Background Molar-incisor hypomineralization (MIH) is a common condition among children that significantly increases the risk of caries. The objective of this research was to evaluate the clinical success of giomer- and conventional resin-based sealants applied on first permanent molars (FPMs) affected by MIH. Methods One-hundred FPMs with MIH which were indicated for non-invasive fissure sealant were selected in 39 children, aged 6–12 years. Using a split mouth design, the FPMs were randomized into two groups; Group 1. Resin sealant (etch-and-rinse + Conceal F) and Group 2. Giomer sealant (self-etch primer + BeautiSealant). Clinical evaluation was performed using the modified United States Public Health Service (USPHS) criteria at 1, 3, 6 and 12 months. The Log-rank, Fisher’s exact test and Kaplan–Meier analysis were used for statistical analysis. Results At 12 months, the retention rates in Group 1 and Group 2 were 68% and %8, respectively (p = 0.000). The cumulative survival rates of conventional resin sealants were significantly higher than giomer sealants for all follow-up visits (p < 0.05). In Groups 1 and 2, the distribution of unsuccessful sealants on mandibular vs maxillary FPMs were 32.1% vs 31.8% (p = 0.612) and 91.7% vs 92.3% (p = 0.664), respectively. Although the success rate was higher for teeth with white opacities or lesions with less extension in Group 1, no significant difference was found. The average survival time was found as 10.46 ± 3.21 months in Group 1 and 4.02 ± 4.43 months in Group 2. Conclusions The conventional resin-based sealants yielded a better clinical performance over the 12-month evaluation period than the giomer sealants which were applied with self-etch primer. The high failure rate observed in giomer sealants could be explained by the possible deficiency in the etching capacity of self-etch primer on MIH-affected teeth. Trial registration ClinicalTrials.gov, NCT04929782. Registered 10 June 2021—Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT04929782.

Purpose To investigate if chewing side preference (CSP) can be used as an indicator of hemispheric laterality in healthy adults. Materials and methods Seventy-five individuals were included. The visual analogue scale (VAS) was used to determine CSP and laterality test for preferred peripheral organs. Results Significant correlation between CSP and hand, foot, ear, and eye side preference was found (r = .41, p < .001; r = .34, p = .003; r = .35, p = .03; r = .36, p = .002). Conclusion Besides peripheral organs, the CSP can also be used in determination of hemispheric lateralization.

The aim of this study is to assess the orofacial function performance and oral health status of healthy children as well as their potential correlations. In this descriptive study, the oral functions of four hundred systemically healthy children who applied for the pediatric dentistry clinic were evaluated. Three scales, namely Karaduman Chewing Performance Scale (KCPS), Pediatric version of the Eating Assessment Tool (PEDI‐EAT‐10), and Nordic Orofacial Test Screening (NOT‐S) protocol, are used to collect the data. These children's carious lesions were evaluated by using the decayed, missing, filled tooth/surface (DMFT/S, dmft/s) indices, the International Caries Detection and the Assessment‐II System (ICDAS‐II). In total, 400 (6.5 years [78.02 months]) children were participated in the study. Their KCPS scores indicate that 58.0% of the children were at level 0 and 35.8% were at level 1. The results of the KCPS levels and the DMFT, dmft, DT, dt, MT, mt (as =0 and ≥1) were found to be statistically significant; p = .044, p = .009, p = .008, p = .000, p = .032, and p = .003, respectively. The total PEDI‐EAT‐10 score of 13.4% of the children was found to be 3 or higher, suggesting that they experience a problem in swallowing. According to the NOT‐S, the most affected domains were “habits” (51.0%), “facial expression” (49.3%), and “chewing and swallowing” (45.3%). Among healthy children without a defined problem in swallowing and orofacial functions, the oral health status may affect orofacial functions. Decayed (particularly, extensive caries existence) or missing tooth may have critical importance for adequate chewing in children. Especially in the presence of so many decayed or missing teeth, evaluating the orofacial functions through different scales may considerably contribute to early diagnosis of functional problems.