Clarissa Wong Qi Wen BDS, Nurhanani Mat Saei BDS, Elaheh Ahanin BSc, MBA, PhD Scholar, Fabricio B. Teixeira DDS, MS, PhD, Abhishek Parolia BDS, MDS, FDSRCPS (Glasgow), FDSRCS (Edinburgh), PhD
{"title":"Evaluation of quality of root canal therapy performed by predoctoral students on endodontic outcome and quality of life of patients","authors":"Clarissa Wong Qi Wen BDS, Nurhanani Mat Saei BDS, Elaheh Ahanin BSc, MBA, PhD Scholar, Fabricio B. Teixeira DDS, MS, PhD, Abhishek Parolia BDS, MDS, FDSRCPS (Glasgow), FDSRCS (Edinburgh), PhD","doi":"10.1111/aej.12863","DOIUrl":"10.1111/aej.12863","url":null,"abstract":"<p>This study evaluated the technical quality (TQ) of root canal therapy (RCT) performed by predoctoral students and its impact on endodontic outcome (EO) and patients' quality of life (QoL). The TQ of RCT done by predoctoral students was evaluated and follow-up visits were conducted to determine the clinical, radiographic outcome of RCT and patients' QoL. Frequency distribution, multiple regression, independent-samples <i>t</i> test and one-way <span>anova</span> were performed. A total of 226 teeth of 164 patients were clinically and radiographically examined. A satisfactory TQ was observed in 130 (57.5%), successful clinical outcomes in 155 (68.6%), successful radiographical outcomes in 206 (91%) and overall successful EO in 150 teeth (66.4%) with 80% of patients reporting a favourable QoL. A significant positive correlation was noted between EO and QoL (<i>p</i> = 0.002) with no significant correlation in between TQ-RCT and EO (<i>p</i> = 0.07) and TQ-RCT and QoL (<i>p</i> = 0.316). Successful EO had a positive impact on patients' QoL.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"525-537"},"PeriodicalIF":1.3,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141297380","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":"The various forms of tooth resorption","authors":"Jordan Samuel Blum BSc, BBiomed (Hons)","doi":"10.1111/aej.12857","DOIUrl":"10.1111/aej.12857","url":null,"abstract":"<p>Tooth resorption refers to the loss of the organic and inorganic components of tooth structure by clastic cells. The complex and multifaceted nature of its aetiology, along with the several classification schemes published in the area, are likely to create confusion amongst researchers and clinicians, and may lead to compromised treatment decisions. Therefore, this paper will categorise and address tooth resorption based on aetiology in order to help clinicians diagnose and filter treatment options based on the pathophysiology of the resorption at hand. With recent advancements in the literature, the purpose of this paper is to provide clinicians with a current, clinically relevant summary of the various forms of tooth resorption, with a focus on aetiologically driven treatment strategies and suggestions that facilitate their recognition, diagnosis and management.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 2","pages":"191-201"},"PeriodicalIF":1.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/aej.12857","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141156012","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}
Ana B. S. Lopes DDS, MSc, Augusto R. Lima DDS, MSc, PhD, Juliana D. Bronzato DDS, PhD, Daniel R. Herrera DDS, MSc, PhD, Priscila A. Francisco DDS, MSc, PhD, Maria C. C. Carvalho DDS, MSc, PhD, Gabriel Abuna DDS, MSc, PhD, Mario Sinhoreti DDS, MSc, PhD, Brenda P. F. A. Gomes DDS, MSc, PhD
{"title":"Influence of different presentation forms of chlorhexidine on contaminated root canals during agitation","authors":"Ana B. S. Lopes DDS, MSc, Augusto R. Lima DDS, MSc, PhD, Juliana D. Bronzato DDS, PhD, Daniel R. Herrera DDS, MSc, PhD, Priscila A. Francisco DDS, MSc, PhD, Maria C. C. Carvalho DDS, MSc, PhD, Gabriel Abuna DDS, MSc, PhD, Mario Sinhoreti DDS, MSc, PhD, Brenda P. F. A. Gomes DDS, MSc, PhD","doi":"10.1111/aej.12862","DOIUrl":"10.1111/aej.12862","url":null,"abstract":"<p>This in vitro study aimed to verify the influence of chlorhexidine (CHX) (gel and solution) in association with different activation protocols on disinfection of root canals contaminated with <i>Enterococcus faecalis</i>. In total, 120 lower premolar roots were selected, contaminated and divided into 12 groups according to irrigation technique and substance. Samples were collected before and after each irrigation technique and analysed for colony-forming units (CFU). Three dentin discs were obtained for quantification of viable intratubular cells by using confocal laser scanning microscopy (CLSM). CFU results showed that sonic and ultrasonic were more effective than conventional irrigation. Ultrasonic activation was more effective than sonic for CHX gel (<i>p</i> < 0.05). CLSM showed that either activation was better than conventional in all groups and root canal thirds (<i>p</i> < 0.05). It was concluded that ultrasonic/sonic activation was more effective than conventional techniques and CHX enhanced intratubular dentin decontamination across all irrigation methods.