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Marginal gaps and voids using two warm compaction techniques and different sealers: a micro-CT study

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Abstract

Objective

To assess the percentage of marginal gaps and voids in oval-shaped canals obturated by using two warm compaction techniques with a Bio-C sealer and AH Plus Jet.

Materials and methods

Forty canines with oval canals were scanned by microcomputed tomography (micro-CT), and root canal preparation was performed with an XP-endo Shaper system and irrigated with 5.25% sodium hypochlorite. Then, the specimens were paired into four groups (n=10) according to the root canal filling technique and endodontic sealer: Bio-C sealer and continuous wave of condensation, Bio-C sealer and Tagger’s hybrid, AH Plus Jet and continuous wave of condensation, and AH Plus Jet and Tagger’s hybrid. After root canal filling, a new scan was performed. The percentage of marginal gaps and voids was calculated with the ImageJ software, and the data were analyzed statistically using two-way ANOVA and Tukey tests, with a significance level of 5%.

Results

The percentage of marginal gaps was significantly lower in the Bio-C sealer than in AH Plus Jet (p=0.021) regardless of the technique. However, no difference was found in the percentage of voids between root canal filling techniques and the endodontic sealer (p>0.05).

Conclusion

Both sealers and techniques demonstrated good quality of root canal filling. However, the use of the Bio-C sealer enhanced the filling ability by reducing marginal gaps, regardless of the root canal filling technique.

Clinical relevance

This study highlights the better performance of the Bio-C sealer in the quality of the root canal filling, reducing marginal gaps when compared to AH Plus Jet independent of the technique.

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Data Availability

The data will be available if requested to the corresponding author.

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Funding

This study was supported by the Fundação de Amparo à Pesquisa do Estado de Minas Gerais and the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-Brasil (CAPES) “Finance cod 001.”

Author information

Authors and Affiliations

  1. Department of Dentistry, Pontifical Catholic University of Minas Gerais (PUC-MG), Minas Gerais, Belo Horizonte, Brazil

    Caroline Felipe Magalhães Girelli, Frank Ferreira Silveira & Eduardo Nunes

  2. Department of Dentistry, Federal University of Juiz de Fora, R. São Paulo, 745 - Centro, Governador Valadares, Minas Gerais, 35010-180, Brazil

    Carolina Oliveira de Lima & Mariane Floriano Lopes Santos Lacerda

Authors
  1. Caroline Felipe Magalhães Girelli
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  2. Carolina Oliveira de Lima
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  3. Frank Ferreira Silveira
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  4. Mariane Floriano Lopes Santos Lacerda
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  5. Eduardo Nunes
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Contributions

Girelli CFO—conceptualization, methodology, investigation, writing—review and editing, project administration, and supervision.

Lima CO—contributed to micro-CT analysis, writing—review and editing, and validation.

Silveira FF—conceptualization, methodology, and writing—review and editing.

Lacerda MFLS—conceptualization, methodology, writing—review and editing, and supervision.

Nunes E—conceptualization, methodology, writing—review and editing, project administration, and supervision.

Corresponding author

Correspondence to Mariane Floriano Lopes Santos Lacerda.

Ethics declarations

Ethical approval

This study was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards and approved by the Research Ethics Committee (number: 4.861.595).

Competing interests

The authors declare no competing interests.

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Girelli, C.F.M., de Lima, C.O., Silveira, F.F. et al. Marginal gaps and voids using two warm compaction techniques and different sealers: a micro-CT study. Clin Oral Invest 27, 2805–2811 (2023). https://doi.org/10.1007/s00784-023-04866-x

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  • DOI: https://doi.org/10.1007/s00784-023-04866-x

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