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Home Salivary Streptococcus Mutans and Lactobacillus spp. levels in patients during rapid palatal...

Salivary Streptococcus Mutans and Lactobacillus spp. levels in patients during rapid palatal expansion

Authors:

  • E. Ortu
    Department of Life, Health and Environmental Sciences, Dental Clinic, University of L'Aquila, L'Aquila, Italy
  • F. Sgolastra
    Department of Life, Health and Environmental Sciences, Dental Clinic, University of L'Aquila, L'Aquila, Italy
  • A. Barone
    Department of Life, Health and Environmental Sciences, Dental Clinic, University of L'Aquila, L'Aquila, Italy
  • R. Gatto
    Department of Life, Health and Environmental Sciences, Dental Clinic, University of L'Aquila, L'Aquila, Italy
  • G. Marzo
    Department of Life, Health and Environmental Sciences, Dental Clinic, University of L'Aquila, L'Aquila, Italy
  • A. Monaco
    Department of Life, Health and Environmental Sciences, Dental Clinic, University of L'Aquila, L'Aquila, Italy

ABSTRACT


Aim

To assess the microbial level of Streptococcus Mutans and Lactobacillus spp. during rapid palatal expansion, and
compare the data with untreated control patients.

Methods

Study design: Thirty patients aged between 6-9 years
were enrolled in this study (15 males and 15 females). The patients were divided into three groups: 10 patients were treated with rapid
palatal expander (RPE) (Test Group 1), 10 patients were treated with Mc Namara expander, and 10 patients were enrolled in the control
untreated group. Whole stimulated saliva was collected from each patient at three time points: before initiation of expansion therapy
(baseline at T0), after 3 months (T1), after initiation of treatment, and after 6 months from T0 (T2). The protocol of rapid palatal
expansion for the two groups was as follows: at placement of the expander 4 activations were performed by the orthodontist (1 mm
expansion), followed by 4 activations per day by the parents (two in the morning and two in the evening, 1 mm per day total) to be
repeated for 7 days.

Results

Statistics: In this study a different trend in the microbial colonisation for the two treated groups was
observed. In the Test Group 1, in which patients were treated with the RPE, there was a significant difference between Strp T0 T1 and
between Strp T0 and T2 (p< 0.05). There was also a significant difference between LAC T1 T0 and LAC T2 and T0 (p<0.05). In the Test Group 2, treated with McNamara expanders, it was found was a significant difference between LAC T2 T0 and LAC T1 T0. In the same group it was also found a significant difference between Strp T2 T0; T1 T0; T1 T2 (p<0.05).

Conclusion

The level of the
various species of bacteria changes during rapid palatal expansion, and this seems to depend on the type of orthodontic expander.
During rapid palatal expansion treatment it is also advisable a periodical microbial monitoring using in-office bacteria tests.

PLUMX METRICS

Publication date:

Sep /2014

Keywords:

lactobacillus spp, rapid palatal expansion, salivary microbial levels, streptococcus mutans

Issue:

Vol.15 – n.3/2014

Page:

271 – 274

Publisher:

Ariesdue

Cite:


Harvard: E. Ortu, F. Sgolastra, A. Barone, R. Gatto, G. Marzo, A. Monaco (2014) "Salivary Streptococcus Mutans and Lactobacillus spp. levels in patients during rapid palatal expansion", European Journal of Paediatric Dentistry, 15(3), pp271-274. doi:
Vancouver: E. Ortu, F. Sgolastra, A. Barone, R. Gatto, G. Marzo, A. Monaco. Salivary Streptococcus Mutans and Lactobacillus spp. levels in patients during rapid palatal expansion. European Journal of Paediatric Dentistry [Internet]. 2014Sep.1 [cited 2025May.24];15(3):271-274. Available from: https://www.ejpd.eu/abstract-pubmed/salivary-streptococcus-mutans-and-lactobacillus-spp-levels-in-patients-during-rapid-palatal-expansion/
MLA: E. Ortu, F. Sgolastra, A. Barone, R. Gatto, G. Marzo, A. Monaco Salivary Streptococcus Mutans and Lactobacillus spp. levels in patients during rapid palatal expansion. European Journal of Paediatric Dentistry. 2014;15(3):271-274

Copyright (c) 2021 Ariesdue

Creative Commons License

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

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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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