{"title":"Micro-computed tomography evaluation of minimally invasive root canal preparation in 3D-printed C-shaped canal","authors":"Nutcha Supavititpattana DDS, Siriwan Suebnukarn DDS, PhD, Panupat Phumpatrakom DDS, MSc, FRCDS, Kamon Budsaba PhD","doi":"10.1111/aej.12890","DOIUrl":"10.1111/aej.12890","url":null,"abstract":"<p>This study aimed to evaluate and compare the shaping abilities and minimum dentin thickness of minimally invasive rotary instruments via micro-computed tomography. Twelve 3D-printed C-shaped canal models from a mandibular molar were divided into two groups, and root canals were prepared with either XP-endo Rise (XR) or TruNatomy (TN) systems. Pre- and post-preparation evaluations included canal volume, prepared area and minimum dentin thickness. No significant differences were found in canal volume change (XR: 22.66 ± 4.28%, TN: 23.02 ± 5.10%), prepared canal area (XR: 31.86 ± 10.72%, TN: 30.26 ± 11.59%) and minimum dentin thickness (XR: 0.30 ± 0.05 mm, TN: 0.28 ± 0.05 mm) between groups (<i>p</i> > 0.05). The canal volume change in the middle third was significantly higher than that in the coronal and apical thirds (<i>p</i> < 0.05) in both groups. In conclusion, XR demonstrated comparable shaping abilities and minimum dentin thickness to TN in preparing 3D-printed C-shaped canals.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"621-628"},"PeriodicalIF":1.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reham Hassan, Maha Nasr, Hams H. Abdelrahman, Mohamed G. Hassan
{"title":"Sharing endodontic research on social media platforms: Is it effective? A 10-year timeline analysis","authors":"Reham Hassan, Maha Nasr, Hams H. Abdelrahman, Mohamed G. Hassan","doi":"10.1111/aej.12887","DOIUrl":"10.1111/aej.12887","url":null,"abstract":"<p>The purpose of this study was to analyse the social media activity related to endodontic research over the last 10-years. All research articles published in endodontic journals listed in Scopus (Sc) published in 2012 and 2018 were included in our study. The Altmetric Attention Score (AAS), Twitter, and Facebook mentions were obtained for each article. Citation counts were extracted using two citation metrics: Google Scholar (GS) and Sc. Correlations between the AAS, the number of social media mentions, and citations were analysed using Spearman's rank order correlation coefficient. A multivariable Poisson log-linear regression analysis shows that papers mentioned on social media gain about 35% more citations in GS and 31% more citations in Sc. The academic citations per article on GS and Sc were positively correlated with the AAS. Our data suggest an increasing positive correlation between social media mentions and article citations over the years.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"612-620"},"PeriodicalIF":1.3,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142134589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juan Domingo Saavedra Felipe DDS, Virginia Andrea Watson Molina DDS, MSc, Anabell Bologna Escalona DDS, CDT, Rafael Laplana Martínez DDS, Aitzol Areso DDS, MSc, Venkateshbabu Nagendrababu BDS, MDS, FDS RCPS (Glasg), PhD, Francesc Abella Sans DDS, PhD
{"title":"Successful retreatment of a maxillary central incisor with a wide-open apex using MTA to fill the entire canal: 24-year follow-up","authors":"Juan Domingo Saavedra Felipe DDS, Virginia Andrea Watson Molina DDS, MSc, Anabell Bologna Escalona DDS, CDT, Rafael Laplana Martínez DDS, Aitzol Areso DDS, MSc, Venkateshbabu Nagendrababu BDS, MDS, FDS RCPS (Glasg), PhD, Francesc Abella Sans DDS, PhD","doi":"10.1111/aej.12885","DOIUrl":"10.1111/aej.12885","url":null,"abstract":"<p>Managing teeth with open apices can be a challenging scenario for clinicians. This case report describes the 24-year follow-up of a maxillary central incisor that failed to develop after a traumatic injury resulting in a wide-open apex. A 10-year-old girl presented complaining of discomfort in her upper teeth. Tooth #9 had received a traumatic blow several years before and was discoloured with a resin composite restoration on the mesio-incisal edge. The tooth was painful to percussion and palpation. An inadequate root canal filling and incomplete root formation were observed on the initial periapical radiograph. Root canal retreatment was initiated, and the canal filled entirely with mineral trioxide aggregate (MTA) because of the extremely wide canal and open apex. The patient was asymptomatic at the 24-year follow-up with the cone beam computed tomography and periapical radiographs demonstrating the stability of the MTA.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"700-708"},"PeriodicalIF":1.3,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11636065/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142115211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lucas Moreira Maia DDS, MSc, PhD, Gil Moreira Júnior DDS, MSc, PhD, Nelson Renato França Alves Silva DDS, MSc, PhD, Vinícius de Carvalho Machado DDS, Larissa Fassarela Marquiore DDS, Emmanuel João Nogueira Leal Silva DDS, MSc, PhD, Antônio Paulino Ribeiro Sobrinho DDS, MSc, PhD, Warley Luciano Fonseca Tavares DDS, MSc, PhD
