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de Carvalho FMA, Gonçalves LCDO, Marques AAF, Alves V, Bueno CEDS, De Martin AS. Cleaning Effectiveness of a Reciprocating Single-file and a Conventional Rotary Instrumentation System. Open Dent J 2017; 10:704-713. [PMID: 28217185 PMCID: PMC5299587 DOI: 10.2174/1874210601610010704] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 09/14/2016] [Accepted: 10/28/2016] [Indexed: 11/24/2022] Open
Abstract
Objective: To compare cleaning effectiveness by histological analysis of a reciprocating single-file system with ProTaper rotary instruments during the preparation of curved root canals in extracted teeth. Methods: A total of 40 root canals with curvatures ranging between 20 - 40 degrees were divided into two groups of 20 canals. Canals were prepared to the following apical sizes: Reciproc size 25 (n=20); ProTaper: F2 (n=20). The normal distribution of data was tested by the Kolmogorov-Smirnov test and the values obtained for the test (Mann-Whitney U test, P < .05) were statistically analyzed using the GraphPad InStat for the Mac OS software (GraphPad Software, La Jolla, CA, USA). Results: There were no significant differences in remaining debris (P > .05) between the two groups. Conclusion: The application of reciprocating motion during instrumentation did not result in increased debris when compared with continuous rotation motion, even in the apical part of curved canals. Both instruments resulted in debris in the canal lumen, irrespective of the movement kinematics applied.
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Affiliation(s)
| | | | | | - Vanessa Alves
- Department of Endodontics, Centre for Dental Research São Leopoldo Mandic, Campinas, Brazil
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Gonçalves AN, da Frota MF, Sponchiado Júnior EC, de Carvalho FMA, da Fonseca Roberti Garcia L, Franco Marques AA. Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals. J Conserv Dent 2016; 18:436-9. [PMID: 26752834 PMCID: PMC4693313 DOI: 10.4103/0972-0707.168796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Aim: To evaluate the apical transportation induced by two instrumentation techniques in severely curved simulated canals. Materials and Methods: Forty simulated canals were divided into two groups (n = 20), according to the following instrumentation techniques: ProTaper Universal Manual System and a hybrid technique. The simulated canals in the ProTaper group were prepared following the technique recommended by the manufacturer: SX files in the cervical third of the root canal and S1, S2, and F1 files up to the working length. In the hybrid group, preparation was performed with K-files sizes 15, 20, and 25 to the working length, followed by cervical preparation with Gates Glidden burs 1, 2, and 3. Apical finishing was performed with the ProTaper manual files S2 and F1. To analyze apical transportation, the simulated canals were photographed before and after preparation at ×8. The images of the root canals pre- and post-instrumentation were superimposed to measure the distance between the inner and outer walls along the first 3 mm of the apical third. Results: The hybrid group presented the highest apical transportation values; however, with no statistically significant difference in comparison with the ProTaper group (P > 0.05). Conclusions: Both techniques induced similar apical transportation in the original path of the simulated root canals.
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Carvalho MDS, Sponchiado EC, Garrido ADB, Garcia LDFR, Marques AAF. Histological evaluation of the cleaning effectiveness of two reciprocating single-file systems in severely curved root canals: Reciproc versus WaveOne. Eur J Dent 2015; 9:80-86. [PMID: 25713489 PMCID: PMC4319305 DOI: 10.4103/1305-7456.149648] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE The aim of this study was to evaluate the cleaning effectiveness achieved with two reciprocating single-file systems in severely curved root canals: Reciproc and WaveOne. MATERIALS AND METHODS Twenty-five mesial roots of mandibular molars were randomly separated into two groups, according to the instrumentation system used. The negative control group consisted of five specimens that were not instrumented. The mesial canals (buccal and lingual) in Reciproc Group were instrumented with file R25 and the WaveOne group with the Primary file. The samples were submitted to histological processing and analyzed under a digital microscope. RESULTS The WaveOne group presented a larger amount of debris than the Reciproc Group, however, without statistically significant difference (P > 0.05). A larger amount of debris in the control group was observed, with statistically significant difference to Reciproc and WaveOne groups (P < 0.05). CONCLUSIONS The two reciprocating single-file instrumentation systems presented similar effectiveness for root canal cleaning.
