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Öğe Color Stability and Durability of Dental Restorative Materials against Pediatric Liquid Drugs(Assoc Apoio Pesquisa & Saude Bucal-Apesb, 2026) Kucukersen, Merve Yaman; Keskin, Gul; Gundogar, Zubeyde UcarObjective: To evaluate the color stability, surface roughness, and microhardness of dental restorative materials in various pediatric liquid drugs (PLDs). Material and Methods: A total of 175 restorative material discs were prepared for the following groups (n=25): Filtek Ultimate (FU), ACTIVA BioACTIVE Restorative (AC), ADMIRA Fusion X-tra (AD), Beautifil II (BII), Equia Forte (EQ), Fuj & imath; II Lc (FII), Fuji IX (FIX). After the initial colour assessment was performed, surface roughness and microhardness values were measured. Specimens were divided into five subgroups (n = 5) for each test, including Aerius, Ferrosanol, Atarax, Keppra, and Ventolin. Measurements were repeated following a 4-week immersion cycle. The resulting data were analyzed statistically using the Shapiro-Wilk, Kruskal-Wallis, and Friedman tests. Results: The FII group showed the highest Delta E. However, there was no significant difference between the BII and EQ groups (p>0.05). The Ferrasanol B caused the most significant color change in materials (p < 0.05). The Ventolin significantly increased the surface roughness of the materials (p < 0.05). Following the PLD storage, the surface roughness of the BII and FIX groups increased, while the microhardness of the FU, BII, EQ, and FII groups decreased (p < 0.05). The Aerius, Atarax, Keppra, and Ventolin significantly disrupted the microhardness of the materials (p < 0.05). Conclusion: Pediatric liquid drugs may cause unfavorable effects on the color stability and surface properties of restorative materials.Öğe Comparison of computer controlled local anesthetic delivery and traditional injection regarding disruptive behaviour, pain, anxiety and biochemical parameters: a randomized controlled trial(Mre Press, 2024) Anil, Ozge; Keskin, GulThe study herein evaluated the effects of infiltrative anesthesia administered via different ways. Resultantly, the pain and anxiety were monitored using psychometric, physiological and biochemical methods. Sixty children aged 7-11 years (8.73 +/- 1.38) were included in the study. They were divided into 2 groups (n = 30): Traditional injection (control group), and computer controlled local analgesic delivery (CCLAD) (study group). Pulse, oxygen saturation (SpO(2)), and salivary cortisol levels were recorded, and the scales data (Visual Analogue Scale (VAS), Wong-Baker Faces Rating Pain Scale (WBS), Modified Child Dental Anxiety Scale (MCDAS) and Face, Leg, Activity, Cry, Consolability Behavioral Pain Assessment Scale (FLACC)) were evaluated. The data were statistically analyzed. Age and gender had not much impact on the measured parameters (p > 0.05). SpO(2) values in both groups were not significantly different (p > 0.05). Pulse, VAS, WBS, MCDAS, FLACC and salivary cortisol values were increased after the anesthesia in control group (p < 0.05). WBS, MCDAS, FLACC and salivary cortisol values were decreased after the anesthesia in study group compared to the control (p < 0.05). It was inferred that computer controlled local analgesic delivery system could be preferred in pediatric patients because of reduced pain and anxiety.Öğe Prevalence and characteristics of ectopic eruption of the first permanent molar and predictive factors for clinical outcome(Kerman Univ Medical Sciences, 2023) Kurkutan, Emine; Gundogar, Zuebeyde Ucar; Keskin, GulBackground: The primary objective of this study was to assess the occurrence, distribution, and features of ectopic first permanent molars (FPMs), as well as to investigate the clinical outcomes associated with ectopic eruption based on the degree of root resorption observed in primary second molars.Methods: This study was performed retrospectively by examining panoramic radiographs of 7070 patients aged 5 to 12 years. The gender and age of the patients, the number, location, and distribution mode of ectopic FPMs, the resorption degree of the distal roots