{"title":"Minimally invasive guided endodontic microsurgery with Zekrya bur: A 48-month follow-up case report","authors":"Lucas Moreira Maia DDS, MSc, PhD, Gil Moreira Júnior DDS, MSc, PhD, Nelson Renato França Alves Silva DDS, MSc, PhD, Vinícius de Carvalho Machado DDS, Larissa Fassarela Marquiore DDS, Emmanuel João Nogueira Leal Silva DDS, MSc, PhD, Antônio Paulino Ribeiro Sobrinho DDS, MSc, PhD, Warley Luciano Fonseca Tavares DDS, MSc, PhD","doi":"10.1111/aej.12884","DOIUrl":"10.1111/aej.12884","url":null,"abstract":"<p>Endodontic microsurgery guided by navigation systems represents a precise and minimally invasive approach for retreatment of apical periodontitis following failed conventional endodontic therapy. Accurate localization and minimal access to the root apex are paramount for successful outcomes and preservation of anatomical structures. Workflow considerations, such as three-dimensional (3D) virtual planning and endodontic guidance represent new crucial aspects for addressing complex cases. This clinical case report presents the successful reintervention of a complex case using a Zekrya bur, operative microscopy, cone beam computed tomography and biocompatible materials. After a 48-month follow-up, complete healing of the treated area was observed. This minimally invasive technique, employing a simple instrument widely available globally, underscores the potential for efficient and predictable outcomes in complex endodontic microsurgical retreatment.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"687-692"},"PeriodicalIF":1.3,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142005938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Antibiofilm effect of different concentrations of silver nanoparticles combined with calcium hydroxide against Enterococcus faecalis biofilm: An ex vivo study","authors":"Sumaya Basudan BDS, MSc, SBE, Alanoud Alqahtani BDS, SBE, Fatemah Alrwais BDS, Reem Almeaither BDS, SBE, Sayed Auda PhD, Hanan A. Balto BDS, MSc","doi":"10.1111/aej.12882","DOIUrl":"10.1111/aej.12882","url":null,"abstract":"<p>This study aimed to evaluate the antibiofilm activity of different concentrations of silver nanoparticles (AgNPs) in combination with calcium hydroxide [Ca(OH)<sub>2</sub>] against <i>Enterococcus faecalis</i> biofilm. On an <i>E. faecalis</i> biofilm on dentin discs, the following medicaments were applied for 7 days (<i>n</i> = 13/group): 0.005% AgNPs+Ca(OH)<sub>2</sub>, 0.01% AgNPs+Ca(OH)<sub>2</sub>, 0.02% AgNPs + Ca(OH)<sub>2</sub>, Ca(OH)<sub>2</sub> and saline/control. Specimens were stained with LIVE/DEAD® <i>Bac</i>Light™ dye and analysed with confocal laser scanning microscopy. Proportion of dead bacteria was calculated and analysed. There was a significant reduction in <i>E. faecalis</i> biofilm in all medicament groups (43.5%, 49.1%, 69.1%, 48.7%) respectively, compared with control group (2.54%) (<i>p</i> < 0.001). The 0.02% AgNPs + Ca(OH)<sub>2</sub> group demonstrated the most significantly superior antibiofilm effect, with no significant difference between remaining groups. In conclusion, combining 0.02% AgNPs enhanced the antibiofilm effect of Ca(OH)<sub>2</sub> on <i>E. faecalis</i> biofilm compared with lower AgNPs concentrations.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"604-611"},"PeriodicalIF":1.3,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141977338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sukainah A. Aldawood BDS, Omar Omar BDS, PhD, Dana Almohazey BSc, MSc, PhD, Amre R. Atmeh BDS, MSc(Endodontics), PhD
