Browse > Article
http://dx.doi.org/10.5395/rde.2020.45.e53

Effect of post space preparation drills on the incidence of root dentin defects  

Thaise Ayres Bezerra Zuli (Department of Oral Sciences, School of Dentistry, University of Cuiaba - UNIC)
Orlando Aguirre Guedes (Department of Endodontics, School of Dentistry, Centro Universitario de Anapolis - UniEvangelica)
Gislaine Figueiredo Zarza Arguello Goncalves (Department of Oral Sciences, School of Dentistry, University of Cuiaba - UNIC)
Aurelio Rosa da Silva Junior (Department of Oral Sciences, School of Dentistry, University of Cuiaba - UNIC)
Alvaro Henrique Borges (Department of Oral Sciences, School of Dentistry, University of Cuiaba - UNIC)
Andreza Maria Fabio Aranha (Department of Oral Sciences, School of Dentistry, University of Cuiaba - UNIC)
Publication Information
Restorative Dentistry and Endodontics / v.45, no.4, 2020 , pp. 53.1-53.11 More about this Journal
Abstract
Objectives: This study investigated the incidence of root dentin defects after the use of different post space preparation (PSP) drills. Materials and Methods: Seventy-two bovine incisors were selected and obtained 14-mm-long root sections. Twelve roots served as controls with no intervention (G1). The 60 root canals remaining were instrumented using the crown-down technique with the ProTaper Next system and obturated using the lateral condensation technique. Specimens were randomly distributed into 5 groups (n = 12) according to the operative steps performed: G2, root canal instrumentation and filling (I+F); G3, I+F and PSP with Gates-Glidden drills; G4, I+FI+F and PSP with Largo-Peeso reamers; G5, I+F and PSP with Exacto drill; and G6, I+F and PSP with WhitePost drill. Roots were sectioned at 3, 6, 9, and 12 mm from the apex, and digital images were captured. The presence of root dentin defects was recorded. Data were analyzed by the χ2 test, with p < 0.05 considered to indicate statistical significance. Results: Root dentin defects were observed in 39.6% of the root sections. No defects were observed in G1. G5 had significantly more cracks and craze lines than G1, G2, and G3 (p < 0.05), and more fractures than G1, G2, G3, and G4 (p < 0.05). When all root sections were analyzed together, significantly more defects were observed at the 12-mm level than at the 3-mm level (p < 0.05). Conclusions: PSP drills caused defects in the root dentin. Gates-Glidden drills caused fewer root defects than Largo-Peeso reamers and Exacto drills.
Keywords
Cracks; Dentin defects; Post space preparation; Root canal therapy; Vertical root fracture;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Borges AH, Damiao MS, Pereira TM, Filho GS, Miranda-Pedro FL, Luiz de Oliveira da Rosa W, Piva E, Guedes OA. Influence of cer vical preflaring on the incidence of root dentin defects. J Endod 2018;44:286-291.
2 Silva EJ, Car valho NK, Prado MC, Senna PM, Souza EM, De-Deus G. Bovine teeth can reliably substitute human dentine in an intra-tooth push-out bond strength model? Int Endod J 2019;52:1063-1069.
3 Nergiz I, Schmage P, Ozcan M, Platzer U. Effect of length and diameter of tapered posts on the retention. J Oral Rehabil 2002;29:28-34.
4 Maddalone M, Gagliani M, Citterio CL, Karanxha L, Pellegatta A, Del Fabbro M. Prevalence of vertical root fractures in teeth planned for apical surger y. A retrospective cohort study. Int Endod J 2018;51:969-974.
5 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;42:208-213.
6 De-Deus G, Belladonna FG, Silva EJ, Souza EM, Car valhal JC, Perez R, Lopes RT, Versiani MA. Micro-CT assessment of dentinal micro-cracks after root canal filling procedures. Int Endod J 2017;50:895-901.
7 Shantiaee Y, Dianat O, Mosayebi G, Namdari M, Tordik P. Effect of root canal preparation techniques on crack formation in root dentin. J Endod 2019;45:447-452.
8 Pedulla E, Genovesi F, Rapisarda S, La Rosa GR, Grande NM, Plotino G, Adorno CG. Effects of 6 single-file systems on dentinal crack formation. J Endod 2017;43:456-461.
9 Shemesh H, Lindtner T, Portoles CA, Zaslansky P. Dehydration induces cracking in root dentin irrespective of instrumentation: a two-dimensional and three-dimensional study. J Endod 2018;44:120-125.
10 Caputo AA, Standlee JP. Pins and posts--why, when and how. Dent Clin North Am 1976;20:299-311.
11 Arslan H, Karatas E, Capar ID, Ozsu D, Doganay E. Effect of ProTaper Universal, Endoflare, Revo-S, HyFlex coronal flaring instruments, and Gates Glidden drills on crack formation. J Endod 2014;40:1681-1683.
12 Kim HC, Lee MH, Yum J, Versluis A, Lee CJ, Kim BM. Potential relationship between design of nickel-titanium rotar y instruments and vertical root fracture. J Endod 2010;36:1195-1199.
13 Shori DD, Shenoi PR, Baig AR, Kubde R, Makade C, Pandey S. Stereomicroscopic evaluation of dentinal defects induced by new rotar y system: "ProTaper NEXT". J Conser v Dent 2015;18:210-213.
