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Alves-Silva EG, Arruda-Vasconcelos R, Louzada LM, de-Jesus-Soares A, Ferraz CCR, de Almeida JFA, Marciano MA, Steiner-Oliveira C, Bello-Silva MS, Shemesh H, Paula Figueiredo de Almeida Gomes B. The effect of photodynamic therapy on postoperative pain in teeth with primary endodontic infection. Photodiagnosis Photodyn Ther 2021; 37:102700. [PMID: 34954090 DOI: 10.1016/j.pdpdt.2021.102700] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/10/2021] [Accepted: 12/20/2021] [Indexed: 12/29/2022]
Abstract
INTRODUCTION The objective of this study was to investigate the action of photodynamic therapy on pain control after endodontic treatment in asymptomatic teeth with a primary infection, within a single visit. METHODS Sixty (60) single-rooted teeth with pulp necrosis and periapical lesions were selected and randomly divided into two (2) groups (n=30), according to the protocol; a control group (CG) and a group using photodynamic therapy (aPDT). The canals were instrumented with Reciproc files # 25 up to 40 along the entire length of the canal, using 2% chlorhexidine gel as the auxiliary chemical substance, followed by irrigation with sterile saline. The canals were filled with Endomethasone N cement, 0.005% methylene blue, using AsGaAl diode laser, 660 nm wavelength, 100 mW of power and 9 J of energy, using optical fibers with 365 µm in diameter. RESULTS Pain intensity was assessed at 8, 12, 24, 48, 72 hours and 1 week after endodontic treatment using a visual analogue scale. The level of pain was classified as none (0), mild (1-3), moderate (4-7) or severe (8-10). The data were at a significance level of 5%. There was a statistically significant difference (p<0.05) in the periods of 8, 12, 24, 48 and 72 hours between the control group and the aPDT group. After 1 week, there was no statistically significant difference. CONCLUSIONS It is concluded that photodynamic therapy had a significant effect on decreasing post-endodontic treatment pain in teeth with necrotic pulp and asymptomatic periapical lesions.
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Affiliation(s)
- Esdras Gabriel Alves-Silva
- Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil.
| | - Rodrigo Arruda-Vasconcelos
- Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil.
| | - Lidiane Mendes Louzada
- Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil.
| | - Adriana de-Jesus-Soares
- Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil.
| | - Caio Cezar Randi Ferraz
- Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil.
| | - José Flávio Affonso de Almeida
- Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil.
| | - Marina Angélica Marciano
- Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil.
| | - Carolina Steiner-Oliveira
- Department of Health Sciences and Pediatric Dentistry, Piracicaba Dental School, University of Campinas - UNICAMP, Piracicaba, SP, Brazil.
| | - Marina Stella Bello-Silva
- Special Laboratory of Lasers in Dentistry (LELO), Department of Restorative Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil.
| | - Hagay Shemesh
- Department of Endodontology, Academic Centre for Dentistry of Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands..
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Apical Extrusion of Debris During Root Canal Preparation With Different Brands of ProTaper System. JOURNAL OF RESEARCH IN DENTAL AND MAXILLOFACIAL SCIENCES 2021. [DOI: 10.52547/jrdms.6.4.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Serefoglu B, Kandemir Demirci G, Miçooğulları Kurt S, Kaşıkçı Bilgi İ, Çalışkan MK. Impact of root canal curvature and instrument type on the amount of extruded debris during retreatment. Restor Dent Endod 2021; 46:e5. [PMID: 33680894 PMCID: PMC7906842 DOI: 10.5395/rde.2021.46.e5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/03/2020] [Accepted: 05/15/2020] [Indexed: 11/16/2022] Open
Abstract
Objectives The aim of the current study was to assess whether the amount of extruded debris differs for straight and severely curved root canals during retreatment using H-files, R-Endo, Reciproc and ProTaper Universal Retreatment (PTU-R) files. Additionally, the area of residual filling material was evaluated. Materials and Methods Severely curved (n = 104) and straight (n = 104) root canals of maxillary molar teeth were prepared with WaveOne Primary file and obturated with gutta-percha and AH Plus sealer. Root canal filling materials were removed with one of the preparation techniques: group 1: H-file; group 2: R-Endo; group 3: Reciproc; group 4: PTU-R (n = 26). The amount of extruded material and the area of the residual filling material was measured. The data were analyzed with 2-way analysis of variance (ANOVA) and 1-way ANOVA at the 0.05 significance level. Results Except for Reciproc group (p > 0.05), PTU-R, R-Endo, and H-file systems extruded significantly more debris in severely curved canals (p < 0.05). Each file system caused more residual filling material in severely curved canals than in straight ones (p < 0.05). Conclusions All instruments used in this study caused apical debris extrusion. Root canal curvature had an effect on extruded debris, except for Reciproc system. Clinicians should be aware that the difficult morphology of the severely curved root canals is a factor increasing the amount of extruded debris during the retreatment procedure.
