Cytotoxicity evaluation of gutta-percha solvents: Chloroform and GP-Solvent (limonene)

Vajrabhaya, La-ongthong; Suwannawong, Suwanna K.; Kamolroongwarakul, Roongrawee; Pewklieng, Lalita

doi:10.1016/j.tripleo.2004.05.002

Cited by 57 publications

(46 citation statements)

References 12 publications

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“…21 Further, the use of orange oil in endodontics is increasing because of its safety, biocompatibility, and non-carcinogenicity. 22 Although the solvents facilitated filling removal of the material, they also probably contributed to creating a residual filling layer on the canal walls 11 which affected the penetration of the sealer into the dentinal tubules after retreatment, reducing its bond strength in the intraradicular dentin. The solvents might cause alterations on the dentin surface, 3 which could affect the bond strength.…”

Section: A B C Dmentioning

confidence: 99%

Influence of solvents on the bond strength of resin sealer to intraradicular dentin after retreatment

et al. 2017

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Influence of solvents on the bond strength of resin sealer to intraradicular dentin after retreatment Abstract: This study evaluated the removal of filling material with ProTaper Universal Rotary Retreatment system (PTR) combined with solvents and the influence of solvents on the bond strength (PBS) of sealer to intraradicular dentin after canal reobturation. Roots were endodontically treated and distributed to five groups (n = 12). The control group was not retreated. In the four experimental groups, canals were retreated with PTR alone or in combination with xylol, orange oil, and eucalyptol. After filling material removal, two specimens of each group were analysed by SEM and µCT to verify the presence of filling remnants on root canal walls. The other roots were reobturated and sectioned in 1-mm-thick dentin slices that were subjected to the push-out test. Data were analysed by two-way ANOVA and Tukey's test (α = 0.05). SEM and µCT analysis revealed that all retreatment techniques left filling remnants on canal walls. The control group (3.47 ± 1.21) presented significantly higher (p < 0.05) PBS than the experimental groups. The groups retreated with PTR alone (2.59 ± 0.99) or combined with xylol (2.54 ± 0.77) and orange oil (2.32 ± 0.93) presented similar bond strength (p > 0.05), and differed significantly from the group with eucalyptol (1.89 ± 0.63). The solvents reduced the PBS of the sealer to dentin and no retreatment technique promoted complete removal of filling material.

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Section: A B C Dmentioning

confidence: 99%

Influence of solvents on the bond strength of resin sealer to intraradicular dentin after retreatment

et al. 2017

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“…20 In fact, the use of essential oils in Endodontics has increased because they are proven to be safe, biocompatible and noncarcinogenic. 21 For this reason, gutta-percha was removed with orange peel oil in the present clinical case. Additionally, 5.25% sodium hypochlorite was used as irrigating solution and manual K-files of 2 nd and 3 rd series were used.…”

Section: Discussionmentioning

confidence: 98%

Endodontic reintervention with MTA apical plug: a case report

Virgens¹,

Silva²,

Pereira³

et al. 2015

Dental Press Endod

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Introduction: Chemical-mechanical preparation is of crucial importance to a successful endodontic treatment. Endodontic reintervention is indicated in cases of failure and unsuccessful outcomes. In this phase, teeth with external apical resorption require excellent care by the practitioner. In order to overcome these challenges, a biomaterial known as MTA (Mineral Trioxide Aggregate) was incorporated to the world dental market, presenting several indications, such as its use as apical plug. Objective: To report a clinical case of endodontic reintervention with indication of MTA apical plug. Case report: A Caucasian female patient reported sensitivity to palpation and presence of fistula for more than 15 days. Gingivitis and fistula were clinically observed at the bottom of the buccal sac of tooth #21. Radiographically, previous endodontic treatment was poor, presenting intraradicular metal core, external root resorption, and rarefying osteitis limited to the periapical region. Endodontic reintervention of tooth #21 was carried out. Treatment involved three visits for removal of the temporary crown, cast metal core and gutta-percha, in addition to application of intracanal dressing and the use of a MTA apical plug, as well as the application of warm gutta-percha. Thereafter, the patient was referred for definitive rehabilitating treatment. Conclusion: Clinical and radiographic follow-up after eight years revealed periapical repair and re-establishment of masticatory and esthetical functions by means of restorative procedure. Treatment was proven to be efficient in sealing the apical region of the root canal through the use of MTA apical plug; thus, showing the success and advantages of both material and therapeutic modality.

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“…For gutta-percha type filling materials, they are typically dissolved using solvents such as chloroform or eucalyptus oil, followed by using hand files to remove the bulk of dissolved gutta-percha 1) . This is a timeconsuming and inefficient procedure, and some studies have raised the concern about the cytotoxic effects of gutta-percha solvents on periapical periodontal tissues 14,15) . To remove root canal filling materials efficiently, ultrasonic instrumentation 16) and instruments such as Gates-Glidden drills or gutta-percha removers 17) and engine-driven nickel-titanium files have been employed 18,19) .…”

Section: Discussionmentioning

confidence: 99%

Removal of root canal filling materials using Er:YAG laser irradiation

Tachinami

Katsuumi

2010

Dent. Mater. J.

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The purpose of this study was to examine the ability of Er:YAG laser to remove root canal filling materials. The root canals of 21 extracted human anterior teeth were enlarged, and then obturated with gutta-percha points and sealer by lateral condensation. Filling materials were removed from root canals using Er:YAG laser irradiation at three energy output levels (30, 40, and 50 mJ/ pulse), and the corresponding time required for material removal at each energy output level was recorded. The amount of remaining filling material and the degree of dentin ablation in the canal wall were assessed using microfocus X-ray CT before and after removal. At 30 mJ, the time required for root canal filling material removal was significantly longer than at energy outputs of 40 and 50 mJ (p<0.01). On filling material remnants and the degree of dentin ablation, these parameters were not significantly different among the three energy outputs. In conclusion, these results suggested that Er:YAG laser irradiation is capable of removing root canal filling materials.

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Cytotoxicity evaluation of gutta-percha solvents: Chloroform and GP-Solvent (limonene)

Cited by 57 publications

References 12 publications

Influence of solvents on the bond strength of resin sealer to intraradicular dentin after retreatment

Influence of solvents on the bond strength of resin sealer to intraradicular dentin after retreatment

Endodontic reintervention with MTA apical plug: a case report

Removal of root canal filling materials using Er:YAG laser irradiation

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