14 Ashwinkumar V, Krithikadatta J, Surendran S, Velmurugan N. Effect of reciprocating file motion on microcrack formation in root canals: an SEM study. Int Endod J 2014;47:622-627.
15 Adorno CG, Yoshioka T, Jindan P, Kobayashi C, Suda H. The effect of endodontic procedures on apical crack initiation and propagation ex vivo. Int Endod J 2013;46:763-768.
16 De Bruyne MA, De Moor RJ. SEM analysis of the integrity of resected root apices of cadaver and extracted teeth after ultrasonic root-end preparation at different intensities. Int Endod J 2005;38:310-319.
17 Rose E, Svec T. An evaluation of apical cracks in teeth undergoing orthograde root canal instrumentation. J Endod 2015;41:2021-2024.
18 Adl A, Sedigh-Shams M, Majd M. The effect of using RC prep during root canal preparation on the incidence of dentinal defects. J Endod 2015;41:376-379.
19 Versiani MA, Souza E, De-Deus G. Critical appraisal of studies on dentinal radicular microcracks in endodontics: methodological issues, contemporar y concepts, and future perspectives. Endod Topics 2015;33:87-156.
20 Kansal R, Rajput A, Talwar S, Roongta R, Verma M. Assessment of dentinal damage during canal preparation using reciprocating and rotary files. J Endod 2014;40:1443-1446.
21 Fonseca RB, Haiter-Neto F, Carlo HL, Soares CJ, Sinhoreti MA, Puppin-Rontani RM, Correr-Sobrinho L. Radiodensity and hardness of enamel and dentin of human and bovine teeth, var ying bovine teeth age. Arch Oral Biol 2008;53:1023-1029.
22 Aboud LR, Santos BC, Lopes RT, Viana LA, Scelza MF. Effect of aging on dentinal crack formation after treatment and retreatment procedures: a micro-CT study. Braz Dent J 2018;29:530-535.
23 Alberto Rubino G, de Miranda Candeiro GT, Gonzales Freire L, Faga Iglecias E, de Mello Lemos E, Luiz Caldeira C, Gavini G. Micro-CT evaluation of gutta-percha removal by two retreatment systems. Iran Endod J 2018;13:221-227.
24 Capar ID, Uysal B, Ok E, Arslan H. Effect of the size of the apical enlargement with rotar y instruments, single-cone filling, post space preparation with drills, fiber post removal, and root canal filling removal on apical crack initiation and propagation. J Endod 2015;41:253-256.
25 Chai H, Tamse A. Fracture mechanics analysis of vertical root fracture from condensation of gutta-percha. J Biomech 2012;45:1673-1678.
26 Ghoddusi J, Bagherpour A, Mahmudabadi F, Forghani M, Sarmad M. Residual dentin thickness of bifurcated maxillar y premolars following two post space preparation methods. Iran Endod J 2013;8:94-98.
27 Capar ID, Saygili G, Ergun H, Gok T, Arslan H, Ertas H. Effects of root canal preparation, various filling techniques and retreatment after filling on vertical root fracture and crack formation. Dent Traumatol 2015;31:302-307.
28 Cecchin D, Farina AP, Guerreiro CA, Carlini-Junior B. Fracture resistance of roots prosthetically restored with intra-radicular posts of different lengths. J Oral Rehabil 2010;37:116-122.
29 Ari H, Erdemir A, Belli S. Evaluation of the effect of endodontic irrigation solutions on the microhardness and the roughness of root canal dentin. J Endod 2004;30:792-795.
30 Souza EM, Bretas RT, Cenci MS, Maia-Filho EM, Bonetti-Filho I. Periapical radiographs overestimate root canal wall thickness during post space preparation. Int Endod J 2008;41:658-663.
31 Coelho MS, Card SJ, Tawil PZ. Visualization enhancement of dentinal defects by using light-emitting diode transillumination. J Endod 2016;42:1110-1113.
32 Aksoy C, Keris EY, Yaman SD, Ocak M, Geneci F, Celik HH. Evaluation of XP-endo Shaper, Reciproc Blue, and ProTaper Universal systems on dentinal microcrack formation using micro-computed tomography. J Endod 2019;45:338-342.
33 Shemesh H, Wesselink PR, Wu MK. Incidence of dentinal defects after root canal filling procedures. Int Endod J 2010;43:995-1000.
34 Topcuoglu HS, Demirbuga S, Tuncay O, Pala K, Arslan H, Karatas E. The effects of Mtwo, R-Endo, and D-RaCe retreatment instruments on the incidence of dentinal defects during the removal of root canal filling material. J Endod 2014;40:266-270.
35 Lim H, Li FC, Friedman S, Kishen A. Residual microstrain in root dentin after canal instrumentation measured with digital moire interferometr y. J Endod 2016;42:1397-1402.
36 Cicek E, Kocak MM, Saglam BC, Kocak S. Evaluation of microcrack formation in root canals after instrumentation with different NiTi rotary file systems: a scanning electron microscopy study. Scanning 2015;37:49-53.
37 De-Deus G, Belladonna FG, Souza EM, Silva EJ, Neves AA, Alves H, Lopes RT, Versiani MA. Micro-computed tomographic assessment on the effect of ProTaper Next and Twisted file adaptive systems on dentinal cracks. J Endod 2015;41:1116-1119.