The aims of this study were to verify the occurrence of dental injuries in 343 amateur Turkish soccer players in İzmir and the level of knowledge of the teams' soccer players about mouthguards. The soccer players were interviewed to determine the occurrence of dental trauma during soccer and mouthguard usage level. The data were analyzed with descriptive analysis to determine absolute and relative frequencies of answers for each one of the questions. Only 35 (10.2%) soccer players reported the occurrence of some type of dental injury during soccer practice. Regarding emergency conducts, approximately 84 players (24.48%) answered that replantation could be obtained after teeth avulsion, 23 players (27.38%) answered that successful replantation could be obtained within 2 hours immediately after injury, and 60.71% were not able to answer this question. Regarding mouthguard use, 61.8% of soccer players did not know about mouthguards. It was possible to conclude that dental injuries are common during amateur soccer practice and that there is a lack of information in the soccer players related to the emergency conducts and prevention of dental trauma.

No abstract

No abstract

ÖZET Amaç: Bu çalışmanın amacı tek tabaka ve tabakalama tekniğiyle uygulanan bulk-fill kompozit rezinin (Tetric Evo Ceram Bulk-Fill; IVW ve IVB, Ivoclar/Vivadent, Liechtenstein) mikrosızıntı ve mikrosertlik özelliklerinin karşılaştırılmasıdır. Yöntem: Çekilmiş 28 adet çürüksüz üçüncü molar diş üzerinde hazırlanan Sınıf I kaviteler (4X4X4mm) sırasıyla 2 ve 4 mm'lik tabakalar halinde iki farklı renkte rezin kompozitle restore edildi. Mikrosızıntı testi için dişler bazik fuksin kullanılarak boya penetrasyonuna tabi tutuldu. Restore edilen dişler daha sonra bukko-lingual yönde ortadan ikiye separe edildi. Mikrosızıntı, stereomikroskop kullanılarak x20 büyütmede değerlendirildi. Separe edilen diş parçaları akrilik rezin bloklara yerleştirildi ve uygulanan kompozitin 1-2-3 mm derinliklerinde mikrosertlik testi gerçekleştirildi ve elde edilen verilere istatistiksel analiz uygulandı (Wilcoxon Signed Ranks Test, ANOVA, Bonferroni). Bulgular: Mikrosızıntı testinde tek tabaka ve tabakalama tekniği arasında istatistiksel anlamlı fark görülmedi (p>0.05). Mikrosertlik testinde iki farklı renk (IVW, IVB) kompozit rezin restorasyon arasında benzer şekilde istatistiksel anlamlı fark belirlenmedi (p>0.05). Tek tabaka halinde uygulanan kompozit rezin restorasyonlarda 1,2 ve 3 mm derinliklerinde üst tabakadan alt tabakalara doğru azalan mikrosertlik değerleri arasında istatistiksel olarak anlamlı fark belirlendi (p< 0.05). Sonuç: Mikrosızıntı bulguları, farklı uygulama tekniklerinin kompozit rezin materyalin büzülmesi üzerine etkisinin olmadığını ortaya çıkardı. Mikrosertlik bulgularına göre, tek tabaka uygulanan kompozitlerin istatistiksel olarak anlamlı sertlik farklılıklarının olduğu görülmüştür. Anahtar Kelimeler: Bulk fill kompozit, İnkremental teknik, mikrosızıntı, mikrosertlik ABSTRACT Introduction: The aim of the study was to compare microleakage and microhardness properties of bulk-fill composite resin (Tetric Evo Ceram Bulk-Fill IVW and IVB, Ivoclar/Vivadent, Liechtenstein)

Background. Deep fissures are highly unprotected from the development of caries. Resin-based materials and glass-ionomer cements for sealing fissures are useful in caries control through physical barrier formation, which prohibits metabolic exchange between fissure microorganisms. Retention is one of the most critical properties of fissure sealants. This in vivo study is aimed at comparing and evaluating the clinical efficacy of resin and glass ionomer-based fissure sealants on first permanent molars with follow-ups at 6-, 12-, and 18-month intervals. Methods. A randomized split-mouth design clinical study was conducted after obtaining the ethical committee approval. A total of 50 patients, aged between 7 and 12 years, were randomized and enrolled in the study to perform a total of 200 sealant placements on all four caries-free and hypoplasia-free first permanent molars having deep fissures, which are susceptible to caries, were included in this study. The four permanent molars were divided into the following four groups: group A (control), B (Grandioseal, Voco, Germany), C (Smartseal & Loc, Detax Gmbh & Co, Germany), and D (Fuji triage capsule, GC, Belgium). The sealed molars were clinically evaluated at intervals of 6, 12, and 18 months to assess sealant retention, surface roughness, marginal coloration, and caries status through visual evaluation of the sealant by two evaluators. Results. Concerning retention, there were statistically significant differences between the sealants in terms of the survival of partial and fully retained sealants as well as in the survival of caries-free teeth. Two resin-based (Smartseal & Loc) and glass-ionomer cement (Fuji triage) sealants showed significantly similar performances in permanent molars for up to 18 months. In terms of retention, one of the resin-based (Grandioseal) sealants performed better as compared to the others and showed better caries prevention in deep fissures. Conclusion. It is concluded that both the sealants had comparable retention and caries-preventive effects in 7 to 12-year-old children and can be considered as suitable sealants for a period of at least 18 months in moderate caries risk patients.