BERTOLDI, Carlo

CONSOLO, Ugo

GENERALI, Luigi

Pettenati, C.

RIGHI, Elena

Archivio istituzionale della ricerca - Università di Modena e Reggio Emilia

18 September 2017intestazione repositorydell’ateneoComparison on sealer penetration into dentinal tubules using self-adjusting file cleaning- shaping-irrigation system andconventional endodontic needle irrigation / Generali, L.; Pettenati, C.; Righi, E.; Bertoldi, C.; Consolo, U.. - In: MINERVASTOMATOLOGICA. - ISSN 0026-4970. - ELETTRONICO. - 64(2015), pp. 50-51. ((Intervento presentato al convegnoPrevenzione globale, salute orale e alimentazione tenutosi a Milano nel 9,10,11 aprile 2015.OriginalComparison on sealer penetration into dentinal tubules using self-adjusting file cleaning- shaping-irrigation system andconventional endodontic needle irrigationPublisher:PublishedDOI:Terms of use:openAccessPublisher copyright(Article begins on next page)Testo definito dall’ateneo relativo alle clausole di concessione d’usoAvailability:This version is available at: 11380/1066254 since: 2015-04-20T09:09:36ZCollegio dei Docenti di OdontoiatriaThis is the peer reviewd version of the followng article:V O L U M E  6 4  .  S U P P L. 1  .  N. 2  .   A P R I L  2 0 1 5XXII Congresso NazionaleCollegio dei Docenti Universitaridi Discipline OdontostomatologicheMilano, 9-11 aprile 2015This journal is PEER REVIEWED and is quoted in: CAB, EMBASE, Index to Dental Literature, PubMed/MEDLINE, ScopusDirezione, redazione, ufficio grafico, ufficio pubblicità, fotocomposizione, amministrazione - Edizioni Minerva Medica - Corso Bramante 83-85 - 10126 TorinoTel. (011) 67.82.82 - Fax (011) 67.45.02 - E-mail: minervamedica@minervamedica.itWeb Site: www.minervamedica.itStampa - Edizioni Minerva Medica - Tipografia di Saluzzo - Corso IV Novembre 29-31 - 12037 Saluzzo (CN) - Tel. (0175) 249405 - Fax (0175) 249407Italia - Individuale: Online € 110,00, Cartaceo € 115,00, Cartaceo+Online € 120,00; Istituzionale: Cartaceo € 150,00, Online (Small € 282,00, Medium € 325,00, Large € 373,00, Extra Large € 390,00), Cartaceo+Online (Small € 294,00, Medium € 341,00, Large € 388,00, Extra Large € 404,00).Unione Europea - Individuale: Online € 185,00, Cartaceo € 190,00, Cartaceo+Online € 200,00; Istituzionale: Cartaceo € 265,00, Online (Small € 285,00, Medium € 325,00, Large € 373,00, Extra Large € 390,00), Cartaceo+Online (Small € 304,00, Medium € 351,00, Large € 399,00, Extra Large € 414,00).Paesi extraeuropei - Individuale:  Online € 205,00, Cartaceo € 215,00, Cartaceo+Online € 225,00; Istituzionale: Cartaceo € 290,00, Online (Small € 304,00, Medium € 341,00, Large € 393,00, Extra Large € 409,00), Cartaceo+Online (Small € 320,00, Medium € 362,00, Large € 414,00, Extra Large € 430,00).Per il pagamento: 1) Gli abbonati possono utilizzare le seguenti forme di pagamento: a) assegno bancario; b) bonifico bancario a: Edizioni Minerva Medica, INTESA SANPAOLO Agenzia n. 18 Torino. IBAN: IT45 K030 6909 2191 0000 0002 917 c) conto corrente postale 00279109 intestato a Edizioni Minerva Medica, Corso Bramante 83-85, 10126 Torino; d) carte di credito Diners Club International, Master Card, VISA, American Express; 2) i soci devono contattare direttamente la Segreteria della SocietàI cambi di indirizzo di spedizione, e-mail o di qualsiasi altro dato di abbonamento vanno segnalati tempestivamente inviando i nuovi e vecchi dati per posta, fax, e-mail o direttamente sul sito www.minervamedica.it alla sezione “I tuoi abbonamenti - Contatta ufficio abbonamenti”I reclami per i fascicoli mancanti devono pervenire entro 6 mesi dalla data di pubblicazione del fascicoloI prezzi dei fascicoli e delle annate arretrati sono disponibili su richiesta©Edizioni Minerva Medica - Torino 2015Tutti i diritti sono riservati. Nessuna parte di questa pubblicazione può essere riprodotta, trasmessa e memorizzata in qualsiasi forma e con qualsiasi mezzoPubblicazione bimestrale. Autorizzazione del Tribunale di Torino n. 688 del 18-1-1952. Iscrizione nel registro nazionale