Browse > Article
http://dx.doi.org/10.5395/JKACD.2005.30.2.095

EFFECT OF CANAL TAPERING IN TEETH OF VARIOUS APICAL SIZE & CROSS-SECTIONAL CONFIGURATION ON MICROLEAKAGE  

Kim, Jung-Hee (Department of Conservative Dentistry, School of Dentistry, Chonbuk National University)
Lee, Kyung-Ha (Department of Conservative Dentistry, School of Dentistry, Chonbuk National University)
Lee, Se-Joon (Department of Conservative Dentistry, School of Dentistry, Chonbuk National University)
Yu, Mi-Kyung (Department of Conservative Dentistry, School of Dentistry, Chonbuk National University)
Lee, Kwang-Won (Department of Conservative Dentistry, School of Dentistry, Chonbuk National University)
Publication Information
Restorative Dentistry and Endodontics / v.30, no.2, 2005 , pp. 95-101 More about this Journal
Abstract
The aim of this study was to evaluate the microleakage of teeth according to root canal preparation with & without apical enlargement in various size of apical foramen. 60 extracted one canal roots were cross-cutted at 5 mm from root apex and divided into two groups according to their apical foramen size of large (L) and small (S). Each group was subdivided into two groups accordance with their cross-sectional configuration at 5 mm from apex, round (R) and ovoid (O); SR Group, SO Group LR Group, LO Group. Each group was shaped in .02 taper by Quantec series Nickel-Titanium (NiTi) rotary file, obturated by lateral condensation method. Leakage was measured using a fluid transport model under 40 $cmH_2O$ pressure. After the leakage test, blocks which had showed the leakage retreated with .04 taper and ,06 taper and evaluated the degree of fluid filtration in each group. The data was analysed statistically using chi-square test and fisher's exact test. The results obtained were as follows : 1. Significant difference in leakage was found in groups which had different apical foramen size in .02 taper instrumentation (p < 0.05), but not in .04 taper instrumentation (p > 0.05) 2. The difference in microleakage according to the shape of canal was not evident at 5 mm from apex (p > 0.05). 3. There was correlation between .02 taper instrumentation and .04 taper instrumentation in LR group, LO group (p < 0.05).
Keywords
Fluid filtration; Apical size; Cross sectional configuration; Taper;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Grossman L. Endodontic practice. 10th ed. philadelphia:Lea & Febiger, 207, 1985
2 Cohen S, Burns R. Passway of the pulp. 6th ed. St.Louis: CV Mosby, 179-218, 1994
3 Wu MK, and Wesselink PR. Endodontic leakage studies reconsidered. part1. Methodology, application and relevance. Int Endod J 26:37-43, 1993   DOI   ScienceOn
4 Ingle JI, Beveridge EE, Glick DH, Weighman JA, Abourass M. Mordern endodontic therapy. The Washington study. Int Endod Philadelphia 27-49, 1985
5 Kerekes K, Tronstad L. Morphomeric observation on root canals of human anterior teeth. J Endod 3:24-29, 1997   DOI   ScienceOn
6 Kerekes K. Tronstad L. Morphomeric observation on root canals of human molar. J Endod 3:114-118, 1997   DOI   ScienceOn
7 Clyde L. A standard predetermined endodontic preparation concept. Compendium 12:656-660, 1991
8 Wu MK, Wesselink PR, Moorer WR. Fluid transport and bacterial penetration along root canal fillings. Int Endod J 26:203-208, 1993   DOI   ScienceOn
9 Weine FS. Endodontic Therapy. 5th ed. .Mosby.14. 317, 435-436, 1996
10 Walton R, Torabinejad M. Principles and practice of endodontics. 2nd ed. philadelphia:WB Saunder, 201-233, 1996
11 De Moor R, Hommez G. The importance of apical and coronal leakage in the success or failure of endodontic treatment. Rev. Belge Med Den. 55:334-344, 2000
