Efficacy of 3 techniques in removing root canal filling material. It is a polymer of isoprene which forms a rubberlike elastomer the word guttapercha comes from the plants name in malay. Effectiveness of rotary and hand files in guttapercha and. Efficacy of reciproc and profile instruments in the removal of guttapercha from straight and curved root canals ex vivo karem marfisi, 1 montserrat mercade, 1 gianluca plotino, 2 tatiana clavel, 1 fernando duransindreu, 1 and miguel roig 1. Mostly normal rotary files tried for these are m2 revo s tf edge endo. Bob loney, professor and chair of the dental clinical sciences department at the faculty of dentistry, dalhousie university, demonstrates how to remove gutta percha from a root canal in order to prepare an adequate post space to support a restoration on an endodontically treated tooth. An in vitro ct comparison of guttapercha removal with two rotary systems and hedstrom files pankaj yadav 1, makonahalli jaganath bharath 2, chickmagravalli krishnegowda sahadev 2, praveen kumar makonahalli ramachandra 2, yogesh rao 3, ambereen ali2, shahnawaz mohamed2. With good case selection, niti rotary files are very effective and efficient for removing. Efficacy of 3 techniques in removing root canal filling. Flutes on one side of hfile were blunted using a diamond disk and hand instrumentation was carried out with safe sided h files sizes 1540 by circumferential filing.
Progress to smaller files until working length reached. With high flexibility and cutting efficiency flexile files for twisted contra handpieces. Protaper compared with hand files, in the removal of gutta percha during. Inhalation remove patient from exposure to fresh air immediately. Evolution guttapercha was first introduced to dentistry as a temporary filling material by edwin truman. Removal of gutta percha gp is a critical step in endodontic retreatment. Pdf in vitro comparison of guttapercha removal with h. 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. How to simply remove gp for endodontic retreatment the. Universal rotary retreatment system for guttapercha removal from root canals. Dentsply gutta percha points are high quality root canal obturation materials. Root canal therapy can be performed in a single appointment. Gmbh and protaper universal retreatment files dentsplymaillefer 4,14, in the removal of different filling materials and root canal reinstrumentation. Historical uses of gutta percha gutta percha from the columbia encyclopedia, sixth edition.
Mar, 2016 removal of single cone gp h file ultrasonic files 7. The effectiveness of rotary and hand instrumentation on. The first step in retreatment is to remove as much of the gutta percha in the orifice as pos sible without removing any of the core. Barium sulfate 7727437 na avoid contact and inhalation. Guttapercha is the purified coagulated exudate from the palaquium gutta tree, commonly called the mazer wood tree, of the burma and malay archipelago. Removal of guttaperchazincoxideeugenol sealer or gutta. The efficacy of guttapercha removal using profiles suffolk root. Jun 04, 2012 in this presentation i show a very useful clinical tip which helps you to more easily remove the gutta percha from a complex root canal system during an endodontic retreatment procedure.
Comparison of the mean % of gutta percha remaining in the apical rd region in the all groups. Removal of overextended guttapercha root canal fillings in. Removal of gutta percha from root canals using an nd. Gutta percha 9000322 na na zinc oxide 142 na can be toxic to human being and environmental if it is not used according to the recommendation.
Huang department of operative dentistry and endodontics, guanghua college of stomatology, sun yatsen university, guangzhou. Guttapercha definition of guttapercha by merriamwebster. Second, the remaining gutta percha, which is preserved as solid as possible, is removed by a hedstrom file. Removal of overextended guttapercha root canal fillings. Final setting time is the primary difference between the two. 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. Large files rotate once counterclockwise, then 34 clockwise, repeat. In vitro study viducic d, jukic s, karlovic z, et al. I was demonstrating a method for removal of gp from treated canals. Time taken for complete removal of gutta percha to reach working length ability of h files and protaper retreatment files with without xylene to remove gutta percha in coronal, middle and. Comparison of the efficacy of three different techniques.
Endodontic pathologies include inflammatory and infectious processes associated with bacteria, fungi and viruses, as well as a percent. Guttacore, with a crosslinked gutta percha core, makes this easier, he says. Historical uses of guttapercha endodonziamauroventuri. Other hand files different types of hand file have been introduced from time to time with varied structure and cutting action. The use of stainless steel hand files resulted in a lesser amount of filling debris than the use of nickeltitanium rotary instrume nts.
Both regular and firmset should be compacted once the initial set occurs. Guttapercha has proven to be the material of choice worldwide for successful obturation when used in combination with a root canal sealer. In conclusion, complete removal of guttapercha cannot be achieved with any of the techniques used. 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. Aim the purpose of this study was to compare the efficacy in vitro of guttapercha removal from obturated root canals using profiles. Eyes get medical aid immediately if discomfort or irritation persists. Comparative evaluation of the efficiency of manual and rotary.