della stampa di cui allalegge 5-8-1981 n. 416 art. 11 con il numero 00 148 vol. 2 foglio 377 in data 18-8-1982. Pubblicazione periodica mensile - Poste Italiane S.p.A. - Sped. in a.p. - D. L. 353/2003 (conv. in L. 27/02/2004 N° 46) art. 1, comma 1, DCB/CNSegreteria - Società Italiana di Odontostomatologia e Chirurgia Maxillo-Facciale c/o Università Cattolica del Sacro Cuore, Complesso Integrato Columbus, Via G. Moscati 31-33, 00100 Roma. Tel. 06 3503874 - E-mail: siocmf@hotmail.itSegretario e Tesoriere Prof. M. Procaccini.MINERVA STOMATOLOGICA REDATTORE CAPO  DIRETTORE SCIENTIFICO C. Paganelli P. L. SapelliCOMITATO DI REDAZIONEBiglioli F., Borracchini A., Brambilla E., Breschi L., Campisi G., Carossa S., Carrozzo M., Carmagnola D., Cerutti A., Chiapasco M., Cicciù D., Cicciù M., Cordasco G., Cortellini P., D’Aiuto F., Dalessandri D., Dalessandri M., Del Frabbro M., Di Rosario F., Dorigo E., Esposito M., Favia G., Ferrari M., Ferrario V., Fontana P., Francetti L., Gaffuri S., Gagliani M., Gastaldi G., Gherlone E., Laffranchi L., Levrini L., Lo Muzio L., Lodi G., Maggiore C., Maiorana C., Martina R., Montebugnoli L., Mortellaro C., Paganelli C., Pelo S., Perfetti G., Pini Prato G., Pizzo G., Prati C., Putignano A., Rimondini L., Roccuzzo M., Romeo E., Salgarello S., Sammartino G., Sanz M., Sardella A., Scarano A., Scully C., Sesenna E., Tian C., Tonni I., Trombelli L., Urbani G., Van Der Waal I., Warnakulasuriya S.RIVISTA BIMESTRALE DI ODONTOSTOMATOLOGIA FONDATA NEL 1952DA B. ROCCIA E T. OLIAROcontinuazione di: MINERVA ORTOGNATODONTICAORGANO UFFICIALE DELLA SOCIETÀ ITALIANADI ODONTOSTOMATOLOGIA E CHIRURGIA MAXILLO-FACCIALEDIRETTORE RESPONSABILEA. OliaroCONSIGLIO DIRETTIVO S.I.O.C.M.F. Presidente Vice Presidenti Segretario generale Segretario Tesoriere D. Cicciù C. Maggiore, C. Paganelli E. Rapisarda M. ProcacciniConsiglieriM. Bosco, S. Caputi, A. Carrassi, U. Covani, C. De Bernardi,G. P. Farronato, E. Gherlone, C. Mortellaro, A. Polimeni, F. ZaroneRevisori dei ContiA. Forabosco, G. Gallina, S. PizziPast President - Probi ViriE. Bertelli, R. Grandini, G. Nidoli, S. Pelo, P. L. SapelliPubblicazione associata a La Rivista aderisce al Codice di Autodisciplina degli Editori Medico Scientificiassociati a FARMAMEDIA e può essere oggetto di pianificazione pubblicitariaVol. 60 - Suppl. 1 al N. 3 MINERVA GASTROENTEROLOGICA E DIETOLOGICA IIIMINERVA ORTOP TRAUMATOL 2014;65(Suppl. 1 al N. 3):XXII Congresso NazionaleCollegio dei Docenti Universitaridi Discipline OdontostomatologicheMilano, 9-11 aprile 2015Anno: 2013Mese: DicembreVolume: 64No: 0Rivista: MINERVA ORTOPEDICA E TRAUMATOLOGICACod Rivista: MINERVA ORTOP TRAUMATOLLavoro: 3060-MOTtitolo breve: xxxxprimo autore: yyyypagine: 50 MINERVA STOMATOLOGICA April 2015ABSTRACT irrigation; control 2, distilled water for 1 min; control 3, distilled water activated with PUI for 20 sec; test 1, 17%EDTA for 1 min; test 2, 17% EDTA activated with PUI for 20 sec; test 3, 5.25% NaOCl for 1 min; test 4, 5.25% NaOCl activated with PUI for 20 sec; test 5, 17% EDTA for 1 min+ 5.25% NaOCl for 1 min; test 6, 17% EDTA activated with PUI for 20 sec + 5.25% NaOCl for 1 min; test 7, 17%EDTA activated with PUI for 20 sec + 5.25% NaOCl activated with PUI for 20 sec; test 8, 17%EDTA with PUI for 20 sec + three cycles of 5.25% NaOCl with PUI for 20 sec; test 9, three cycles of 17% EDTA with PUI for 20 sec + 5.25% NaOCl with PUI for 20 sec; test 10, three cycles of 17% EDTA with PUI for 20 sec + three cycles of 5.25%NaOCl with PUI for 20 sec. Finally, two longitudinal grooves were prepared on both buccal and lingual surfaces by using a diamond disc without penetrating the canal. The roots were then split into two halves with a hammer and chisel. 