12 Lussi A, Imwinkelried S, Hotz P, Grosrey J. Long-term obturation quality using noninstrumentation thechnology. J Endod 26:491-493, 2000   DOI   ScienceOn
13 Kerekes K, Tronstad L. Morphomeric observation on root canals of human anterior teeth. J Endod 3:24-29, 1997   DOI   ScienceOn
14 Mccomb D, Smith DC. A preliminary scanning electron microscopic study of root canal after endodontic procedures. J Endod 1:238-242, 1975   DOI   ScienceOn
15 Nagy CD. The effect of root canal morphology on canal shape following instrumentation using dfferent techniques. Inter Endod J 30:133-140, 1997   DOI   ScienceOn
16 Buchanan LS. The standardized-taper root canal preparation-part 2. Int Endod J 34:63-71, 2001   DOI   PUBMED   ScienceOn
17 Love RM. The effect of tissue molecules on bacterial invasion of dentine. Oral Microbiol Immunol 17:32-37, 2002   DOI   PUBMED   ScienceOn
18 Saunder WP, Saunder EM. Coronal leakage as a cause of failure in root canal therapy: a review. Endod Dent Traumatol 10:105-108, 1994   DOI
19 Outhwaite WC, Livingston MJ, Pashley DH. Effects of changes in surface area, thickness, temperature and post-extration time on human dentine permeability. Arch Oral Biol 21:599-603, 1976   DOI   ScienceOn
20 Coldero LG, Mchugh S, Saunders WP. Reduction in intracanal bacteria during root canal preparation with and without apical enlarement. Int Endod J 35:437-446, 2002   DOI   ScienceOn
21 Schilder H. Cleaning & shaping the root canal. Dent Clin North Am 18:269, 1974
22 Torabinejad M, Ung B, Kettering JD. In vitrobacterial penetration of coronally unsealed endodontically treated teeth. J Endod 16:566-9, 1990   DOI   ScienceOn
23 임성삼. 임상근관치료학. 제2판. 서울대치과대학. 의치학사. p131, 1999
24 Pashley DH, Andringa HJ, Derkson GD, Derkson ME, aKalathoor SR. Resional variability in the permeability of human dentine. Arch Oral Biol 32:519-523, 1987   DOI   ScienceOn
25 Ingle J, Bakland L. Endodontics. 4th ed. Philadelphia:Lea&Febiger, 92-227, 1994
26 Lussi A, Messerli L, Hotz P, Grosrey J. A new noninstrumental technique for cleaning and filling root canal. Int Endod J 28:1-6, 1995   DOI   ScienceOn
27 Pommel L, Camps J. Effect of Pressure and Mesurement time on the fluid filtratiom method in endodontics. J Endod 27:256-258, 2001   DOI   ScienceOn
28 Allison CA, Weber CR, Walton RE. The influence of the method of canal preparation on the quality of the apical and coronal obturation. J Endod 5:298, 1979
29 Mauger MJ, Schindler WG, Walker WA. An evaluation of canal morphology at different levels of root resection in mandibular incisors. J Endod 24:607-609, 1998   DOI   ScienceOn
30 Safavi KE, Nichols FG. Effect of calcium hydroxide on bacterial lipopolysacchalide. J Endod 1:76-78, 1993
31 Wu M-K, Wesselink PR. A primary observation on the preparation and obturation in oval canals. Int Endod J 34:137-41, 2001   DOI   ScienceOn
32 Derkson GD, Pashley DH. Derkson ME. Microleakage measurement pf selected restorative material: A new in vitro method. J Prosthet Dent 56:435-440, 1986   DOI   ScienceOn
33 Guldener P, Langeland K. Endodoncia. Diagnosticoy tratamiento. 1a ed. Mexico:Editorial Cuellar, 177, 1995
34 Love RM. Enterococcus faecalis-a mechanism for its role in endodontic faliure. Int Endod J 34,339-405, 2001
35 Wu MK, Wesselink PR, Fluid transport and dye penetration along root canal fillings. Int Endod J 27:233-238, 1994   DOI   ScienceOn
36 Wu MK, Barkis D, Roris A, Wesselink PR. Does the first file to bind correspond to the diameter of the apical region? Int Endod J 35:264-267, 2002   DOI   ScienceOn