Title: Long-term changes in microbiology and clinical periodontal variables after completion of fixed orthodontic appliances
Authors: Ghijselings, Ellen
Coucke, W
Verdonck, Anna
Teughels, Wim
Quirynen, Marc
Pauwels, Martine
Carels, Carine
van Gastel, Jan # ×
Issue Date: Feb-2014
Series Title: Orthodontics & Craniofacial Research vol:17 issue:1 pages:49-59
Article number: 10.1111/ocr.12031
The aim of this prospective study was to monitor patients' microbiological and clinical periodontal parameters prior and up to 2 years after orthodontic treatment.

Twenty-four adolescents were treated with brackets. Fourteen of them received bands on upper first molars for extra-oral force application before bonding brackets to the remaining teeth. Microbiology, periodontal probing depth, bleeding on probing (BOP), and gingival crevicular fluid (GCF) flow were assessed at baseline (T1), bracket removal (T2), and 2 years post-treatment (T3). A statistical comparison was made over time and between bands and brackets.

A significant increase from T1 to T2 and a decrease from T2 to T3 in pathogenicity of plaque were noted. No significant difference was observed concerning supragingival colony-forming units (CFU) ratio (aerobe/anaerobe) between T3 and T1. However, the subgingival CFU ratio (aerobe/anaerobe) at T3 did significantly differ from the ratio at T1. Periodontal probing depth, BOP and GCF flow showed a significant increase between T1 and T2 and a reduction between T2 and T3, resulting in the absence of significant differences between T3 and T1, except for BOP at banded sites.

Placement of fixed appliances has an impact on periodontal parameters. The results showed that not all parameters were normalized at T3, indicating that the changes are only partially reversible.
ISSN: 1601-6335
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Periodontology
Clinical Residents Dentistry
× corresponding author
# (joint) last author

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