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"513-524"},"PeriodicalIF":1.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141158947","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":"Mental foramen and apical foramen: A dangerous anatomical proximity","authors":"Deniz Yanık, Ahmet Mert Nalbantoğlu","doi":"10.1111/aej.12852","DOIUrl":"10.1111/aej.12852","url":null,"abstract":"<p>The study evaluated the spatial position of the mental foramen (MF) using 300 cone-beam computed tomography. The spatial position was analyzed with the horizontal location and relative location (distance between apical foramen and MF). The horizontal location was assessed through three positions (positions 1, 2, and 3). The relative location was determined with the x, y, and x coordinates of the root apex of mandibular premolars and the MF. Student's <i>t</i>-test and chi-square were performed. The most common horizontal location (52%) was position 2, which means between the premolars (<i>p</i> < 0.05). The relative location of the MF to the root apex of the second premolar was closer than the first premolar (<i>p</i> < 0.05). The distance between the root tip of the second premolar and the MF was 5.27 mm, with a minimum value of 1.87 mm. Clinicians should be aware of the possible neural results to the mental nerve of an endodontic infection and the extrusion of irrigation solutions.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 2","pages":"352-358"},"PeriodicalIF":1.3,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141077291","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}
Amanda Zambaldi Marim DDS, MSc, Carlos Eduardo da Silveira Bueno DDS, MSc, PhD, Carolina Pessoa Stringheta DDS, MSc, PhD, Rina Andrea Pelegrine DDS, MSc, PhD, Alexandre Sigrist De Martin DDS, MSc, PhD, Daniel Guimarães Pedro Rocha DDS, MSc, PhD, Wayne Martins Nascimento DDS, MSc, Ana Grasiela Limoeiro DDS, MSc, PhD, Carlos Eduardo Fontana DDS, MSc, PhD
{"title":"In vitro study of structural and chemical changes in two reciprocating files after multiple reuses and sterilisation","authors":"Amanda Zambaldi Marim DDS, MSc, Carlos Eduardo da Silveira Bueno DDS, MSc, PhD, Carolina Pessoa Stringheta DDS, MSc, PhD, Rina Andrea Pelegrine DDS, MSc, PhD, Alexandre Sigrist De Martin DDS, MSc, PhD, Daniel Guimarães Pedro Rocha DDS, MSc, PhD, Wayne Martins Nascimento DDS, MSc, Ana Grasiela Limoeiro DDS, MSc, PhD, Carlos Eduardo Fontana DDS, MSc, PhD","doi":"10.1111/aej.12861","DOIUrl":"10.1111/aej.12861","url":null,"abstract":"<p>To use scanning electron microscopy and energy dispersive X-ray spectroscopy to evaluate the metallurgical-chemical changes of WaveOne Gold (WOG) and R-Motion (RM), after multiple uses. The instruments were divided into groups (<i>n</i> = 8): WOG and RM—control groups, new instruments; WOG1 and RM1; WOG2 and RM2; WOG3 and RM3 after instrumentation of 1, 2 or 3 molars, respectively. Burrs occurred mainly in the control group and after the first use. The RM files were found to have a higher nickel content, which increased during reuse, and a decrease in oxygen content with increasing reuse, in addition to calcium impregnation, which occurred in greater amounts in the corrosion areas in the WOG files. The presence of topographic and chemical changes was demonstrated, indicating that caution should be taken when reusing endodontic instruments to avoid fractures.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"502-512"},"PeriodicalIF":1.3,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141077289","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}
Daiasharailang Lyngdoh MDS, Sharique Alam MDS, Huma Iftekhar MDS, Surendra Kumar Mishra MDS