12 SEM photomicrographs were taken at X200 and X400 magni-fication at the coronal, middle, and apical thirds of each specimen. The canal walls were evaluated for the amount of debris and smear layer by using the 5-score system introduced by Hulsmann et al. by two blinded operators. Results. Root canal walls absolutely free of smear la-yer were not observed with any irrigation solution. The Kruskal-Wallis test revealed statistically significant diffe-rences in all the canal sections between the groups that used chelation (EDTA17%)+PUI and other groups; the EDTA and EDTA/PUI groups presented similar smear la-yer removal, but EDTA/PUI removed significantly more debris as compared to EDTA alone. The groups with NaOCl+EDTA showed statistically significant differences in smear layer scores compared to NaOCl and EDTA alone. There were also statistically significant differen-ces between the control group and all the experimental groups in three canal sections. Conclusion. The best conclusion in this study were obtained when a final irrigation with a chelating agent was used. Within the limitations of this in vitro study it can be concluded that PUI did not improve smear la-yer removal by EDTA. Moreover, the smear layer scores were similar regardless of the root canal third after the final irrigation protocol with EDTA. On the other hand EDTA/PUI removed significantly more debris as compa-red with EDTA alone. Comparison on sealer penetration into denti-nal tubules using self-adjusting file cleaning-shaping-irrigation system and conventional endodontic needle irrigation L. Generali 1, C. Pettenati 1, E. Righi 2, C. Bertoldi 1, U. Con-solo 1 1Department of Surgery, Medicine, Dentistry and Morpho-logical Sciences with Transplant Surgery, Oncology and Re-generative Medicine Relevance, School of Dentistry, Univer-sity of Modena and Reggio Emilia, Modena, Italy 2Department of Diagnostic, Clinical and Public Health Medi-cine, University of Modena and Reggio Emilia, Modena, Italy Aim. The aim of the study was to compare the effect of the self-adjusting file cleaning-shaping-irrigation sy-stem and conventional needle root canal irrigation on sealer penetration into dentinal tubules using confocal laser scanning microscopy. long-distance prognosis, because of biomechanical pro-blems (unfavourable coronal-radicular rate) After ade-quate clinical managment, it is fundamental that patients be followed up during a certain period of time for cli-nical treatment success. Our retrospective analysis eva-luates conservative therapy success and fractured teeth survival according to the treatment given. Methods. Through clinical and radiological investiga-tions, the Authors have analyzed several cases of middle-root fractures in anterior teeth, particularly, 1.1-2.1-4.1-1.4 dental elements. 21 teeth have been studied in a popula-tion of 6 – 62 years old patients. Considered parameters were: possible related fracture, fragments delocation, mo-bility, tooth sensitivity and pulp complications, diastasis, periodontal inflammation. Observation was made after 6 months, 1 year and 3 years from traumatic event. Data have bene the statistically analyzed. Results. In our statistic analysis, immediately after traumatic event (time 0), multiple fractures were relea-ved in 38.1% of cases. Mobility was observed in 28.57% of cases. From a clinical point of view, most frequent symptoms were: hypersensitivity in 66.7%, pulp lesion in 42.85%, periapical pathology in 19% (1 on 21). In time 0, in 47.61% of cases, delocation of fracture coro-nal fragment was observed. In that case, splinting with adjacent teeth, immediately followed by endodontic tre-atment of involved teeth in 52% of cases was planned. Endodontic treatment was necessary because of pulp complications onset in one of cases after 6 months and in two one-year follow-ups. In one of cases, after 3 years from the therapy, tooth extraction beacause of diastasis, mobility and flogosis was required. Conclusion. Clinical and statistical analysis shows a high index of survival and success rate in restoration therapy of horizontal middle-root fractured teeth. Just in one case, tooth extraction was mandatory after 3 years. In most ca-ses, an immediate endodontic treatment was necessary. In a restricted number of the