Group ii gutta percha removal carried out with protaper universal retreatment files. Efficacy of 3 techniques in removing root canal filling material. It has been advocated 17 that the use of rotary devices in endodontic retreatment should be followed by hand instrumentation to achieve optimal cleanliness of root canal walls. Removal of gutta percha from root canals using an nd. The mount of residual filling material on the canal walls as imaged and measured using image. The purpose of this study was to assess in vitro the efficacy of nickeltitanium k 3 rotary files and hand files for removal of gutta percha and sealer from obturated root canals using either chloroform or chlorhexidine as solvents. Removal of guttapercha was performed with the following devices and techniques. Efficacy of protaper and mtwo retreatment files in removal. Nov 20, 2014 files were wiped regularly using gauze to remove obturation materials and debris. In brief, d1, d2 and d3 instruments were sequentially used in a crowndown manner. Pdf efficacy of three different rotary files to remove. When endodontic retreatment is performed, irritants in the form of filling materials, necrotic pulp, bacteria or irrigant might be introduced into the apical region. For all removal techniques, specimens obturated with gutta percha ah plus showed significantly more remnants of obturation material than specimens filled with resilonepiphany for both straight and curved canals p removal time was shorter for resilonepiphany than gutta percha ah plus filling for all techniques and for both.
Protaper retreatment protaper r dentsply maillefer, baillagues, switzerland and mtwo retreatment mtwo r vdw, munich, germany files are two niti systems which have been designed for gutta percha removal. A nonsurgical technique for the removal of overextended. Guttapercha removal can be achieved by several techniques, one of which is the manual use of endodontic hand files, e. Pdf in vitro comparison of guttapercha removal with h.
Gutta percha removal, nickel titanium, root canal retreatment, rotary instruments. In vitro study viducic d, jukic s, karlovic z, et al. Material and methods forty mesial roots of mandibular molars with two curved canals and 80 single. Protaper universal retreatment files root fillings were removed with protaper universal retreatment instruments following the manufacturers instruction. Gpr realizes quick, easy, and efficient gutta percha removal during root canal retreatment. International endodontic journal, 34, 267274, 2001. With the canals filled with chloroform bath then paper points are utilized to wick residual gutta percha and sealers from the more inaccessible regions of the root canal system. Pdf evaluation of four guttapercha removal techniques for. In vitro comparison of guttapercha removal with hfile.
Jun 01, 2016 the aim of the study was to evaluate and compare the effective removal of gutta percha and sealer from the root canals, amount of apical debris extrusion and the time required for gutta percha removal using various endodontic files. This might be explained due to more amount of gutta percha in the coronal third and the difference between the. Efficacy of protaper universal, r endo, peezo reamer on. Remembering that thermafil carriers are surrounded by gutta percha refer back to figure 1 we can start with very small size 6 or 8 c files and a. Yl ng, k gulabivala, in endodontics fourth edition, 2014. Wellcondensed gutta percha is a different prospect and requires creation of space to insert hedstroem files to engage the bulk. Reciproc, manual files, guttapercha solvents, xylol. Barrieshinusair reported niti rotary removal of gutta percha for retreatment. This column was written to describe the steps commonly used for gp removal in endodontic retreatment with a focus on the mani gp removal gpr instruments figure 1. Autofit greater taper gutta percha developed by dr. Once both files have a grip on the core, braid them together by twisting the handles to tighten the hold on the core. Methodology fortyeight human root canals with curvatures ranging between 25 and 45 were instru. Removal of gp is generally accomplished by the use of heat, hedstrom files, gp solvents, and rotary gp removal instruments.
