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Gupta, Ashu
- Efficacy of Two Ni-Ti Retreatment Systems and Hand Files in Removing Gutta-Perchaand Sealer from Root Canals Filled with Three Different Types of Sealers
Abstract Views :242 |
PDF Views:99
Authors
Affiliations
1 Department of Conservative Dentistry & Endodontics, Govt. Dental College & Hospital, Himachal Pradesh,, IN
2 Department of Conservative Dentistry & Endodontics Govt. Dental College & Hospital, Himachal Pradesh, IN
3 Department of Conservative Dentistry & Endodontics, Govt. Dental College & Hospital, Himachal Pradesh, IN
1 Department of Conservative Dentistry & Endodontics, Govt. Dental College & Hospital, Himachal Pradesh,, IN
2 Department of Conservative Dentistry & Endodontics Govt. Dental College & Hospital, Himachal Pradesh, IN
3 Department of Conservative Dentistry & Endodontics, Govt. Dental College & Hospital, Himachal Pradesh, IN
Source
Dental Journal of Advance Studies, Vol 3, No 2 (2015), Pagination: 71-79Abstract
This study was undertaken to evaluate the efficiency of two rotary nickel titanium instruments and hand instrumentation in removing gutta-percha and sealer from ischolar_main canals. 63 extracted human single ischolar_mained premolars were instrumented with K-files and filled using lateral compaction of guttapercha (GP) and three different sealers. The teeth were randomly divided into three experimental groups of 21 specimens each. Removal of gutta-percha was performed with R-Endo retreatment files, Mtwo retreatment files and Hedstrom files. Time to reach working length and to eliminate filling material was also recorded. The specimens were sectioned for evaluation of the area of the remaining gutta-percha/sealer under stereomicroscope at 6X magnification. Photographs were taken for further analysis using computer image analysis program. The results were statistically analyzed using Analysis of variance (ANOVA) and Tukey's honestly significant difference test. The R-Endo retreatment system resulted in a smaller percentage of canal area covered by residual GP/sealer than in other groups, a significant difference was found between R-Endo and Mtwo group and between Hedstrom groups (p < 0.001). The Mean operating time was minimum with R-Endo group while it was found to be maximum with hand files. It was concluded that all test techniques left gutta-percha/sealer remnants within the ischolar_main canal. The R-Endo retreatment files and Mtwo retreatment files system proved to be an efficient method for removing gutta-percha and sealer from single ischolar_mained premolars.Keywords
Gutta-Percha, Root Canal Sealer, Rotary Instruments.References
- DouglasA Direct applications of a nanocomposite resin system: Part I - The evolution of contemporary composite materials. Pract ProcedAesthet Dent 2004;16(6):418.
- Turkun LS, Aktener BO, Ates M.Clinical evalutation of different posterior resin composite materials:A7-year report. Quint Int 2003;34:418-426.
- Herrero AA,Yaman P, Dennison JB. Polymerization shrinkage and depth of cure of packable composites. Quint Int 2005;36:25-31.
- Mitra SB, Wu D, Holmes BN. An application of nanotechnology on advanced dental materials. J Am Dent Assoc. 2003;134:1382–1390.
- Gupta S, Khinda VIS, Grewal N. A Comparative study of Microleakage below Cemento-enameljunction using Light Cure and Chemically Cured glass lonomer cement liners. J Indian Soc Pedo Prev Dent December 2002; 20(4):158-184.
- Bayne SC, Thompson JY, Swift EJ, Jr, Stamatiades P, Wilkerson P. A characterization of first generation flowable composites. JAmDentAssoc.1998;129:567–577.
- Attar N, Tam LE, McComb D. Flow, strength, stiffness and radioopacity of flowable resin composites. J Can Dent Assoc. 2003; 61:516–521.
- Cobb DS, Macgregor KM, Vargas MA, and Denehy GE. The physical properties of packable and conventional posterior resin-based composites: a comparison. J Am Dent Assoc 2000; 131:1610-1615.