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Affiliation(s)
- Burcu Serefoglu
- Department of Endodontics, Faculty of Dentistry, Ege University, Bornova, İzmir, Turkey
| | | | | | | | - Mehmet Kemal Çalışkan
- Department of Endodontics, Faculty of Dentistry, Ege University, Bornova, İzmir, Turkey
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KELEŞ A, Uzunoğlu Özyürek E, Uysal S, Tuncel B, Uyanik Ö, Nagaş E. Comparison of Apically Extruded Debris Associated with Different Nickel–Titanium Systems. CUMHURIYET DENTAL JOURNAL 2019. [DOI: 10.7126/cumudj.507866] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Karataslioglu E, Arslan H, Er G, Avci E. Influence of canal curvature on the amount of apically extruded debris determined by using three‐dimensional determination method. AUST ENDOD J 2018; 45:216-224. [DOI: 10.1111/aej.12311] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Emrah Karataslioglu
- Department of Endodontics Faculty of Dentistry İzmir Katip Çelebi University İzmir Turkey
| | - Hakan Arslan
- Department of Endodontics Faculty of Dentistry Atatürk University Erzurum Turkey
| | - Gamze Er
- Department of Endodontics Faculty of Dentistry İzmir Katip Çelebi University İzmir Turkey
| | - Ece Avci
- Department of Endodontics Faculty of Dentistry İzmir Katip Çelebi University İzmir Turkey
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Delvarani A, Mohammadzadeh Akhlaghi N, Aminirad R, Tour Savadkouhi S, Vahdati SA. In vitro Comparison of Apical Debris Extrusion Using Rotary and Reciprocating Systems in Severely Curved Root Canals. IRANIAN ENDODONTIC JOURNAL 2017; 12:34-37. [PMID: 28179921 PMCID: PMC5282376 DOI: 10.22037/iej.2017.07] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Introduction: The aim of this in vitro study was to compare the amount of apically extruded debris after root canal preparation using rotary and reciprocating systems in severely curved root canals. Methods and Materials: Thirty six extracted human mandibular first molars with 25-35° curvature in their mesiobuccal (MB) canal (according to Schneider’s method) were cleaned and shaped with ProTaper and WaveOne systems. The extruded debris was collected and their net weight was calculated. To compare the efficiency of the two systems, the operation time was also measured. The data were analyzed with t-test. Results: The amount of extruded debris in WaveOne group was significantly greater in comparison with ProTaper group (26%). The operating time for ProTaper was however, significantly longer than WaveOne. Conclusion: Both root preparation systems caused some degree of debris extrusion through the apical foramen. However, this amount was greater in WaveOne instruments.
