International Dental Research https://www.dental-research.com/index.php/idr <p align="justify"><em>International Dental Research </em>is a multidisciplinary&nbsp;double-blind peer-reviewed dental journal publishing articles in the field of dentistry. The <em>International Dental Research</em> is the official tri-annually publication (April, August, December).&nbsp;</p> <p align="justify">The <em>&nbsp;International Dental Research</em> publishes scientific articles, case reports and comparison studies evaluating materials and methods of dental treatment. Dentists can learn about new concepts in dental treatment and the latest advances in techniques and instrumentation in the one journal that helps them keep pace with rapid changes in this field. The journal also aims to provide clinicians, scientists and students of dentistry with a knowledge transfer platform for rapid publication of reports through an international journal, which will be available free online. The broad coverage of current research has given the journal an international reputation as an indispensable source for both basic scientists and clinicians engaged in understanding and preventing dental disease. All articles will be critically reviewed by the editor and invited referees within 2 months. No fees are requested from the authors for submission and publication process.</p> en-US info@dental-research.com (Prof. Dr. Ozkan ADIGUZEL) support@dental-research.com (1. Dr. Seda Falakaloglu, 2. Dr. Ceren Aktuna Belgin) Tue, 30 Apr 2019 00:00:00 +0000 OJS 3.1.1.2 http://blogs.law.harvard.edu/tech/rss 60 Root canal cleaning with different reciprocating and rotary instrumentation systems https://www.dental-research.com/index.php/idr/article/view/138 <p><strong>Aim: </strong>The purpose of the present study was to compare the cleaning effectiveness of two reciprocating single-file systems with ProTaper Next and ProTaper Universal rotary instruments during the preparation of single-rooted extracted teeth.</p> <p><strong>Methodology: </strong>Sixty freshly extracted single-rooted human teeth were randomly divided into 4 groups (n=15). In group 1, root canals were prepared with ProTaper Universal, in group 2, they were prepared with ProTaper Next, in group 3, they were prepared with WaveOne and in group 4, root canals prepared with Reciproc systems. Canals were prepared to the following apical sizes: ProTaper Universal F3, ProTaper Next X3, WaveOne Primary and Reciproc 25. The irrigant in all groups was 2ml 2.5% sodium hypochlorite (NaOCl) solution, the final irrigation after preparation all groups was 2ml NaOCl, 2ml EDTA and 2ml saline solution. The roots were split longitudinally into halves and the canals examined using a scanning electron microscope. The presence of a debris and smear layer was recorded at the coronal, middle and the apical thirds of root canals using a five-step scoring scale. Data were statistically analyzed using Kruskal-Wallis and Mann-Whitney U tests.</p> <p><strong>Results:</strong> All groups showed more efficient smear layer and debris removal coronally than in the middle and apical regions, whereas the mean total debris score and the mean smear layer score in all groups were less in the WaveOne and the Reciproc groups.</p> <p><strong>Conclusions: </strong>Under the conditions of this study, for root canal cleanliness Reciproc and WaveOne may be preferred rather than ProTaperUniversal and ProTaperNext.</p> <p>&nbsp;</p> <p><strong>How to cite this article: </strong>İnce Yusufoğlu S, Arı Aydınbelge H. Root canal cleaning with different reciprocating and rotary instrumentation systems. Int Dent Res 2019;9(1):1-8.</p> <p>&nbsp;</p> <p><strong>Linguistic Revision:</strong>&nbsp;The English in this manuscript has been checked by at least two professional editors, both native speakers of English.</p> Selen İnce Yusufoğlu, Hale Arı Aydınbelge ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://www.dental-research.com/index.php/idr/article/view/138 Tue, 30 Apr 2019 22:42:44 +0000 The knowledge, attitude and practices of Turkish general dentists on dental x-rays in pregnant women https://www.dental-research.com/index.php/idr/article/view/147 <p><strong>Aim:</strong> The purpose of this study was to evaluate the knowledge, attitude and practices of the general dental dentists working in Turkey on the dental x-rays in pregnant women; and to develop awareness for the purpose of not delaying their dental treatments.</p> <p><strong>Methodology:</strong> The questionnaire that was used in the study was applied to 270 dental dentists who worked in Turkey in electronic medium. The questionnaire consisted of 2 sections each of which had 11 questions. In the first section, the demographical data were questioned. In the second section, there were questions to determine the knowledge, attitude and practices of the dentists on x-ray in pregnant women. The questionnaires that were completed were examined and analyzed statistically by using the results and the Chi-Square Test and the Chi-Square Test. Data analysis was performed by using Statistical Package for the Social Sciences version 23.0 (SPSS Inc., Chicago, IL, the USA).