The effectiveness of guttapercha removal also depends on anatomical factors, such as the degree of root canal curvature 8, the initial crosssectional. Efficacy of protaper universal rotary retreatment system for gutta. Give special attention to chemical materials and conditions that must be avoided. Aim the purpose of this study was to compare the efficacy in vitro of gutta percha removal from obturated root canals using profiles. Gutta percha definition is a tough plastic substance from the latex of several malaysian trees especially palaquium gutta of the sapodilla family that resembles rubber but contains more resin and is used especially as insulation and in dentistry as a permanent filling in root canals. The removal of gutta percha using hand files with or without solvent can be a tedious, timeconsuming process, especially when the root filling material is well condensed 9.
Endodontic rotary instrumentsdental instrumentsproduct. The time of removal with drace rotary desobturation files was significantly faster than other techniques. This can be accomplished with either chloroform or a heated instrument. Premier dental products company premier gutta percha page 1 of 4 pages material safety data sheet gutta percha points msds, rev. Once the gross removal of gutta percha from the canals is complete with alternating use of cform and alcohol, i usually use edta as it will continue to clean the remaining of the softened gutta percha from the. Efficacy of protaper universal rotary retreatment system. The obturation of root canal using gp points from dentsply gives optimal obturation results. Pdf safe, successful and effective removal of root filling materials is an integral component of nonsurgical root. The reciproc system includes reciproc guttapercha for use with either cold obturation techniques such as single cone and lateral compaction or as a master cone for warm vertical compaction. Removal of gp is generally accomplished by the use of heat, hedstrom files, gp solvents, and rotary gp removal instruments. Buy dentsply gutta percha points online at best price. Gutta percha points endodontic files, obturators, points.
H files are the most commonly used files for removing guttapercha from the root canals. Pdf evaluation of two rotary nickeltitanium systems for gutta. Therefore, in order to allow effective removal of filling material and shor. Protaper universal rotary files are single patient use devices. In order to prevent strip perforations, which is one of the.
Removal of gutta percha with manual instrumentation is a tedious and time consuming procedure 7. The design of the flutes of the hedstrom files also facilitates guttapercha removal. Below is a video of a demonstration i gave at the jiao tong university dental school in shanghai. Drace desobturation system for retreatment is more effective and faster in removing guttapercha than other techniques. Review removal of guttapercha with hand files, xylol and. Efficacy of reciproc and profile instruments in the. The use of hand files for root canal retreatment has generally been found to be less effective in canal cleaning procedures 10, 32, although some deviations from this finding have been noted with the removal of gutta percha and synthetic polymerbased materials, such as epiphanyresilon resilon research llc, madison, conn, usa or endo rez. Gutta percha points are designed in various sizes to fit in different canals, and many companies that produce endodontic. Removal of obturation materials linkedin slideshare.
Apr 15, 20 as for removal of carrier cores, it depends on the type and brand of core used. Tf gutta percha points are designed to the tf apical file preparations. Guttacore, with a crosslinked guttapercha core, makes this easier, he says. Poorly condensed gutta percha fillings can easily be removed by hedstrom files and solvents such as chloroform or xylene 1, 2. Removal of condensed gp removal of gutta percha manually removal of gutta percha using rotary system removal of gutta percha using laser 9. 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. Bill nudera, dds, demonstrates removing the obturator handle and excess gutta percha from the canal chamber. Pdf evaluation of four guttapercha removal techniques. Normally, these materials are used in combination with guttapercha and their main goal is to fill the remaining voids so that the root canal filling is as compact as possible.
In vitro comparison of guttapercha removal with h file and protaper with or without chloroform article pdf available in iranian endodontic journal 81. Pdf removal of root filling materials researchgate. The mean scores of % of gp remaining in the apical rd region using h files, safe h files, protaper retreatment rotary files, ultrasonic retreatment tips were 15. A manual technique with the combined use of h files and a commonly used chemical solvent such as chloroform or xylene is suggested for the removal of a wellcompacted gutta percha gp obturation during endodontic retreatment 1, 2.
Retreatment of a failed root canal treatment often requires com plete removal of the root canal filling. International endodontic journal, 41, 288295, 2008. Historical uses of guttapercha guttapercha from the columbia encyclopedia, sixth edition. Designed with a flameshaped boring head with a noncutting guide tip on a slender shaft. Efficacy of 3 techniques in removing root canal filling material emre bodrumlu, dds, phd. Oct 23, 2004 the hedstroem file is useful for removing gutta percha root fillings. The hedstroem file is useful for removing guttapercha root fillings. In this presentation i show a very useful clinical tip which helps you to more easily remove the gutta percha from a complex root canal system during an endodontic retreatment procedure.
