Gutta percha removal, nickel titanium, root canal retreatment, rotary instruments. Universal rotary retreatment system for guttapercha removal from root canals. How can i safely and efficiently remove gutta percha to. Pdf in vitro evaluation of efficacy of different rotary.
Review removal of guttapercha with hand files, xylol and reciproc. Retreatment efficacy of different rotary instrument systems introduction 18 mm length, 0. The oot fillings were removed using chloroform and two ifferent rotary systems k3 and liberator files. The technique for removing a carrier core obturator or gutta percha alone is the same. Mar, 2016 removal of gutta percha from root canals using an nd. Efficacy of protaper universal, r endo, peezo reamer on gutta.
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. Aim the purpose of this study was to compare the efficacy in vitro of gutta percha removal from obturated root canals using profiles. Protaper universal retreatment files root fillings were removed with protaper universal retreatment instruments following the. To continue, please remove any product not selected as smartsupply from your cart. Removal of obturation materials advanced endodontics. Ruddle says,hedstroem displacement technique is useful, when the canal has been overextended vertically and underfilled laterally. A comparative evaluation of gutta percha removal and. Schirrmeister jf, wrbas kt, meyer km, altenburger mj, hellwig e. The hyflex rotary files group iii was significantly least effective in removing gutta percha.
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. Gutta percha points 462 hedstrom files 197 impression syringes 1. Files, nickel titanium rotary 190 post removal systems 1 pulp testers 1. Quantec sc rotary instruments versus hand files for gutta. Heating endodontic carrier to remove the coronal part avoid over heat. Effectiveness of rotary and hand files in guttapercha and sealer. Various methods are used to remove the filling material. Pdf efficacy of three different rotary files to remove. In the current study, the area of remaining gutta percha after retreatment with protaper files is in accordance with previous studies 3, 4. Materials and methods sixty mandibular premolars with one canal, and curvatures less. The results show that the effect of saf on removing gutta percha. Efficacy of three different rotary files to remove gutta percha and resilon from root canals. Pdf removal of guttapercha from the root canals using three.
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. 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, research institute of dental sciences. 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. A nonsurgical technique for the removal of overextended guttapercha the journal of contemporary dental practice, marchapril 2012. 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. A practitioners guide to guttapercha removal during endodontic. 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. A red hot 57 heater plugger was used to remove gutta percha and sealer from the canals. 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. 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. Using gutta percha solvents to remove the remaining material in the apica part of the canal. Protaper universal retreatment files are designed to remove filling materials, such as gutta percha, carriers and paste fillers, prior to reshaping procedures. The purpose of this study was to compare the efficacy in vitro of gutta. Once both files have a grip on the core, braid them together by twisting the handles to tighten the hold on the core.
Method 2heat, files, and caviendo dentsply, york, pa hfc. Retreatment was performed with the following techniques. Efficacy of three different instruments for guttapercha removal in. For the removal of dentin, shaping and obturating of the root canal. International endodontic journal, 41, 288295, 2008. Used with the same technique as other constant taper 04 and 06 files so you can smoothly transition to the. 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. With the core removed, the remainder of the canal is simply gutta percha and may be filed out in the conventional manner. Group ii gutta percha removal carried out with protaper universal retreatment files. This oven is intended for use in heating gutta percha coated obturators. 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. 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.
Removal of gutta percha from root canals using an nd. Then, push the return button and allow the indicator to completely retract. In vitro study viducic d, jukic s, karlovic z, et al. A comparative evaluation of guttapercha removal by various.
Endosequence gutta percha paper point assortment wheel gppp 1560. Research article gutta percha solvents alternative to chloroform. A nonsurgical technique for the removal of overextended. Endodontic pathologies include inflammatory and infectious processes associated with bacteria, fungi and viruses, as well as a percent. Chloroform rapidly softens gutta percha and, in conjunction with files, allows for the removal of gutta percha. 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. 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. Efficacy of protaper universal, r endo, peezo reamer on. Efficacy of 3 techniques in removing root canal filling material. 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. 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.
Effectiveness of rotary and hand files in guttapercha and. 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. Nov 24, 2015 removal of gutta percha gp is a critical step in endodontic retreatment. The mount of residual filling material on the canal walls as imaged and measured using image. Hand or rotary files must be used to complete the removal of the material. Removal of root filling materials is one of the key steps in success of root canal retreatment. Maximum amount of gutta percha was found at coronal third and least in apical third of the root canal in all the groups. Both autofit and standard gutta percha cones fit seamlessly into a gutta percha wheel. A comparison of three guttapercha obturation techniques. Pdf in vitro comparison of guttapercha removal with h. Wellcondensed guttapercha is a different prospect and requires. In vitro comparison of guttapercha removal with hfile and protaper with or without chloroform article pdf available in iranian endodontic journal 81. Removal of gutta percha gp is a critical step in endodontic retreatment.
