Vol. 3 (2022): Journal of Medical and Dental Investigations

DOI: https://doi.org/10.5577/jomdi.vol3.2022

Published: 01.01.2022

Original Article

Evaluation of the impact of different irrigation agents and temperatures on the bond strength of resin cement used in bonding fiber posts to dentin

Aim: The aim of this study was to evaluate the bond strength of resin cement used in bonding fiber-reinforced composite pulp to canal dentin walls treated with various irrigation agents at different temperatures. Methods: Seventy-two extracted teeth (single-rooted lower first and second premolars) were used. The teeth were divided into six groups according to the final irrigation solutions applied to the post cavity (n = 12 in each group). The groups were as follows: QMix 2 in 1, 25ºC (group 1); QMix 2 in 1, 40°C (group 2); 2% chlorhexidine digluconate (CHX), 40°C (group 3); 17% ethylenediaminetetraacetic acid (EDTA), 25 °C (group 4); 17% EDTA, 40°C (group 5); and CHX, 25°C (group 6). The irrigation agents were applied for 60 seconds, and root canals were dried. Horizontal sections were obtained 24 hours after fiber post cementation. The bond strength between the fiber post and dentin wall was measured using a push-out tester and recorded. The difference between the two groups was determined by the independent Student’s t-test, one-way ANOVA, and Tukey HSD post-hoc test for more than two groups (p<0.05). Results: The highest apical strength was observed in group 2 (42.240 ± 4.969) and the lowest in group 6 (2.160 ± 0.825). The highest coronal strength was observed in group 5 (55.435 ± 5.396) and the lowest in group 3 (5.139 ± 0.977) (p<0.05). There was a statistically significant difference between the coronal and apical regions in group 1 and group 6 (p<0.05). Conclusion: The best bonding strength in apical regions was obtained using QMix 2 in 1 (40ºC), and the best bonding strength in coronal regions was achieved using 17% EDTA (40ºC). How to cite this article: Öztekin F, Tekin S. Evaluation of the impact of different irrigation agents and temperatures on the bond strength of resin cement used in bonding fiber posts to dentin. J Med Dent Invest 2022;3:e221150. https://doi.org/10.5577/jomdi.e221150 Linguistic revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English. Checked for plagiarism: Yes

CHX, QMix, EDTA, fiber post, resin cement, push-out test

Faruk Öztekin, Samet Tekin
e221150
Abstract Views: 1249 Download: 0 10.5577/jomdi.e221150
Evaluation of the knowledge levels of dentists and healthcare personnel regarding the changes in dental practice that had occurred during the COVID-19 pandemic

Aim: Coronavirus disease 2019 (COVID-19), which has been declared a pandemic by the World Health Organization, poses a great risk of transmission throughout society, especially among healthcare workers. The aim of this study was to evaluate the knowledge levels of dentists and healthcare personnel regarding the changes in dental practice that had occurred during the COVID-19 pandemic. Methods: An online questionnaire was sent to dentists and health personnel working in Diyarbakır, Turkey within the period from December 30, 2021 to January 6, 2022, using WhatsApp, e-mail, and special social platforms. The questionnaire was designed to identify the sociodemographic characteristics of the respondents and their awareness of new clinical procedures and of the changes in dental practice that had occurred during the COVID-19 pandemic. The data obtained from 239 dentists and healthcare personnel in Diyarbakır [118 (49.4%) female and 121 (50.6%) male; 177 dentists and 62 healthcare personnel] were evaluated. Results: Of the dentist participants, 12.7% reported that they did not perform active dental treatment during the COVID-19 pandemic due to their concerns about being infected by their patients with COVID-19 or their existing comorbidities (chronic diseases). Of the participants, 24.6% had acquired COVID-19. Most of the participants used personal protective equipment when conducting all types of dental procedures, including examinations. Conclusion: Dentists and healthcare personnel play an important role in controlling COVID-19 infection. It is very important to be aware of the possible transmission routes of COVID-19 in clinical applications, to use protective equipment during treatments, and to pay attention to personal hygiene. How to cite this article: Yılmaz UN, Eriş Derkuş F, Dündar Yılmaz B. Evaluation of the knowledge levels of dentists and healthcare personnel regarding the changes in dental practice that had occurred during the COVID-19 pandemic. J Med Dent Invest 2022;3:e221164. https://doi.org/10.5577/jomdi.e221164 Linguistic revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English. Checked for plagiarism: Yes

