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    Does repeated autoclave sterilization cause changes in the color and fragility of fiberglass reinforced resin crowns?
    (BMC, 2023) Delikan, Ebru; Caliskan, Secil; Caliskan, Ahmet; Ozdemir, Canan
    BackgroundSince the effects of sterilization on the Fiberglass Reinforced Resin Crowns (FRRCs) is not well-known the aim of current study was to evaluate the effects of autoclave sterilization on the fracture resistance, color stability, and surface composition of FRRCs.MethodsA total of 48 crowns were used. The crowns were divided into three groups according to the sterilization number: no sterilization (Control Group), one sterilization (Group 1), and four sterilizations (Group 2). The microstructure of the three crowns from each group was evaluated using scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) spectroscopy. Thirteen FRRCs from each group were first used for color stability testing and then for the fracture resistance analysis. One-way analysis of variance (ANOVA), one-way repeated measures ANOVA, and paired t-tests were used in the statistical analysis.ResultsEDX results revealed that the weight% of surface silicon atoms in group 2 was significantly higher. Some crack lines could be observed on the SEM images. Statistically significant differences were found in color stability following the first and fourth sterilization cycles (p < .01). The increase in the sterilization cycle did not statistically decrease the fracture resistance of the FRRCs (p = .055); however, overall, a decreasing trend was observed in fracture resistance as the sterilization cycle increased.ConclusionsAutoclave sterilization caused some changes in the surface elemental composition and surface morphology of FRRCs. Avoiding unnecessary FRRC trials is important to reduce the number of sterilizations.
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    Evaluation of Methods for Determining Working Length in Root Canal Treatment for Primary Molars: An In-Vivo Study
    (Aves, 2021) Caliskan, Secil; Delikan, Ebru; Cantekin, Kenan
    BACKGROUND/AIMS The aim of this study was to evaluate the effectiveness of tactile sensation, digital periapical radiography, and two varieties of electronic apex locators (EALs) as methods of determining working length in root canal treatment for primary molars. MATERIAL and METHODS In this study, 30 infected mandibular primary second molar teeth in 12 children aged 5-8 years were analyzed. The working length was determined for each tooth using the tactile sensation, digital radiography, the ProPex Pixi (R), and Ipex (R) apex locators separately. RESULTS The mean root canal measurements taken using tactile sensation, Ipex, radiography, and Propex Pixi were 11.02 +/- 2.05 mm, 9.47 +/- 1.71 mm, 9.73 +/- 1.57 mm, and 8.85 +/- 1.58 mm, respectively. The radiographic method yielded results that were similar to those derived with the apex locators but differed from the measurements obtained via tactile sensation. CONCLUSION EALs can be used to safely determine the working length in root canal treatment for primary molars.
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    Knowledge of Dental Avulsion Among Emergency Physicians: A Survey Study
    (Galenos Yayincilik, 2021) Caliskan, Secil; Delikan, Ebru; Kizilaslan, Sena; Ozbek, Ozge
    Aim: Dentoalveolar injuries are complex conditions affecting teeth and surrounding tissues and are frequently seen in children or adolescents. The purpose of this study was to investigate the levels of knowledge on dental avulsion among emergency physicians (EPs). Materials and Methods: A questionnaire was used to investigate EPs' level of knowledge and therapeutic approaches to avulsion. One hundred EPs were included in the study. The questionnaire was mailed to participants, and the data obtained were evaluated. Descriptive statistics and chi-square tests were used for statistical analysis. Results: Our results showed that although EPs frequently encountered dental traumas, their medical education had not included dental emergencies. The knowledge level of dental avulsion of all EPs included in the study was as follows; 24% low, 56% moderate and only 18% high. Conclusion: EPs possessed inadequate knowledge concerning the immediate treatment of dental avulsion. The treatment of avulsion should be included in the medical curriculum. This will result in appropriate emergency treatments in dental avulsion being provided in emergency settings.
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    Knowledge of Parents about Bruxism in their Children
    (Univ Costa Rica, Fac Odontologia, 2020) Caliskan, Secil; Delikan, Ebru; Ozcan-Kucuk, Ayse
    Objective: Bruxism is a jaw muscle activity disorder characterized by clenching or grinding of the teeth and can be seen in both children and adults. The purpose of this study is to evaluate the parental knowledge about bruxism in children. Methods: A cross-sectional study was conducted with 265 parents whose children were attended at University of Mersin pediatric dentistry and oral and maxillofacial surgery clinics. Children's ages varied from 6 months to 16 years old. A 20-questioned questionnaire was used to collect the data. IBM SPSS Statistics 22 for statistical analysis (SPSS IBM, Turkey) program was used for the analysis. Results: A total of 265 parents (159 were female and 106 were male) participated in the study. The majority of the parents were between the ages of 31-40 (60.8%). The rate of clenching and grinding of teeth during sleep (21.5%) was higher than the rate when they were awake (7.2%). The ratio of the parents seeking treatment for their children because of this harmful habit was very low (3.8%). The majortiy of parents (37.7%) reported that they seek help from dentists. The participants believed that bruxism was associated with dental problems (33.6%) and emotional factors (32.8%). A significant difference was found between the educational background of the parents and the ability to define bruxism. Conclusion: Parents had inadequate knowledge about bruxism in children and this was mostly related to the educational background of the parents.
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    The effect of two different irrigation needles on post-operative pain after pulpectomy in primary molar teeth: A randomized clinical study
    (Wiley, 2020) Topcuoglu, Gamze; Topcuoglu, Huseyin Sinan; Delikan, Ebru; Caliskan, Secil
    Background Post-operative pain (PP) following pulpectomy is of concern for endodontic patients and dentists. Aim This study evaluated the intensity of PP following pulpectomy in primary maxillary molars, using two irrigation needles. Design One hundred patients in ages ranging from 6-9 years requiring pulpectomy for asymptomatic primary teeth with non-vital pulp were included in the study. The participants were randomly assigned to two groups of 50 patients each, according to the type of irrigation needle used, that is, a conventional open-ended needle and a double side-vented needle. The teeth were obturated and then permanently restored. The presence of PP was assessed after six, 12, 24, 48, and 72 hours, and finally after one week, using a four-point pain intensity scale. The PP scores were then statistically analysed. Results In 6, 12, and 24 hours time intervals, patients who had their teeth irrigated with the open-ended needle exhibited more intense PP than those who had their teeth irrigated with a double side-vented needle (P < .05). After 48 hours, 72 hours, and 1 week, however there was no significant difference between the groups (P > .05). Conclusions Side-vented needles may be preferred in order to decrease PP at the first 24 hours after pulpectomy in primary molars.