Hülsmann, Michael

[["dc.bibliographiccitation.firstpage","1410"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Journal of Endodontics"],["dc.bibliographiccitation.lastpage","1413"],["dc.bibliographiccitation.volume","36"],["dc.contributor.author","Roedig, Tina"],["dc.contributor.author","Bozkurt, Meral"],["dc.contributor.author","Konietschke, Frank"],["dc.contributor.author","Hülsmann, Michael"],["dc.date.accessioned","2018-11-07T08:40:53Z"],["dc.date.available","2018-11-07T08:40:53Z"],["dc.date.issued","2010"],["dc.description.abstract","Introduction: The aim of this study was to compare the efficiency of a sonic device (Vibringe), syringe irrigation, and passive ultrasonic irrigation in the removal of debris from simulated root canal irregularities. Methods: Root canals with 2 standardized grooves in the apical and coronal parts were filled with dentin debris. Three different irrigation procedures were performed with NaOCl (1%) and (1) syringe irrigation, (2) Vibringe, and (3) passive ultrasonic irrigation. The amount of remaining debris was evaluated by using a 4-grade scoring system. Results: Ultrasonic irrigation removed debris significantly better from the artificial canal irregularities than the Vibringe System and syringe irrigation (P < .0001). The Vibringe System demonstrated significantly better results than syringe irrigation in the apical part of the root canal (P = .011). Conclusions: Passive ultrasonic irrigation is more effective than the Vibringe System or syringe irrigation in removing debris. The sonic device demonstrated significantly better results than syringe irrigation in the apical root canal third. (J Endod 2010;36:1410-1413)"],["dc.identifier.doi","10.1016/j.joen.2010.04.023"],["dc.identifier.isi","000280691900027"],["dc.identifier.pmid","20647107"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19341"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0099-2399"],["dc.title","Comparison of the Vibringe System with Syringe and Passive Ultrasonic Irrigation in Removing Debris from Simulated Root Canal Irregularities"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","912"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","International Endodontic Journal"],["dc.bibliographiccitation.lastpage","919"],["dc.bibliographiccitation.volume","36"],["dc.contributor.author","Rodig, T."],["dc.contributor.author","Hülsmann, Michael"],["dc.date.accessioned","2018-11-07T10:34:23Z"],["dc.date.available","2018-11-07T10:34:23Z"],["dc.date.issued","2003"],["dc.description.abstract","Aim To present a case of a mandibular second premolar with three root canals. Summary An accurate diagnosis of the morphology of the root canal system is a prerequisite for successful root canal treatment. A review of the literature reveals a low incidence of all types of premolars with three root canals. Diagnostic means such as preoperative radiographs and examination of the pulp chamber floor aid the location of root canal orifices. The diagnostic and therapeutic problems concerning premolars with unusual anatomy are described on the basis of a clinical example. A case report describes the successful treatment of a mandibular second premolar with three root canals. Key learning points Clinicians should be aware of unusual root canal anatomy in mandibular premolars. Radiographs exposed at two different horizontal angles and their careful interpretation facilitate the search of additional root canals. The use of magnification and additional lighting are recommended for the clinical examination of the pulpal floor."],["dc.identifier.doi","10.1111/j.1365-2591.2003.00750.x"],["dc.identifier.isi","000186871100014"],["dc.identifier.pmid","14689961"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/44856"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Blackwell Publishing Ltd"],["dc.relation.issn","0143-2885"],["dc.title","Diagnosis and root canal treatment of a mandibular second premolar with three root canals"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","553"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","International Endodontic Journal"],["dc.bibliographiccitation.lastpage","562"],["dc.bibliographiccitation.volume","40"],["dc.contributor.author","Roedig, Tina"],["dc.contributor.author","Huelsmann, Micbael"],["dc.contributor.author","Kahlmeier, C."],["dc.date.accessioned","2018-11-07T11:01:01Z"],["dc.date.available","2018-11-07T11:01:01Z"],["dc.date.issued","2007"],["dc.description.abstract","Aim