An In-Vitro Comparative Evaluation of Different Obturation Techniques for Simulated Internal Resorptive Cavities
Keywords:
Internal resorptive cavities, hybrid technique, thermo plasticized guttapercha technique, ultrasonicAbstract
Background: To compare and evaluate the quality of obturation in simulated internal resorptive cavities using different guttaperchaobturation techniques namely, hybrid (combination of lateral and vertical compaction), ultrasonic compaction and thermo plasticized guttapercha technique and also to compare radiographic and stereomicroscopic methods to evaluate the quality of obturation.
Materials and Methods: Thirty extracted maxillary central incisors were instrumented at the working length to a #50 file. The roots were sectioned transversely with a diamond disc at 7 mm from the anatomical apex. At the opening of the root canal of each section, hemicircular cavities were drilled with a specially designed bur. The corresponding root sections were cemented with glue, thus obtaining root canals with similar cavities that simulated internal resorption. The specimens were randomly separated into three groups of 10 each. The following obturation techniques were evaluated. Group A: Hybrid technique (combination of lateral and vertical compaction); Group B: Ultrasonic compaction (Satellac); Group C: Injectable thermo plasticized gutta-percha technique (Ultrafil). After obturation, the teeth were radiographed in buccolingual and mesiodistal directions to evaluate the quality of obturation at the Internal Resorptive Cavities (IRC). The incisors were then cut with a scalpel at the same levels as the previous section to examine the type of material that filled the Internal Resorptive Cavities, under a stereomicroscope.
Downloads
References
Nguyen NT. Obturation of root canal system. In Cohen S, Burns RC. Pathways of the
pulp. 4th ed. St Louis: C VMosby. 1987; pp 183
. 2. Walton RE, Torabinezad M. Principle and Practice of endodontics, Philadelphia W B
Saunders. 1984; p. 224.
Frank AL, Weine FS. Non surgical therapy of the perforative defect of internal resorption.
JADA. 1973;87: 863 868.
Stamos DE, Stamos DG. A new treatment modality for internal resorption. J Endod.
;12:315-319.
Wilson PR, Barnes IE. Treatment of internal root resorption with thermo plasticized guttapercha. A case report. IntEndod J. 1987;20:94-97.
Chivian N. Root resorption. In: Cohen S, Burns RC. Pathways of the pulp. 4th ed.
St.Louis. CV Mosby, 1987. p. 511-551.
Caliskan MK, Turkun M. Prognosis of permanent teeth with internal resorption: A clinical
view. Endod Dent Traumatol. 1997;13:75-81.
Goldberg F, Massone EJ, Esmoris M, Alfie D. Comparison of different techniques for
obturating experimental internal resorptive cavities. Endod Dent Traumatol. 2000;16:116-21.
Ozer SY. Diagnosis and treatment modalities of internal and external cervical root
resorption. Review of literature with case reports. Int. Dent Res. 2011;1:32-37.
Cohen S, Berman LH. General Dentistry. Mar/April 2008:194-196.
Mahmoud T, Skobe Z, Trombly PL, Krakow AA. Scanning electron microscopic study of
root canal obturation using thermo plasticized gutta-percha. J Endod. 1988;4(8): 245 250.
Michanowicz AE, Czonstkowsky M, Piesco NP. Low temperature injection gutta-percha.
A scanning electron microscopic investigation. Journal of Endodontics.1986;12(2): 64-67.
Gencoglu N, Yildrim T, Garip Y, Karagens B, Yilmaz H. Effectiveness of different
guttapercha techniques when filling experimental internal resorptive cavities. IntEndod J.
; 41:836-42.
Zmener O, Banegas G. Clinical experience of root canal filling by ultrasonic
condensation of gutta-percha. Endod Dent Traumatol.1999;15:57-59
Downloads
Published
Issue
Section
License
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
