Dentinal tubule penetration of root canal sealers after root canal dressing with calcium hydroxide

Çalt, Semra; Serper, Ahmet

doi:10.1016/s0099-2399(99)80273-8

Cited by 185 publications

(180 citation statements)

References 12 publications

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“…15 In the present study, however, this efficiency with regard to removing the calcium hydroxide medication (Calen ® ) used, was not observed. According to Margelos et al 16 , many questions relating to the use of Ca(OH) 2 as an intracanal medication still have to be answered.…”

Section: Discussioncontrasting

confidence: 69%

“…With the purpose of removing the Ca(OH) 2 , before the filling procedure, the canal was irrigated with EDTA followed by irrigation with NaOCl, and these materials were used by virtue of the findings of Calt and Serper in 1999, 15 who achieved complete removal of Ca(OH) 2 from the canals, making it possible for the cement to penetrate into the dentinal tubules. 15 In the present study, however, this efficiency with regard to removing the calcium hydroxide medication (Calen ® ) used, was not observed.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of Interference of Calcium Hydroxide-based Intracanal Medication in Filling Root Canal Systems

Vilela¹,

Neto²,

Villela³

et al. 2011

The Journal of Contemporary Dental Practice

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Aim:To evaluate the interference of the intracanal medication Calen ® (SSWhite, São Paulo, Brazil) on the filling of simulated lateral canals. Materials and methods:Twenty human anterior teeth were used. Before the endodontic filling procedures the access of cavity was made, and after this root canals were made in all the teeth to simulate the presence of lateral canals. After preparation, the teeth were randomly divided into two groups (n=10). In group I, the root canal system was filled directly after chemicalmechanical preparation; in group II, endodontic treatment was performed in multiple sessions, and after preparation the calcium hydroxide-based intracanal medication Calen ® was inserted. After the period of 7 days, the root canals were vigorously irrigated and then they were filled. Next, the teeth were radiographed to verify the quality of the filling. Results:The results demonstrated that the teeth treated in a single session, without calcium hydroxide medication, presented 47 canals out of 60 with radiographic evidence of filling, whereas the teeth in which intracanal medication was used, only 07 presented a radiographic image compatible with filling (p < 0.05). Conclusion:The use of the calcium hydroxide-based medication Calen made it difficult to obtain a hermetic filling of the root canal system. Clinical significance:The clinical significance of this work basing on the fact that once the dentist knowing that property obliteration of calcium hydroxide can be taken care when they are used in the presence of lateral canals.

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Section: Discussioncontrasting

confidence: 69%

Section: Discussionmentioning

confidence: 99%

Evaluation of Interference of Calcium Hydroxide-based Intracanal Medication in Filling Root Canal Systems

Vilela¹,

Neto²,

Villela³

et al. 2011

The Journal of Contemporary Dental Practice

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“…Entretanto, para excluir qualquer interferência negativa entre medicamento e material obturador, e para garantir a qualidade da obturação, todos os resíduos de Ca(OH) 2 devem ser retirados das paredes do canal antes da obturação [4][5][6][7][8][9][10][11][12] .…”