cases a late endodontic treatment, beacause of complications onset, was needed. Evaluation of debris and smear layer remo-ved by different irrigation protocols perfor-med with and without the use of the passive ultrasonic irrigation: a SEM analysis. V. Spicciarelli, P. F. Porciani, G. Corsentino, G. Franciosi, G. Nofri, S. Grandini Biotecnologie Mediche, Siena Aim. The purpose of this study is to evaluate by SEM the efficacy of different irrigation protocols in the remo-val of debris and smear layer from the root canal walls. Methods. Fifty-six extracted human single teeth were selected for this study. Radiographs were taken in buc-colingual and proximal directions to confirm the pre-sence of a single canal and absence of calcifications or resorptions. Crowns were trimmed to a uniform length of 15 mm with a carborundum disk.Chemomechanical preparation was performed by a single operator with Reciproc system and irrigation was carried out with 3 mL of NaOCl 5,25% for 20 seconds. The groups differed in the final washing. Samples were randomly divided into ten test groups (n=5) and three control groups (n=2): control 1, no Vol. 64 - Suppl. 1 al No. 2 MINERVA STOMATOLOGICA 51 ABSTRACTMethods. The surface and microstructural characteristi-cs of 15 new HyFlex EDM instruments were analyzed by ESEM equipped with energy dispersive x-ray spectropho-tometry (EDS) and optical metallographic imaging. Instru-ments were subjected to instrumentation tests on severely curved root canals (ranging between 50° and 70°) of ex-tracted multi-rooted teeth. Once that canal patency was verified with a #10 K-file, the working length was determi-ned by subtracting 1mm. HyFlex EDM files were used with a 16:1 reduction handpiece X-Smart (Dentsply Maillefer, Baillagues, Switzerland) following the manufacture’s direc-tion, at 500 rpm and 2.5Ncm, with slightly apical pressure and pecking motion. The operative sequence was: 25/12 at 2/3 of the WL, 10/05 and 25/08 at WL. Irrigation was per-formed at every change of instrument, with a total amount of 3 ml of 5% NaOCl and 3 ml of 10% EDTA (Ogna, Mug-giò, Italy). Each instrument was used in 10 curved canals, washed in an ultrasonic bath containing detergent for 10 min and then autoclaved at 134°C. Surface and microstruc-tural characterizations were repeated on used instruments at same points and with same angulations to compare the pre- and post operative micrographs, in order to verify the appearance of fractures, unwinding, microcracks, blade di-sruption and tip deformation. Results. Surface and microstructural characteriza-tion of new instruments revealed the typical features of a NiTi ED-Machined alloy with an irregular and “craters-like” surface. High magnification microgra-phs disclosed a non-uniform structure were pits, po-res and voids caused the peculiar aspect of a “rough-spark-machined” surface. No fractures were registered during instrumentation of curved canals. Surface and microstructural characterization of used files revealed no wear and no degradation of the 25.12 and 25.08 files. The tip segment was confirmed as the most me-chanically stressed portion of 10.05 prototypes. All the instruments, after several uses, well-preserved the “craters-like” irregular surface without cutting edge al-terations. The metallographic inspection on the cross section of brand new HyFlex EDM files showed an homogeneous martensitic phase. The microstructure appeared uniform from the surface to the bulk, and no microcracks or defect were identified, even at high optical magnification (1000X). Conclusion. Unaltered spark-machined surface and low microstructural degradation are the main features of recently introduced HyFlex EDM. Caution would be re-commended regarding reuse of small HyFlex EDM files. Instruments exhibited a safe in vitro use in presence of severely curved canals. Vascular endothelia growth factor (VEGF) expression in human tooth germs early and later stage development F. Mastrangelo 1, M. T. Sberna 2, R. Vinci 