To compare root canal preparation using ProFile .04 and GT Rotary nickel-titanium instruments (both Dentsply Maillefer, Ballaigues, Switzerland). Methodology Fifty extracted mandibular molars with mesial root canal curvatures between 20 and 40 degrees were randomly divided into two groups and embedded in a muffle system. All root canals were prepared to size 45 using ProFile .04 or GT rotary instruments. The following parameters were evaluated: straightening of root canal curvature, postoperative root canal cross-section, cleaning ability, safety issues and working time. Results Both NiTi systems maintained curvature well; the mean degree of straightening was < 1 degrees. The majority of the root canals prepared with ProFile .04 (80.8%) and GT (84.0%) postoperatively showed a round or oval cross-section. For debris, ProFile .04 and GT rotary achieved 67.1% and 71.6% scores of 1 and 2, respectively. Concerning the coronal region statistical analysis showed a better result for GT than for ProFile .04. For the middle and apical thirds of the root canals, results did not differ significantly. None of the two systems completely removed smear layer. Ten procedural incidents occurred with ProFile .04 compared with five with GT. Mean working time was shorter for ProFile .04 (131.8 s) than for GT (143.7 s); the difference was not significant. Conclusions Both systems respected original root canal curvature well and were safe to use. Smear layer removal was not satisfactory with either systems."],["dc.identifier.doi","10.1111/j.1365-2591.2007.01270.x"],["dc.identifier.isi","000247130300009"],["dc.identifier.pmid","17511784"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51061"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Blackwell Publishing"],["dc.relation.issn","0143-2885"],["dc.title","Comparison of root canal preparation with two rotary NiTi instruments: ProFile .04 and GT Rotary"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","942"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","International Endodontic Journal"],["dc.bibliographiccitation.lastpage","948"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Roedig, Tina"],["dc.contributor.author","Reicherts, Philipp"],["dc.contributor.author","Konietschke, Frank"],["dc.contributor.author","Dullin, Christian"],["dc.contributor.author","Hahn, Wolfram"],["dc.contributor.author","Hülsmann, Michael"],["dc.date.accessioned","2018-11-07T09:34:31Z"],["dc.date.available","2018-11-07T09:34:31Z"],["dc.date.issued","2014"],["dc.description.abstract","AimTo compare the efficacy of reciprocating and rotary NiTi-instruments in removing filling material from curved root canals using micro-computed tomography. MethodologySixty curved root canals were prepared and filled with gutta-percha and sealer. After determination of root canal curvatures and radii in two directions as well as volumes of filling material, the teeth were assigned to three comparable groups (n=20). Retreatment was performed using Reciproc, ProTaper Universal Retreatment or Hedstrom files. Percentages of residual filling material and dentine removal were assessed using micro-CT imaging. Working time and procedural errors were recorded. Statistical analysis was performed by variance procedures. ResultsNo significant differences amongst the three retreatment techniques concerning residual filling material were detected (P>0.05). Hedstrom files removed significantly more dentine than ProTaper Universal Retreatment (P<0.05), but the difference concerning dentine removal between both NiTi systems was not significant (P>0.05). Reciproc and ProTaper Universal Retreatment were significantly faster than Hedstrom files (P=0.0001). No procedural errors such as instrument fracture, blockage, ledging or perforation were detected for Hedstrom files. Three perforations were recorded for ProTaper Universal Retreatment, and in both NiTi groups, one instrument fracture occured. ConclusionsRemnants of filling material were observed in all samples with no significant differences between the three techniques. Hedstrom files removed significantly more dentine than ProTaper Universal Retreatment, but no significant differences between both NiTi systems were detected. Procedural errors were observed with ProTaper Universal Retreatment and