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Dehghan Banadkooki S, Donyavi Z, Hafedi A. Effect of Spreader Taper on Root Fracture Resistance in Canals Obturated with Gutta-Percha/AH26 By Lateral Condensation Technique. aumj 2024; 13 (1) :17-25
URL: http://aums.abzums.ac.ir/article-1-1634-en.html
URL: http://aums.abzums.ac.ir/article-1-1634-en.html
1- Assistant Professor, Department of Endodontics, School of Dentistry, Alborz University of Medical Sciences, Karaj, Iran
2- Student Research Committee, Faculty of Dentistry, Alborz University of Medical Sciences, karaj, Iran
2- Student Research Committee, Faculty of Dentistry, Alborz University of Medical Sciences, karaj, Iran
Abstract: (563 Views)
Aim and background: This study was performed to investigate the effect of taper of stainless-steel spreader on root fracture resistance by applying the same force.
Materials and methods: This study was performed on forty extracted lateral maxillary teeth. Root canal preparation was performed on all samples. Before canal obturation, samples were divided in four groups randomly. Group 1, lateral condensation using a stainless-steel spreader with 2% taper. Group 2 was obturated with a stainless-steel spreader of the same material but with 4% taper, as in group one. In group three or negative control, the canals were not obturated, and in group four or positive control, lateral condensation technique was performed until cracks were created in the root. After 72-hour incubation and thermocycling, fracture resistance test was done. Data obtained were statistically analysed using SPSS, one way ANOVA and post Hoc Bonferouni.
Results: For statistical analysis, the significance level was p<0.05. Fracture resistance values were as follow, respectively: negative control> 25/0.02 spreader group> 25/0.04 spreader group> positive control. Fracture resistance in obturated canals by 25/0.02 or 25/0.04 spreaders and unobturated canal was significantly more than positive control, although pair by pair comparison of these three groups showed no significant difference.
Conclusion: Using 25/0.02 and 25/0.04 stainless steel spreaders in lateral condensation technique didn’t make a significant reduction in fracture resistance values of the roots.
Materials and methods: This study was performed on forty extracted lateral maxillary teeth. Root canal preparation was performed on all samples. Before canal obturation, samples were divided in four groups randomly. Group 1, lateral condensation using a stainless-steel spreader with 2% taper. Group 2 was obturated with a stainless-steel spreader of the same material but with 4% taper, as in group one. In group three or negative control, the canals were not obturated, and in group four or positive control, lateral condensation technique was performed until cracks were created in the root. After 72-hour incubation and thermocycling, fracture resistance test was done. Data obtained were statistically analysed using SPSS, one way ANOVA and post Hoc Bonferouni.
Results: For statistical analysis, the significance level was p<0.05. Fracture resistance values were as follow, respectively: negative control> 25/0.02 spreader group> 25/0.04 spreader group> positive control. Fracture resistance in obturated canals by 25/0.02 or 25/0.04 spreaders and unobturated canal was significantly more than positive control, although pair by pair comparison of these three groups showed no significant difference.
Conclusion: Using 25/0.02 and 25/0.04 stainless steel spreaders in lateral condensation technique didn’t make a significant reduction in fracture resistance values of the roots.
Type of Study: Research |
Subject:
Special
Received: 2022/11/15 | Accepted: 2023/02/08 | Published: 2024/02/29
Received: 2022/11/15 | Accepted: 2023/02/08 | Published: 2024/02/29
References
1. De Almeida WA, Leonardo MR, Tanomaru Filho M, Silva LA. Evaluation of apical sealing of three endodontic sealers. Int Endod J. 2000 Jan;33(1):25-7. [DOI:10.1046/j.1365-2591.2000.00247.x]
2. Bhandi Sh, Mashyakhy M, Abumelha AS, Alkahtany MF, Jamal M, Chohan H, et. al. Complete Obturation-Cold Lateral Condensation vs. Thermoplastic Techniques: A Systematic Review of Micro-CT Studies. Materials (Basel).2021 Jul;18(14):4013. [DOI:10.3390/ma14144013]
3. Collins J, Walker MP, Kulild J, Lee C. A comparison of three gutta-percha obturation techniques to replicate canal irregularities. J Endod. 2006 Aug;32(8):762-5. [DOI:10.1016/j.joen.2005.10.001]
4. Saw LH, Messer HH. Root strains associated with different obturation techniques. J Endod. 1995 Jun;21(6):314-20. [DOI:10.1016/S0099-2399(06)81008-3]
5. Allison DA, Michelich RJ, Walton RE. The influence of master cone adaptation on the quality of the apical seal. J Endod. 1981 Feb;7(2):61-5. [DOI:10.1016/S0099-2399(81)80243-9]
6. Yıldız ED, Fidan ME, Sakarya RE, Dinçer B. The effect of taper and apical preparation size on fracture resistance of roots. Aust Endod J. 2021 Apr;47(1):67-72. [DOI:10.1111/aej.12472]