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Affiliation(s)
| | | | | | - Lucas da Fonseca Roberti Garcia
- Department of Physiology and Pathology, Araraquara School of Dentistry, Univ Estadual Paulista, Araraquara, São Paulo, Brazil
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Júnior ECS, da Fonseca TS, da Frota MF, de Carvalho FMA, Marques AAF, Garcia LDFR. Cleaning capacity of hybrid instrumentation technique using reamer with alternating cutting edges system files: Histological analysis. Contemp Clin Dent 2014; 5:203-8. [PMID: 24963247 PMCID: PMC4067784 DOI: 10.4103/0976-237x.132330] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Aim: The aim of the following study is to evaluate the cleaning capacity of a hybrid instrumentation technique using Reamer with Alternating Cutting Edges (RaCe) system files in the apical third of mesial roots of mandibular molars. Materials and Methods: Twenty teeth were selected and separated into two groups (n = 20) according to instrumentation technique as follows: BioRaCe - chemomechanical preparation with K-type files #10 and #15; and files BioRaCe BR0, BR1, BR2, BR3, and BR4; HybTec - hybrid instrumentation technique with K-type files #10 and #15 in the working length, #20 at 2 mm, #25 at 3 mm, cervical preparation with Largo burs #1 and #2; apical preparation with K-type files #15, #20, and #25 and RaCe files #25.04 and #30.04. The root canals were irrigated with 1 ml of 2.5% sodium hypochlorite at each change of instrument. The specimens were histologically processed and photographed under light optical microscope. The images were inserted onto an integration grid to count the amount of debris present in the root canal. Results: BioRaCe presented the highest percentage of debris in the apical third, however, with no statistically significant difference for HybTec (P > 0.05). Conclusions: The hybrid technique presented similar cleaning capacity as the technique recommended by the manufacturer.
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Affiliation(s)
| | - Tiago Silva da Fonseca
- Department of Restorative Dentistry, Araraquara School of Dentistry, University of São Paulo State, Araraquara, Brazil
| | - Matheus Franco da Frota
- Department of Restorative Dentistry, Araraquara School of Dentistry, University of São Paulo State, Araraquara, Brazil
| | | | | | - Lucas da Fonseca Roberti Garcia
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil
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Vinhorte MC, Suzuki EH, de Carvalho MS, Marques AAF, Sponchiado Júnior EC, Garcia LDFR. Effect of passive ultrasonic agitation during final irrigation on cleaning capacity of hybrid instrumentation. Restor Dent Endod 2014; 39:104-8. [PMID: 24790922 PMCID: PMC3978099 DOI: 10.5395/rde.2014.39.2.104] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 01/17/2014] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES To evaluate the effect of passive ultrasonic agitation on the cleaning capacity of a hybrid instrumentation technique. MATERIALS AND METHODS Twenty mandibular incisors with mesiodistal-flattened root shape had their crowns sectioned at 1 mm from the cementoenamel junction. Instrumentation was initiated by catheterization with K-type files (Denstply Maillefer) #10, #15, and #20 at 3 mm from the working length. Cervical preparation was performed with Largo bur #1 (Dentsply Maillefer) followed by apical instrumentation with K-type files #15, #20 and #25, and finishing with ProTaper F2 file (Denstply Maillefer). All files were used up to the working length under irrigation with 1 mL of 2.5% sodium hypochlorite (Biodynâmica) at each instrument change. At the end of instrumentation, the roots were randomly separated into 2 groups (n = 10). All specimens received final irrigation with 1 mL of 2.5% sodium hypochlorite. The solution remained in the root canals in Group 1 for one minute; and ultrasonic agitation was performed in Group 2 for one minute using a straight tip inserted at 1 mm from working length. The specimens were processed histologically and the sections were analyzed under optic microscope (×64) to quantify debris present in the root canal. RESULTS The samples submitted to ultrasonic agitation (Group 2) presented significant decrease in the amount of debris in comparison with those of Group 1 (p < 0.05). CONCLUSIONS The hybrid instrumentation technique associated with passive ultrasonic agitation promoted greater debris removal in the apical third of the root canals.
