scholarly journals Apical Leakage Evaluation of Two Different Coated Carrier Systems for Root Canal Obturation Using a Dye Penetration Evaluation Method

2021 ◽  
Vol 22 (9) ◽  
pp. 979-984
Author(s):  
Antonio Signore ◽  
Andrea Amaroli ◽  
Luca Solimei ◽  
Andrea Polesel ◽  
Francesco Favaro ◽  
...  
2011 ◽  
Vol 58 (1) ◽  
pp. 29-34 ◽  
Author(s):  
Radmila Arbutina ◽  
Aleksandra Djeri ◽  
Natasa Gajic ◽  
Zorica Trnic ◽  
Natasa Trtic

Introduction. Obturation of the root canal is the final phase of endodontic therapy and it is usually used to assess the quality of endodontic treatment. The objective of this study was to examine the quality of apical sealing of the root canal after application of chemically softened gutta-percha. Material and Methods. Thirty extracted single rooted and multi rooted teeth, divided into two groups according to the material for obturation, were used in the study. After root canal instrumentation using step-back technique, obturation was completed using chemically softened gutta-percha and AH Plus and Apexit paste. The effect of apical sealing was assessed regarding the type of material used for the obturation. After obturation, teeth were coated with two coats of varnish and immersed in 50% solution of silver nitrate for twelve hours, and then longitudinally cut using diamond disc. Linear dye penetration was observed using light microscope and twenty five times magnification. The apical leakage was calculated using the measuring scale, previously mounted on microscope lens. Results. The results showed that the average penetration of silver nitrate in single rooted teeth obturated with the AH Plus paste was 132.8 ?m, while in teeth obturated with Apexit, it was 148.6 ?m. The difference was not statistically significant. Apical leakage in multi rooted teeth obturated with softened gutta-percha and AH Plus paste was 117.3 ?m while in teeth obturated with Apexit, it was 158.5 ?m. The difference was statistically significant. Conclusion. The lowest dye penetration in the apical portion of the canal was observed in multi rooted teeth obturated with AH Plus paste and the highest penetration of silver nitrate was in multi rooted teeth obturated with Apexit paste.


1989 ◽  
Vol 119 (5) ◽  
pp. 633-637 ◽  
Author(s):  
Richard G. Beatty ◽  
Philip S. Baker ◽  
James Haddix ◽  
Fred Hart

2004 ◽  
Vol 51 (2) ◽  
pp. 77-82
Author(s):  
Dragan Ilic

The purpose of the study was to present and discuss the thermomechanical hybrid technique in root canal obturation and investigate the efficiency of apical hermeticity. The hybrid obturation technique is well explained and performed through the lexan models and extracted teeth in aim of better visualisation and comprehension as suggested by the author Tagger and McSpadden?s articles. The technique consisted of lateral condensation of gutta-percha that was followed by thermomechanical compaction of the same mass using Ni-Ti flexible compactor. Firstly the master gutta-percha cone had to be adapted and then the master machine compactor selected for setting inside the canal. Upon laterally arranging gutta-percha cones, the master compactor was inserted between canal wall and gutta-percha. The master compactor was rotated for 5-6 seconds to creat heat to soften the cones to merge themselves and fill the first half of the canal. The bigger compactor served to fill the rest of the canal adding more gutta-percha cones. In comparison to the single cone and simple manual compaction techniques the hybrid technique is less time consuming more efficient in homogenicity and apical leakage. Considering the many device-consuming techniques the hybrid one is simpler to perform and cheaper as well. Precaution is to be taken when treating curved and narrow canals where much patience is needed due to possible compactor breakage and root fracture. It can be concluded that this hybrid technique is preferable particularly in cases of relatively straight canals with preserved apical foramen when time is to be saved for the radiographic and prosthetics procedure that has to be done during the same visit, which is very often convenient for patient and therapist.


2019 ◽  
pp. 101-105
Author(s):  
Thi Ngoc Giang Huynh ◽  
Anh Chi Phan

Microleakage can result in failure of endodontic treatment. An important characteristic of endodontic sealer is sealing ability. The aim of this experimental study was to compare the apical leakage of teeth obturated with single-cone and warm vertical condensation techniques using three different sealers (Cortisomol, AH Plus, Apexit Plus). Materials and Methods: Sixty extracted human lower premolar teeth were selected and randomly assigned to six groups (n = 10), according to the root canal sealer and technique used for obturation: (A) Single-cone technique with Cortisomol; (B) Single-cone technique with AH Plus; (C) Single-cone technique with Apexit Plus; (D) Warm vertical condensation technique with Cortisomol; (E) Warm vertical condensation technique with AH Plus; (F) Warm vertical condensation technique with Apexit Plus. The teeth were immersed in India ink for seven days and clarified using methyl salicylate. The extent of apical dye penetration was measured with a measuroscope in all aspects of the canal. Results: The mean penetration length of dye in Cortisomol, AH Plus and Apexit Plus samples were 0.85, 0.98 and 0.58 mm, respectively. The differences between three groups were not significant (p > 0.05); also, the mean dye penetration in obturating with single-cone and warm vertical condensation techniques using Cortisomol, AH Plus, Apexit Plus was not significantly different. Conclusion: Cortisomol, AH Plus, Apexit Plus were similarly effective in prevention of apical microleakage. Differences in the mean dye penetration between the groups which were obturated with Single-cone and warm vertical condensation were not statistically significant. Key words: Microleakage, single-cone, warm vertical condensation, Cortisomol, AH Plus, Apexit Plus


2008 ◽  
Vol 22 (3) ◽  
pp. 211-215 ◽  
Author(s):  
Patricia Gimenez Oddoni ◽  
Isabel Mello ◽  
Jeffrey Martin Coil ◽  
João Humberto Antoniazzi

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