</p> <p><strong>Results:</strong> A total of 71.1% of the dental practitioners who participated in the study stated that they did not request radiography from pregnant women. A total of 62.2% of the dental dentists stated that they preferred the 2<sup>nd</sup> Trimester for requesting radiography. A total of 38.9% of the general dentists who participated in the study stated that the diagnostic radiographies used in dentistry caused anomalies in the fetus, 18.9% stated that they did not have any information.</p> <p><strong>Conclusion:</strong> Further training courses must be planned to increase and update the awareness of the dental dentists on the precautions and procedures for radiography practice in pregnant women; and brochures must be prepared for pregnant women to provide information about this subject. Also, dental dentists and obstetricians should work in agreement about dental procedures in pregnancy and diagnostic radiography in terms of its being safe when necessary.</p> <p>&nbsp;</p> <p><strong>How to cite this article:&nbsp;</strong>Temur KT, Temur İ, Hatipoğlu Ö.&nbsp; The knowledge, attitude and practices of Turkish general dentists on dental x-rays in pregnant women. Int Dent Res 2019;9(1):9-15.&nbsp;</p> <p>&nbsp;</p> <p><strong>Linguistic Revision:</strong>&nbsp;The English in this manuscript has been checked by at least two professional editors, both native speakers of English.</p> Katibe Tuğçe Temur, İsa Temur, Ömer Hatipoğlu ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://www.dental-research.com/index.php/idr/article/view/147 Tue, 30 Apr 2019 22:46:43 +0000 The effects of different irrigation agents on root canal dentine micro-hardness and surface roughness https://www.dental-research.com/index.php/idr/article/view/171 <p><strong>Aim: </strong>Successful endodontic treatments rely on sufficient mechanical preparation and irrigation of the root canal followed by an adequate three-dimensional filling. This study investigated the changes in root dentine micro-hardness and surface roughness upon treatment with different irrigating agents.</p> <p><strong>Methodology:</strong> A total of 60 human maxillary incisors and canine teeth were used in this study. The crowns of all teeth were decoronated and roots were divided longitudinally. The samples were separated into three groups prior to irrigation. A 5% NaOCl irrigation agent was applied to the first group, a QMix agent was used for the second group, and a 2% CHX agent was used for the third group. All irrigations were performed for 15 minutes. Following irrigation, microstructural and surface-roughness measurements were taken again from all samples.</p> <p><strong>Results:</strong> Micro-hardness was not significantly different between QMix or 5% NaOCl (p&gt;0.05). A significant difference was observed between the QMix- and 2% CHX-treated groups, and between the 5% NaOCl- and QMix-treated groups (p&lt;0.05). A significant difference in surface roughness was observed between the QMix and 2% CHX, and between the 5% NaOCl and QMix (p&lt;0.05). No difference in surface roughness was observed between 5% NaOCl or 2% CHX. The 5% NaOCl and QMix agents reduced the dentine micro-hardness equal to or more than that of the 2% CHX agent. The QMix agent also increased the dentine surface roughness significantly more than the other agents. The 5% NaOCl and 2% CHX agents increased surface roughness equally.</p> <p><strong>Conclusions:</strong> It was seen that all of the irrigation agents used in our study affected dentin microhardness and surface roughness at different rates.</p> <p>&nbsp;</p> <p><strong>How to cite this article: </strong>Öztekin F, Adıgüzel Ö. The effects of different irrigation agents on root canal dentine micro-hardness and surface roughness. Int Dent Res 2019;9(1):16-21.</p> <p>&nbsp;</p> <p><strong>Linguistic Revision:</strong>&nbsp;The English in this manuscript has been checked by at least two professional editors, both native speakers of English.</p> Faruk Öztekin, Özkan Adıgüzel ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://www.dental-research.com/index.php/idr/article/view/171 Tue, 30 Apr 2019 00:00:00 +0000 Investigation of the effects of different chelating solutions on the microhardness and surface roughness of root canal dentin https://www.dental-research.com/index.php/idr/article/view/159 <p><strong>Introduction: </strong>The purpose of this study is to examine the effect of different chelating solutions on microhardness and surface roughness of root canal dentin.