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Affiliation(s)
- Abbas Delvarani
- Dental Material Research Center, Dental Branch, Azad University, Tehran, Iran
| | - Nahid Mohammadzadeh Akhlaghi
- Department of Endodontics, Cranio-maxillo-facial Research Center, Dental Branch, Islamic Azad University, Tehran, Iran
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Subbiya A, Cherkas PS, Vivekanandhan P, Geethapriya N, Malarvizhi D, Mitthra S. Effect of three different rotary instrumentation systems on postinstrumentation pain: A randomized clinical trial. J Conserv Dent 2017; 20:467-473. [PMID: 29430103 PMCID: PMC5799997 DOI: 10.4103/jcd.jcd_350_16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background: Endodontic instrumentation is liable to cause some postinstrumentation pain (PIP). Rotary endodontic instruments differ in their design, metallurgy, surface treatment, etc. Aim: This randomized clinical trial aimed to assess the incidence of PIP after root canal instrumentation with three different rotary endodontic systems which differ in their design, namely, ProTaper, Mtwo, and K3. Materials and Methods: A total of 150 patients between the ages of 25 and 50 were chosen for the study. Teeth with asymptomatic irreversible pulpitis due to carious exposure were selected. The patients received local anesthesia by inferior alveolar nerve block. After preparing the access cavity, root canal instrumentation was done with one of the three instruments (n = 50) and closed dressing was given. PIP was assessed every 12 h for 5 days, and tenderness to percussion was analyzed at the end of 1, 3, and 7 days. Statistical Analysis: Mann–Whitney U-test to determine significant differences at P < 0.01. Results: The PIP and tenderness were less in Mtwo group when compared to ProTaper and K3 groups up to 84 h and 72 h respectively and statistically significant (P < 0.05). There was no statistically significant difference between ProTaper and K3 both in PIP and tenderness. Conclusion: Rotary endodontic instrumentation causes some degree of PIP and tenderness to percussion. Among the instruments used, Mtwo causes less PIP and tenderness when compared to ProTaper and K3, and there was no difference between ProTaper and K3. Clinical Relevance: PIP is highly subjective and may vary among different subjects. The apical (3 mm) taper of ProTaper was 0.08 followed by a smaller taper, whereas, the other two files were of a constant 0.06 taper, which means there could have been a greater apical extrusion and therefore more PIP. Despite, the mean of the age was similar, there could have been a difference in the size of the canal and therefore a difference in apical extrusion and PIP.
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Affiliation(s)
- Arunajatesan Subbiya
- Department of Conservative Dentistry and Endodontics, Sree Balaji Dental College and Hospital, Bharath University, Chennai, Tamil Nadu, India
| | - Pavel S Cherkas
- Department of Oral Physiology and Endodontics, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Paramasivam Vivekanandhan
- Department of Conservative Dentistry and Endodontics, Sree Balaji Dental College and Hospital, Bharath University, Chennai, Tamil Nadu, India
| | - Nagarajan Geethapriya
- Department of Conservative Dentistry and Endodontics, Sree Balaji Dental College and Hospital, Bharath University, Chennai, Tamil Nadu, India
| | - Dhakshinamoorthy Malarvizhi
- Department of Conservative Dentistry and Endodontics, Sree Balaji Dental College and Hospital, Bharath University, Chennai, Tamil Nadu, India
| | - Suresh Mitthra
- Department of Conservative Dentistry and Endodontics, Sree Balaji Dental College and Hospital, Bharath University, Chennai, Tamil Nadu, India
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Kaşıkçı Bilgi İ, Köseler İ, Güneri P, Hülsmann M, Çalışkan MK. Efficiency and apical extrusion of debris: a comparative ex vivo
study of four retreatment techniques in severely curved root canals. Int Endod J 2016; 50:910-918. [DOI: 10.1111/iej.12708] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 09/30/2016] [Indexed: 11/26/2022]
Affiliation(s)
- İ. Kaşıkçı Bilgi
- Department of Endodontology; School of Dentistry; Ege University; İzmir Turkey
| | - İ. Köseler
- Department of Endodontology; School of Dentistry; Ege University; İzmir Turkey
| | - P. Güneri
- Department of Oral and Maxillofacial Radiology; School of Dentistry; Ege University; İzmir Turkey
| | - M. Hülsmann
- Department of Preventive Dentistry, Periodontology and Cariology; School of Dentistry; University of Göttingen; Göttingen Germany
| | - M. K. Çalışkan
- Department of Endodontology; School of Dentistry; Ege University; İzmir Turkey
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Soi S, Yadav S, Sharma S, Sharma M. In Vitro Comparison of Apically Extruded Debris during Root Canal Preparation of Mandibular Premolars with Manual and Rotary Instruments. J Dent Res Dent Clin Dent Prospects 2015; 9:131-7. [PMID: 26697144 PMCID: PMC4682008 DOI: 10.15171/joddd.2015.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 05/11/2015] [Indexed: 11/16/2022] Open
Abstract
Background and aims. During root canal
preparation, debris extruded beyond the apical foramen may result in
periapical inflammation and postoperative pain. To date no root canal
preparation method has been developed that extrudes no periapical
debris. The purpose of this study was to identify a system leading to
minimal extrusion of debris from the apical foramen. The study was
conducted to comparatively evaluate the amount of apical extrusion of
debris during root canal preparation using hand ProTaper and GT rotary
and RaCe rotary instruments using crown-down technique. Materials and methods.
