Aim: Resin-containing restorative materials are widely used in the restoration of teeth. Our aim in this study is to examine the color change of beverages consumed cold on resin-containing restorative materials. Methodology: Samples were prepared using composite resins and resin-based CAD/CAM blocks. All prepared samples were kept in cold tea, cold coffee, coke, energy drink, and distilled water after polishing. The color values of the samples were measured with a spectrophotometer at the beginning, on the 1st, 7th and 30th days, and the color change values were calculated with the CIEDE2000 formula. Statistical analysis of color change values was performed using two-way analysis of variance (ANOVA) and Tukey multiple comparison tests (p<0.05). Results: While there was no statistically significant difference in the color changes of the resin-containing dental materials at the end of the 1st day (p>0.05), at the end of the 7th and 30th days, cold tea caused the statistically highest color change (p<0.05). There was no statistically significant difference between the color change values of cold coffee, coke and energy drink on the materials in all time periods (p>0.05). Composite resins showed more color change than resin-based CAD/CAM blocks (p<0.05). Conclusion: Cold tea causes the most discoloration on resin-based materials. While the resin-containing CAD/CAM blocks showed a color change under the AT value in all cold drinks, the composite resins showed a color change above the AT value in cold tea and coffee. How to cite this article: Altıparmak ET, Aybala Oktay E, Karaoğlanoğlu S, Aydın N, Ersöz B, Özarslantürk S. The effect of cold drinks on the coloration of resin-containing restorative materials. Int Dent Res 2022;12(1):14-20. https://doi.org/10.5577/intdentres.2022.vol12.no1.3 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Introduction: This study aimed to evaluate the relationship between dental amalgam filling and cognition in older adults. Materials and Methods: A total of 169 patients aged 65 years and above were recruited from a geriatric outpatient clinic. Their socio-demographic and chronic disease data were recorded. All patients underwent oral examinations. Amalgam filling index scores were calculated for individuals with amalgam fillings. The participants were divided into a study group [amalgam (+)] and a control group [amalgam (–)] based on their amalgam-filling statuses. For sub-analysis, the amalgam-filled group was categorised according to high (≥4.191) and low (<4.191) mean index scores. Standardised mini-mental test, clock drawing test and Lawton–Brody instrumental activities of daily living scale were conducted for all patients. Results: About 46.2% (n=78) of participants were female, mean age was 69.6 ± 6.3 years and 53.7% (n=89) had amalgam fillings. There was no significant difference in the standardised mini-mental test, clock drawing test and Lawton–Brody instrumental activities of daily living scale scores between the study and control groups (all p>0.05), or in all test scores between participants with high and low amalgam scores in the group with amalgam fillings. Conclusions: This study showed that dental amalgam fillings were not associated with cognitive decline in older adults. Keywords: Aged; Cognitive Dysfunction; Dental Amalgam.
Statement of the problem: It is important for oral surgeons to deter-mine the precise location of mandibular third molar before extraction. The close relationship of mandibular canal and mandibular third molar is a risk factor for alveolar nerve damage. Objective: The purpose of this study is to assess the relationship between mandibular canal and the mandibular third molar which has alre-ady been seen in close relationship on panoramic radiograph (PR) by the comparison of findings of the cone-beam computed tomography (CBCT) and the PR. Materials & Methods: Close relationship between the mandibular third molar and mandibular canal was scanned in 180 patients by the PR. Images were also obtained by CBCT from patients among which a close-relationship was detected between mandibular canal and mandibular third molar. Results: Close relationship was detected between mandibular third molar and mandibular canal on 26 of 180 PR and evaluated 46 mandibular third molars. In 41 cases, both the findings in PR and in CBCT images showed compliance with each other. As a result it was clearly seen that the mandibular third molars which were detected to be in close relationship on PR were mostly also in close relationship with mandibular canal on CBCT-images. Conclusions: If the close relationship is not seen on the panoramic images then there is no need to get CBCT for extracting the mandibular third molars. By this way complication risks are eliminated with less radia-tion. However CBCT should be definitely used in cases which complete as-sessment cannot be made in no way due to artifacts such as superposition in PR.
Mandibular canal and its neurovascular contents are highly important structures for dental clinicals. Accurate localization of the mandibular canal and determination of its variations are crucial aspects to achieve successful surgical results without complications. Inferior alveolar nerve, artery, and vein could be damaged during surgical interventions and serious complications may occur in post-operative period, such as permanent paraesthesia. Thus, the patients’ health and social life may be seriously affected. The aim of this study was to investigate the prevalence and features of mandibular canal variations in a group Turkish population using cone beam computed tomography (CBCT) and orthopantomography (OPG) techniques. This retrospective study was performed on CBCT and OPG images of 700 patients whose mandibular canal area was clearly observed and aged over 20 years old which were referred to our clinic between 2011-2016. Patients with congenital or acquired deformity affecting the mandible were excluded from the study. In order to make comparative analysis, various measurements were made on both types of imaging. In our study, mandibular canal variation rates were identified as 2.43% (17/700) and 8.57% (60/700) on OPG images and CBCT images, respectively. As a result of our study, it could be said that the mandibular canal variations are not rare cases for the Turkish population. Before risky surgical procedures and when there is a suspicious diagnosis due to inadequacy of OPG imaging method; the CBCT imaging method should be referred in order to prevent complications such as hemorrhage, paresthesia, and traumatic neuroma.
Background: This study was conducted to examine the stress levels of individuals who admitted for dental treatment during the normalization process of the COVID-19 pandemic, the level of knowledge about the COVID-19 and the reasons of admission for treatment. Methods: 990 people aged between 18-60+, who admitted to the Dentistry Faculty, participated in the study. The questionnaire directed to individuals consisted of questions measuring their democratic knowledge, reasons for applying for dental treatment and their stress levels. Analysis of the data in the study was evaluated using the Pearson Chi-Square test (p
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