{"title":"Evaluation of canal patency and cleanliness following retreatment of bioceramic sealer-obturated root canals using three different irrigant activation protocols","authors":"Daiasharailang Lyngdoh MDS, Sharique Alam MDS, Huma Iftekhar MDS, Surendra Kumar Mishra MDS","doi":"10.1111/aej.12855","DOIUrl":"10.1111/aej.12855","url":null,"abstract":"<p>This study evaluated the effectiveness of three different irrigant activation techniques in cleaning and establishing patency during retreatment of root canals obturated with gutta-percha and bioceramic sealer. 60 extracted premolars with oval-shaped canals were instrumented and obturated with gutta-percha and EndosequenceBC sealer using the ‘warm hydraulic condensation’ technique. The teeth were retreated using Protaper Universal Retreatment and XP-Endo Shaper system and divided into four groups according to the irrigant activation protocol used: control, passive ultrasonic irrigation (PUI), Endovac irrigation (EVI) and XP-Endo Finisher R (XPFR). Apical patency was achieved in all the samples of the XPFR group (100%), which showed a significantly higher success rate compared with the control (73.3%) and EVI groups (73.3%) (<i>p</i> < 0.05). The scanning electron microscopic evaluation revealed significantly cleaner middle and apical third root canals in the PUI and XPFR groups compared with the control group (<i>p</i> < 0.05). These findings suggest that XPFR effectively cleans and establishes patency in root canals filled with bioceramic sealers.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"475-485"},"PeriodicalIF":1.3,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140922713","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}
Roberta Salles de Bastos DDS, Thamires Vidal da Silva DDS, Victor Talarico Leal Vieira DDS, MSc, PhD, Emmanuel João Nogueira Leal Silva DDS, MSc, PhD
{"title":"Evaluation of mechanical properties of an original and a replica-like reciprocating instruments","authors":"Roberta Salles de Bastos DDS, Thamires Vidal da Silva DDS, Victor Talarico Leal Vieira DDS, MSc, PhD, Emmanuel João Nogueira Leal Silva DDS, MSc, PhD","doi":"10.1111/aej.12854","DOIUrl":"10.1111/aej.12854","url":null,"abstract":"<p>This study assessed the mechanical properties of the Only One File Blue and the Reciproc Blue instruments. A total of 80 new 25 mm reciprocating NiTi instruments (25/.08v) were evaluated for their mechanical performance (<i>n</i> = 40 per group). Cyclic fatigue resistance, torsional fatigue, flexural resistance and buckling resistance tests were conducted. Statistical analysis was employed with a significance level set at 5%. The results indicated no statistically significant differences in resistance to cyclic fatigue neither in the fragment length between the instruments (<i>p</i> > 0.05). However, the Reciproc Blue instrument exhibited greater torque to fracture and a larger rotation angle than the Only One File Blue instrument (<i>p</i> < 0.05). The Only One File Blue instrument demonstrated higher flexibility but lower resistance to buckling compared to the Reciproc Blue instrument (<i>p</i> < 0.05). In conclusion, the tested instruments exhibit differences in mechanical properties, with the Reciproc Blue instrument generally presenting greater advantages than the Only One File Blue.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"486-492"},"PeriodicalIF":1.3,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140923414","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}
Cleonice da Silveira Teixeira DDS, MSc, PhD, Filipe Colombo Vitali DDS, MSc, PhD, Eduardo Antunes Bortoluzzi DDS, MSc, PhD, Lucas da Fonseca Roberti Garcia DDS, MSc, PhD
{"title":"Longer light-curing time decreases the effect of ageing on composite resin hardness used in root reinforcement","authors":"Cleonice da Silveira Teixeira DDS, MSc, PhD, Filipe Colombo Vitali DDS, MSc, PhD, Eduardo Antunes Bortoluzzi DDS, MSc, PhD, Lucas da Fonseca Roberti Garcia DDS, MSc, PhD","doi":"10.1111/aej.12856","DOIUrl":"10.1111/aej.12856","url":null,"abstract":"<p>This study evaluated the hardness of a composite resin used for root reinforcement, considering the light-curing time, root canal region and ageing due to long-term storage. Twenty incisor roots were reinforced using composite resin, varying the photopolymerisation time (40 or 120 s). Following fibre post cementation, the roots were transversely sectioned into coronal, middle and apical regions. Composite hardness was measured initially and after 18 months of water storage. Data underwent repeated measures analysis of variance and Tukey's post hoc tests. The factors ‘light-curing time’, ‘root region’ and ‘ageing’ affected the hardness. Significant interactions were observed between ‘light-curing time × root region’ and ‘ageing × light-curing time’. Regardless of time, resin hardness in the apical region was lower. After ageing, hardness in the coronal and middle regions decreased when the light-curing time was 40 s, while no significant effect on hardness was noted with a light-curing time of 120 s.