Reciproc."],["dc.description.sponsorship","VDW"],["dc.identifier.doi","10.1111/iej.12239"],["dc.identifier.isi","000342852000005"],["dc.identifier.pmid","24386931"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32188"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1365-2591"],["dc.relation.issn","0143-2885"],["dc.title","Efficacy of reciprocating and rotary NiTi instruments for retreatment of curved root canals assessed by micro-CT"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","919"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","International Endodontic Journal"],["dc.bibliographiccitation.lastpage","928"],["dc.bibliographiccitation.volume","35"],["dc.contributor.author","Rodig, T."],["dc.contributor.author","Hülsmann, Michael"],["dc.contributor.author","Muhge, M."],["dc.contributor.author","Schafers, F."],["dc.date.accessioned","2018-11-07T09:52:36Z"],["dc.date.available","2018-11-07T09:52:36Z"],["dc.date.issued","2002"],["dc.description.abstract","Aim The aim of this study was to compare the preparation of oval distal root canals in mandibular molars using three different nickel-titanium (NiTi) instruments: Lightspeed (Lightspeed Inc., San Antonio, TX, USA), ProFile .04 (Maillefer, Ballaigues, Switzerland) and Quantec SC (Tycom, Irvine, CA, USA). Methodology Three groups of 20 extracted mandibular molars with oval distal root canals were embedded in a muffle system as described by Bramante et al. (1987) and modified by Hulsmann et al. ( 999). Preparation of the root canals was performed with particular emphasis on the buccal and lingual extensions of the oval shape. The following parameters were evaluated: comparison of pre- and postoperative photographs with regard to the buccal and lingual extensions of the preparation, safety issues (file fractures, perforations, apical blockages, loss of working length), cleaning ability (SEM investigated using a 5-score system for remaining debris and smear layer) and working time. Results Superimposition of pre- and postoperative cross-sections in the majority of specimens revealed uninstrumented or incompletely instrumented buccal or lingual extensions (Lightspeed and Quantec SC, 56.7%; ProFile .04, 55%). For debris removal, Quantec SC achieved the best results (54.2% scores 1 and 2), followed by ProFile .04 (52.5%) and Lightspeed (46.7%). Preparation resulted in substantial smear layer covering the canal walls for every system (ProFile .04, 38.3%; Quantec SC, 36.6%; Lightspeed, 28.3%). Differences between the three systems were not significant for any of the parameters investigated. Preparation with Lightspeed resulted in two fractured instruments; with Quantec SC, two apical blockages occurred. With ProFile .04, no complications were noticed. Mean working time was shorter for ProFile .04 (261.2 s) than for Quantec SC (272.4 s) and Lightspeed (338.9 s); the differences were not significant. Conclusions The flexibility of the NiTi instruments investigated in this study did not allow controlled preparation of the buccal and lingual extensions of oval root canals. The instruments frequently produced a circular bulge in the canal whilst the buccal and lingual extensions remained unprepared, leaving smear layer and debris."],["dc.identifier.doi","10.1046/j.1365-2591.2002.00599.x"],["dc.identifier.isi","000179047800006"],["dc.identifier.pmid","12453021"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/36162"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Blackwell Publishing Ltd"],["dc.relation.issn","0143-2885"],["dc.title","Quality of preparation of oval distal root canals in mandibular molars using nickel-titanium instruments"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","173"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","International Endodontic Journal"],["dc.bibliographiccitation.lastpage","182"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Roedig, Tina"],["dc.contributor.author","Kupis, J."],["dc.contributor.author","Konietschke, Frank"],["dc.contributor.author","Dullin, Christian"],["dc.contributor.author","Drebenstedt, Steffi"],["dc.contributor.author","Huelsmann, Micbael"],["dc.date.accessioned","2018-11-07T09:44:51Z"],["dc.date.available","2018-11-07T09:44:51Z"],["dc.date.issued","2014"],["dc.description.abstract","AimTo compare the efficacy of hand and rotary nickel-titanium (NiTi) instruments in removing filling material from curved root canals of root filled teeth with unknown preparation parameters. MethodologyNinety mandibular molars with root fillings in curved