Browse > Article
http://dx.doi.org/10.5395/JKACD.2003.28.1.050

THE EFFECTS OF EDTA AND PULSED ND:YAG LASER ON APICAL LEAKAGE OF CANAL OBTURATION  

Kwon, Jin-Soo (Department of Conservative dentistry, College of Dentistry, Pusan National University)
Lee, Hee-Joo (Department of Conservative dentistry, College of Dentistry, Pusan National University)
Hur, Bock (Department of Conservative dentistry, College of Dentistry, Pusan National University)
Publication Information
Restorative Dentistry and Endodontics / v.28, no.1, 2003 , pp. 50-56 More about this Journal
Abstract
The purpose of this study was to evaluate the effects of EDTA and pulsed Nd :YAG laser on apical leak-age of canal obturation. Forty-eight single-rooted teeth were used in this study. The teeth were instrumented up to a size 40 K-file and irrigated with 2.5% NaOCl between each fie size. And the teeth were divided into 4 groups. In group A, the root canals were irrigated with a final flush of 5ml 2.5% NaOCl as a control group. The teeth in group B were irrigated with a final flush of 5ml 17% EDTA. The teeth in group C and D were irradiated by pulsed Nd：YAG laser(laser parameters were set at 1W, 100mJ, 10Hz, and 2W, 100mJ, 20Hz respectively). The results were as follows : 1. Apical leakage was observed in 50% of samples in group A, 30% of samples in group B, 20% of samples in group C, and 10% of samples in group D. 2. The teeth in group B had less leakage than group A, but there was no statistically significant differences(p＞0.05). 3. The teeth in group C, D had less leakage than group A, and there was statistically significant differences(p＜0.05). 4. The teeth in group C, D had less leakage than group B, but there was no statistically significant differences(p＞0.05). 5. There was no significant differences in apical leakage between group C and group D(p＞0.05).
Keywords
EDTA; ND:YAG laser; Smear layer; Microleakage;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Vojinovic O. Nyborgh Hand Brannstrom M: Acid treatment of cavities under resin fillings: Bacterial growth in dentinal tubules and pulpal reactions. J Dent Research 52: 1189-93, 1973   DOI   PUBMED   ScienceOn
2 Baker NA, Eleazer PD, Averbach RE and Seltzer S: Scanning electron microscopic study of the efficacy of various irrigation solutions. J Endod 1: 127-35, 1975   DOI   ScienceOn
3 Baumgartner JC and Mader CL: A scanning electron microscopic evaluation of four root canal irrigation regimens. J Endod 13:147-57, 1987   DOI   ScienceOn
4 Williams S and Goldman M: Penetrability of the smeared layer by a strain of Proteus vulgaris. J Endod 11:385-8, 1985   DOI   ScienceOn
5 Goldman M, Goldman LB, Cavaleri R, Bogis J and Lin PS: The efficacy of several irrigation solutions for endodontics: A scanning electron microscopic study: Part II. J Endod 8:487-92, 1982   DOI   ScienceOn
6 Verdelis K, Eliades G, Oviir T and Margelos J: Effect of chelating agents on the molecular composition and extent of decalcification at cervical. middle and apical root dentin locations. Endod Dent Traumatol 15:164-170. 1999   DOI
7 Michelich VJ, Schuster GS and Pashley DH: Bacterial penetration of human dentine in vitro. J Dent Research 59: 1398-403, 1980   DOI   PUBMED   ScienceOn
8 Dederich D, Zakariasen K and Tulip J: Scanning electron microscopic analysis of root canal wall dentin follow Neodymium Yttrium garnet laser irradiation. J Endod 10:428-31, 1984   DOI   ScienceOn
9 Anic I, Segovic S, Katanec D, Prskalo K and NajzarFleger D: Scanning electron microscopic study of dentin lased with argon. CO2, and Nd:YAG laser. J Endod 24:77-81, 1998   DOI   ScienceOn