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"493-501"},"PeriodicalIF":1.3,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140923420","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}
Ana Flávia Almeida Barbosa DDS, MSc, PhD, Emmanuel João Nogueira Leal Silva DDS, MSc, PhD, Marco Aurélio Versiani DDS, MSc, PhD, Carolina Oliveira Lima DDS, MSc, PhD, Letícia de Almeida Pereira Reis Oliveira DDS, Graziela dos Santos Massa DDS, MSc, Thayná Cristine da Silva Eustáquio DDS, MSc, Ricardo Tadeu Lopes PhD, Luciana Moura Sassone DDS, MSc, PhD
{"title":"Effects of increasing instrument size and taper on the disinfection and shaping of mandibular incisors","authors":"Ana Flávia Almeida Barbosa DDS, MSc, PhD, Emmanuel João Nogueira Leal Silva DDS, MSc, PhD, Marco Aurélio Versiani DDS, MSc, PhD, Carolina Oliveira Lima DDS, MSc, PhD, Letícia de Almeida Pereira Reis Oliveira DDS, Graziela dos Santos Massa DDS, MSc, Thayná Cristine da Silva Eustáquio DDS, MSc, Ricardo Tadeu Lopes PhD, Luciana Moura Sassone DDS, MSc, PhD","doi":"10.1111/aej.12851","DOIUrl":"10.1111/aej.12851","url":null,"abstract":"<p>This study assessed canal preparation effects on disinfection and dentin preservation. Thirty mandibular incisors were paired into two experimental groups (<i>n</i> = 10). Following contamination, the initial microbial sample was collected. Instruments 30/0.03 (Group 1) and 30/0.05 (Group 2) were employed and a second sample was obtained. Canals were enlarged using instruments 40/0.03 and 40/0.05, respectively, and a third sample was collected. Final irrigation was performed, and sample S4 obtained. A final scan evaluated volume, surface area, unprepared areas, removed dentin and dentin thickness. Data were analysed using Student <i>t</i>-test, Mann–Whitney, Kruskal–Wallis and Dunn tests. A significant difference was observed between S1 and other time points (<i>p</i> < 0.05). Comparison between groups showed no differences in bacterial loads and in the percentage of microbial reduction (<i>p</i> > 0.05). Group 2 exhibited greater reduction in dentin thickness than group 1 in the mesial aspect of the root (<i>p</i> < 0.05). Instrument 30/0.03 might provide effective disinfection and safety during mandibular incisors canal preparation.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 2","pages":"341-351"},"PeriodicalIF":1.3,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140877985","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}
Maximiliano Casa-Herzmann, Horacio Álvarez, Nicole Soto-Valencia, Emmanuel J. N. L. Silva
{"title":"Pre-eruptive intracoronal resorption: A report of two cases treated with Biodentine in mandibular premolars","authors":"Maximiliano Casa-Herzmann, Horacio Álvarez, Nicole Soto-Valencia, Emmanuel J. N. L. Silva","doi":"10.1111/aej.12853","DOIUrl":"10.1111/aej.12853","url":null,"abstract":"<p>Pre-eruptive intracoronal resorption is a rare dental anomaly marked by a radiolucent area within an unerupted tooth. This report discusses the clinical management of pre-eruptive intracoronal resorption in two mandibular premolars through vital pulp therapy using Biodentine as a sealant. Emphasising the significance of timely intervention for preserving pulp vitality and the tooth's integrity, the present case report underscores the necessity of vigilant clinical and radiographic monitoring for early detection and appropriate treatment. By presenting effective strategies for managing pre-eruptive intracoronal resorption, the report contributes to the understanding of this condition and highlights the importance of proactive measures in preserving affected teeth and ensuring favourable long-term outcomes.</p>","PeriodicalId":55581,"journal":{"name":"Australian Endodontic Journal","volume":"50 3","pages":"667-673"},"PeriodicalIF":1.3,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140839847","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}