Pedodonti Ana Bilim Dalı Koleksiyonu
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Öğe Effects of a mineralization-promoting peptide on the physical and chemical properties of mineral trioxide aggregate(Springer, 2023) Öztürk, Zeynep; Bal, Cenkhan; Güngörmüş, Mustafa; Aksoy, MerveMineral trioxide aggregate (MTA) has been used widely in dentistry due to its sealing ability and biocompati-bility. Delayed setting time is one of the major limitations of MTA. Various additives have been studied to further improve the properties of MTA with varied degrees of success. In this study, we have investigated the effect of a calcium phosphate mineralization promoting-peptide (MPP3) on the physical and chemical properties of MTA in comparison with Na2HPO4. Based on the reported effects of MPP3 on calcium-phosphate mineralization reaction, our hypothesis was that MPP3 may also show beneficial effects on the calcium-silicate mineralization system of MTA. Na2HPO4 was used for comparison since its setting accelerant effect on MTA has been well documented. The cements were prepared by mixing with distilled water, 0.40 mM MPP3 solution, 15% Na2HPO4 solution, and a combination of MPP3 and Na2HPO4 solution. Initial and final setting times were measured via Vicat needle. Microhardness values were measured via Vickers indenter at 1,3,7, and 28 days after hydration. Compressive strength after setting was measured via universal testing machine. Morphological and compositional analyses were performed via FESEM imaging, XRD and Raman spectroscopy. The microhardness data was evaluated via repeated-measures ANOVA. Setting time and compressive strength data were evasluated via one-way ANOVA. Initial setting time was reduced to-3 min in the Na2HPO4 containing groups but remained at-5 min in the control and MPP3 groups. Final setting times were significantly reduced in all groups compared to the control group. The reduction in the final setting times in the Na2HPO4 containing groups were significantly higher compared to the MPP3 group. Microhardness was significantly higher in the MPP3 group at all time points. No statistically significant difference in compressive strength was observed among the groups. FESEM analysis showed presence of ettringite crystals in the MPP3 group, and NaBiO3 crystals in the Na2HPO4 containing groups. XRD analysis showed a broadening of peaks at 2 theta = 32 degrees in the Na2HPO4 containing groups, possibly due to presence of NaBiO3. Raman spectroscopy showed statistically higher ettringite content in the MPP3 containing groups. Our findings indicate that MPP3 is a beneficial additive to eliminate some of the drawbacks associated with MTA with no detrimental effects on mechanical properties and without resulting in phases that potentially cause discoloration, such as NaBiO3. We propose that the reduced final setting time and increased microhardness by MPP3 may be associated with the increased ettringite content. Future studies, where wider range of MPP3 concentrations are studied may help elucidate and optimize the beneficial effects of MPP3 observed in this study.Öğe Prevalence and complications of ectopic eruption in 6-12-year-old children based on radiographic evaluation(Kerman University of Medical Sciences, 2022) Özdemir, Deniz Sıla; Hato, Esra; Kuyucu, Yunus Emre; Altan, HalenurBACKGROUND AND AIMS: This study aimed to retrospectively determine the prevalence of ectopic eruption observed in permanent teeth during the mixed dentition period and the complications caused by it, based on radiographic findings. METHODS: This study included children aged 6-12 years admitted to the Department of Pediatric Dentistry, Tokat Gaziosmanpasa University. The orthopantomographic radiographs of 2664 patients were used to examine anterior and premolar teeth by two different researchers. The patient's age and gender, the teeth with ectopic eruption, and complications caused by it on the jaw, adjacent teeth, and arch were recorded. RESULTS: Ectopic eruption was observed in 176 patients (91 girls and 85 boys) out of 2664 patients included in the study and the prevalence rate was 6.6%. The eruption complications were observed in 131 of 176 patients with ectopic eruption (4.9%). Among the complications, the most common and the least common complications were the reduction in the arch length (1.2%) and the impaction of the adjacent permanent tooth (0.1%), respectively. The ectopic eruption was mostly common in premolar teeth. CONCLUSION: The early radiographic diagnosis of ectopic eruption can lead to more manageable and more acceptable methods of treatment with no need to adopt complicated treatments in appropriate cases, providing a great advantage for both the patient and the dentist.Öğe The evaluation of developmental enamel defects and dental treatment conditions in a group of Turkish children with congenital heart disease(Cambridge Univ Press, 2015) Cantekin, Kenan; Gümüş, Husniye; Torun, Yasemin A.; Şahin, HakanObjective: The aim of this study was to determine developmental enamel defects and dental treatment conditions in children with congenital heart disease by comparing them with a control group of healthy children. Methods: Children included in the study were referred to a paediatric dentistry for dental examination and treatment after undergoing routine examination in a paediatric clinic. Results: The congenital heart disease group included 72 children and the control group included 56 healthy children. Children in the age group of 3- 14 years were included in this study. The mean age of the congenital heart disease group and control group was 6.24 +/- 2.85 and 6.73 +/- 3.01, respectively. The mean values of the decayed, missing, and filled indices for primary and permanent teeth in the congenital heart disease group were 2.80 +/- 3.77 and 0.81 +/- 1.63, respectively. In the control group, the values were 1.87 +/- 3.31 and 0.72 +/- 1.46, respectively. The care score for primary teeth was 3.6% in the congenital heart disease group and 13.3% in the control group. The enamel defect was detected in at least one permanent tooth in seven out of 72 children (9.7%) in the congenital heart disease group and in three out of 56 children (5.3%) in the control group. Conclusion: Although there was no significant difference in the development of dental caries or the prevalence of enamel defects between children with congenital heart disease and healthy children, the care score was low in children with congenital heart disease. In addition, children with congenital heart disease had a higher rate of pulled primary teeth and delayed treatment of decayed teeth.Öğe Dental findings in marfan syndrome: A case report(2017) Bostancı, Büşra; Korkut, Emre; Ünlü, NimetMarfan sendromu, öncelikle kas-iskelet sistemi, kalp-damar sistemi ve gözleri etkileyen anomaliler ile karakterize, otozomal dominant bir bağ dokusu hastalığıdır. Enfektif endokardit riski nedeniyle sendromun erken tanısının önemli olduğu ileri sürülmektedir. 7 yaşındaki kadın hasta alt çenenin ön bölgesindeki dişlerin çapraşıklığı şikâyeti ile kliniğimize başvurdu. Ayrıntılı klinik ve radyografik muayene sonucu hastanın çoklu tedavi ihtiyacı olduğu belirlendi. Hastanın derin çürükleri dikkate tedaviler girişimden bir saat önce olacak şekilde tasarlanan antibiyotik proflaksisi altında gerçekleştirildi. Hastaya diş hekimine düzenli olarak gelmesi önerildi ve ortodontik değerlendirilmeye yönlendirildi
