bleeding on probing and dmfs values (P = 0.035; P = 0.012). The mean values of the plaque index increased due to the mouth breathing in DZ twins (P = 0.024). Regarding the bleeding on probing, there was a statistically significant difference between MZ twins with and without atypical swallowing (P = 0.016). Conclusion: These findings suggest that dental caries-periodontal parameters are similarly affected by deleterious oral habits in MZ and DZ twins.