- HickelR and Manhart J. Longevity of restorations in posterior teeth and reasons for failure. JAdhes Dent 2001; 3:45-64.
- Peutzfeldt A. Resin composites in dentistry: the monomer systems. Eur J Oral Sci 1997; 105:97–116.
- Sheth JJ, Jensen ME, Sheth PJ, Versteeg J. Effect of etching glassionomer cements on bond strength to composite resin. J Dent Res 1989; 68:1082-7.
- Arora V, Kundabala M, Parolia A, Thomas MS, Pai V. Comparison of the shear bond strength of RMGIC to a resin composite using different adhesive systems:An invitro study. J Conserv Dent 2010;13:80-3.
- Liebenberg WH. Successive cusp build-up: an improved placement technique for posterior direct resin restorations. J Can DentAssoc 1996;62:501-7.
- Yazici RA, Celik C, Ozgunaltay G. Microleakage of different resin composite types. Quint Int 2004; 23(10):790-794.
- Van Meerbeek B,Willens G, Celis JP, Roos JR, Lambrechts P, Vanherle G. Assessment by nanoindentation of the hardness and elasticity of the resin–dentin bonding area. J Dent Res 1993; 72:1434–1442.
- Owens BM (2002). The effect of different drying methods for single step adhesive systems on microleakage of tooth colored restorations J Contemp Dent Pract 3(4):1-10.
- Sidhu SK, Henderson LJ. In vitro marginal leakage of cervical composite resins restorations lined with a light-cured glass ionomer. Oper Dent 1992;17:7-12.
- Aboushala A, Kugel G, Hurley E. Class II composite resin restorations using glass- ionomer liners: Microleakage studies. J Clin Pediatr Dent 1996;21:67-70.
- Tollidos K, Setcos JC. Initial degree of polymerization shrinkage exhibited by flowable composite resins. J Dent Res 1999;78:483-5.
- Tredwin CJ, StokesA, Moles DR. Influence of flowable liners and margin location on microleakage of conventional and packable class II resin composites. Oper Dent 2005;30:32-8.
- Chuang SF, JinYT, Liu JK, Chang CH, Shieh DB. Influence of flowable lining thickness on class II composite restorations. Oper Dent 2004;29:301-8.
- Derhami K, Colli P, Brannstrom M. Microleakage in Class 2 composite restorations. Oper Dent 1995;20:100-5.
- Demarco FF, Ramos OL, Mota CS, Formolo E, Justino ML. Influence of different restorative techniques on microleakage in class II cavities with gingival wall in cementum. Oper Dent 2001;26:253-9.
- Ingle JI, Bakland LK, Baumgartner CJ. Ingles Endodontics 6. 6th edition. Hamilton:BCDecker Inc; 2008.
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- Gorni FG, Gagliani MM. The outcome of endodontic retreatment: a 2-yr follow-up. J Endod 2004; 30:1-4.
- Barletta FB, Rahde Nde M, Limongi O, Moura AA, Zanesco C, Mazocatto G. In vitro comparative analysis of 2 mechanical techniques for removing gutta-percha during retreatment. J Can DentAssoc 2007; 73:65.
- Ruddle CJ. Nonsurgical retreatment. In: Cohen S, Burns RC, eds. Pathways of the pulp (ed 8). St Louis, MO: CV Mosby; 2002:875-930.
- Viduèiae D, Juki S, Karlovi Z, Boi , Mileti I, Ani I. Removal of gutta-percha from ischolar_main canals using an Nd:YAG laser. Int Endod J 2003; 36:670 –673.
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- Tronstad L, Niemczyk SP. Efficacy and safety tests of six automated devices for ischolar_main canal instrumentation. Endod Dent Traumatol 1986; 2:270–276.
- Gu LS, Ling JQ, Wei X, Huang XY. Efficacy of ProTaper Universal rotary retreatment system for gutta-percha removal from ischolar_main canals. Int Endod J 2008; 41, 288–295.