Ninety freshly extracted human single-rooted mandibular premolars were
equally assigned to three groups (n=30). The root canals were
instrumented using hand ProTaper, GT rotary and RaCe rotary systems.
Debris and irrigant extruded from the apical foramen were collected into
vials. The mean weight of the remaining debris was calculated for each
group and subjected to statistical analysis. Results.
ANOVA was used to compare the mean dry weights of the debris extruded
in the three groups, followedby post hoc Tukey tests for multiple
comparisons the between groups. Highly significant differences were
found in the amount of debris extruded among all the groups
(P<0.001). The ProTaper group exhibited the highest mean debris
weight (0.8293±0.05433 mg) and the RaCe system exhibited the lowest mean
debris weight (0.1280±0.01606 mg). Conclusion. All
the systems tested resulted in apical extrusion of debris. However, the
hand ProTaper files extruded a significantly higher amount of debris
than GT and RaCe systems.
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Affiliation(s)
- Sonal Soi
- Reader, I.T.S Dental College, Hospital and Research Centre, Greater Noida, India
| | - Suman Yadav
- Professor, Department of Conservative Dentistry and Endodontics, Sri Guru Gobind Tricentenary Dental College, Research Center and Hospital, Gurgaon, India
| | - Sumeet Sharma
- Professor and Head of Department, Institute of Dental Studies and Technologies, Modinagar, India
| | - Mohit Sharma
- Reader, I.T.S Dental College, Hospital and Research Centre, Greater Noida, India
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Labbaf H, Shakeri L, Orduie R, Bastami F. Apical Extrusion of Debris after Canal Preparation with Hand-Files Used Manually or Installed on Reciprocating Air-Driven Handpiece in Straight and Curved Canals. IRANIAN ENDODONTIC JOURNAL 2015. [PMID: 26213538 PMCID: PMC4509123 DOI: 10.7508/iej.2015.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Introduction: Apical debris extrusion (DE) subsequent to root canal instrumentation, is one of the most important causes of endodontic flare-ups. The aim of this study was to compare the amount of DE after root canal instrumentation using nickel-titanium (NiTi) hand files with step-back manual technique or installed on reciprocating handpiece. Methods and Materials: This study was conducted on mesiobuccal (MB) roots of extracted maxillary first molars (n=20) and roots of mandibular premolars (n=20) that were randomly divided into two groups (n=20) according to the armamentarium used for canal preparation (air-driven reciprocating handpiece or hand instrumentation). In each group, the MB and premolar roots were prepared with the main apical sizes of 35 and 40, respectively. The extruded debris were collected and weighed. Finally, the mean dry weights were compared using ANOVA and t-test, and Tukey’s Multiple Comparisons Procedures were used to determine the significant differences in amounts of DE. The level of significance was set at 0.05. Results: Regardless of the type of teeth, the mean values of DE, were significantly lower in the handpiece group (P<0.0001). In addition, significantly lower amounts of DE was observed in premolars in similar group (P<0.001). However, this difference was not significant in MB roots of molars (P=0.20). Conclusion: Root canal preparation with reciprocating handpiece can lead to significantly lower debris extrusion than the manual step-back technique. In handpiece-prepared canals, the amount of extruded debris was significantly lower in premolar teeth.
