Material Science in Endodontics

Topic Information

Dear Colleagues,

Thanks to contemporary endodontic materials, the efficiency and effectiveness of modern clinical endodontics have seen remarkable advances. By using newly introduced endodontic materials, the clinical success rate and postoperative prognosis of primary endodontic treatment and retreatment via nonsurgical or surgical root canal treatments has increased substantially.

In the field of endodontics, lots of brand-new devices and materials, including apex locator integrated motors, ultrasonic devices, heat-treated root canal shaping instruments, bioceramic materials such as MTA (mineral trioxide aggregates), calcium silicate sealers, and intracanal medicaments have been introduced and studied for their properties and effectiveness. Further scientific studies are needed to collate clinically relevant evidence for these contemporary endodontic materials.

It is my pleasure to invite scientists and researchers to submit a manuscript for this Topic on “Material Science in Endodontics”. Full papers of original articles, communications, and review articles are all welcome.

Prof. Dr. Hyeon-Cheol Kim
Dr. Minju Song
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Applied Sciences applsci	2.5	5.3	2011	18.4 Days	CHF 2400
Dentistry Journal dentistry	2.5	3.7	2013	26.2 Days	CHF 2000
Journal of Clinical Medicine jcm	3.0	5.7	2012	16 Days	CHF 2600
Journal of Functional Biomaterials jfb	5.0	4.6	2010	16.6 Days	CHF 2700
Materials materials	3.1	5.8	2008	13.9 Days	CHF 2600
Oral oral	-	-	2021	23.6 Days	CHF 1000

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Published Papers (4 papers)

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10 pages, 748 KiB  

Open AccessArticle

Efficacy of Articaine or Eugenol for Pain Relief after Emergency Coronal Pulpotomy in Teeth with Irreversible Pulpitis: A Randomized Clinical Trial

by Fernandez De Grado Gabriel, Bourdin Clément, Fioretti Florence, Musset Anne-Marie and Offner Damien

Dent. J. 2023, 11(7), 167; https://doi.org/10.3390/dj11070167 - 11 Jul 2023

Cited by 4 | Viewed by 3775

Abstract

Irreversible pulpitis is an extremely painful dental pathology. Its emergency treatment, pulpotomy, should include the use of a pulp dressing in the pulp chamber until the final treatment. Various antalgic products have been suggested as efficient medications to relieve the patient’s pain and [...] Read more.

Irreversible pulpitis is an extremely painful dental pathology. Its emergency treatment, pulpotomy, should include the use of a pulp dressing in the pulp chamber until the final treatment. Various antalgic products have been suggested as efficient medications to relieve the patient’s pain and are commonly used, but data for scientific validation are scarce. Objective: We evaluated the efficacy of articaine or eugenol in the diminution of pain after pulpotomy. Design: We included 100 patients with irreversible pulpitis and evaluated their initial pain levels. Pain was measured using a 0–10 numeric rating scale. After treatment through pulpotomy, we randomized them into two groups using either articaine or eugenol as a pulp dressing and evaluated their pain level at 1, 3 and 7 days. Results: Initial pain levels were severe (7.53). The use of painkillers was not associated with lower levels of pain. Both treatments showed great efficiency on day 1, with stronger efficiency of eugenol than articaine, showing a decrease of 6.24 versus 4.89 (p = 0.025). Both treatments were efficient, whatever the age or sex of the patient, the initial pain level, and the causal tooth. Conclusion: Pulpotomy is an efficient way to relieve pain, using either articaine or eugenol. When choosing a pulp dressing, eugenol should be the first choice. Full article

(This article belongs to the Topic Material Science in Endodontics)

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9 pages, 5530 KiB  

Open AccessArticle

Effect from Autoclave Sterilization and Usage on the Fracture Resistance of Heat-Treated Nickel–Titanium Rotary Files

by Rashid El Abed, Dana Al Raeesi, Aisha Alshehhi, Zuhair Alkhatib, Amar H. Khamis, Mohamed Jamal and Hyeon-Cheol Kim

Materials 2023, 16(6), 2261; https://doi.org/10.3390/ma16062261 - 11 Mar 2023

Cited by 3 | Viewed by 2791

Abstract

This study aimed to assess the effect of mechanical loading and heating on the cyclic fatigue and torsional fracture resistances of heat-treated nickel–titanium files after usage and autoclaving. Sixty files (One Curve) were tested for cyclic fatigue and torsional fracture resistances using customized [...] Read more.