root canals and homogenous root canal filling extending to 0-2mm short of the radiographic apex were selected. Root canal curvatures and radii were measured in two directions and microcomputed tomography (micro-CT) scans were used to determine preoperative volumes of the filling material. Subsequently, the teeth were assigned to two identical groups (n=14). The root fillings were removed with Hedstrom files or FlexMaster NiTi rotary instruments. Postoperative micro-CT imaging was used to assess the percentage of residual filling material as well as the amount of dentine removal. Working time and procedural errors were recorded. Data were compared using analysis of covariance and analysis of variance procedures. ResultsRoot canals retreated with Hedstrom files were associated with less remaining filling material compared with FlexMaster instruments (P<0.05). Both retreatment techniques removed similar amounts of dentine with no significant differences (P>0.05). FlexMaster instruments were significantly faster than Hedstrom files (P<0.05). No procedural errors were detected in the Hedstrom group, whilst three instruments fractured in the FlexMaster group. ConclusionsHand instrumentation resulted in significantly less residual filling material than retreatment with rotary NiTi instruments. Dentine removal was not significantly different for both techniques. FlexMaster NiTi rotary files were significantly faster than Hedstrom files, but were associated with a higher risk of instrument fracture."],["dc.identifier.doi","10.1111/iej.12128"],["dc.identifier.isi","000329509600008"],["dc.identifier.pmid","23701239"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34489"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1365-2591"],["dc.relation.issn","0143-2885"],["dc.title","Comparison of hand and rotary instrumentation for removing gutta-percha from previously treated curved root canals: a microcomputed tomography study"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","580"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","International Endodontic Journal"],["dc.bibliographiccitation.lastpage","589"],["dc.bibliographiccitation.volume","45"],["dc.contributor.author","Roedig, Tina"],["dc.contributor.author","Hausdoerfer, T."],["dc.contributor.author","Konietschke, Frank"],["dc.contributor.author","Dullin, Christian"],["dc.contributor.author","Hahn, Wolfram"],["dc.contributor.author","Huelsmann, Micbael"],["dc.date.accessioned","2018-11-07T09:10:06Z"],["dc.date.available","2018-11-07T09:10:06Z"],["dc.date.issued","2012"],["dc.description.abstract","Rodig T, Hausdorfer T, Konietschke F, Dullin C, Hahn W, Hulsmann M. Efficacy of D-RaCe and ProTaper Universal Retreatment NiTi instruments and hand files in removing gutta-percha from curved root canals a micro-computed tomography study. International Endodontic Journal, 45, 580589, 2012. Abstract Aim To compare the efficacy of two rotary NiTi retreatment systems and Hedstrom files in removing filling material from curved root canals. Methodology Curved root canals of 57 extracted teeth were prepared using FlexMaster instruments and filled with gutta-percha and AH Plus. After determination of root canal curvatures and radii in two directions, the teeth were assigned to three identical groups (n = 19). The root fillings were removed with D-RaCe instruments, ProTaper Universal Retreatment instruments or Hedstrom files. Pre- and postoperative micro-CT imaging was used to assess the percentage of residual filling material as well as the amount of dentine removal. Working time and procedural errors were recorded. Data were analysed using analysis of covariance and analysis of variance procedures. Results D-RaCe instruments were significantly more effective than ProTaper Universal Retreatment instruments and Hedstrom files (P < 0.05). Hedstrom files removed significantly less dentine than the rotary NiTi systems (P < 0.0001). D-RaCe instruments were significantly faster compared to both other groups (P < 0.05). No procedural errors such as instrument fracture, blockage, ledging or perforation were detected in the Hedstrom group. In the ProTaper group, four instrument fractures and one lateral perforation were observed. Five instrument fractures were recorded for D-RaCe. Conclusions D-RaCe instruments were associated with significantly less residual filling material than ProTaper Universal Retreatment instruments and hand files. Hedstrom