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Affiliation(s)
- Hossein Labbaf
- Endodontic Department, Dental School, Shahed University, Tehran, Iran
| | | | - Reza Orduie
- Dental School, Shahed University, Tehran, Iran
| | - Farshid Bastami
- Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Chandrasekar, Ebenezar AVR, Kumar M, Sivakumar A. A comparative evaluation of gutta percha removal and extrusion of apical debris by rotary and hand files. J Clin Diagn Res 2015; 8:ZC110-4. [PMID: 25584299 DOI: 10.7860/jcdr/2014/10203.5199] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 10/20/2014] [Indexed: 11/24/2022]
Abstract
AIM The aim of this study was to evaluate the efficacy of Protaper retreatment files in comparison with RaCe, K3 and H-files for removal of gutta-percha and apically extruded debris using volumetric analysis. MATERIALS AND METHODS Forty extracted single rooted maxillary incisor teeth with straight canals and mature apices were selected for the study. After access cavity preparation, apical patency was confirmed with a size 10 K-file extending 1mm beyond the point at which it was first visible at the apical end. Working lengths were determined with the use of size 15 K-file. The canals were prepared in a step-back technique and the master apical file was size 30 for all teeth. 3% sodium hypochlorite was used as an irrigant after each instrumentation. Before final rinse, size 20 K-file was passed 1mm beyond the apex to remove any dentinal shaving plugs and maintain the apical patency. Then the canals were dried with paper points. The root canal was filled using standard gutta-percha points and zinc oxide eugenol sealer under lateral condensation technique. The teeth were then randomly divided into four groups of ten teeth each based on the instrument used for gutta percha removal. All the rotary instruments used in this study were rotated at 300rpm. The instruments used were: Group 1 - RaCe Files, Group 2 - ProTaper retreatment Files, Group 3 - K3 Files and Group 4 - H Files. The volume of the obturating material was calculated before and after removal using volumetric analysis with spiral CT. The removal efficacy with each instrument was calculated and statistically analysed. RESULTS The results of the study show that the ProTaper retreatment files (Group 2) (97.4%) showed the highest efficiency in the removal of obturating material, which was followed by RaCe (95.74%), K3 (92.86%) and H files (90.14%) with the efficiency in the decreasing order. Similarly the mean apical extrusion in H files (0.000 ± 0.002) was significantly lower than all the rotary instruments. However, the difference among the rotary files were not statistically significant (p>0.05). CONCLUSION ProTaper retreatment files show significant difference over other groups in removal of obturating material and can be the system of choice in endodontic retreatment procedures.
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Affiliation(s)
- Chandrasekar
- Lecturer, Department of Conservative Dentistry & Endodontics, JKK Dental College , Komarapalayam, Tamilnadu, India
| | - A V Rajesh Ebenezar
- Professsor, Department of Conservative Dentistry & Endodontics, Madha Dental College , Kundrathur, Chennai, Tamilnadu, India
| | - Mohan Kumar
- Professsor, Department of Conservative Dentistry & Endodontics, JKK Dental College , Komarapalayam, Tamilnadu, India
| | - A Sivakumar
- Principal and Professor, Department of Conservative Dentistry & Endodontics, JKK Dental College , Komarapalayam, Tamilnadu, India
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Corelation between machines assisted endodontic irrigant agitation and apical extrusion of debris and irrigant: a laboratory study. ScientificWorldJournal 2014; 2014:346184. [PMID: 25386593 PMCID: PMC4214052 DOI: 10.1155/2014/346184] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 08/29/2014] [Accepted: 08/29/2014] [Indexed: 12/22/2022] Open
Abstract
Aims. To compare amount of root canal debris and irrigant extruded apically after irrigants agitation using closed and open chambers. Methods and Material. Sixty maxillary central incisors were selected, decoronated, and mounted in preweighed glass vials filled with distilled water. Biomechanical preparation was completed using ProTaper rotary files until number F4 and 1 mL of 3% NaOCl solution after each file use. Samples were randomly divided into closed or open chamber sets which were further subdivided into 6 groups, based on the agitation techniques: no agitation (control), canalBrush, lentulospiral, passive ultrasonic agitation (PUA), EndoActivator, and EndoVac. Canals were irrigated with 1 mL of 17% EDTA and agitated for 30 s and then flushed with 2 mL of distilled water. Apically extruded irrigant was measured and vials were kept in incubator for 5 days at 68°C for drying for weight calculation. Statistical Analysis. Analysis was done using Student's t-test, one-way ANOVA, and post-hoc. Results. All agitation techniques showed apical extrusion of the debris and irrigant. The closed chamber apparatus showed significantly less extrusion of debris and irrigant than open chamber (P < 0.05). Conclusions. EndoVac was found to be the safest agitation system among all test groups with regard to apical extrusion of debris and irrigant.