- Tasdemir T, Yildirim T, Celik D. Comparative study of removal of current endodontic fillings. J Endod 2008; 34:326 –329.
- Evaluation of Microleakage in Posterior Nanocomposite Restorations with Adhesive Liners
Abstract Views :295 |
PDF Views:99
Authors
Affiliations
1 Department of Conservative Dentistry & Endodontics, Govt. Dental College, Himachal Pradesh, IN
1 Department of Conservative Dentistry & Endodontics, Govt. Dental College, Himachal Pradesh, IN
Source
Dental Journal of Advance Studies, Vol 3, No 2 (2015), Pagination: 97-102Abstract
Microleakage is the clinically detectable passage of bacteria, fluids, molecules or ions between a cavity wall and the restorative materials applied to it. This study was conducted to evaluate and compare the microleakage in Class II nanocomposite restorations, with resin-modified glass ionomer liner (group I), nanofilled flowable composite liner (group II)&without liner (group III). Thirty six non carious upper premolar teeth extracted for orthodontic purposes were selected. Standard class II cavities were prepared. The teeth were then randomly&equally divided into three groups with 12 teeth in each group. The teeth were subjected to thermocycling. After that apex of each tooth was sealed with acrylic resin and the teeth were painted with two coats of nail varnish, except for the area of 2mmfrom the periphery of the restorations. The coated teeth were immersed in buffered (pH 7) 0.5% methylene blue dye for 48 hours.Teeth were sectioned& observed under stereomicroscope of 10X magnification. At gingival level, Group I exhibited slightly lesser microleakage than group II but was not statistically significant. Group I showed no significant difference between microleakage at occlusal and gingival level (Z=1.732; P=0.083). However, in Group II and Group III, there was significantly greater microleakage at the gingival level (Z= 2.162 and 3.162; P= 0.002 and 0.002, respectively). Both resin-modified glass ionomer and flowable composite can be used as liners under nano composite restorations as reduction in microleakage was comparable.Keywords
Microleakage, Flowable Composite, Glass Ionomer Cements, Methylene Blue.References
- Douglas A. Terry, Direct applications of nanocomposite resin system: Part I - The evolution of contemporary composite materials. Pract ProcedAesthet Dent 2004;16(6):418.
- Türkü LS, Aktener BO, and Ates M Clinical evalutation of different posterior resin composite materials:A 7-year report. Quint Int 2003;34:418-426.
- Herrero AA, Yaman P, and Dennison JB. Polymerization shrinkage and depth of cure of packable composites. Quint Int 2005;36:25-31.
- Mitra SB, Wu D, Holmes BN. An application of nanotechnology on advanced dental materials. J Am Dent Assoc 2003;134:1382–1390.
- Gupta S. Khinda VIS Grewal N. A Comparative study of Microleakage below Cemento-enameljunction using Light Cure and Chemically Cured glass lonomer cement liners. J Indian Soc Pedo Prev Dent December 2002; 20(4):158-184.
- Bayne SC, Thompson JY, Swift EJ, Jr, Stamatiades P, Wilkerson P. A characterization of first generation flowable composites. JAmDentAssoc.1998;129:567–577.
- Attar N, Tam LE, McComb D. Flow, strength, stiffness and radioopacity of flowable resin composites. J Can Dent Assoc 2003; 61:516–521.
- Leevailoj C, Cochran MA, Matis BA, Moore BK, Platt JA. Microleakage of posterior packable resin composites with and without flowable liners. Oper Dent 2001;26:302–7.
- Cobb DS, Macgregor KM, Vargas MA, and Denehy GE. The physical properties of packable and conventional posterior resin-based composites: a comparison. J Am Dent Assoc 2000; 131:1610-1615.
- HickelR and Manhart J. Longevity of restorations in posterior teeth and reasons for failure. JAdhes Dent 2001; 3:45-64.
- Peutzfeldt A. Resin composites in dentistry: the monomer systems. Eur J Oral Sci 1997; 105:97–116.