Gutta percha removal from root canal can be done by the following methods and instruments. This might be explained due to more amount of gutta percha in the coronal third and the difference between the. The use of stainless steel hand files resulted in a lesser amount of filling debris than the use of nickeltitanium rotary instrume nts. Do not use a cleaner handpiece cartridge heater if gutta percha gets into the cartridge heater section of the handpiece, turn on the unit. Efficacy of different methods for removing root canal. Gpr realizes quick, easy, and efficient gutta percha removal during root canal retreatment. 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. Material and methods forty mesial roots of mandibular molars with two curved canals and 80 single. Engine reamers extraordinarily sharp and mirrorlike finished edges with high ductility make for excellent working characteristics. Protaper universal retreatment files root fillings were removed with protaper universal retreatment instruments following the manufacturers instruction. A practitioners guide to guttapercha removal during. Yl ng, k gulabivala, in endodontics fourth edition, 2014. Removal of guttapercha from root canals using the self. Removal of gutta percha from root canals using the selfadjusting file.
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. The conventional removal of gutta percha using hand files is a tedious procedure. Removal of obturation materials linkedin slideshare. To better replicate the apical defect, a smaller size gutta percha cone was used to allow room for the spreader. 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. In addition, a portion of gutta percha was found spilled in the periradicular tissues. Hedstrom files vereinigte dentalwerke, munich, germany, protaper dentsply maillefer, ballaigues, switzerland. 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 hfile. The design of the flutes of the hedstrom files also facilitates guttapercha removal. Methodology fortyeight human root canals with curvatures ranging between 25 and 45 were instru.
Efficacy of protaper and mtwo retreatment files in removal of. 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. Pro taper rotary files have proven their efficiency in removing guttapercha because of the association of the solvent with the instrument. Conclusions none of the instruments were able to remove the filling material completely from root canal. Efficacy of different solvents in removing guttapercha from. Then, each gutta percha point was immersed for 1 minute into the solvent of the group it had been assigned figure 1. Reciproc, manual files, guttapercha solvents, xylol.
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. In group 1 quantec sc rotary instruments were used for filling removal and in group 2, hand files and solvent. Endosequence gutta percha paper point assortment wheel gp. Removal of gutta percha and solidcore obturators with plastic or crosslinked gutta percha carriers usually is performed with some combination of heat, solvents, and endodontic files and reamers both manual and enginedriven. 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. Removal of gp is generally accomplished by the use of heat, hedstrom files, gp solvents, and rotary gp removal instruments. Efficacy of protaper universal rotary retreatment system for. 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. Barrieshinusair reported niti rotary removal of gutta percha for retreatment. Effectiveness of rotary and hand files in guttapercha and sealer removal using chloroform. The efficacy of guttapercha removal using profiles suffolk root.
This was repeated until no more than 2 mm of the spreader could be advanced into the canal. 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. Pdf evaluation of four guttapercha removal techniques for. Gutta percha removal can be achieved by several techniques, one of which is the manual use of endodontic hand files, e. 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.
Protaper universal retreatment system and mtwo retreatment files were more efficient and faster compared to nrt gpr fles and hedstrom files. The customer or the user of the obtura iii max heated gutta percha system should assure that it is used in. Efficacy of protaper and mtwo retreatment files in removal. 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. Stephen buchanan, autofit gutta percha is the latest innovation in filling materials. Greater taper cones are designed to match canals shaped with greater taper. Aim the purpose of this study was to compare the efficacy in vitro of guttapercha removal from obturated root canals using profiles. Efficacy of different rotary instruments for gutta percha removal in root canal retreatment. Introduction removal of root filling materials is one of the key steps in success of root canal retreatment. The aim of the present study was to compare the guttapercha removal with protaper retreatment files dentsply maillefer, ballaigues. When endodontic retreatment is performed, irritants in the form of filling materials, necrotic pulp, bacteria or irrigant might be introduced into the apical region. 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. The aim of this study was to examine two characteristics associated with the use of two solvents, to assist the removal of gutta percha. Gates glidden burs, hedstrom files, kfiles and endodontic solvents and the design features that make them ideal for guttapercha removal.
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. Clearly, it would be interesting to combine rotary and hand instruments. Autofit greater taper gutta percha developed by dr. The removal of gutta percha using rotary instruments in the retreatment process have decreased the chairside clinical time. Kerr endodontics radiopaque gutta percha is the timeproven fill for root canal therapies.
International endodontic journal, 34, 267274, 2001. Efficacy of different methods for removing root canal filling. 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. 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 three different rotary files to remove gutta. Saf contacts more root canal walls as compared with other files and thus would potentially be more effective in the removal of gutta percha. 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. Chloroform rapidly softens gutta percha and, in conjunction with files, allows for the removal of gutta percha in a crowndown manner.
Removal of guttapercha was performed with the following devices and techniques. Endodontic rotary instrumentsdental instrumentsproduct. In brief, d1, d2 and d3 instruments were sequentially used in a crowndown manner. 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. 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. Sixty extracted singlerooted bovine teeth with straight, large canals were prepared, obtured and randomly assigned to 3 groups n20. Review removal of guttapercha with hand files, xylol and. Ideal for simple straight canals and removing gutta percha. In vitro comparison of guttapercha removal with hfile. Efficacy of guttapercha solvents used in endodontic. 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.
Instruments and techniques used in removal of gutta percha. Nov 20, 2014 files were wiped regularly using gauze to remove obturation materials and debris. Efficacy of three different instruments for guttapercha. Pdf removal of guttapercha from root canals using the. Efficacy of 3 techniques in removing root canal filling. It is a polymer of isoprene which forms a rubberlike elastomer. 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.