Research article gutta percha solvents alternative to chloroform. Review removal of guttapercha with hand files, xylol and reciproc. With the core removed, the remainder of the canal is simply gutta percha and may be filed out in the conventional manner. The design of the flutes of the hedstrom files also facilitates guttapercha removal. Then, each gutta percha point was immersed for 1 minute into the solvent of the group it had been assigned figure 1. Aim the purpose of this study was to compare the efficacy in vitro of guttapercha removal from obturated root canals using profiles. Outlines a staged approach in removing guttapercha from obturated root canals familiarises practitioners to gates glidden burs, hedstrom files, kfiles and endodontic solvents and the design features that make them ideal for guttapercha removal. Pro taper rotary files have proven their efficiency in removing guttapercha because of the association of the solvent with the instrument. Efficacy of three different instruments for guttapercha. Introduction removal of root filling materials is one of the key steps in success of root canal retreatment. Removal of gutta percha from root canals using the selfadjusting file. To continue, please remove any product not selected as smartsupply from your cart. Do not use a cleaner handpiece cartridge heater if gutta percha gets into the cartridge heater section of the handpiece, turn on the unit. Chloroform rapidly softens gutta percha and, in conjunction with files, allows for the removal of gutta percha.
Retreatment was performed with the following techniques. The removal procedure of guttapercha is the same for any type of obturation technique and i have listed the various types in which gutta percha is removal from a failed root canal treated tooth. Chloroform rapidly softens gutta percha and, in conjunction with files, allows for the removal of gutta percha in a crowndown manner. Effectiveness of rotary and hand files in guttapercha and sealer removal using chloroform. Conclusions none of the instruments were able to remove the filling material completely from root canal. Hedstrom files vereinigte dentalwerke, munich, germany, protaper dentsply maillefer, ballaigues, switzerland. Sixty extracted singlerooted bovine teeth with straight, large canals were prepared, obtured and randomly assigned to 3 groups n20. Engine reamers extraordinarily sharp and mirrorlike finished edges with high ductility make for excellent working characteristics. The hyflex rotary files group iii was significantly least effective in removing gutta percha.
The customer or the user of the obtura iii max heated gutta percha system should assure that it is used in. Files, nickel titanium rotary 190 post removal systems 1 pulp testers 1. A red hot 57 heater plugger was used to remove gutta percha and sealer from the canals. Protaper universal retreatment system and mtwo retreatment files were more efficient and faster compared to nrt gpr fles and hedstrom files. Gutta percha removal can be achieved by several techniques, one of which is the manual use of endodontic hand files, e.
Efficacy of different methods for removing root canal filling. Then, push the return button and allow the indicator to completely retract. Both autofit and standard gutta percha cones fit seamlessly into a gutta percha wheel. Instruments and techniques used in removal of gutta percha. Other methods of gutta percha removal include removing the coronal portion of gutta percha using gates glidden or heat pluggers 3, and the rest by an ultrasonic technique 4. Size the instrument, referring to a radiograph of the tooth and pick the smallest drill size that will remove all the gutta percha at the most apical position you want to remove material from. The removal of gutta percha using rotary instruments in the retreatment process have decreased the chairside clinical time. In group 1 quantec sc rotary instruments were used for filling removal and in group 2, hand files and solvent. Clearly, it would be interesting to combine rotary and hand instruments. The purpose of this study was to evaluate the efficacy of h file and protaper with or without chloroform in the removal of gutta percha during retreatment of mandibular premolars.
Removal of guttapercha from root canals using the self. Gutta percha points 462 hedstrom files 197 impression syringes 1. Efficacy of different rotary instruments for gutta percha removal in root canal retreatment. Time required to remove guttacore, thermafil plus, and thermoplasticized gutta percha from moderately curved root canals with protaper files joe january 20 volume 39, issue 1, pages 125128 a novel carrierbased obturation system, guttacore, was developed to facilitate more efficient nonsurgical retreatments. Protaper universal retreatment files root fillings were removed with protaper universal retreatment instruments following the. In addition, a portion of gutta percha was found spilled in the periradicular tissues. Removal of root filling materials is one of the key steps in success of root canal retreatment. A comparison of three guttapercha obturation techniques. Endosequence gutta percha paper point assortment wheel gp. Pdf in vitro comparison of guttapercha removal with hfile. Efficacy of three different rotary files to remove gutta.