10 Meryon SD, Jakeman KJ and Browne RM: Penetration in vitro of human and ferret dentine by three bacterial species in relation to their potential role in pulpal inflammation. Int Endod J 19:213-20, 1986   DOI
11 Fraser JG: Chelating agents: Their softening effect on root canal dentin. Oral Surg Oral Med Oral Pathol 37:803-11, 1974   DOI   ScienceOn
12 Saunders WP and Saunders EM: The effect of smear layer upon the coronal leakage of gutta-percha root fillings and a glass ionomer sealer. Int Endod J 25:245-9, 1992   DOI
13 Tani Y and Kawada H: Effects of laser irradiation on dentin. 1. Effect on smear layer. J Dent Mater 6:127-34, 1987   DOI   ScienceOn
14 Saunders WP, Whitters CJ. Strang R. Moseley H. Payne AP and McGadey J: The effect of an Nd:YAG pulsed laser on the cleaning of the root canal and the formation of a fused apical plug. Int Endod J 28:213-20, 1995   DOI   ScienceOn
15 Goya C, Yamazaki R, Tomita Y, Kimura Y and Matsumoto K: Effects of pulsed Nd:YAG laser irradiation on smear layer at the apical stop and apical leakage after obturation. Int Endod J 33:266-71, 2000   DOI   ScienceOn
16 Pashley EL, Birdsong NL, Bowman K and Pashley DH: Cytotoxic effects of NaOCl on vital tissues. J Endod 11:525-8, 1985   DOI   ScienceOn
17 Cergneux M, Ciucchi B, Dietschi JM and Holz J: The influence of smear layer on the sealing ability of canal obturation. Int Endod J 20:228-32, 1987   DOI
18 Diamond A and Carrel R: The smear layer: a review of restorative progress. J Pedodontics 8:219-26, 1984
19 Evans JT and Simon JHS: Evaluation of the apical seal produced by injected thermoplasticized gutta-percha in the absence of smear layer and root canal sealer. J Endod 12:101-7, 1986   DOI   ScienceOn
20 Yamada RS, Armas A, Goldman M and Lin PS: A scanning electron microscopic comparison of a high volume final flush with several irrigation solutions: Part III. J Endod 9:137-42, 1983   DOI   ScienceOn
21 Takeda F, Harashima T, Kimura Y and Matsumoto K: A comparative study of the removal of smear layer by three endodontic irrigants and two types of laser. Int Endod J 32:32-39, 1999   DOI   ScienceOn
22 Kimura Y, Wilder-Smith P and Matsumoto K: Laser in endodontics: a review. Int Endod J 33: 173-185, 2000   DOI   ScienceOn
23 Goldman LB, Goldman M, Kronman JH and Lin PS: The efficacy of several irrigation solutions for endodontics: A scanning electron microscopic study. Oral Surg Oral Med Oral Pathol 52:197-204, 1981   DOI   ScienceOn
24 Levy G: Cleaning and shaping the root canal with a Nd:YAG laser beam: a comparative study. J Endod 18: 123-7, 1992   DOI   ScienceOn
25 Madison S and Krell KV: Comparison of ethylene diamine tetraacetic acid and sodium hypochlorite on the apical seal of endodontically treated teeth. J Endod 10:499-503, 1984   DOI   ScienceOn
26 McComb D and Smith DC: A preliminary scanning electron microscopic study of root canals after endodontic procedures. J Endod 1:238-42, 1975   DOI   ScienceOn
27 Sen BH. Wesselink PR and Turkun M: The smear layer: a phenomenon in root canal therapy. Int Endod J 28: 141-8. 1995   DOI   ScienceOn
28 Harashima T, Takeda FH, Kimura Y and Matsumoto K: Effect of Nd:YAG laser irradiation for removal of intracanal debris and smear layer in extracted human teeth. J Clin Laser Med Surg 15:131-5, 1997
29 Weine FS: Endodontic therapy. 5th edn., St. Louis. Mosby, 1996
30 Kennedy WA, Walker WA and Gough RW: Smear layer removal effects on apical leakage. J Endod 12:21-7, 1986   DOI   ScienceOn