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Affiliation(s)
| | - Eduardo Hideki Suzuki
- Department of Endodontics, School of Dentistry, Amazonas State University, Manaus, AM, Brazil
| | - Maíra Sousa de Carvalho
- Department of Endodontics, School of Dentistry, Federal University of Amazonas, Manaus, AM, Brazil
| | | | | | - Lucas da Fonseca Roberti Garcia
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil
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De Castro PHDF, Pereira JV, Sponchiado EC, Marques AAF, Garcia LDFR. Evaluation of marginal leakage of different temporary restorative materials in Endodontics. Contemp Clin Dent 2014; 4:472-5. [PMID: 24403791 PMCID: PMC3883326 DOI: 10.4103/0976-237x.123045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Aim: The aim of this study is to assess the coronal marginal leakage of three temporary restorative materials used for root canal sealing after endodontic treatment. Materials and Methods: A total of 88 single-rooted teeth were submitted to biomechanical preparation and filled by lateral condensation technique. After obturation process, the teeth were randomly separated into four groups, being two teeth of each group used as positive and negative control. Temporary sealing was performed as follows: GI - Clip F (VOCO); GII - Bioplic (Biodinβmica); GIII - Vitremer (3M ESPE) and GIV - Ketak N100 (3M ESPE). Next, the specimens were immersed into Indian ink for 30 and 60- days, being 10 specimens for each time interval and then submitted to diaphanization to verify the amount of coronal leakage using a measuring microscope. Results: Leakage mean values within the 30-day period were as follows: Vitremer (0.3 mm), Ketak N100 and Clip F (0.6 mm) and Bioplic (1.7 mm). Within the 60-day period, leakage means were 1.1 mm, 1.5 mm, 2.2 mm and 2.6 mm, respectively. Conclusions: None of the materials was capable of preventing marginal leakage within the 30- and 60-day period. In both time intervals, Bioplic presented the highest mean of leakage and Vitremer the lowest.
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Affiliation(s)
| | - Juliana Vianna Pereira
- Department of Endodontics, School of Dentistry, Federal University of Amazonas, Manaus, AM, Brazil
| | - Emilio Carlos Sponchiado
- Department of Endodontics, School of Dentistry, Federal University of Amazonas, Manaus, AM, Brazil
| | | | - Lucas Da Fonseca Roberti Garcia
- Department of Dental Materials and Prosthodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil
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da Frota MF, Filho IB, Berbert FLCV, Sponchiado EC, Marques AAF, Garcia LDFR. Cleaning capacity promoted by motor-driven or manual instrumentation using ProTaper Universal system: Histological analysis. J Conserv Dent 2013; 16:79-82. [PMID: 23349583 PMCID: PMC3548353 DOI: 10.4103/0972-0707.105305] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 05/05/2012] [Accepted: 05/23/2012] [Indexed: 11/30/2022] Open
Abstract
Aim: The aim of this study was to assess the cleaning capacity of the Protaper system using motor-driven or manual instrumentation. Materials and Methods: Ten mandibular molars were randomly separated into 2 groups (n = 5) according to the type of instrumentation performed, as follows: Group 1 - instrumentation with rotary nickel-titanium (Ni-Ti) files using ProTaper Universal System (Dentsply/Maillefer); and, Group 2 - instrumentation with Ni-Ti hand files using ProTaper Universal (Dentsply-Maillefer). Afterwards, the teeth were sectioned transversely and submitted to histotechnical processing to obtain histological sections for microscopic evaluation. The images were analyzed by the Corel Photo-Paint X5 program (Corel Corporation) using an integration grid superimposed on the image. Results: Statistical analysis (U-Mann-Whitney - P < 0.05) demonstrated that G1 presented higher cleaning capacity when compared to G2. Conclusions: The rotary technique presented better cleaning results in the apical third of the root canal system when compared to the manual technique.
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Affiliation(s)
- Matheus Franco da Frota
- Department of Restorative Dentistry, Araraquara School of Dentistry, State University of São Paulo, Araraquara, SP, Brazil
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