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Sampaio RF, Carvalho CN, Bradaschia-Correa V, Gonçalves BLL, Arana-Chavez V, de Carvalho APL, Nogueira APA, Grazziotin-Soares R, Bauer J, Gavini G, Carvalho EM. Apical Sealing and Bioactivity of an Experimental Gutta-Percha Containing Niobium Phosphate Bioglass. Polymers (Basel) 2023; 15:polym15071679. [PMID: 37050293 PMCID: PMC10097297 DOI: 10.3390/polym15071679] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/18/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023] Open
Abstract
This study evaluated the apical sealing ability and bioactivity of an experimental gutta-percha containing niobium phosphate bioglass. Thirty-six human premolars were endodontically prepared and divided into three groups: GPC—filling with conventional gutta-percha; GBC—filling with bioceramic gutta-percha (EndoSequence BC); GNB—filling with experimental gutta-percha containing niobophosphate. Teeth were stored in tubes containing 2 mL of simulated body fluid (SBF) solution in an oven for 30 days. Then, the samples were immersed in lanthanum nitrate solution and analyzed for apical nanoleakage (NI) with a scanning electron microscope (SEM/EDS) and transmission electron microscope (TEM). Gutta-percha specimens were immersed for 28 days (SBF) and analyzed in SEM/EDS and X-ray diffraction (XRD) to assess bioactivity. NI data originated from the SEM/EDS were analyzed using the Kruskal–Wallis test (α = 5%). NI data originated from TEM and bioactivity were descriptively reported. Statistical analysis did not detect a significant difference between groups (p = 0.13) for NI. In the bioactivity analysis, an abundant layer of hydroxyapatite was identified only in the surface of the GNB group samples. The gutta-percha containing niobophosphate bioglass promoted an apical sealing similar to EndoSequence BC, in addition to demonstrating bioactivity through the deposition of hydroxyapatite on the surface of the material after immersion in SBF.
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Affiliation(s)
- Ruan Ferreira Sampaio
- Dentistry Postgraduate Program, University Ceuma, R. Josué Montello, 1, Renascença II, São Luís 65075-120, Brazil
| | - Ceci Nunes Carvalho
- Dentistry Postgraduate Program, University Ceuma, R. Josué Montello, 1, Renascença II, São Luís 65075-120, Brazil
| | | | - Bruna Laís Lins Gonçalves
- Dentistry Postgraduate Program, University Ceuma, R. Josué Montello, 1, Renascença II, São Luís 65075-120, Brazil
| | - Victor Arana-Chavez
- Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo (FOUSP), Av. Prof Lineu Prestes, 2227, São Paulo 05508-000, Brazil
| | - Alexandre P. Lima de Carvalho
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo (FOUSP), Av. Prof Lineu Prestes, 2227, São Paulo 05508-000, Brazil
| | - Amanda Palmeira Arruda Nogueira
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), Av. dos Portugueses, 1966, São Luís 65080-805, Brazil
| | - Renata Grazziotin-Soares
- Endodontics Division, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia (UBC), Vancouver, BC V6T 1Z4, Canada
| | - José Bauer
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), Av. dos Portugueses, 1966, São Luís 65080-805, Brazil
| | - Giulio Gavini
- Department of Restorative Dentistry, School of Dentistry, University of São Paulo (FOUSP), Av. Prof Lineu Prestes, 2227, São Paulo 05508-000, Brazil
| | - Edilausson Moreno Carvalho
- Dentistry Postgraduate Program, University Ceuma, R. Josué Montello, 1, Renascença II, São Luís 65075-120, Brazil
- Correspondence: ; Tel.:+55-(98)-4020-7525
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Lotfi M, Ghasemi N, Rahimi S, Vosoughhosseini S, Saghiri MA, Shahidi A. Resilon: a comprehensive literature review. J Dent Res Dent Clin Dent Prospects 2013; 7:119-30. [PMID: 24082982 PMCID: PMC3779370 DOI: 10.5681/joddd.2013.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 03/23/2013] [Indexed: 11/17/2022] Open
Abstract
Background and aims. An ideal root canal filling material should completely seal the entire root canal space and block communication between the root canal system and its surrounding tissues; it should also be nontoxic, noncarcinogenic, non-genotoxic, biocompatible, insoluble in tissue fluids and dimensionally stable. Bonding to dentin is a promising property, which can prevent leakage and improve the sealing ability of root canal filling materials. Resilon was developed and rec-ommended initially because the existing rootcanal filling materials did not bond to root canal dentin. Since its introduction in 2004, numerous reports have been published regarding various aspects of this material. The aim of this literature review is to present investigations regarding Resilon's physical and chemical properties and leakage studies. Materials and methods. A review of the literature was performed by using electronic and hand searching methods for Resilon from May 2004 to April 2012. Results. There are many published reports regarding Resilon. The searchshowed that Resilon is composed of a parent polymer, polycaprolactone or Tone, which is a biodegradable aliphatic polyester, with filler particles consisting of bioactive glass, bismuth oxychloride and barium sulfate. It possesses some antibacterial and antifungal properties. It is a promising material for root canal filling. Despite the presence of numerous case reports and case series regarding these applications, there are few designed research studies on clinical applications of this material. Resilon has some drawbacks such as high cost. Conclusion. Resilon seals well and is a biocompatible material. However, more clinical studies are needed to confirm its efficacy compared with other materials.