7. Zogheib C, Sfeir G, Plotino G, Deus GD, Daou M, Khalil I. Impact of Minimal Root Canal Taper on the Fracture Resistance of Endodontically Treated Bicuspids. J Int Soc Prev Community Dent. 2018 Mar-Apr;8(2):179-183. [DOI:10.4103/jispcd.JISPCD_88_18]
8. Dang DA, Walton RE. Vertical root fracture and root distortion: effect of spreader design. J Endod. 1989 Jul;15(7):294-301. [DOI:10.1016/S0099-2399(89)80050-0]
9. Trindade-Junior A, Guerreiro-Tanomaru JM, Viapiana R, Reis JMSN, Tanomaru-Filho M. Influence of the gutta-percha taper and finger spreader on lateral condensation effectiveness. RSBO. 2014 Oct-Dec;11(4):346-51. [DOI:10.21726/rsbo.v11i4.876]
10. Shahi Sh, Zand V, Oskoee SS, Abdolrahimi M, Rahnema AH. An in vitro study of the effect of spreader penetration depth on apical microleakage. J Oral Sci. 2007 Dec;49(4):283-6. [DOI:10.2334/josnusd.49.283]
11. Gordon MP, Love RM, Chandler NP. An evaluation of .06 tapered gutta-percha cones for filling of .06 taper prepared curved root canals. Int Endod J. 2005 Feb;38(2):87-96. [DOI:10.1111/j.1365-2591.2004.00903.x]
12. Tang W, Wu Y, Smales RJ. Identifying and reducing risks for potential fractures in endodontically treated teeth.J Endod. 2010 Apr;36(4):609-17. [DOI:10.1016/j.joen.2009.12.002]
13. Peters OA. Current challenges and concepts in the preparation of root canal systems: a review. J Endod. 2004 Aug;30(8):559-67. [DOI:10.1097/01.DON.0000129039.59003.9D]
14. Wolters WJ, Duncan HF, Tomson PL, Karim IE, McKenna G, Dorri M, et al. Minimally invasive endodontics: a new diagnostic system for assessing pulpitis and subsequent treatment needs. Int Endod J. 2017 Sep;50(9):825-9. [DOI:10.1111/iej.12793]
15. Krishan R, Paqué F, Ossareh A, Kishen A, Dao T, Friedman S. Impacts of conservative endodontic cavity on root canal instrumentation efficacy and resistance to fracture assessed in incisors, premolars, and molars. J Endod. 2014 Aug;40(8):1160-6. [DOI:10.1016/j.joen.2013.12.012]
16. Abbott P. Traumatic dental injuries are now the 5th most prevalent disease/injury in the world-But they are being neglected!!. Dent Traumatol. 2018 Dec;34(6):383. [DOI:10.1111/edt.12451]
17. Barreto MS, Moraes Rdo A, Rosa RA, Moreira CH, Só MV, Bier CA. Vertical root fractures and dentin defects: effects of root canal preparation, filling, and mechanical cycling. J Endod. 2012 Aug;38(8):1135-9. [DOI:10.1016/j.joen.2012.05.002]
18. Wu MK, van der Sluis LW, Wesselink PR. Comparison of mandibular premolars and canines with respect to their resistance to vertical root fracture. J Dent. 2004 May;32(4):265-8. [DOI:10.1016/j.jdent.2003.12.002]
19. Soros C, Zinelis S, Lambrianidis T, Palaghias G. Spreader load required for vertical root fracture during lateral compaction ex vivo: evaluation of periodontal simulation and fracture load information. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Sep;106(2):e64-70. [DOI:10.1016/j.tripleo.2008.03.027]
20. Krikeli E, Mikrogeorgis G, Lyroudia K. In Vitro Comparative Study of the Influence of Instrument Taper on the Fracture Resistance of Endodontically Treated Teeth: An Integrative Approach-based Analysis. Journal of endodontics. 2018;44(9):1407-11. [DOI:10.1016/j.joen.2018.05.007]
21. Danesh G, Dammaschke T, Gerth HU, Zandbiglari T, Schäfer E. A comparative study of selected properties of ProRoot mineral trioxide aggregate and two Portland cements. International endodontic journal. 2006;39(3):213-9. [DOI:10.1111/j.1365-2591.2006.01076.x]
22. Johnson ME, Stewart GP, Nielsen CJ, Hatton JF. Evaluation of root reinforcement of endodontically treated teeth. Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics. 2000;90(3):360-4. [DOI:10.1067/moe.2000.108951]
23. Castrisos TV, Palamara JE, Abbott PV. Measurement of strain on tooth roots during post removal with the Eggler post remover. Int Endod J. 2002 Apr;35(4):337-44. [DOI:10.1046/j.1365-2591.2002.00483.x]
24. Pişkin B, Aydın B, Sarıkanat MJIej. The effect of spreader size on racture resistance of maxillary incisor roots. Int Endod J. 2008 Jan;41(1):54-9. [DOI:10.1111/j.1365-2591.2007.01314.x]
25. Shemesh H, Bier CA, Wu MK, Tanomaru-Filho M, Wesselink PR. The effects of canal preparation and filling on the incidence of dentinal defects. Int Endod J. 2009 Mar;42(3):208-13. [DOI:10.1111/j.1365-2591.2008.01502.x]
26. Wilcox LR, Roskelley C, Sutton T. The relationship of root canal enlargement to finger-spreader induced vertical root fracture. J Endod. 1997 Aug;23(8):533-4. [DOI:10.1016/S0099-2399(97)80316-0]
27. Wang Q, Liu Y, Wang Z, Yang T, Liang Y, Gao Z, et al. Effect of Access Cavities and Canal Enlargement on Biomechanics of Endodontically Treated Teeth: A Finite Element Analysis. J Endod. 2020 Oct;46(10):1501-7. [DOI:10.1016/j.joen.2020.06.013]
28. Sahebi S, Nabavizade MR, Moazami F. Evaluation of Three Different Spreading Forces Using Lateral Condensation Technique on Apical Leakage and Tooth Fracture: An in Vitro Study. Journal of Islamic Dental Association of IRAN (JIDAI). Spring 2012; 24(2):9-14.
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