Giornale Italiano di Endodonzia最新文献

{"title":"The impact of kinematics, single-file technique and preparation time on the apical extrusion of debris","authors":"C. Fontana, G. Ferraresso, Letícia Pinheiro Derigi, João Daniel Mendonça de Moura, R. Pelegrine, D. Rocha, C. Bueno, A. S. D. Martin, S. Pinheiro","doi":"10.32067/GIE.2020.34.02.14","DOIUrl":"https://doi.org/10.32067/GIE.2020.34.02.14","url":null,"abstract":"Aim: To compare canal preparation time and apical extrusion of debris during instrumentation with the ProTaper Next (PTN), HyFlex CM (HCM), HyFlex EDM (HEDM), WaveOne Gold (WOG), and Reciproc Blue (RCB) systems. \u0000Methodology: Seventy-five roots of extracted mandibular first molars, with curved mesiobuccal canals (10–20°) and independent foramina, were distributed across 5 experimental groups (n=15 each) according to the instrumentation system used. Roots were secured in Eppendorf tubes, the canals were irrigated with double-distilled water, and the instrumentation time was recorded. After instrumentation, the roots were removed from the Eppendorf tubes and the amount of extruded debris was calculated by subtracting the initial weight from the final weight. The assumption of normality was rejected by the Shapiro–Wilk test, followed by the Kruskal–Wallis test with a post-hoc Dunn’s test. A simple linear regression analysis was run to test for correlation between amount of extruded debris and time required for instrumentation. \u0000Results:  The PTN and HCM systems were associated with significantly (p HEDM, WOG, RCB).  There was no significant difference between the PTN and HCM groups (p> 0.05), nor between the HEDM, WOG, and RCB groups (p> 0.05). Simple linear regression demonstrated a positive correlation (r = 0.74, p < 0.05) between the amount of debris extruded and instrumentation time. \u0000Conclusions: The RCB, WOG, and HEDM systems were associated with less debris extrusion and shorter instrumentation time when compared to the PTN and HCM systems.","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":"34 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77323831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the root canal tridimensional filling with warm vertical condensation, carrier-based technique and single cone with bioceramic sealer: a micro-CT study","authors":"Edoardo Moccia, Giorgia Carpegna, Alessandro Dell'Acqua, M. Alovisi, A. Comba, D. Pasqualini, E. Berutti","doi":"10.32067/GIE.2020.34.01.07","DOIUrl":"https://doi.org/10.32067/GIE.2020.34.01.07","url":null,"abstract":"Aim: To compare the quality of the tridimensional (3D) filling and the presence of radiographic translucencies after root canal obturation with three different techniques: warm vertical condensation, carrier-based and single cone with bioceramic sealer. \u0000Methodology: Thirty single-rooted human teeth extracted for periodontal reasons were selected. Glide path was performed with ProGlider and shaping with ProTaper Next (PTN) X1, X2 and X3 up to working length (WL). The specimens were randomly divided into three groups (N=10) for the final 3D filling step: Buchanan’s continuous wave of condensation (Group 1, G1), Thermafil® (Group 2, G2) or TotalFill® BC Points™ combined with  TotalFill® BC Sealer (Group 3, G3). \u0000Micro-CT scans were performed after the obturation step and the slices were 3D reconstructed with standardized parameters. Afterwards, the filled area and the associated radiographic translucencies were computer-isolated, and their volumes were calculated. The statistical analysis was performed using one-way ANOVA and the post-hoc Student-Newmann-Keuls (P<0,05).   \u0000Results: The mean percentage of translucency areas in the warm vertical condensation group was 1,23%, whereas in the carrier-based group was 4,22% and in the single cone with bioceramic sealer group was 10,44%. The differences between the groups were statistically significant (P=0,029). \u0000Conclusion: All the obturation techniques provided an adequate 3D root canal filling. However, the null hypothesis of a superimposable 3D filling quality between groups was refused. The single cone technique with bioceramic sealer represented a viable clinical alternative, although it seemed more operator-dependent than the others. \u0000Key Words: bioceramic sealer, micro-CT, root canal obturation, root canal sealers volumetric distortion","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":"51 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90338961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antibacterial effects of two synthetic peptides against Enterococcus faecalis biofilms: a preliminary in vitro study","authors":"G. Mergoni, M. Manfredi, P. Bertani, Tecla Ciociola, S. Conti, Laura Giovati","doi":"10.32067/GIE.2020.34.01.15","DOIUrl":"https://doi.org/10.32067/GIE.2020.34.01.15","url":null,"abstract":"Aim: Current endodontic techniques are unable to fully eradicate intracanal bacteria. Thus, new agents that effectively eliminate endodontic pathogens are needed. The aim of this study was to assess the antibacterial properties of two synthetic