- Sheth JJ, Jensen ME, Sheth PJ, Versteeg J. Effect of etching glassionomer cements on bond strength to composite resin. J Dent Res 1989; 68:1082-7.
- Arora V, Kundabala M, Parolia A, Thomas MS, Pai V. Comparison of the shear bond strength of RMGIC to a resin composite using different adhesive systems:An invitro study. J Conserv Dent 2010;13:80-3.
- Liebenberg WH. Successive cusp build-up: an improved placement technique for posterior direct resin restorations. J Can DentAssoc 1996;62:501-7.
- Yazici RA, Celik C, and Ozgunaltay G. Microleakage of different resin composite types. Quint Int 2004; 23(10):790794.
- Van Meerbeek B,Willens G, Celis JP, Roos JR, Lambrechts P and Vanherle G. Assesment by nanoindentation of the hardness and elasticity of the resin–dentin bonding area. J Dent Res 1993; 72:1434–1442.
- Owens BM. The effect of different drying methods for single step adhesive systems on microleakage of tooth colored restorations J Contemp Dent Pract 2002; 3(4):1-10.
- Sidhu SK, Henderson LJ. In vitro marginal leakage of cervical composite resins restorations lined with a light-cured glass ionomer. Oper Dent 1992;17:7-12.
- Aboushala A, Kugel G, Hurley E. Class II composite resin restorations using glass-ionomer liners: Microleakage studies. J Clin Pediatr Dent 1996;21:67-70.
- Tollidos K, Setcos JC. Initial degree of polymerization shrinkage exhibited by flowable composite resins. J Dent Res 1999;78:483-5.
- Tredwin CJ, StokesA, Moles DR. Influence of flowable liners and margin location on microleakage of conventional and packable class II resin composites. Oper Dent 2005;30:32-8.
- Chuang SF, JinYT, Liu JK, Chang CH, Shieh DB. Influence of flowable lining thickness on class II composite restorations. Oper Dent 2004;29:301-8.
- Derhami K, Colli P, Brannstrom M. Microleakage in Class 2 composite restorations. Oper Dent 1995;20:100-5.
- Demarco FF, Ramos OL, Mota CS, Formolo E, Justino ML. Influence of different restorative techniques on microleakage in class II cavities with gingival wall in cementum. Oper Dent 2001; 26:253-9.
- Hilton TJ, Schwartz RS, Ferracane JL. Microleakage of four class II resin composite insertion techniques at intraoral temperature. Quint Int 1997; 28(2): 135-145.
- Davidson CL. Glass-ionomer bases under posterior composites. J Esthet Dent 1994;6:223-4.
- Hemisection for the Treatment of Advanced Endodontic Periodontal Lesion
Abstract Views :282 |
PDF Views:88
Authors
Affiliations
1 Department of Conservative Dentistry, H.P.G.D.C & H, Shimla, Himachal Pradesh, IN
2 Department of Periodontology, M.N.D.A.V. Dental College, Solan, Himachal Pradesh, IN
1 Department of Conservative Dentistry, H.P.G.D.C & H, Shimla, Himachal Pradesh, IN
2 Department of Periodontology, M.N.D.A.V. Dental College, Solan, Himachal Pradesh, IN
Source
Dental Journal of Advance Studies, Vol 1, No 3 (2013), Pagination: 176-179Abstract
The removal of a ischolar_main and the overlaying anatomic crown is referred to as a hemisection. A case with a complain of pain and bone loss till the apex of distal ischolar_main of 36 presented in the department of Endodontics, Government dental college, Shimla. The patient had increased desire to maintain the natural dentition. The decision was taken to hemi-sect the distal ischolar_main, as mesial bone and furcation bone was relatively unaffected. After phase I therapy, periodontal flap was reflected, area debrided and distal ischolar_main was resected. This article describes a procedure of hemisection in mandibular molar and its subsequent restoration. The key to long term success appear to be thorough diagnosis, selection of patients with good oral hygiene and careful surgical and restorative management.Keywords