2, L. Tettamanti 1, G. Cantatore 2, A. Tagliabue 1, E. F. Gherlone 2 1Dipartimento di Scienze Chirurgiche e Morfologiche, Uni-versità degli Studi dell’Insubria, Varese2Dipartimento di Scienze Mediche ed Odontostomatolog-iche, Ateneo Vita e Salute, Università S. Raffaele, Milano Aim. The angiogenesis plays a crucial role in many human physiological and pathological processes during Methods. Twenty-two upper incisors were selected from a pool of extracted teeth. The teeth had a single round canal with a long-short cross-section diameter ratio ≤2,5 at 8 mm from the apex and similar root canal ana-tomy. The teeth were randomly divided into two groups in according to the irrigation technique used: self-adju-sting file system (SAF) (group 1) and conventional endo-dontic needle irrigation (group 2). The groups resulted homogeneous according to the canal width. The same operator performed all experimental procedures. The crowns were sectioned at the cementoenamel junction and the root length was standardized to 13 mm from the apex. The coronal thirds was enlarged with size 1, 2, 3 and 4 Gates-Glidden drill. The working length (WL) was established by the insertion of a 21-mm #10 K-File until its tip appeared at the apical foramen under microscopic vision at 10x. A glide path was performed using size 13, 16 and 19/.02 PathFile at 300 rpm. In the group 1 the 1,5-mm-diameter SAF was operated for four minutes and continuous irrigation with 5,25% NaOCl was performed by a VATEA peristaltic pump at a rate of 4 mL/min. In the group 2 the canals was instrumented using Protaper Universal to a size of the F2 instruments at the working length and irrigated with 1 ml 5% NaOCl at every instru-ment changes. In both groups a final irrigation of 2.0 mL 1% EDTA for 30s was performed. Roots filling was perfor-med with Guttacore Obturators with TopSeal labeled with 0,1wt% Rhodamin B. Transverse sections at 2, 5 and 7 mm from apical foramen were observed using a confocal la-ser scanning microscopy. Total percentage and maximum depth of sealer penetration were measured and registered using ImageJ software. Statistical analysis was performed by ANOVA and Turkey test. Results. The 7-mm and 5-mm sections of group 1 showed a significantly higher percentage and maximum depth of sealer penetration respect the group 2. Not si-gnificant difference was found at 2-mm sections betwe-en the two groups. Conclusion. The self-adjusting file cleaning-shaping-irrigation system improved the sealer penetration at coronal and middle sections respect the conventional endodontic needle irrigation. At apical sections not dif-ferences were found. HyFlex EDM rotary Ni-Ti prototypes: the ef-fect of an innovative machining technology on Ni-Ti wear C. Pirani 1, L. Generali 2, F. Iacono 1, P. Sassatelli 3, C. Prati 1 1School of Dentistry, Endodontic Clinical Section, Depart-ment of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Alma Mater Studiorum, Bologna, Italy 2Department of Surgery, Medicine, Dentistry and Morpho-logical Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance, School of Dentistry, En-dodontic Section, University of Modena and Reggio Emilia, Modena, Italy 3Department of Engineering Enzo Ferrari (DIEF), University of Modena and Reggio Emilia, Modena, Italy Aim. HyFlex EDM files were recently introduced pre-senting an innovative electro discharge machining (EDM) process of fabrication. The aim of this study was to evalua-te the surface and microstructural alterations of new and in vitro used HyFlex EDM Ni-Ti rotary prototypes. 

Comparison on sealer penetration into dentinal tubules using self-adjusting file cleaning- shaping-irrigation system and conventional endodontic needle irrigation

Comparison on sealer penetration into dentinal tubules using self-adjusting file cleaning- shaping-irrigation system and conventional endodontic needle irrigation

Abstract

Similar works

Full text

Available Versions

Archivio istituzionale della ricerca - Università di Modena e Reggio Emilia