Retrievability of thermafil plastic cores using organic solvents

Ibarrola, Jose L.; Knowles, Kenneth I.; Ludlow, Marvin O.

doi:10.1016/s0099-2399(06)81509-8

Cited by 20 publications

(8 citation statements)

References 6 publications

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“…On the other hand, Imura et al (1993) have shown that in 14 of 15 teeth obturated with Thermafil with plastic carriers, it was possible to remove them and retreat the canals. Similar results were shown by Ibarrola et al (1993) who demonstrated that in 19 of 20 teeth obturated with plastic carriers, these could be removed. No important differences were shown by these authors when chloroform, halothane and xylene were used as solvents.…”

Section: Discussionsupporting

confidence: 85%

Comparative study of retreatment of Thermafil and lateral condensation endodontic fillings

et al. 1998

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The aim of the present study was to evaluate the possibility of retreating teeth obturated with: (i) Thermafil with plastic carrier, (ii) Thermafil with metallic carrier and (iii) laterally condensed gutta-percha. The following aspects were analysed: removal of obturation, time required for removal, remaining filling material and apical extrusion during reinstrumentation. Thirty human teeth with a single canal were instrumented up to a size 45 K-type file, divided into three groups of 10 teeth each and obturated with Thermafil with plastic carrier (group 1), Thermafil with metallic carrier (group 2), and laterally condensed gutta-percha (group 3) with AH26 as the sealer. Reinstrumentation was performed manually after 30 days storage using Hedstroem files and xylene as a solvent. The average time needed to remove the obturation was 12 min 1 s for group 1, 14 min 36 s for group 2 and 11 min 26 s for group 3. Although no statistically significant differences were observed between groups 1 and 2, and 1 and 3 (P > 0.05), the differences between groups 2 and 3 were significant (P < 0.05). The amount of remaining filling material was significantly higher in group 2 when compared with groups 1 and 2 (P < 0.01). Although the lowest incidence of apical extrusion during reinstrumentation was found in group 3, the differences among groups were not statistically significant.

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Section: Discussionsupporting

confidence: 85%

Comparative study of retreatment of Thermafil and lateral condensation endodontic fillings

et al. 1998

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“…Other methods proposed to remove the carriers include hand instruments (6,15), solvents (7,16), and heat (8). A recent study using 0.04-taper Profile rotary instruments at 300 rpm in a crown-down manner showed that the removal of the carrier was successful in all the specimens, taking about 5 minutes each to remove (9).…”

Section: Discussionmentioning

confidence: 99%

Comparison of Removal Times of Thermafil Plastic Obturators Using ProFile Rotary Instruments at Different Rotational Speeds in Moderately Curved Canals

Royzenblat¹,

Goodell²

2007

Journal of Endodontics

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“…(1998). The presence of a plastic carrier (group I) increased the average time needed to remove the filling material from the root canal (Bertrand et al. 1997, Ibarrola et al.…”

Section: Discussionmentioning

confidence: 99%

Efficiency of the 0.04 taper ProFile during the re-treatment of gutta-percha-filled root canals

2002

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Retrievability of thermafil plastic cores using organic solvents

Cited by 20 publications

References 6 publications

Comparative study of retreatment of Thermafil and lateral condensation endodontic fillings

Comparative study of retreatment of Thermafil and lateral condensation endodontic fillings

Comparison of Removal Times of Thermafil Plastic Obturators Using ProFile Rotary Instruments at Different Rotational Speeds in Moderately Curved Canals

Efficiency of the 0.04 taper ProFile during the re-treatment of gutta-percha-filled root canals

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