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Brazilian dentist’s knowledge of minimum intervention dentistry for caries management: application of a developed knowledge scale (MIDDeC-KS) and evaluation of its psychometric properties

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Abstract

Aim

To assess the knowledge of Brazilian dentists about Minimum Intervention (MI) using a Minimum Intervention Dentistry to Dental Caries-Knowledge Scale (MIDDeC-KS) and evaluate its psychometric properties.

Materials and Methods

An online scale was developed to evaluate dentists’ knowledge about MI. The higher the score, the greater the knowledge and vice versa. A preliminary study was carried out with 143 dentists to validate the MIDDeC-KS. For psychometric properties analysis, convergent and discriminant validity, test–retest reliability, and internal consistency of the instrument were assessed. After validation, MIDDeC-KS was applied to a representative sample of Brazilian dentists. T test for independent samples, Chi-square, and/or ANOVA one-way tests were applied.

Results

The MIDDeC-KS convergent (Spearman’s = 0.48) and discriminant (P = 0.001) validity and reliability (ICC = 0.85, α = 0.72 and ω = 0.74) were proved. The participants (n = 637) obtained an overall mean score of 7.4 ± 2.5. The sample was mainly composed of females (P < 0.01), who graduated over 10 years prior (P = 0.02), from public colleges (P < 0.01), and most were pediatric dentists (38.2%). The highest and lowest scores were reached by pediatric dentists (9.2 ± 1.6) and bucomaxillofacial professionals (3.1 ± 2.1), respectively. Brazilian dentists demonstrated more knowledge about diet, biofilm, and topical fluoride control (84.3%), while the Hall technique (31.9%), resin infiltrant (47.6%), and chemical mechanical caries removal (48.4%) were the least known MI techniques.

Conclusion

Brazilian dentists demonstrated more knowledge about preventive measures and less about more recent protocols, such as the Hall technique, resin infiltrant, and chemical mechanical caries tissue removal. Sufficient psychometric evidence of the MIDDeC-KS was found.

Clinical relevance

Identify dentist’s knowledge about MI.

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Data availability

The authors confirm that the data supporting the findings of this study are available within the article.

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Acknowledgements

The authors acknowledge the professionals who worked during the initial evaluation of MIDDeC-KS questions. This study is part of the master’s Dissertation of the first author.

Funding

This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-Brazil (CAPES)-Finance code 001, and Fundação Carlos Chagas de Amparo à Pesquisa no Estado do Rio de Janeiro (FAPERJ).

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Authors and Affiliations

  1. Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, Universidade Federal Do Rio de Janeiro (UFRJ), Rua Professor Rodolpho Paulo Rocco, 325-Cidade Universitária, Rio de Janeiro, RJ, CEP 21941-971, Brazil

    T. F. Souza, M. Leonel Martins, L. A. Jural, M. B. Magno, M. M. Pithon, A. Fonseca-Gonçalves & L. C. Maia

  2. Department of Dentistry, School of Health Sciences, Universidade de Brasília (UnB), Brasília, DF, Brazil

    I. P. Maciel & S. C. Leal

  3. Department of Health I, Universidade Estadual Do Sudoeste da Bahia (UESB), Jequié, Bahia, Brazil

    R. da Silva Coqueiro

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  1. T. F. Souza
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  2. M. Leonel Martins
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  3. L. A. Jural
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  10. L. C. Maia
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Contributions

TFS: development and application of the instrument, analysis, and interpretation of the data, drafting the article, revising critically the article, and approval of the version to be published. MLM: development and application of the instrument, analysis and interpretation of the data, revising critically the article, and approval of the version to be published. LAJ: development and application of the instrument, analysis and interpretation of the data, and approval of the version to be published. IPM: development and application of the instrument, revising critically the article, and approval of the version to be published. MBM: development and application of the instrument, revising critically the article, and approval of the version to be published. RSC: development of the instrument, analysis and interpretation of the data, revising critically the article, and approval of the version to be published. MMP: development and application of the instrument, revising critically the article, and approval of the version to be published. SCL: development and application of the instrument, revising critically the article, and approval of the version to be published. AFG: development and application of the instrument, revising critically the article, and approval of the version to be published. LCM: development and application of the instrument, revising critically the article, and approval of the version to be published.

Corresponding author

Correspondence to L. C. Maia.

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Conflict of interest

The authors declare no conflict of interest.

Ethics approval

This study followed the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement and was approved by the Research Ethics Committee of the Hospital of the Federal University of Rio de Janeiro (UFRJ) (protocol 4.717.517/CAAE:35790720.2.00005257). Participants agreed to participate through an online informed consent form.

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Souza, T.F., Leonel Martins, M., Jural, L.A. et al. Brazilian dentist’s knowledge of minimum intervention dentistry for caries management: application of a developed knowledge scale (MIDDeC-KS) and evaluation of its psychometric properties. Eur Arch Paediatr Dent 25, 27–38 (2024). https://doi.org/10.1007/s40368-023-00844-9

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