COVID-19, clinical practice, dentistry, pandemic

Utku Nezih Yılmaz, Fatma Eriş Derkuş, Berivan Dündar Yılmaz
e221164
Abstract Views: 1151 Download: 0 10.5577/jomdi.e221164
Evaluation of time exposure of different irrigation agents on radicular dentin erosion

Aim: The amount of root dentin erosion caused by Ethylene diamine tetraacetic acid (EDTA), Glycolic acid (GA), and Etidronic acid (HEDP) solutions applied with sonic activation (SA) for 1 and 3 minutes during the final irrigation was evaluated in this in vitro study. Methods: Using 5 ml of 2.5% NaOCl irrigation solution in each sample, 70 mandibular premolars were enlarged with the Reciproc R25 rotary instrument system. The samples were randomly divided according to the final irrigation protocol into 6 experimental groups (n:10) and 1 control group (n:10): Group 1 (17% EDTA – 1 min SA), Group 2 (17% EDTA – 3 min SA), Group 3 (10% GA – 1 min SA), Group 4 (10% GA – 3 min SA), Group 5 (18% HEDP – 1 min SA), Group 1 (18% HEDP – 3 min SA) and Group 7 (Negative control group-distilled water, 1 min SA). The teeth were divided into two parts longitudinally after the final irrigation protocol. A low vacuum scanning electron microscope (SEM) was used to image the samples’ coronal, middle, and apical root areas at x2000 magnification. Samples were evaluated using a triple-scoring system. Results: Data were analyzed by Shapiro Wilk, Kruskal Wallis H, Mann-Whitney U, and Dunn’s tests. There was no statistically significant difference between EDTA, GA, and HEDP in both periods ( p > 0.05). Conclusion: We saw similar amounts of erosion in dentin in 1 and 3 minutes of chelation applications for all chelators. Considering the smear removal efficiency of chelators, there is no harm in increasing the time in terms of erosion. There is a need for studies on the clinical applicability of chelation with a different duration time. How to cite this article: Okumuş ÖF, Kaya S, Adıgüzel Ö, Yeniçeri Özata M. Evaluation of time exposure of different irrigation agents on radicular dentin erosion. J Med Dent Invest 2022;3:e221170. https://doi.org/10.5577/jomdi.e221170 Linguistic revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English. Checked for plagiarism: Yes

Glycolic acid, EDTA, Etidronic acid, dentin erosion, chelating agents, sonic activation

Ömer Ferşat Okumuş, Sadullah Kaya, Özkan Adıgüzel, Merve Yeniçeri Özata
- PDF
e221170
Abstract Views: 1088 Download: 1059 10.5577/jomdi.e221170

Journal Issue

Vol. 7 No. S1 (2026) Continuous Publication

View Current Issue

Published Volumes

2026

2025

2024

Vol. 5 (2024): Journal of Medical and Dental Investigations

2023

Vol. 4 (2023): Journal of Medical and Dental Investigations

2022

Vol. 3 (2022): Journal of Medical and Dental Investigations

Show more Show less

2021

Vol. 2 (2021): Journal of Medical and Dental Investigations

socialshare

Submit Your Paper

Become a Reviewer

sidebarmenu

Journal Menu

Abstracting & Indexing

Peer Review Process

Ethics Statement

Plagiarism Policy

Digital Archiving Policy

Corrections and Retractions

idr

Citations

Updated daily

0 5 10 15 20

2 2023
7 2024
20 2025
12 2026

Citations per year
Year	Citations
2023	2
2024	7
2025	20
2026 (to date)	12

2026 counts citations recorded so far this year.

ithenticate

Latest publications

Information

Browse

visitors

Visitors

View My Stats

announcement

Announcement