This study aimed to assess the effect of mechanical loading and heating on the cyclic fatigue and torsional fracture resistances of heat-treated nickel–titanium files after usage and autoclaving. Sixty files (One Curve) were tested for cyclic fatigue and torsional fracture resistances using customized devices. The files were divided into three groups according to the test conditions (n = 10); new (group-N), used for simulated canal shaping (group-U), and sterilized after use (group-S). For cyclic fatigue resistances, the files were freely rotated in a curved metal canal under body temperature; the time elapsed to fracture was recorded and the numbers of cycles to fracture (NCF) were calculated. For the torsional resistances, the file tip was fixed and rotated until the file fractured. The maximum torsional load and distortion angle were recorded. The toughness was calculated. Fracture fragments were examined with a scanning electron microscope. Data were analyzed using a one-way analysis of variance and Tukey’s post hoc test at the significance level of 95%. Group-U showed significantly higher NCF than group-S (p < 0.05). However, there was no significant differences between groups-N and -S in the NCF (p > 0.05). Group-N showed a significantly bigger distortional angle and higher torsional toughness than groups-U and -S, but the ultimate torsional strength did not have significant difference between the groups. Under the limitation of this study, autoclave sterilization after single-usage did not improve the fracture resistance of heat-treated One Curve nickel–titanium files. Full article

(This article belongs to the Topic Material Science in Endodontics)

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12 pages, 5030 KiB  

Open AccessEditor’s ChoiceArticle

Fracture Resistance of Repaired 5Y-PSZ Zirconia Crowns after Endodontic Access

by Andreas Greuling, Mira Wiemken, Christoph Kahra, Hans Jürgen Maier and Michael Eisenburger

Dent. J. 2023, 11(3), 76; https://doi.org/10.3390/dj11030076 - 7 Mar 2023

Cited by 6 | Viewed by 2941

Abstract

This study analyzed the fracture load before and after a chewing simulation of zirconia crowns that were trepanned and repaired using composite resin. Overall, 3 groups with 15 5Y-PSZ crowns in each group were tested. For group A, the fracture load of the [...] Read more.

This study analyzed the fracture load before and after a chewing simulation of zirconia crowns that were trepanned and repaired using composite resin. Overall, 3 groups with 15 5Y-PSZ crowns in each group were tested. For group A, the fracture load of the unmodified crowns was evaluated. For group B, the crowns were trepanned and repaired using composite resin, also followed by a fracture test. For group C, crowns were prepared like in group B but received thermomechanical cycling before the final fracture tests. Furthermore, scanning electron microscopy (SEM) and X-ray microscopy (XRM) analysis were performed for group C. The mean fracture loads and standard deviation were 2260 N ± 410 N (group A), 1720 N ± 380 N (group B), and 1540 N ± 280 N (group C). Tukey-Kramer multiple comparisons showed a significant difference between groups A and B (p < 0.01) and groups A and C (p < 0.01). After ageing, surface fissures were detected via SEM, but no cracks that reached from the occlusal to the inner side of the crown were detected via XRM. Within the limitations of this study, it can be stated that trepanned and composite-repaired 5Y-PSZ crowns show lower fracture loads than 5Y-PSZ crowns without trepanation. Full article

(This article belongs to the Topic Material Science in Endodontics)

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9 pages, 1216 KiB  

Open AccessArticle

Pilot Evaluation of Sealer-Based Root Canal Obturation Using Epoxy-Resin-Based and Calcium-Silicate-Based Sealers: A Randomized Clinical Trial

by Minju Song, Min-Gyu Park, Sang-Won Kwak, Ruben H. Kim, Jung-Hong Ha and Hyeon-Cheol Kim

Materials 2022, 15(15), 5146; https://doi.org/10.3390/ma15155146 - 25 Jul 2022

Cited by 18 | Viewed by 3222

Abstract

The purpose of this randomized controlled clinical trial was to assess the short-term clinical effectiveness of sealer-based root canal obturation using calcium-silicate-based sealer (CSBS) and epoxy-resin-based sealer (ERBS). A total of eighty patients (eighty teeth) were enrolled and seventy-two patients (seventy-two teeth) were [...] Read more.

The purpose of this randomized controlled clinical trial was to assess the short-term clinical effectiveness of sealer-based root canal obturation using calcium-silicate-based sealer (CSBS) and epoxy-resin-based sealer (ERBS). A total of eighty patients (eighty teeth) were enrolled and seventy-two patients (seventy-two teeth) were randomly assigned into four different sealer groups: AH Plus (AH, Dentsply Sirona), ADseal (AD, Meta Biomed), CeraSeal (CS, Meta Biomed), or EndoSeal TCS (ES, Maruchi). At the first visit, root canal treatment was performed using ProTaper. Next, the NiTi file system and passive ultrasonic irritation was applied with 2.5% NaOCl. At the second visit, the teeth were obturated with a sealer-based obturation technique using the assigned sealer. The quality of filling obturation was evaluated with postoperative radiographs in terms of the presence of voids and sealer extrusion. The patients were recalled at 1-week, 1-month, and 3-month intervals, and pain levels were measured using visual analog scales (VAS), and clinical examination performed with percussion and palpation. Radiographs were also taken. The results were statistically compared by using the χ² test or Fisher exact test. Among the 80 teeth included, 72 teeth received allocated intervention and 71 teeth were included in the analysis (98.6% recall). There was no significant difference among the sealers in void and sealer extrusion (p > 0.05). Postoperative pain was not indicated prominently regardless of the type of sealer. For a 3-month follow-up period, all cases were maintained successfully except for one case from AD. According to the findings, there was no significant difference between CSBS and ERBS in terms of postoperative pain or the healing process, and the variation in filling quality appears to be linked to the properties of each product. Full article

(This article belongs to the Topic Material Science in Endodontics)

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