</p> <p><strong>Methodology:</strong> The crowns of sixty recently extracted maxillary central incisors were separated by diamond burs from the cemento-enamel junction. Roots are divided longitudinally into two pieces with diamond saw. The obtained samples were embedded in autopolymeric-acrylic and the dentin-surfaces of the teeth were grounded. Micro-hardness and surface-roughness measurements were carried out before the chelating processes. First group, the specimens were treated with gel-formed 17% Ethylenediaminetetraacetic acid [EDTA] (JE), second group, specimens were treated with 17% Liquid-formed EDTA (LE), third group, specimens were treated with 20% Citric acid (CA), and the last group specimens were treated with 7% Maleic acid (MA) for 120 seconds. After application of the chelating agents, micro-hardness and surface-roughness measurements of all samples were performed again. The difference between the initial and final measurements was calculated and statistically analyzed. One Way Analysis of Variance ANOVA was used for statistical-analysis and statistically significant difference was observed between the groups (p &lt;0.05).</p> <p><strong>Results: </strong>According to the test results, the microhardness of LE was statistically equal to that of JE and caused the least decrease in micro-hardness, SA decreased micro-hardness more than LE and JE, and MA decreased dentin micro-hardness more than all other solutions. And surface-roughness results are: MA increased surface-roughness more than other groups, SA and JE less roughened the dentin surface than MA, and there was no significant difference between the two solutions, LE caused less increase in dentin surface roughness compared to all solutions.</p> <p><strong>Conclusions: </strong>Besides the use of EDTA and SA, the clinical use of MA can be considered, and it should also be noted that EDTA differs in terms of surface roughness between liquid and gel forms.</p> <p>&nbsp;</p> <p><strong>How to cite this article: </strong>Topbaş C, Adıgüzel Ö, Çölgeçen Ö. Investigation of the effects of different chelating solutions on the microhardness and surface roughness of root canal dentin. Int Dent Res 2019;9(1):22-9.</p> <p>&nbsp;</p> <p><strong>Linguistic Revision:</strong>&nbsp;The English in this manuscript has been checked by at least two professional editors, both native speakers of English.</p> Celalettin Topbaş, Özkan Adıgüzel, Özlem Çölgeçen ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://www.dental-research.com/index.php/idr/article/view/159 Tue, 30 Apr 2019 00:00:00 +0000 Volumetric pulp chambers measurements in mandibular and maxillary permanent first molar using cone-beam computed tomography by age and gender https://www.dental-research.com/index.php/idr/article/view/153 <p><strong>Aim:</strong> The aim of this study was to demonstrate the anatomical structure of pulp chamber, measure the volume of the total pulp chambers in mm<sup>3 </sup>and evaluate the pulp chamber volume changes by age and gender statistically in mandibular and maxillary first molars by means of CBCT.</p> <p><strong>Methodology:</strong> In our study, CBCT examinations of patients between the ages of 7-18 years, which were carried out due to different reasons were evaluated retrospectively. The CBCT images of healthy total of 160 lower and upper right permanent first molar teeth were selected randomly and the volumes of the total pulp chamber were measured in mm<sup>3</sup> with the 3D Slicer software program. We analyzed the collected data with statistical analysis methods and we evaluated whether there was any difference between the patients grouped according to the age in respect of volume changes in the total pulp chamber and whether there was any difference between the mean volume values and gender of the patients within the same group.</p> <p><strong>Results:</strong> Comparison of the volume measurements of the lower and upper first permanent molar teeth between the groups showed that the volume values of the total pulp chamber decreased depending on the age (p&lt;0.05). Regarding gender, volume decrease related to age was statistically more significant among females. We determined in all age groups except age 7-9 group that the volume value of the total pulp chamber of the upper permanent first molar teeth was statistically higher than the volume value of the total pulp chamber of the lower permanent first molar teeth (p&lt;0,05).</p> <p><strong>Conclusion:</strong> We believe that CBCT is an easy and conservative method for the 3D-imaging of the pulp chamber, volume measurement and examination of the dimensional changes of the total pulp chamber depending on deposition of secondary dentin.</p> <p>&nbsp;</p> <p><strong>How to cite this article: </strong>Açıklar Kavas A, Tümen EC. Volumetric pulp chambers measurements in mandibular and maxillary permanent first molar using cone-beam computed tomography by age and gender. Int Dent Res 2019;9(1):30-40.</p> <p>&nbsp;</p> <p><strong>Linguistic Revision:</strong>&nbsp;The English in this manuscript has been checked by at least two professional editors, both native speakers of English.</p> Anıl Açıklar Kavas, Emin Caner Tümen ##submission.copyrightStatement## http://creativecommons.org/licenses/by-nc-nd/4.0 https://www.dental-research.com/index.php/idr/article/view/153 Tue, 30 Apr 2019 00:00:00 +0000