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Gingival response in orthodontic patients: Comparative study between self-ligating and conventional brackets.
Alejandra A Folco1, Sandra C Benítez-Rogé1, Marina Iglesias1
1Department of Orthodontics, School of Dentistry, University of Buenos Aires, Argentina.
Acta Odontologica Latinoamericana : AOL
|January 7, 2015
Summary
Orthodontic brackets, both self-ligating and conventional, lead to increased plaque and gingival inflammation. However, regular oral hygiene can maintain periodontal health, with no significant difference in gingival response between bracket types.
Area of Science:
- Dentistry
- Orthodontics
- Periodontology
Background:
- Orthodontic brackets impede oral hygiene, promoting bacterial plaque accumulation.
- Self-ligating brackets offer potential hygiene advantages over conventional types due to fewer components.
Purpose of the Study:
- To compare the gingival response in orthodontic patients using self-ligating versus conventional brackets.
- To evaluate the impact of different bracket systems on plaque, gingival indices, and sub-gingival microbiota.
Main Methods:
- A comparative study involving 22 patients (aged 16-30) divided into self-ligating (Damon) and conventional (Roth) bracket groups.
- Assessment of Plaque Index (PI), Gingival Index (GI), and Probing Depth (PD) at specified intervals.
- Microbiological analysis of sub-gingival plaque samples.
Main Results:
- No statistically significant difference in PI, GI, or PD between self-ligating and conventional brackets.
- A transient increase in plaque and gingival indices was observed at 14 days, more pronounced in the self-ligating group.
- Microbiota composition shifted towards gingivitis-associated species by day 14 in both groups, but remained compatible with health overall with basic therapy.
Conclusions:
- Both self-ligating and conventional orthodontic brackets result in similar gingival responses.
- Orthodontic treatment generally increases plaque and gingival inflammation, manageable with consistent oral hygiene.
- Maintaining gingival-periodontal health is achievable during orthodontic treatment through adequate basic therapy.

