The effect of various bulk filling techniques on the mechanical and structural characteristics of class I biomimetic composite dental fillings
2025

Comparing Bulk Filling Techniques for Dental Restorations

Sample size: 10 publication 10 minutes Evidence: high

Author Information

Author(s): Kemény Alexandra, Farkas Péter Zoltán, Leveles Borbála, Borhy Levente, Károly Dóra, Bubonyi Tamás, Volom András, Braunitzer Gábor, Alleman David S., Varbai Balázs

Primary Institution: Budapest University of Technology and Economics

Hypothesis

The study aims to determine the most durable bulk filling technique for Class I cavities.

Conclusion

The semi-direct bulk filling technique significantly increases bond strength compared to direct methods.

Supporting Evidence

  • The semi-direct technique achieved an average tensile bond strength of 51.1 ± 12.2 MPa.
  • Direct bulk filling methods resulted in lower bond strengths averaging 32.4 ± 8.2 MPa.
  • Previous studies indicated that the tensile strength of the dentin-enamel junction is around 51.5 MPa.

Takeaway

This study looked at different ways to fill cavities in teeth and found that one method makes the filling stick better and last longer.

Methodology

The study involved preparing Class I cavities in extracted molars and comparing the tensile bond strength of different filling techniques using mechanical testing and imaging methods.

Potential Biases

Potential bias due to the manual preparation of teeth and subjective evaluation of results.

Limitations

The uniqueness of each tooth may affect the variability of results.

Participant Demographics

Participants were individuals aged 22–55 from whom third molars were extracted for orthodontic reasons.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1038/s41598-024-81081-y

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