The purpose of this study was to compare the efficacy in vitro of gutta. Removal of gutta percha gp is a critical step in endodontic retreatment. Gates glidden burs, hedstrom files, kfiles and endodontic solvents and the design features that make them ideal for guttapercha removal. Maximum amount of gutta percha was found at coronal third and least in apical third of the root canal in all the groups. The oot fillings were removed using chloroform and two ifferent rotary systems k3 and liberator files.
This was repeated until no more than 2 mm of the spreader could be advanced into the canal. A comparative evaluation of gutta percha removal and. Efficacy of 3 techniques in removing root canal filling. Familiarises practitioners to gates glidden burs, hedstrom files, k files and endodontic solvents and the design features that make them ideal for gutta percha removal. Efficacy of protaper universal, r endo, peezo reamer on gutta. Used with the same technique as other constant taper 04 and 06 files so you can smoothly transition to the. Effectiveness of rotary and hand files in guttapercha and sealer. Nov 24, 2015 removal of gutta percha gp is a critical step in endodontic retreatment.
Efficacy of protaper and mtwo retreatment files in removal of. Endodontic rotary instrumentsdental instrumentsproduct. Kerr endodontics radiopaque gutta percha is the timeproven fill for root canal therapies. Various methods are used to remove the filling material. How can i safely and efficiently remove gutta percha to. A practitioners guide to guttapercha removal during endodontic. A nonsurgical technique for the removal of overextended guttapercha the journal of contemporary dental practice, marchapril 2012. The aim of the study was to evaluate and compare the effective removal of gutta percha and sealer from the root canals, amount of apical debris extrusion and the time required for gutta percha removal using various endodontic files.
Wellcondensed guttapercha is a different prospect and requires. Efficacy of three different rotary files to remove gutta percha and resilon from root canals. It is a polymer of isoprene which forms a rubberlike elastomer. Hand or rotary files must be used to complete the removal of the material. Efficacy of gutta percha solvents used in endodontic retreatments recorded considering four decimal places after the decimal point to identify the baseline weights of each specimen prior to the solvent action.
The technique for removing a carrier core obturator or gutta percha alone is the same. For the removal of dentin, shaping and obturating of the root canal. Poorly condensed guttapercha root fillings in teeth requiring retreatment can be easily removed by threading hedstroem files into existing spaces to engage the guttapercha, which may then be pulled out with the file. Efficacy of different methods for removing root canal. Review removal of guttapercha with hand files, xylol and. A comparative evaluation of guttapercha removal by various. Operatorsmanual heated gutta percha system guidance and manufacturers declaration electromagnetic immunity the obtura iii max heated gutta percha system is intended for use in the electromagnetic environment specified below. Removal of obturation materials linkedin slideshare. The use of stainless steel hand files resulted in a lesser amount of filling debris than the use of nickeltitanium rotary instrume nts. The aim of this study was to examine two characteristics associated with the use of two solvents, to assist the removal of gutta percha. In the current study, the area of remaining gutta percha after retreatment with protaper files is in accordance with previous studies 3, 4.
To successfully obturate this case, the first master cone of gutta percha was placed into the bifurcation and then burned down with a systemb sybronendo to within. Protaper universal retreatment files are designed to remove filling materials, such as gutta percha, carriers and paste fillers, prior to reshaping procedures. Pdf removal of guttapercha from root canals using the. Efficacy of protaper and mtwo retreatment files in removal of gutta percha and guttaflow from root canals sedigheh khedmat a, abbas azari b, ahmad reza shamshiri c, mehdi fadae d, hoorieh bashizadeh fakhar e a dental research center, department of endodontics, dental school, tehran university of medical sciences and iranian center for endodontic research.
The results show that the effect of saf on removing gutta percha. Endodontic pathologies include inflammatory and infectious processes associated with bacteria, fungi and viruses, as well as a percent. Saf contacts more root canal walls as compared with other files and thus would potentially be more effective in the removal of gutta percha. International endodontic journal, 41, 288295, 2008. Efficacy of protaper universal rotary retreatment system for.