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Uzunoglu E, Görduysus M. Apical extrusion of debris and irrigant using novel preparation systems. J Contemp Dent Pract 2014; 15:423-427. [PMID: 25576107 DOI: 10.5005/jp-journals-10024-1556] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM The aim of this in vitro study was to assess the amount of apically extruded debris and irrigant using Reciproc vs self-adjusting fle (SAF) and to investigate the effect, if any, of gravitational force via mandibular and maxillary positioning of the teeth. MATERIALS AND METHODS Forty human mandibular premolars were randomly assigned to four groups of 10 teeth each. The root canals were instrumented according to the manufacturers' instructions using the Reciproc and SAF. Sodium hypochlorite was used as the irrigant. The apically extruded debris was collected in pre-weighted glass vials using the Myers and Montgomery method, and teeth were placed in vials both in downward and upward positions. After drying, the mean weight of debris was assessed with a microbalance and statistically analyzed using two-way ANOVA with Bonferroni correction. RESULTS All instrumentation techniques and positions caused measurable apical extrusion of debris. A significant difference was observed according to position and instrument used (p < 0.05). The Reciproc extruded significantly more debris than SAF and vial downward position extruded significantly more debris than upward position (p < 0.05). CONCLUSION Under the conditions of this study, all systems caused apical debris extrusion, especially in the downward position. CLINICAL SIGNIFICANCE According to results of this study, the SAF was associated with less debris extrusion compared to the Reciproc in both mandibular and maxillary positions.
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Affiliation(s)
- Emel Uzunoglu
- Research Assistant, Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey, e-mail:
| | - Melahat Görduysus
- Professor, Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
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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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Tanalp J, Güngör T. Apical extrusion of debris: a literature review of an inherent occurrence during root canal treatment. Int Endod J 2013; 47:211-21. [DOI: 10.1111/iej.12137] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 05/03/2013] [Indexed: 11/28/2022]
Affiliation(s)
- J. Tanalp
- Department of Endodontics; Faculty of Dentistry; Yeditepe University; Istanbul Turkey
| | - T. Güngör
- Department of Endodontics; Faculty of Dentistry; Yeditepe University; Istanbul Turkey
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Caviedes-Bucheli J, Moreno JO, Carreño CP, Delgado R, Garcia DJ, Solano J, Diaz E, Munoz HR. The effect of single-file reciprocating systems on Substance P and Calcitonin gene-related peptide expression in human periodontal ligament. Int Endod J 2012; 46:419-26. [PMID: 23062064 DOI: 10.1111/iej.12005] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 09/05/2012] [Indexed: 11/30/2022]
Abstract
AIM To quantify the effect of two single-file reciprocating root canal preparation systems on Substance P (SP) and Calcitonin gene-related peptide (CGRP) expression in healthy human periodontal ligament (PDL). METHODOLOGY Forty PDL samples were obtained from healthy premolars where extraction was indicated for orthodontic reasons. Prior to extraction, 20 of these premolars were divided equally in two groups, and then, root canals were prepared using one of two different single-file systems: WaveOne and Reciproc. Ten premolars were prepared with hand files and served as a positive control group. The remaining 10 premolars where extracted without treatment and served as a negative control group. All PDL samples were processed, and SP and CGRP were measured by radioimmunoassay. RESULTS Greater SP and CGRP expression were found in the hand instrumentation group (1.220 pmol SP and 0.084 pmol CGRP per mg of PDL), followed by the WaveOne group (0.908 pmol SP and 0.046 pmol CGRP per mg of PDL) and the Reciproc group (0.511 pmol SP and 0.022 pmol CGRP per mg of PDL). The lower SP and CGRP values were associated with the intact control group (0.453 pmol SP and 0.018 pmol CGRP per mg of PDL). The Kruskal-Wallis test revealed significant differences between groups (P < 0.001). Post hoc Tukey HSD tests revealed significant differences in SP and CGRP expression between intact teeth in the control group and all the other groups (P < 0.001) except with the Reciproc group (P = 0.165 and P = 0.42 for SP and CGRP, respectively). Hand instrumentation was associated with significant differences with all the other groups (P < 0.001). Differences between the WaveOne and Reciproc groups were also significant (P < 0.001). CONCLUSION Substance P and CGRP expression in PDL cells increased when teeth were prepared with WaveOne as well as with hand instrumentation. Reciproc maintained SP and CGRP levels in line with the negative control group.