{"title":"Reliability of sealer penetration measurement methods and assessment of dentine penetrability after endodontic retreatment: A correlation in vitro study","authors":"Sukainah A. Aldawood BDS, Omar Omar BDS, PhD, Dana Almohazey BSc, MSc, PhD, Amre R. Atmeh BDS, MSc(Endodontics), PhD","doi":"10.1111/aej.12881","DOIUrl":"10.1111/aej.12881","url":null,"abstract":"<p>This study evaluated the reliability of sealer penetration measurement methods used with confocal laser scanning microscopy in correlation with the percentage of residual root filling and examined the effect of residual root-filling material on dentine penetrability after retreatment. Extracted teeth were randomly divided into different groups according to the obturation sealer used (<i>n</i> = 6); BioRoot RCS; MTA Fillapex; Bio-C and AH Plus. Root-filling material was removed before the secondary chemo-mechanical preparation and obturation using fluorescein labelled AH Plus. Multiple micro-computed tomography scans were obtained followed by confocal laser scanning microscopy to measure the penetration of the labelled sealer into the dentinal tubules using four different methods. Measuring sealer penetration into radicular dentine using the penetration percentage method was found to be the most reliable. Dentine penetrability during retreatment did not seem to be affected by the type of residual root-filling material.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"595-603"},"PeriodicalIF":1.3,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141891115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"APEC News July 2024: Ongoing process for organisation of APEC2025 Dhaka","authors":"Hyeon-Cheol Kim DDS, PhD","doi":"10.1111/aej.12879","DOIUrl":"10.1111/aej.12879","url":null,"abstract":"","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 2","pages":"188-190"},"PeriodicalIF":1.3,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141774216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Taher Al Omari, Amre R. Atmeh, Fahda N. Algahtani, Alaa Dkmak, Rami Haitham Issa Albanna, Abedelmalek Tabnjh
{"title":"The effect of irrigation solution temperature and novel heat-treated rotary files on apical debris extrusion and canal preparation time","authors":"Taher Al Omari, Amre R. Atmeh, Fahda N. Algahtani, Alaa Dkmak, Rami Haitham Issa Albanna, Abedelmalek Tabnjh","doi":"10.1111/aej.12878","DOIUrl":"10.1111/aej.12878","url":null,"abstract":"<p>This study aimed to compare apical debris extrusion and canal preparation time with ProTaper Gold (PTG) and ProTaper Ultimate (PTU) files at different temperatures. Mesio-buccal roots of 60 mandibular first molars were distributed into six groups depending on the file type (PTG, PTU) and irrigation solution temperature (20, 37, 45°C). During instrumentation, extruded debris were collected and weighed to measure the mass in milligrams. The canal preparation time was recorded in seconds. ANOVA followed by Bonferroni post-hoc tests were used for analysis. The amount of debris extrusion was significantly higher in PTU, which was affected by the irrigation solution temperature (<i>p</i> < 0.05). The difference in canal preparation time was not significant between the two file systems, however, it was significant between the different temperatures (<i>p</i> = 0.001). Both file systems had shorter canal preparation times at 20°C. The irrigation solution temperature could influence the debris extrusion and time of canal preparation.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"587-594"},"PeriodicalIF":1.3,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141636003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daniela Auerbach DDS, Ibrahim Alaugaily BDS, Scott Davis BS, Adham A. Azim BDS
{"title":"A promising approach utilising photothermal energy to disinfect the root canal system: An in vitro investigation","authors":"Daniela Auerbach DDS, Ibrahim Alaugaily BDS, Scott Davis BS, Adham A. Azim BDS","doi":"10.1111/aej.12872","DOIUrl":"10.1111/aej.12872","url":null,"abstract":"<p>This study aimed to assess root canal disinfection through various irrigation protocols, including a novel photothermal system called ‘LEAP’. Mandibular premolars were infected with Enterococcus faecalis and divided into five groups for different treatments: Group 1: standard needle irrigation; Group 2: passive ultrasonic irrigation; Group 3: GentleWave; Group 4: LEAP; and Group 5: Group 1 + Group 4. Microbial counts were measured before (S1) and after disinfection (S2) using colony-forming units (CFU) and confocal laser scanning microscopy (CLSM). Results revealed a significant reduction in bacterial counts for all groups (<i>p</i> < 0.05). While the percentage of dead bacteria near the canal wall (0–50 μm) did not differ significantly, at 50–150 μm, LEAP and SNI + LEAP exhibited significantly higher bacterial reduction than other groups (<i>p</i> < 0.05). The findings indicate that LEAP is comparable to existing irrigation devices in the main root canal and notably superior in tubular disinfection.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"571-579"},"PeriodicalIF":1.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141592172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}