Assessment of the deviation after biomechanical preparation of the coronal, middle, and apical thirds of root canals instrumented with three HERO rotary systems

被引：10

作者：

Camara, Andrea Cruz ^{[1
]}

Aguiar, Carlos Menezes ^{[1
]}

Poli de Figueiredo, Jose Antonio ^{[2
]}

机构：

[1] Univ Fed Pernambuco, Fac Dent, Dept Prosthet & Oral & Facial Surg, Recife, PE, Brazil

[2] UCL, Eastman Dent Inst, London, England

来源：

JOURNAL OF ENDODONTICS | 2007年 / 33卷 / 12期

关键词：

instruments; root canal; root canal preparation;

D O I：

10.1016/j.joen.2007.07.029

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The aim of the present study was to assess the risk of deviation of the root canals prepared by 3 HERO rotary systems, used solely or in association, by means of preoperative and postoperative imaging of a cross-section of their coronal, middle, and apical thirds. Fifty mesiobuccal canals of human first molars were randomly divided into 5 groups of 10 specimens each: group A, HERO 642; group B, HERO 642 + HERO Apical; group C, HERO Shaper; group D, HERO Shaper + HERO Apical; group E (control), NitiFlex files. Fisher exact test showed that the differences between the percentages of the presence of deviation and the differences observed between the proportions of instrumented and noninstrumented walls were not statistically significant. No system presented absolute effectiveness, because each of them produced morphologic changes and failed to instrument all the walls of the root canals. A level of significance of .05 was adopted.

引用

页码：1460 / 1463

页数：4

共 27 条

[1] Penetration Depth of Warm Vertical Gutta-Percha Pluggers: Impact of Apical Preparation [J].

Diemer, Franck ;

Sinan, Aline ;

Calas, Paul .

JOURNAL OF ENDODONTICS, 2006, 32 (02) :123-126

[2] Apical extrusion of debris and irrigants using two hand and three engine-driven instrumentation techniques [J].

Ferraz, CCR ;

Gomes, NV ;

Gomes, BPFA ;

Zaia, AA ;

Teixeira, FB ;

Souza, FJ .

INTERNATIONAL ENDODONTIC JOURNAL, 2001, 34 (05) :354-358

[3] A comparison of the minimum canal wall thickness remaining following preparation using two nickel-titanium rotary systems [J].

Garala, M ;

Kuttler, S ;

Hardigan, P ;

Steiner-Carmi, R ;

Dorn, S .

INTERNATIONAL ENDODONTIC JOURNAL, 2003, 36 (09) :636-642

[4] A comparison of Profile, Hero 642, and K3 instrumentation systems in teeth using digital imaging analysis [J].

González-Rodríguez, MP ;

Ferrer-Luque, CM .

ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY, 2004, 97 (01) :112-115

[5] Comparative study of six rotary nickel-titanium systems and hand instrumentation for root canal preparation [J].

Guelzow, A ;

Stamm, O ;

Martus, P ;

Kielbassa, AM .

INTERNATIONAL ENDODONTIC JOURNAL, 2005, 38 (10) :743-752

[6] A comparative study of three different root canal curvature measurement techniques and measuring the canal access angle in curved canals [J].

Günday, M ;

Sazak, H ;

Garip, Y .

JOURNAL OF ENDODONTICS, 2005, 31 (11) :796-798

[7] A comparative study of root canal preparation using FlexMaster and HERO 642 rotary Ni-Ti instruments [J].

Hülsmann, M ;

Gressmann, G ;

Schäfers, F .

INTERNATIONAL ENDODONTIC JOURNAL, 2003, 36 (05) :358-366

[8] A comparative study of root canal preparation with HERO 642 and Quantec SC rotary Ni-Ti instruments [J].

Hülsmann, M ;

Schade, M ;

Schäfers, F .

INTERNATIONAL ENDODONTIC JOURNAL, 2001, 34 (07) :538-546

[9] A comparison of three Ni-Ti rotary instruments in apical transportation [J].

Javaheri, Homan Hossein ;

Javaheri, Ghasem Hossein .

JOURNAL OF ENDODONTICS, 2007, 33 (03) :284-286

[10] Smear layer production by 3 rotary reamers with different cutting blade designs in straight root canals:: A scanning electron microscopic study [J].

Jeon, IS ;

Spångberg, LSW ;

Yoon, TC ;

Kazemi, RB ;

Kum, KY .

ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS, 2003, 96 (05) :601-607

← 1 2 3 →