Once the gross removal of guttapercha from the canals is complete with alternating use of cform and alcohol, i usually use edta as it will continue to clean the remaining of the softened guttapercha from the canal system. Skin consult a physician immediately if you feel discomfort. Hand or rotary files must be used to complete the removal of the material. While the crosssectional design of the ptus files favors removal of large amounts of guttapercha in spirals around the instruments, the same crosssectional design and the highcentering ability prevent it from contacting all the walls of the root canals, thereby deterring complete removal of filling material from the root canals 10, 22, 36. Chloroform rapidly softens gutta percha and, in conjunction with files, allows for the removal of gutta percha in a crowndown manner. How can i safely and efficiently remove gutta percha to. Among the chemical solvents, xylene, eucalyptol, orange oil and chloroform have been some of the options more commonly employed 5, 7, 8, 12. Efficacy of reciproc and profile instruments in the removal. Pdf evaluation of four guttapercha removal techniques for. Evaluation of four guttapercha removal techniques for endodontic retreatment. Safe handling follow all prevention measures on the sdslabels.
To obtain the latex, the tree may be felled and rings cut in the bark. However, there are situations when a medication is placed inside root canals. Efficacy of protaper universal rotary retreatment system for. Removal of obturation materials advanced endodontics. First, the gutta percha is softened with xylene and removed to a distance of 2 to 3 mm short of the apex. Gpr gutta percha remover gpr realizes quick, easy, and efficient gutta percha removal during root canal retreatment. In vitro evaluation of efficacy of different rotary.
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. Jul 02, 2012 it clumps up all the softened gutta percha to the point that it can easily be rinsed off by water spray or picked off by instruments. Similarly, another manual technique is suggested with the combined use of hand files and an electrically heated spreader or plugger such as system b heat source. Used to reduce the curvature in the orifice of the canal, allowing greater access to the canal for cleaning and obturation.
Guttapercha, yellowish or brownish leathery material derived from the latex of certain trees in malaysia, the south pacific, and south america, especially palaquium oblongifolia and, formerly, p. The the guttapercha is specially design to match the continuously tapering shapes that are. Preparation completed using 2 % stainless steel files using a 1 mm stepback technique. 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. The purpose of this study was to assess in vitro the efficacy of nickeltitanium k 3 rotary files and hand files for removal of guttapercha and sealer from obturated root canals using either chloroform or chlorhexidine as solvents. Methodology fortyeight human root canals with curvatures ranging between 25 and 45 were instru. The method that i describe is only one of many methods, but i think it is a good way to begin retreating. Guttapercha has been used since the late 1950s in traditional us dentistry practice for guttapercha points, otherwise known as gp points.
Gutta percha points the goto endodontic obturation material for many years, gutta percha points are used to fill canals following shaping and cleaning during root canal treatments. Comparative evaluation of the efficiency of manual and. The purpose of this study was to evaluate the efficiency of profile, gt, protaper, race and k3 rotary instruments compared with hand k files for removal of gutta percha during retreatment. Three dimensional injectable gutta percha system obturation. Various instruments have been used for guttapercha gp removal, including endodontic hand files, engine driven rotary files, ultrasonic tips and files, and heat. Cleanliness of canal walls following guttapercha removal with.
Guttapercha 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. Removal of single cone gp h file ultrasonic files 7. Twenty maxillary central incisors with a single straight canal. Jun 10, 2014 evolution guttapercha was first introduced to dentistry as a temporary filling material by edwin truman. Offered in an extended range of sizes suitable for various obturation techniques available in. Safe handling follow all prevention measures on the msdslabels. Purication removal method dispose of the product as medical waste. However, with overextended root canal fillings, guttapercha fragments often re main in the periapical tissue. Therefore, it is necessary to identify the optimum file system that will allow most effective removal of obturation material from the root canal 10. Quantec sc rotary instruments versus hand files for gutta. Efficacy of protaper and mtwo retreatment files in removal of.
According to stabhouz and friedman 15, the use of solvents is essential for filling material removal within dentinal tubules and ramifications, therefore. International endodontic journal, 34, 267274, 2001. Clearly, it would be interesting to combine rotary and hand instruments. Sixty extracted singlerooted bovine teeth with straight, large canals were prepared, obtured and randomly assigned to 3 groups n20. Race and k3 rotary instruments compared with hand kfiles for removal of guttapercha during. Produced from the coagulated latex of trees native to malaysia, gutta percha is a natural material that is heated and then compressed into the canal. Part 5 basic instruments and materials for root canal treatment. Efficacy of protaper and mtwo retreatment files in removal. The effectiveness of guttapercha removal also depends on anatomical factors, such as the degree of. Apr 07, 2010 below is a video of a demonstration i gave at the jiao tong university dental school in shanghai. A practitioners guide to guttapercha removal during. Gutta percha, yellowish or brownish leathery material derived from the latex of certain trees in malaysia, the south pacific, and south america, especially palaquium oblongifolia and, formerly, p. Efficacy of guttapercha solvents used in endodontic.
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