peptides, namely KP and L18R, against planktonic cells and biofilms of the endodontic pathogen Enterococcus faecalis. \u0000Methodology:KP and L18R bactericidal activity against E. faecalisATCC 29212 was evaluated by colony forming unit assays and the half maximal effective concentration (EC50) was calculated. The effect of peptides on E. faecalis biofilm formation onto polystyrene plates was also assessed by the crystal violet assay. Confocal laser scanning microscopy (CLSM) analysis was carried out to compare the effects of KP, L18R, and a Ca(OH)2saturated solution in an in vitro model of dental infection consisting in 2-day-old E. faecalisbiofilms grown on hydroxyapatite disks. \u0000Results: Both KP and L18R showed strong bactericidal activity against planktonic E. faecalis. L18R proved to be 10-folds more effective than KP (KP and L18R EC50values = 4.520 × 10‑6 Mand 3.624 × 10-7 M, respectively). Peptides inhibited E. faecalis biofilm formation in a dose-dependent manner and L18R resulted more effective than KP.CLSM images showed that Ca(OH)2, KP and L18R remarkably impaired E. faecalis biofilms pre-grown on hydroxyapatite. \u0000Conclusions: KP and L18R effectively inhibited E. faecalis, both in planktonic and biofilm form. L18R demonstrated a more potent antibacterial activity than KP. These preliminary results suggest that antimicrobial peptides may represent a promising new strategy for endodontic infection control.","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":"20 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89039367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sonic vs Ultrasonic activation of sodium hypoclorite for root canal treatments. In vitro assessment of debris removal from main and lateral canals","authors":"D. D. Nardo, G. Gambarini, G. Miccoli, S. Carlo, Giulia Iannarilli, Greta Lauria, M. Seracchiani, T. Khrenova, M. Bossù, L. Testarelli","doi":"10.32067/GIE.2020.34.01.12","DOIUrl":"https://doi.org/10.32067/GIE.2020.34.01.12","url":null,"abstract":"Aim: Aim of this study is to evaluate the efficacy of two different sonic and ultrasonic devices in the elimination of debris from artificial main and accessory canals. \u0000Methodology: Two different irrigant activator devices were tested: the sonic handpiece EndoActivator (Dentsply Maillefer, Baillagues, Switzerland) and the ultrasonic handpiece Ultra X (Eighteeth, Changzhou Sifary Medical Technology Co., Ltd, Changzhou City, China). 18 artificial root canals were tested for each group: canals and lateral canals were embedded in a transparent resin model. Canals were filled with organic paste to simulate the organic pulp tissues. With both devices, irrigation was performed using 5% sodium hypoclorite and two activation times of 30 seconds each. Sodium hypochlorite was replaced every 30 seconds. After a photographic exam, debris removal was evaluated by a software and assessed in terms of percentage of cleaned canal. Means and standard deviations were calculated and data were statistically analyzed with the Anova test. \u0000Results: Under the same experimental conditions (same canal, time and irrigant), both sonic and ultrasonic devices completely cleaned the main canal. On the contrary, a statistically significant difference was noted in the debridement of lateral canals, with ultrasonic device removing more debris than the sonic one (p<0,05). No tested device was able to remove all debris from accessory canals. \u0000Conclusions: The cordless ultrasonic handpiece Ultra X used with maximum power showed significantly greater efficacy in cleaning accessory canals when compared to the sonic EndoActivator.","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83208245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regenerative endodontic treatment options for immature permanent teeth: a case report with 21-month follow-up","authors":"M. Leite, C. Ferreira, F. D. A. Gomes, F. G. Pappen, T. Tedesco, A. Calvo, J. Imparato","doi":"10.32067/GIE.2020.34.01.05","DOIUrl":"https://doi.org/10.32067/GIE.2020.34.01.05","url":null,"abstract":"The treatment of choice for necrotic teeth with incompletely formed roots is apexification with calcium hydroxide, which induces the formation of a hard tissue barrier at the apex, however, in the long term, this medicament may increase the brittleness of dentin walls because of its hygroscopic and proteolytic properties, in addition to the disadvantage of requiring multiple appointments. A treatment option for young permanent teeth with necrotic pulps is pulp regeneration, whose advantage lies in the stimulation of new tissue formation within the root canal. Pulp revascularization is based on the disinfection of the root canal system, often performed with irrigating solutions and intracanal medicaments, accompanied by induction of periapical bleeding and formation of a blood clot that will fill the root canal. The aim of this study was to present a case of avulsion of teeth 11 and 21, both with open apices, treated with replantation associated with regenerative endodontic therapy, but varying the intracanal medicaments used: calcium hydroxide in tooth 11 and double antibiotic paste in tooth 21. Pulp revascularization proved to be effective with both intracanal medicaments used, promoting symptom resolution and complete root development, including apical closure, even in the absence of a well-defined clinical","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":"74 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82720467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of dynamic navigation for a minimal invasive finding of root canals: a technical note","authors":"C. Pirani, A. Spinelli, C. Marchetti, M. Gandolfi, F. Zamparini, C. Prati, G. Pellegrino","doi":"10.32067/GIE.2020.34.01.02","DOIUrl":"https://doi.org/10.32067/GIE.2020.34.01.02","url":null,"abstract":"Aim: the aim of this technical note was to evaluate the potential application of dynamic navigation for a minimally invasive finding of the root canal.  \u0000Methodology: extracted human teeth were fixed into a prefabricated phantom model in place of the correspondent teeth and pre-operatively scanned with the marker plate containing the fiducial markers with a cone beam computed tomography, imported on the ImplaNav software (ImplaNav, BresMedical, Sydney, Australia) and  obtaining a 3D reconstruction. Open access cavity was performed with a diamond bur in using real-time navigation. This procedure was aimed to directly identify the pulp horns and the root canal entrances with a unique hole for each canal. \u0000Results: all access cavities were prepared according to a minimally invasive endodontics approach with the dynamically guided ImplaNav software. No perforations occurred and all the canals were successfully located.  \u0000Conclusions: our results demonstrated a possible application of this technology in minimal finding of root canals. This protocol may have potentialities in teaching dental students to start their approach in endodontic field.","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":"17 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80677648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Covid-19 and prevention in Endodontics","authors":"S. Rengo","doi":"10.32067/GIE.2020.34.01.13","DOIUrl":"https://doi.org/10.32067/GIE.2020.34.01.13","url":null,"abstract":"In the present issue we collected the most interesting and recent themes focused on the macro-topic of prevention and treatment of infections. The editorial choice is focused on the SIE (Italian Society of Endodontics) position statement about asepsis that suggests the main guidelines that should be adopted during the different phases of endodontic treatments, aiming at minimizing the risk of contamination of the root canal system. \u0000The discussed topic is strongly influenced by the event that, dramatically, is affecting our private practice, social as well as relational life. Indeed, in the last months of 2019, the Severe acute respiratory syndrome (SARS-CoV2), better known as COVID-19, had been developed first in China then worldwide. This syndrome, characterized by a high infection and lack of resolved treatments, had been defined as “pandemic” on March 11th, 2020 by World Health Organization (WHO), becoming the second pandemic of this century.","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":"29 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85713780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Root canal morphology of lower lateral incisors: a CBCT in vivo study","authors":"Linda Quero, G. Schianchi, F. Obino, M. Galli, L. Testarelli, G. Gambarini","doi":"10.32067/GIE.2020.34.01.14","DOIUrl":"https://doi.org/10.32067/GIE.2020.34.01.14","url":null,"abstract":"Aim: The aim of this study was to analyze the root canal configuration in mandibular central and lateral incisors in vivo using cone-beam computed tomography (CBCT) imaging in an European population. \u0000Methodology: A total of 500 mandibular lateral incisors from 250 patients were examined using CBCT imaging, previously taken for  diagnosis and treatment. The number of roots, root canal system configuration, presence of apical confluences, distance between confluences and radiographic root end, symmetry between left and right elements were recorded and statistically analyzed. \u0000Results: All the examinated teeth presented only one root. \u0000Conclusions: The percentage of Vertucci type II configuration was higher than expected, being more frequent than type II. Other configurations were present but rare.","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":"320 ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72434298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Treatment of obliterated root canals using various guided endodontic techniques: a case series","authors":"Antonietta Bordone, Cauris Cauvrechel","doi":"10.32067/GIE.2020.34.01.06","DOIUrl":"https://doi.org/10.32067/GIE.2020.34.01.06","url":null,"abstract":"Objective: This article reports on 4 endodontic treatments of obliterated teeth using a guided endodontic (GE) technique. The aim is to demonstrate the benefits and limits of guided endodontics. \u0000Cases: The 4 patients consulted for endodontic treatment of an obliterated tooth. The teeth did not respond to pulp vitality tests. Retroalveolar X-rays and conebeam (CBCT) revealed the presence of a periapical lesion and of root canal obliteration. Patients’ permission was obtained to perform GE orthograde endodontic treatment. The first case was treated by GE using a closed guide and a metal sleeve. The second presented a more complex situation with the canal obliterated to the apical third of the tooth. Treatment of the third case involved the use of a closed guide without a metal sleeve. The fourth case was done using an open guide technique and the 2ingis system guiding the head of the contra-angle.   \u0000  \u0000Treatment planning and guide manufacture were achieved by means of software programs initially designed for implantologists but which can also be used by endodontists. Root canal patency was restored in all patients. In each of the 4 cases, drilling was done using a small diameter (0.75 mm) cylindrical drill (FFDM Pneumat Tivoly). Once canal patency was restored using a C+ file, classic endodontic treatment could be performed.    \u0000  \u0000Conclusion: GE assists endodontists in the management of complex cases by enabling centered drilling of the canal with no risk of deviating significantly from the virtually planned path. The novel choice of a small-diameter drill (0.75 mm) helps preserve the dental tissues. \u0000  \u0000  \u0000Obiettivo: Questo articolo riporta 4 trattamenti endodontici di denti obliterati con una tecnica di endodonzia guidata (EG) \u0000L’obiettivo e di mettere in evidenza l’interesse e i limiti dell’endodonzia guidata. \u0000Casi: I 4 pazienti si sono presentati in appuntamento per il trattamento endodontico di un dente obliterato. I denti non rispondono ai test di vitalita. Le radiografie periapicali e la cbct mostrano la presenza di una lesione periapicale et di un’obliterazione canalare. Con l’accordo dei pazienti, e stato deciso di realizzare un trattamento endodontico ortogrado con EG. Il primo caso e stato trattato con EG con una dima “chiusa” e una boccola metallica. Il secondo caso e una situazione piu complessa di un canale obliterato fino al terzo apicale del dente. Il trattamento del terzo caso e stato realizzato con una dima “chiusa” senza boccola metallica. Il quarto caso e stato trattato con una tecnica a dima “aperta”. E stato  utilizzato un sistema 2Ingis che guida la testa del contrangolo. \u0000Le pianificazioni e la creazione delle dime sono state realizzate con dei programmi inizialmente dedicati all’implantologia ma che sono trasferibili all’endodonzia. La pervieta canalare e stata trovata in ciascuno dei casi. In ognuno dei casi la foratura e stata realizzata con una fresa cilindrica di piccolo diametro (0.75mm) (FFDM Pneumat Tivoly). Una ","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":"98 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82904018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accuracy, sensitivity and specificity of three imaging modalities in detection of separated intracanal instruments","authors":"Sara Alemam, Shaimaa Abuelsadat, S. Saber, T. Elsewify","doi":"10.32067/GIE.2020.34.01.03","DOIUrl":"https://doi.org/10.32067/GIE.2020.34.01.03","url":null,"abstract":"Aim: To compare the accuracy, sensitivity and specificity of CBCT imaging and two dimensional periapical radiography in detection of separated intracanal endodontic instruments with and without root canal filling. \u0000Methodology:  Eighty (n=80) extracted mandibular molars were randomly divided into four groups (n=20); control, fracture/non-filled, non-fracture/ filled, and fracture/filled.  Molars were placed in a mandible for imaging.  Conventional 2D radiography using D-speed periapical film (SKYDENT, Slovak Republic), semidirect digital radiographs using Soredex Digora Optime system (DIGORAOptime, Soredex, Finland), and cone beam computed tomography using Gendex-GXDP 800 (GENDEX GXDP-800 Kavo, Germany) were acquired.  An artifact reduction algorithm was applied.  Images were evaluated by three blinded examiners (two endodontists and one radiologist).  Qualitative examination for the presence/absence of separated instrument was performed according to a 5-point rank scale (1, definitely absent; 2, probably absent; 3, uncertainty; 4, probably present; and 5, definitely present).  Accuracy, sensitivity and specificity were calculated as well as inter-observer reliability. Statistical analysis was performed and significance level was set at 5%.  \u0000Results: Non-filled groups showed no significant difference between all three tested imaging modalities.  Filled groups showed statistically decreased accuracy and sensitivity of CBCT.  Good inter-observer agreement was shown.  \u0000Conclusion:  Conventional 2D radiography is a good tool for detection of intracanal separated instruments in filled canals.","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":"100 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81004972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}