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Affiliation(s)
- Mehrdad Lotfi
- Professor, Department of Endodontic, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Negin Ghasemi
- Postgraduate Student, Department of Endodontic, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Rahimi
- Professor, Department of Endodontic, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
- Dental and Periodontal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Vosoughhosseini
- Associate Professor, Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Ali Saghiri
- Research Associated, Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public health, Madison, WI, USA
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Souza SDFC, Francci C, Bombana AC, Kenshima S, Barroso LP, D'Agostino LZ, Loguercio AD. Qualitative SEM/EDS analysis of microleakage and apical gap formation of adhesive root-filling materials. J Appl Oral Sci 2013; 20:329-34. [PMID: 22858699 PMCID: PMC3881782 DOI: 10.1590/s1678-77572012000300006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2010] [Accepted: 09/15/2011] [Indexed: 11/24/2022] Open
Abstract
Objective The aim of this study was to compare the correspondence between gap formation and
apical microleakage in root canals filled with epoxy resin-based (AH Plus)
combined or not with resinous primer or with a dimethacrylate-based root canal
sealer (Epiphany). Material and Methods Thirty-nine lower single-rooted human premolars were filled by the lateral
condensation technique (LC) and immersed in a 50-wt% aqueous silver nitrate
solution at 37ºC (24 h). After longitudinal sectioning, epoxy resin
replicas were made from the tooth specimens. Both the replicas and the specimens
were prepared for scanning electron microscopy (SEM). The gaps were observed in
the replicas. Apical microleakage was detected in the specimens by SEM/energy
dispersive spectroscopy (SEM/EDS). The data were analyzed statistically using an
Ordinal Logistic Regression model and Analysis of Correspondence (α=0.05).
Results Epiphany presented more regions containing gaps between dentin and sealer
(p<0.05). There was correspondence between the presence of gaps and
microleakage (p<0.05). Microleakage was similar among the root-filling
materials (p>0.05). Conclusions The resinous primer did not improve the sealing ability of AH Plus sealer and the
presence of gaps had an effect on apical microleakage for all materials.
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Stoetzer M, Ruecker M, Koch A, Ziebolz D, Kokemüller H, Kaempf C, Gellrich NC, von See C. In Vitro Effects of External Pressure Changes on the Sealing Ability under Simulated Diving Conditions. ISRN DENTISTRY 2012; 2012:418609. [PMID: 23119172 PMCID: PMC3478745 DOI: 10.5402/2012/418609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Accepted: 09/10/2012] [Indexed: 11/29/2022]
Abstract
Aim. To measure and validate the permeability of pressure changes in correlation to different root filling techniques. Methods. Eighty extracted single-rooted teeth were randomly assigned to one of eight groups of ten teeth. Following standardized instrumentation and irrigation, root canal fillings were performed using either cold lateral condensation, a warm carrier-based gutta-percha obturation technique, a warm carrier-based Resilon, or warm gutta-percha compaction with the downpack/backfill technique. After insertion of a pressure sensor within the pulp chamber ten teeth of each group then underwent simulated dives with pressure measurement and the other ten a dye penetration test during simulated dives to 5.0 bar. Differences were analyzed statistically (P < 0.05) using one-way analysis of variance (ANOVA). Results. When the warm carrier-based gutta-percha obturation technique and vertical gutta-percha obturation techniques were used, there was significant lower intrapulpal pressure to experimental chamber pressure (P > 0.05). When cold lateral condensation or carrier-based Resilon as used, pressure was sometimes almost completely equalized. Conclusions. Warm gutta-percha obturation techniques provide a largely pressure-tight seal whereas the Resilon obturation technique and cold lateral condensation appear to be unsuitable to pressure changes.