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Affiliation(s)
- J Caviedes-Bucheli
- School of Dentistry, Universidad Santo Tomas, Floridablanca Bucaramanga, Santander, Colombia.
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Borges MFDAE, Miranda CES, Silva SRCD, Marchesan M. Influence of apical enlargement in cleaning and extrusion in canals with mild and moderate curvatures. Braz Dent J 2012; 22:212-7. [PMID: 21915518 DOI: 10.1590/s0103-64402011000300006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Optical microscopy and morphometric analysis were used in this study to evaluate, in vitro, the cleaning of the apical region in root canals with mild or moderate curvatures subjected to biomechanical preparation with a rotary system, as well as to assess the amount of extruded material to the periapical area. Lateral incisors (n = 32), 16 with curvature angles smaller or equal to 10º (GI) and 16 between 11º and 25º angles (GII) were submitted to Hero 642 rotary instrumentation with different surgical diameters: (A) 30.02 and (B) 45.02. Irrigation was performed at each change of instrument with 5 mL of ultrapure Milli-Q water and the extruded material through the apical foramen was collected. Root cross-sections were subjected to histological analysis by optical microscopy (×40) and the images were evaluated morphometrically using the Image Tool software. Quantification of the extruded material was performed by weighing after liquid evaporation. ANOVA showed no statistically significant differences (p>0.05) among the groups with respect to the procedures used to clean the apical region. Considering the amount of extruded material, the Tukey's HSD showed that canals with mild curvature prepared with the 45.02 surgical diameter showed significantly higher values (p<0.05) that those of the other groups, which were similar between themselves (p>0.05). In conclusion, the effect of cleaning the apical region did not differ in the groups, considering root curvature and the surgical diameter of instruments used for apical preparation. The amount of extruded material was greater in canals with mild curvature that were prepared with the 45.02 surgical instrument diameter.
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Caviedes-Bucheli J, Azuero-Holguin MM, Gutierrez-Sanchez L, Higuerey-Bermudez F, Pereira-Nava V, Lombana N, Munoz HR. The effect of three different rotary instrumentation systems on substance P and calcitonin gene-related peptide expression in human periodontal ligament. J Endod 2010; 36:1938-42. [PMID: 21092809 DOI: 10.1016/j.joen.2010.08.043] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 08/21/2010] [Accepted: 08/25/2010] [Indexed: 10/18/2022]
Abstract
INTRODUCTION The purpose of this study was to quantify the effect of three different rotary root canal preparation systems on substance P and calcitonin gene-related peptide expression in healthy human periodontal ligament. METHODS Fifty periodontal ligament samples were obtained from healthy premolars in which extraction was indicated for orthodontic reasons. Before extraction, 40 of these premolars were equally divided into four groups, and root canals were prepared using four different systems: the ProTaper Universal rotary system, the RaCe rotary system, the Mtwo rotary system, and the hand instrumentation technique. The remaining 10 healthy premolars that were extracted without treatment served as a negative control group. All periodontal ligament samples were processed, and SP and CGRP were measured by radioimmunoassay. RESULTS Greater SP and CGRP expression were found in the ProTaper Universal group followed by the hand instrumentation group, the RaCe, and the Mtwo groups. The lower SP and CGRP values were for the negative control group. The Kruskal-Wallis test showed statistically significant differences between groups (p < 0.0001). Post hoc Least Significant Difference (LSD) tests showed statistically significant differences in SP and CGRP expression between the negative control group and all the other groups except the Mtwo group. Hand instrumentation also showed statistically significant differences with all the other groups, except the ProTaper Universal group. Differences between the three rotary systems were also statistically significant. CONCLUSION SP and CGRP expression in periodontal ligament increases when teeth are prepared with ProTaper Universal and RaCe rotary instrumentation systems as well as with hand instrumentation. Mtwo maintains SP and CGRP levels.
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Affiliation(s)
- Javier Caviedes-Bucheli
- Postgraduate Endodontics Department, School of Dentistry, Pontificia Universidad Javeriana, Bogotá, Colombia.
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