files removed significantly less dentine than both rotary NiTi systems. Retreatment with rotary NiTi systems resulted in a high incidence of procedural errors."],["dc.identifier.doi","10.1111/j.1365-2591.2012.02014.x"],["dc.identifier.isi","000303802400011"],["dc.identifier.pmid","22264204"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26417"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","0143-2885"],["dc.title","Efficacy of D-RaCe and ProTaper Universal Retreatment NiTi instruments and hand files in removing gutta-percha from curved root canals - a micro-computed tomography study"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","581"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","International Endodontic Journal"],["dc.bibliographiccitation.lastpage","589"],["dc.bibliographiccitation.volume","43"],["dc.contributor.author","Roedig, Tina"],["dc.contributor.author","Sedghi, M."],["dc.contributor.author","Konietschke, Frank"],["dc.contributor.author","Lange, K."],["dc.contributor.author","Ziebolz, Dirk"],["dc.contributor.author","Huelsmann, Micbael"],["dc.date.accessioned","2018-11-07T08:41:44Z"],["dc.date.available","2018-11-07T08:41:44Z"],["dc.date.issued","2010"],["dc.description.abstract","P>Aim To compare of the efficacy of syringe irrigation, RinsEndo (R) (Durr Dental, Bietigheim, Germany) and passive ultrasonic irrigation (PUI) in the removal of dentinal debris from simulated irregularities in root canals with different apical sizes. Methodology Thirty extracted human pre-molars were randomly divided into three groups (n = 10) followed by root canal preparation with rotary FlexMaster (R) NiTi instruments (VDW, Munich, Germany) to size 30, 0.02 taper (group 1), size 40, 0.02 taper (group 2) or size 50, 0.02 taper (group 3). The teeth were split longitudinally, and a standard groove and three hemispherical-shaped cavities were cut into the root canal halves. Grooves and cavities were filled with dentinal debris before each irrigation procedure and the root halves were reassembled. In all groups three different irrigation procedures were performed with 30 mL NaOCl (1%) and (i) syringe, (ii) RinsEndo (R) and (iii) PUI. The amount of remaining debris was evaluated under a microscope with 30x magnification and a four score system. The data were analysed with a non-parametric analysis of covariance and multiple comparisons using the Tukey adjustment (P = 0.05). Results Passive ultrasonic irrigation removed debris significantly better from the artificial canal irregularities than RinsEndo (R) and syringe irrigation irrespective of the root canal diameter. Only in group 1 (30, 0.02 taper) the difference between PUI and RinsEndo (R) was not statistically significant (P = 0.99). RinsEndo (R) demonstrated significantly better results than syringe irrigation in all groups (P < 0.001). Conclusions Ultrasonic irrigation is more effective than syringe irrigation or RinsEndo (R) in removing debris from artificial extensions in straight root canals."],["dc.identifier.doi","10.1111/j.1365-2591.2010.01721.x"],["dc.identifier.isi","000278566500006"],["dc.identifier.pmid","20636517"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19533"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","0143-2885"],["dc.relation.orgunit","Poliklinik für Präventive Zahnmedizin, Parodontologie und Kariologie"],["dc.title","Efficacy of syringe irrigation, RinsEndo (R) and passive ultrasonic irrigation in removing debris from irregularities in root canals with different apical sizes"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1155"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","International Endodontic Journal"],["dc.bibliographiccitation.lastpage","1161"],["dc.bibliographiccitation.volume","44"],["dc.contributor.author","Roedig, Tina"],["dc.contributor.author","Hirschleb, Manja"],["dc.contributor.author","Zapf, Antonia"],["dc.contributor.author","Hülsmann, Michael"],["dc.date.accessioned","2018-11-07T08:49:30Z"],["dc.date.available","2018-11-07T08:49:30Z"],["dc.date.issued","2011"],["dc.description.abstract","Rodig T, Hirschleb M, Zapf A, Hulsmann M. Comparison of ultrasonic irrigation and RinsEndo for the removal of calcium hydroxide and Ledermix paste from root canals. International Endodontic Journal, 44, 1155-1161, 2011. Aim To compare the efficacy of ultrasonic irrigation and RinsEndo in removing calcium hydroxide and Ledermix paste from simulated root canal