Using gutta percha solvents to remove the remaining material in the apica part of the canal. Quantec sc rotary instruments versus hand files for gutta. Conventionally, the removal of gutta percha using hand files with or without solvent can be a tedious, time consuming process especially when the root filling material is well compacted. Efficacy of different solvents in removing guttapercha from. The aim of the present study was to compare the guttapercha removal with protaper retreatment files dentsply maillefer, ballaigues. Efficacy of guttapercha solvents used in endodontic. Materials and methods sixty mandibular premolars with one canal, and curvatures less. Further investigation required to proving safety and efficacy of laser during gutta percha removal.
Pdf in vitro evaluation of efficacy of different rotary. This column was written to describe the steps commonly used for gp removal in endodontic retreatment with a focus on the mani gp removal gpr. The only way to get multiple files alongside the carrier is to use the dissolution properties of gutta percha to soften the gutta percha so that the files can be moved apically on more than one side. Prior to using a nonend cutting drill, create an adequately sized hole in the surface of the gutta percha with either an explorer or a small round bur. Schirrmeister jf, wrbas kt, meyer km, altenburger mj, hellwig e. To better replicate the apical defect, a smaller size gutta percha cone was used to allow room for the spreader. Gutta percha removal was judged to be complete when a size 20 kfile reached the working length in each specimen and no more gutta percha could be seen in the last instrument used in each group. The conventional removal of gutta percha using hand files is a tedious procedure.
M file and achieve the same results at half the cost. In vitro comparison of guttapercha removal with h file and protaper with or without chloroform article pdf available in iranian endodontic journal 81. Greater taper cones are designed to match canals shaped with greater taper. Upon gutta percha removal, the separated file around the curve was already visible in the mesiobuccal canal under the microscope as shown in figure 6b, and the preparation for separated file removal was commenced using the prototype ultrasonic tip as described previously in the instrument removal method section. Gutta percha removal from root canal can be done by the following methods and instruments. Gutta percha refers both to trees of the genus palaquium in the family sapotaceae and the rigid, naturally biologically inert, resilient, electrically nonconductive, thermoplastic latex produced from the sap of these trees, particularly from palaquium gutta. On removal of the gutta percha using a combination of gates glidden burs and rotary nickel titanium files, it was discovered that there was an apical bifurcation of the canal. Enlarge the cervical portion of the canal prepare the canal entrance remove gutta percha for post space notched for easy size identification can be used in any rightangle hand piece available in standard 32 mm and short 28 mm lengths sold in packs of 6. Certainly, hand files in the presence of a chemical, such as chloroform, is another important method to remove gutta percha from smaller and more curved canals. Pdf removal of guttapercha from the root canals using three.
Review removal of guttapercha with hand files, xylol and reciproc introduction the system of root canals has a complex anatomy that must be chemically and mechanically prepared before obturation. In vitro comparison of guttapercha removal with hfile and protaper with or without chloroform article pdf available in iranian endodontic journal 81. Removal of obturation materials advanced endodontics. Poorly condensed gutta percha root fillings in teeth requiring retreatment can be easily removed by threading hedstroem files into existing spaces to engage the gutta percha, which may then be pulled out with the file. Endosequence gutta percha paper point assortment wheel gppp 1560. Aim the purpose of this study was to compare the efficacy in vitro of gutta percha removal from obturated root canals using profiles. An in vitro comparative evaluation alberto dagna, maria mirando, riccardo beltrami, marco chiesa, claudio poggio and marco colombo department of clinical, surgical, diagnostic and pediatric sciences section of dentistry, endodontic unit, university of pavia, italy. Stephen buchanan, autofit gutta percha is the latest innovation in filling materials. Efficacy of three different instruments for guttapercha removal in. Effectiveness of rotary and hand files in guttapercha and. This oven is intended for use in heating gutta percha coated obturators. Universal rotary retreatment system for guttapercha removal from root canals. Ruddle says,hedstroem displacement technique is useful, when the canal has been overextended vertically and underfilled laterally.
A practitioners guide to guttapercha removal during. Retreatment efficacy of different rotary instrument systems introduction 18 mm length, 0. The efficacy of guttapercha removal using profiles suffolk root. Ideal for simple straight canals and removing gutta percha.
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