Warning: mkdir(): Permission denied in /home/virtual/lib/view_data.php on line 81

Warning: fopen(upload/ip_log/ip_log_2024-12.txt): failed to open stream: No such file or directory in /home/virtual/lib/view_data.php on line 83

Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/virtual/lib/view_data.php on line 84
Comparison of warm gutta-percha condensation techniques in ribbon shaped canal: weight of filled gutta-percha


Your browser does not support the NLM PubReader view.

Go to this page to see a list of supporting browsers.

Comparison of warm gutta-percha condensation techniques in ribbon shaped canal: weight of filled gutta-percha

Article information

Restor Dent Endod. 2002;27(3):277-283
Publication date (electronic) : 2002 May 31
doi : https://doi.org/10.5395/JKACD.2002.27.3.277
Hyun-Hee Kim, Kyung-Mo Cho, Jin-Woo Kim
Department of Conservative Dentistry, College of Dentistry, Kangnung National University, Kangnung, Korea.

Abstract

The purpose of this study is to evaluate the two warm gutta-percha filling techniques by measuring the weight changes of resin blocks before and after canal filling in ribbon shaped canal. Simulated ribbon shaped root canals in 30 transparent resin blocks were instrumented to #40 using .06 taper Profile. 15 resin blocks were obturated with gutta-percha using cold lateral condensation. Warm lateral condensation using the Endotec II was then accomplished on the same 15 blocks. Another 15 resin blocks were obturated using the System B. All canals were obturated without sealer. The resin blocks were weighed after canal preparation and after each subsequent obturation, and then weight changes of the resin blocks were calculated.

The results were as follows.

1. Warm lateral condensation using Endotec II and continuous wave of condensation using System B produced a denser obturation of gutta-percha compared with conventional cold lateral condensation (p<0.01).

2. There was no significant difference between warm lateral condensation and continuous wave condensation.

In conclusion, the warm gutta-percha condensation techniques like warm lateral condensation and continuous wave condensation can be expected to bring favorable canal obturation results in ribbon shaped canals.

References

1. Nguygen NT. Obturation of the root canal system. Pathway of the pulp 1994. 6th edth ed. St. Louis: Mosby; 219–271.
2. Dow PR, Ingle JI. Isotope determination of root canal failure. Oral Surg 1955. 81100–1104.
3. Schilder H. Filling root canals in three dimensions. Dent Clin North Am 1967. 11723–744.
4. Brayton SM, Davis SR, Goldman M. Gutta-percha root canal fillings, an in vitro analysis. I. Oral Surg 1973. 35226–231.
5. Dang DA, Walton RE. Vertical root fracture and root distortion : effect of spreader design. J Endod 1989. 15294–301.
6. Brothman P. A comparative study of the vertical and lateral condensation of gutta-percha. J Endod 1981. 727–30.
7. Larder TC, Prescott AJ, Brayton SM. Gutta-percha: a comparative study of three methods of obturation. J Endod 1976. 2289–294.
8. Endotec. Endotec Thermal Endodontic Condenser System 1987. Clinical manual;
9. Kersten HW, Fransman R, von Velzen T. Thermomechanical compaction of gutta-percha. I. A comparison of several compaction procedures. Int Endod J 1986. 19125–133.
10. Buchanann LS. The continuous wave of condensation technique : A convergences of conceptual and procedural advance in obturation. Dent Today 1994. 13808284–85.
11. System B heat source model 1005 Instruction guidelines Redconde, WA, USA: Analytic Technology Corp;
12. Davis SR, Brayton SM, Goldman M. The morphology of the prepared root canal : a study utilizing injectable silicone. Oral Surg 1972. 34642–648.
13. Vertucci FJ. Root canal anatomy of the human permanent teeth. Oral Surg 1984. 58589–599.
14. Green D. Double canal in single roots. Oral Surg 1973. 35689–696.
15. Weller RN, Niemczyk SP, Kim S. Incidence and position of the canal isthmus. I. Mesiobuccal root of the maxillary first molar. J Endod 1995. 21380–383.
16. Kerestes K, Rowe AHR. Thermomechanical compaction of gutta-percha root filling. Int Endod J 1982. 1527–35.
17. Kersten HW, Fransman R, von Velzen T. Thermomechanical compaction of gutta-percha II: A comparison with lateral condensation in curved root canal. Int Endod J 1986. 19134–140.
18. Nelson EA, Liewehr FR, West LA. Increased density of gutta-percha using a controlled heat instrunent with lateral condensation. J Endod 2000. 26748–750.
19. Hata G, Kawazoe S, Toda T, Weine FS. Sealing ability of thermoplasticized gutta-percha filling technique as assessed by a new method of determing apical leakage. J Endod 1995. 21167–172.
20. LaCombe JS, Campbell AD, Hicks ML, Pelleu GB. A comparison of the apical seal produced by two thermoplasticized injectable gutta-percha technique. J Endod 1988. 14445–450.
21. DuLac KA, Nielsen CJ, Tomazic TJ, Ferrillo PJ, Hatton JF. Comparison of the obturation of lateral canals by six techniques. J Endod 1999. 25376–380.
22. Reader CM, Himel VT, Germain LP, Hoen MM. Effect of three obturation techniques on the filling of lateral canals and the main canal. J Endod 1993. 19404–408.
23. Veis AA, Molyvdas IA, Lambrianidis TP, Beltes PG. In vitro evaluation of apical leakage of root canal filling after in situ obturation with thermoplasticized and laterally condensed gutta-percha. Int Endod J 1994. 21213–217.
24. Lares C, Eldeeb ME. The sealing ability of the thermafil obturation technique. J Endod 1990. 16474–479.
25. Michailesco PM, Valcarcel J, Grieve AR, Levallois B, Lerner D. Bacterial leakage in endodontics. J Endod 1996. 22535–539.
26. Czonstkowsky M, Michanowicz A, Vazquez JA. Evaluation of an injection of thermoplasticized low temperature gutta-percha using radioactive isotopes. J Endod 1985. 1171–74.
27. Liewehr FR, Kullid JC, Primack PD. Obturation of C-shaped canal using an improved method of warm lateral condensation. J Endod 1993. 19474–477.
28. Liewehr FR, Kullid JC, Primack PD. Improved density of gutta-percha after warm lateral condensation. J Endod 1993. 19489–491.
29. Friedman CM, Sandrik JL, Heuer MA, Rapp GW. Composition and physical properties of gutta-percha endodontic filling materials. J Endod 1977. 3304–308.

Article information Continued

Copyright © 2002 Korean Academy of Conservative Dentistry
(open-access) :

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Fig. 1

Fig. 1

Representative photograph of lateral condensation group at the level 1(1mm from the apex )

Nonhomogeneous gutta-percha filling containing voids between the gutta-percha cones and the canal walls, as well as in isthmus

Fig. 2

Fig. 2

Representative photograph of warm lateral condensation group at the level 1(1mm from the apex )

Homogeneous gutta-percha filling with little void and well filled isthmus

Fig. 3

Fig. 3

Representative photograph of Continuous wave condensation group at the level 1(1mm from the apex )

Homogeneous gutta-percha filling with little void and well filled isthmus

Table 1

Mean weights of filled gutta-percha

Table 1

Table 2

Comparison of gutta-percha weights between groups(ANOVA)

Table 2

Table 3

Post Hoc Test (Tukey HCD)

Table 3