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Affiliation(s)
- Marcus Stoetzer
- Department of Oral and Maxillofacial Surgery, Hanover Medical School, 30625 Hannover, Germany
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Dennison JB, Sarrett DC. Prediction and diagnosis of clinical outcomes affecting restoration margins. J Oral Rehabil 2011; 39:301-18. [PMID: 22066463 DOI: 10.1111/j.1365-2842.2011.02267.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The longevity of dental restorations is largely dependent on the continuity at the interface between the restorative material and adjacent tooth structure (the restoration margin). Clinical decisions on restoration repair or replacement are usually based upon the weakest point along that margin interface. Physical properties of a restorative material, such as polymerisation shrinkage, water sorption, solubility, elastic modulus and shear strength, all have an effect on stress distribution and can significantly affect margin integrity. This review will focus on two aspects of margin deterioration in the oral environment: the in vitro testing of margin seal using emersion techniques to simulate the oral environment and to predict clinical margin failure and the relationship between clinically observable microleakage and secondary caries. The many variables associated with in vitro testing of marginal leakage and the interpretation of the data are presented in detail. The most recent studies of marginal leakage mirror earlier methodology and lack validity and reliability. The lack of standardised testing procedures makes it impossible to compare studies or to predict the clinical performance of adhesive materials. Continual repeated in vitro studies contribute little to the science in this area. Clinical evidence is cited to refute earlier conclusions that clinical microleakage (penetrating margin discoloration) leads to caries development and is an indication for restoration replacement. Margin defects, without visible evidence of soft dentin on the wall or base of the defect, should be monitored, repaired or resealed, in lieu of total restoration replacement.
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Affiliation(s)
- J B Dennison
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA.
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Onay EO, Orucoglu H, Kiremitci A, Korkmaz Y, Berk G. Effect of Er,Cr:YSGG laser irradiation on the apical sealing ability of AH Plus/gutta-percha and Hybrid Root Seal/Resilon Combinations. ACTA ACUST UNITED AC 2010; 110:657-64. [DOI: 10.1016/j.tripleo.2010.05.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2010] [Revised: 05/12/2010] [Accepted: 05/19/2010] [Indexed: 10/19/2022]
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Karapinar-Kazandağ M, Tanalp J, Bayrak OF, Sunay H, Bayirli G. Microleakage of various root filling systems by glucose filtration analysis. ACTA ACUST UNITED AC 2010; 109:e96-102. [PMID: 20417137 DOI: 10.1016/j.tripleo.2010.01.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Revised: 01/03/2010] [Accepted: 01/12/2010] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the microleakage of Resilon + Epiphany, EndoRez, Activ GP, and conventional AH Plus + gutta-percha technique using the glucose filtration model. STUDY DESIGN One hundred twenty maxillary incisors were divided into 5 experimental and 2 control groups. After root canal shaping, the experimental groups were filled with AH Plus + gutta-percha (lateral compaction), Resilon + Epiphany (lateral compaction), AH Plus + Protaper's proprietory cone, EndoRez + sealer, or Activ GP + sealer). The specimens were mounted on a glucose model and samples were taken for 3 weeks for leakage measurement. RESULTS No statistically significant difference was observed between the leakage of all groups at the 3 testing periods (P > .05). CONCLUSION The filling materials with the monoblock concept do not seem to be superior to the conventional AH Plus + gutta-percha system regarding microleakage.
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Critical Review on Methacrylate Resin–based Root Canal Sealers. J Endod 2010; 36:383-99. [DOI: 10.1016/j.joen.2009.10.023] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2009] [Revised: 10/13/2009] [Accepted: 10/18/2009] [Indexed: 10/20/2022]
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Restoration of endodontically treated teeth review and treatment recommendations. Int J Dent 2010; 2009:150251. [PMID: 20309408 PMCID: PMC2837471 DOI: 10.1155/2009/150251] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Accepted: 10/13/2009] [Indexed: 11/23/2022] Open
Abstract
Coronal restorations and posts can positively influence the long-term prognosis of teeth following root canal therapy. Final sealing the canal by
placing an appropriate post and core will minimize leakage of oral fluids and bacteria into the periradicular area and is recommended as soon as possible after completion of root canal filling. Glass ionomer or MTA placed over the residual root canal filling after post space preparation may be effective to prevent bacterial leakage. A ferrule of 1-2 mm of tooth tissue coronal to the finish line of the crown significantly improves the fracture resistance of the tooth and is more important than the type of the material the core and post are made of.
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