of primary second molars, and the clinical outcome of ectopic eruption were evaluated. Descriptive statistics and chi-square test were performed on the obtained data using SPSS version 22 (SPSS Inc, Chicago, IL, USA).Results: In 144 of 7070 cases, a total of 221 ectopic permanent first molar teeth were detected (2% prevalence). The mean age of the 144 patients was 8.04 years. Ectopic eruption was most common in patients aged 7-8 years (48.63%), which was statistically significant (P< 0.05). Ectopic eruptions were more common in females (58.30%) than males (41.70%; P< 0.05). Of the ectopic permanent first molars, 78 (35.30%) were in the mandible, and 143 (64.70%) were in the maxilla. The relationship between the degree of resorption and the type of ectopic eruption was statistically significant (P< 0.05).Conclusion: The increase in the severity of root resorption in the primary second molars was a significant predictor for the prognosis of ectopic eruption in the present study. Early diagnosis and treatment of ectopic FPMs are of great importance to preventing premature loss of primary second molars resulting in malocclusion.Öğe Shear Bond Strength of Biointeractive Restorative Materials to NeoMTA Plus and Biodentine(Mdpi, 2025) Gundogar, Zubeyde Ucar; Keskin, Gul; Yaman Kucukersen, MerveBackground: The bonding compatibility between calcium silicate-based bioceramic cements and restorative materials is critical for long-term success in pediatric dentistry. This study compared the shear bond strength (SBS) of contemporary biointeractive restorative materials to two widely used bioceramics, NeoMTA Plus (NM) and Biodentine (BD). Methods: Eighty acrylic resin blocks with standardized cavities were filled with either NM or BD (n = 40 each) and subdivided into four restorative groups: nanohybrid composite (Filtek Ultimate), giomer (Beautifil II), bioactive restorative (Activa BioActive Restorative), and high-viscosity glass ionomer cement (Fuji IX GP Extra) (n = 10 each). All restorations followed a standardized etch-and-bond protocol. SBS was measured using a universal testing machine, and failure modes were assessed under a stereomicroscope. Data were analyzed using one-way ANOVA and Tukey's HSD (p < 0.05). Results: BD exhibited significantly higher SBS values than NM (p < 0.001). In the BD group, Filtek Ultimate and Beautifil II achieved the highest and statistically comparable SBS, outperforming Activa BioActive Restorative and Fuji IX GP Extra (p < 0.05). In the NM group, no significant differences were found among materials. Adhesive failures predominated in NM (85%), while BD showed more cohesive failures (50%). Conclusions: Biodentine demonstrated superior bonding stability to restorative materials, with composite resin and giomer performing best. Giomer's bioactivity and ion release make it a viable alternative to composite resin in suitable clinical contexts.Öğe Visualization of etching cycles efficacy at the resin infiltration into artificial enamel caries: in-vitro study on bovine teeth(Mre Press, 2024) Ciloglu, Mehmet; Keskin, GulThis study evaluated the effect of repeated etching cycles on resin infiltrant penetration. Enamel samples measuring 4 x 4 x 3 mm(3) were obtained from the facial aspect of 50 extracted bovine teeth. Samples were immersed in a demineralization solution for 21 days to create artificial lesions and divided into five equal groups (n = 10). A 15% hydrochloric acid gel was administered to each group. The acid etching application time differed between groups: Group 1; 2 min, Group 2; 2 x 2 min, Group 3; 3 x 2 min, Group 4; 4 x 2 min, and Group 5; 5 x 2 min. Resin infiltration was visualized using a confocal laser scanning microscopy. The lesion, penetration and erosion depth (mu m) were calculated, and data were statistically analyzed. The highest penetration depth (75.59 +/- 9.42 mu m) was seen in Group 5, followed by Groups 4, 3, 2 and 1. However, there were no statistically significant differences in the penetration depths between Groups 4 and 5 and between Groups 2, 3 and 4 (p > 0.05). In conclusion, a repeated etching cycle enhanced resin infiltrant penetration.