Periodontitis, Permanent Dental Restoration, Surgery.- Radix Entomolaris: An Endodontic Challenge
Abstract Views :164 |
PDF Views:89
Authors
Ashu Gupta
1,
Saroj Thakur
1,
Vishal Sharma
1,
Anshu Minocha
1,
Bhanu Pratap Singh
1,
Rambhika Thakur
2
Affiliations
1 Deptt. Of Conservative Dentistry, H.P.G.D.C & H, Shimla. (H.P.), IN
2 Deptt. of Periodontology, M.N.D.A.V. Dental College, Solan. (H.P.), IN
1 Deptt. Of Conservative Dentistry, H.P.G.D.C & H, Shimla. (H.P.), IN
2 Deptt. of Periodontology, M.N.D.A.V. Dental College, Solan. (H.P.), IN
Source
Dental Journal of Advance Studies, Vol 1, No 1 (2013), Pagination: 58-60Abstract
Variation of ischolar_main canal anatomy is always a challenge for accurate diagnosis and successful endodontic therapy. A thorough knowledge of most common anatomic characteristics and their possible variations is essential for the clinician. The hard tissue repository of the human dental pulp takes on numerous configurations and shapes. These aberrations occur so often that they can be considered as normal anatomy. Radix Entomolaris (RE) is one such aberration where an extra ischolar_main is present on the distolingual aspect of mandibular first molar (molar with 3 ischolar_mains). This article presents two case reports of mandibular first molars with extra ischolar_mains which was successfully treated.Keywords
Radix Entomolaris, Anatomic Variations, Extra Roots, Endodontic Treatment.- Epidermoid Cyst of Hard Palate and Evaluation of Healing by Color Power Doppler Ultrasonography:A Case Report
Abstract Views :198 |
PDF Views:88
Authors
Affiliations
1 Dept. of Conservative Dentistry and Endodontics, H.P.G.D.C., Himachal Pradesh, IN
2 Dept. of Radiodiagnosis, I.G.M.C., Himachal Pradesh, IN
1 Dept. of Conservative Dentistry and Endodontics, H.P.G.D.C., Himachal Pradesh, IN
2 Dept. of Radiodiagnosis, I.G.M.C., Himachal Pradesh, IN
Source
Dental Journal of Advance Studies, Vol 5, No 1 (2017), Pagination: 62-66Abstract
Epidermoid cyst is a rare developmental cyst of the oro-facial region which results from entrapped epidermal elements with an incidence of 6.9-7% and represents less than 0.01% of all oral cavity cysts. PRF, as a physiologic fibrin matrix, serves as a net to stem cells, especially when an accelerated angiogenesis develops in the fibrin membrane .This aspect is of particular interest in the case of wide osseous defects. The Color Power Doppler detects minute areas of blood flow and the velocity of blood flow in healing bone by recording the change in frequency caused by the moving red blood cells. It demonstrates the progressive formation of new vessels in bone during the initial healing period. As the bone remodelling proceeds, there is a decrease in flow signals.Keywords
Epidermoid Cyst, PRF, MTA, Color Power Doppler Ultrasonography.References
- Varun Rastogi, Naveen Puri, Geetpriya Kaur, Lalita Yadav, Rachna Sharma;Unusual Cases of Epidermoid cyst: Case Series, International Journal of Scientific Study, 2013; 01; (02); 72-75.
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- Dohan DM, Choukroun J, Diss A, Dohan SL, Dohan AJ, Mouhyi J. Platelet-rich fibrin (PRF): A second-generation platelet concentrate. Part II: Platelet-related biologic features. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006;101:e45-50.
- Choukroun J, Diss A, Simonpieri A, Girard MO, Schoeffler C, Dohan SL, Dohan AJ, Mouhyi J, Dohan DM. Platelet-rich fibrin (PRF): A second-generation platelet concentrate. Part V: histologic evaluations of PRF effects on bone allograft maturation in sinus lift. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006;101:299-303.