Section: Introdução O Hidróxido De Cálcio [Ca(oh)unclassified

Eficácia da irrigação ultrassônica passiva na remoção de hidróxido de cálcio

Zart

Michelon

Zanatta

et al. 2014

Rev. odontol. UNESP

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ResumoIntrodução: Remanescentes de Hidróxido de Cálcio [Ca(OH) 2 ] podem interferir na qualidade da obturação endodôntica. Objetivo: Avaliar a eficácia da Irrigação Ultrassônica Passiva (IUP) associada à técnica convencional na remoção de medicação intracanal à base de Ca(OH) 2 . Metodologia: Trinta dentes humanos anteriores monorradiculares foram usados. Os canais radiculares foram preparados com instrumentos manuais tipo K e preenchidos com medicação intracanal à base de Ca(OH) 2 , contendo PMCC e propilenoglicol. Após sete dias, a pasta de Ca(OH) 2 foi removida de todos os canais radiculares com um instrumento manual e irrigação de NaOCl 1% com seringa. Os espécimes foram randomizados em dois grupos (n=12) de acordo com a irrigação final: Irrigação Manual -agitação manual de EDTA 17 % e irrigação de NaOCl 1%; IUP -agitação ultrassônica de NaOCl 1% (três ativações de 20s) seguida da ativação de EDTA 17% por 1 min. O Grupo Controle (n=6) não recebeu medicação intracanal. Todos os espécimes foram clivados e a quantidade de Ca(OH) 2 remanescente foi calculada com o auxílio do estereomicroscrópio (20×). Os testes Kruskall-Wallis e Wilcoxon foram utilizados para avaliar a porcentagem de Ca(OH) 2 remanescente. Resultado: O grupo da IUP apresentou, estatisticamente, as menores porcentagens de Ca(OH) 2 remanescente, quando comparado ao grupo da Irrigação Manual, independentemente dos terços analisados (P < 0,05). O terço apical apresentou a maior quantidade de medicação residual, em ambos os grupos (P < 0,05). Conclusão: A associação da IUP com a técnica convencional demonstrou ser mais eficiente na remoção de medicação intracanal à base de Ca(OH) 2 do que a combinação da Irrigação Manual com a técnica convencional.Descritores: Hidróxido de cálcio; ultrassom; irrigação. AbstractIntroduction: Remnants of calcium hydroxide (Ca(OH) 2 ) can interfere in the quality of endodontic treatment. Aim: Evaluate the efficacy of Passive Ultrasonic Irrigation (PUI) associated with the conventional technique in removing intracanal medication Ca(OH) 2 -based. Methodology: Thirty monoradiculares anterior human teeth were used. The root canals were prepared with manual instruments type K and filled with intracanal medication Ca(OH) 2 -based containing CMCP and propylene glycol. After 7 days, Ca(OH) 2 was removed of all root canal with a manual instrument and irrigation of the 1% NaOCl with syringe. The specimens were randomly divided into two groups (n=12) according to the final irrigation: Manual Irrigation -manual agitation of 17% EDTA and 1% NaOCl irrigation; PUI -ultrasonic agitation of NaOCl 1% (3 activations of 20s) followed by activation of 17% EDTA for 1 min. The control group (n=6) received no medication. All the specimens were cleaved and the amount of Ca(OH) 2 remaining was calculated with the auxiliary of estereomicroscrópio (20×). Kruskall-Wallis tests and Wilcoxon tests were used to evaluate the percentage of Ca(OH) 2 remaining. Result: The group of PUI showed statistically the lowers percentages of Ca(OH) 2 when compared ...

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“…5 However, before the root canal can be filled, the dressing on the canal must first be removed. 6 Calcium hydroxide residues on the canal walls interfere negatively in endodontic treatment prognosis, 7 influence dentine bond strength, 8 affect the adhesion of the endodontic filling material to the root canal walls 9 and the penetration of sealers into dentinal tubules, 10 and react chemically with the sealer, interfering with its physical properties. 11,12 Several techniques have been proposed to remove the calcium hydroxide dressing from the root canal system, including the use of endodontic hand files, 13 sonic activation, 14 passive ultrasonic irrigation, 6,15 the CanalBrush System 6 and nickel-titanium rotary instruments.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of NiTi rotary instruments in removing calcium hydroxide dressing residues from root canal walls

et al. 2012

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The aim of this study was to evaluate the efficacy of three rotary instrument systems (K3, ProTaper and Twisted File) in removing calcium hydroxide residues from root canal walls. Thirty-four human mandibular incisors were instrumented with the ProTaper System up to the F2 instrument, irrigated with 2.5% NaOCl followed by 17% EDTA, and filled with a calcium hydroxide intracanal dressing. After 7 days, the calcium hydroxide dressing was removed using the following rotary instruments: G1 -NiTi size 25, 0.06 taper, of the K3 System; G2 -NiTi F2, of the ProTaper System; or G3 -NiTi size 25, 0.06 taper, of the Twisted File System. The teeth were longitudinally grooved on the buccal and lingual root surfaces, split along their long axis, and their apical and cervical canal thirds were evaluated by SEM (×1000). The images were scored and the data were statistically analyzed using the Kruskall Wallis test. None of the instruments removed the calcium hydroxide dressing completely, either in the apical or cervical thirds, and no significant differences were observed among the rotary instruments tested (p > 0.05).

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Dentinal tubule penetration of root canal sealers after root canal dressing with calcium hydroxide

Cited by 185 publications

References 12 publications

Evaluation of Interference of Calcium Hydroxide-based Intracanal Medication in Filling Root Canal Systems

Evaluation of Interference of Calcium Hydroxide-based Intracanal Medication in Filling Root Canal Systems

Eficácia da irrigação ultrassônica passiva na remoção de hidróxido de cálcio

Efficacy of NiTi rotary instruments in removing calcium hydroxide dressing residues from root canal walls

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