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Home Torque changes of anchorage units in preadolescent patients treated with a digitally...

Torque changes of anchorage units in preadolescent patients treated with a digitally designed tooth-borne expander anchored to deciduous vs. permanent molars

Authors:

  • S. Drago
    Department of Surgical Sciences and Integrated Diagnostics, University of Genova, Genova, Italy
  • A. Campobasso
    Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
  • G. Battista
    Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
  • A. De Mari
    Department of Surgical Sciences and Integrated Diagnostics, University of Genova, Genova, Italy
  • M. Menini
    Department of Surgical Sciences and Integrated Diagnostics, University of Genova, Genova, Italy
  • M. Migliorati
    Department of Surgical Sciences and Integrated Diagnostics, University of Genova, Genova, Italy

DOI:

https://doi.org/10.23804/ejpd.2023.1933

ABSTRACT


Aim

To compare the effects on permanent or deciduous anchorage dental units in patients treated with a digitally designed palatal expander.

Methods

Inclusion criteria were the following: presence of maxillary transverse deficiency, no previous orthodontic treatment, no extractions, absence of agenesis, congenital pathologies and cranio-maxillofacial malformations. Twenty patients (11 males, 9 females, 11 ± 1.8 years) received a digitally designed and metal printed palatal expander anchored on first permanent molars and 1 activation per day for 30 days (Group 1). Twenty-one patients (12 males, 9 females, 8.6 ± 1.4 years) received a digitally designed and metal printed palatal expander anchored on second deciduous molars and 2 activations per day for 14 days (Group 2). Digital intraoral scans were taken before expansion and after device removal, and torque and the palatal transverse diameter were digitally measured. The FDI notation was used to indicate each tooth

Results

Significant intragroup differences over time were found in Group 1 considering the torque of teeth 1.6, 1.4, 1.3, 2.1, 2.4, 2.5, 2.6. Significant differences between groups were found regarding the longitudinal change in torque of teeth 1.5, 2.4 and 2.5. Significant intragroup differences over time were found in both groups considering all transverse diameter parameters. No significant differences were found between groups in the transverse diameter modifications over time.

Conclusion

Less dental torque augmentation was produced in Group 2.

Study Design and Statistics

Retrospective controlled study on consecutively treated patients.
Intragroup differences over time were tested by the Paired t-Test or Wilcoxon’s signed rank test. To investigate the association of differences over time with groups, the Student’s t-Test and Mann-Whitney U test were performed.

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Publication date:

December /2023

Issue:

Vol.24 – n.4/2023

Page:

297 – 303

Publisher:

Ariesdue

Topic:

Any other topic

Cite:


Harvard: S. Drago, A. Campobasso, G. Battista, A. De Mari, M. Menini, M. Migliorati (2023) "Torque changes of anchorage units in preadolescent patients treated with a digitally designed tooth-borne expander anchored to deciduous vs. permanent molars", European Journal of Paediatric Dentistry, 24(4), pp297-303. doi: 10.23804/ejpd.2023.1933
Vancouver: S. Drago, A. Campobasso, G. Battista, A. De Mari, M. Menini, M. Migliorati. Torque changes of anchorage units in preadolescent patients treated with a digitally designed tooth-borne expander anchored to deciduous vs. permanent molars. European Journal of Paediatric Dentistry [Internet]. 2023Dec.20 [cited 2025May.13];24(4):297-303. Available from: https://www.ejpd.eu/abstract-pubmed/torque-changes-of-anchorage-units-in-preadolescent-patients-treated-with-a-digitally-designed-tooth-borne-expander-anchored-to-deciduous-vs-permanent-molars/
MLA: S. Drago, A. Campobasso, G. Battista, A. De Mari, M. Menini, M. Migliorati Torque changes of anchorage units in preadolescent patients treated with a digitally designed tooth-borne expander anchored to deciduous vs. permanent molars. European Journal of Paediatric Dentistry. 2023;24(4):297-303

Copyright (c) 2021 Ariesdue

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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    Cristina Calchera
    Editor in chief: dott. Luigi Paglia
    European Journal of Paediatric Dentistry © | ISSN (Online): 2035-648X
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    European Journal of Paediatric Dentistry © | ISSN (Online): 2035-648X
    Registrazione del Tribunale di Milano n. 285 del 14.04.1998 | ROC 1946 - 26.09.2001
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