irregularities. Methodology The root canals of sixty extracted single-rooted teeth were prepared using FlexMaster rotary instruments to size 60, 0.02 taper. The roots were split longitudinally, and a standardized groove was prepared in the apical part of one segment. The teeth were randomly allocated into two groups (n = 30), according to the intracanal dressing. In the first group, grooves were filled with calcium hydroxide paste (Calxyl), whereas the grooves in the second group were filled with Ledermix paste. After reassembly, the root canals were completely filled with the respective medicament using a lentulo. The removal of medicament dressing was performed after 7 days with either passive ultrasonic irrigation or RinsEndo and 1% sodium hypochlorite for 3 min. The amount of remaining medicament was evaluated under a microscope with 30 x magnification using a four-grade scoring system. A regression analysis with P <= 0.05 was performed. Results Ledermix paste removal was significantly more effective than the removal of calcium hydroxide (P < 0.0001), whereas irrigation technique was not a significant factor (P = 0.3712). The percentages of complete removal of calcium hydroxide and Ledermix paste were 11.7% and 51.7%, respectively. Conclusions None of the irrigation techniques was able to completely remove the intracanal medicaments from the apical part of the root canal. Irrespective of the irrigation technique, significantly less Ledermix paste was detected compared with calcium hydroxide."],["dc.identifier.doi","10.1111/j.1365-2591.2011.01937.x"],["dc.identifier.isi","000297248700010"],["dc.identifier.pmid","21910743"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21472"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","0143-2885"],["dc.title","Comparison of ultrasonic irrigation and RinsEndo for the removal of calcium hydroxide and Ledermix paste from root canals"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","519"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","International Endodontic Journal"],["dc.bibliographiccitation.lastpage","527"],["dc.bibliographiccitation.volume","43"],["dc.contributor.author","Roedig, Tina"],["dc.contributor.author","Vogel, S."],["dc.contributor.author","Zapf, Antonia"],["dc.contributor.author","Hülsmann, Michael"],["dc.date.accessioned","2018-11-07T08:42:47Z"],["dc.date.available","2018-11-07T08:42:47Z"],["dc.date.issued","2010"],["dc.description.abstract","P>Aim To compare the efficacy of different solutions (1% sodium hypochlorite, 10% citric acid and 20% EDTA) in the removal of calcium hydroxide from root canals. Methodology One hundred single-rooted maxillary incisors were prepared to size 50 and split longitudinally. Two standardized grooves were cut into the apical and coronal part of the root canal dentine and filled with calcium hydroxide. The reassembled teeth were irrigated with a syringe and a size 30 needle using the following irrigants: (i) 20% EDTA, (ii) 10% citric acid, (iii) 1% NaOCl, (iv) 10% citric acid + 1% NaOCl, (v) 20% EDTA + 1% NaOCl and (vi) water (control). Volume of irrigant was 20 mL in each group, and irrigation time was 5 min. Evaluation of cleanliness of the blinded specimens was performed by two calibrated observers under a microscope with 30x magnification using a four-grade scoring system as described by van der Sluis et al. (2007). Statistical evaluation was performed using a SAS-macro for non-parametric multifactorial analysis (P < 0.05). Results The best results were found for irrigation with EDTA and citric acid, whereas NaOCl and water showed the least effect. The combinations of irrigants did not result in improvement in terms of cleanliness. Conclusions None of the irrigants nor their respective combinations were able to completely remove the calcium hydroxide. Chelating agents such as citric acid and EDTA showed the best results. The combination of chelators and NaOCl did not result in significant improvement of calcium hydroxide removal."],["dc.identifier.doi","10.1111/j.1365-2591.2010.01709.x"],["dc.identifier.isi","000277322100009"],["dc.identifier.pmid","20536580"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19781"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell Publishing, Inc"],["dc.relation.issn","0143-2885"],["dc.title","Efficacy of different irrigants in the removal of calcium hydroxide from root canals"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]