Clinical and microbiological findings at sites treated with orthodontic fixed appliances in adolescents

Kim, Klara; Heimisdottir, Kristin; Gebauer, Urs; Persson, G Rutger (2010). Clinical and microbiological findings at sites treated with orthodontic fixed appliances in adolescents. American journal of orthodontics and dentofacial orthopedics, 137(2), pp. 223-8. St. Louis, Mo.: Mosby 10.1016/j.ajodo.2008.03.027

Full text not available from this repository.

INTRODUCTION: Fixed orthodontic appliances can alter the subgingival microbiota. Our aim was to compare the subgingival microbiota and clinical parameters in adolescent subjects at sites of teeth treated with orthodontic bands with margins at (OBM) or below the gingival margin (OBSM), or with brackets (OBR). METHODS: Microbial samples were collected from 33 subjects (ages, 12-18 years) in treatment more than 6 months. The microbiota was assessed by the DNA-DNA checkerboard hybridization method. RESULTS: Bacterial samples were taken from 83 OBR,103 OBSM, and 54 OBM sites. Probing pocket depths differed by orthodontic type (P <0.001) with mean values of 2.9 mm (SD, 0.6) at OBSM sites, 2.5 mm (SD, 0.6) at OBM sites, and 2.3 mm (SD, 0.5) at OBR sites. Only Actinomyces israelii (P <0.001) and Actinomyces naeslundii (P <0.001) had higher levels at OBR sites, whereas Neisseria mucosa had higher levels at sites treated with OBSM or OBM (P <0.001). Aggregatibacter actinomycetemcomitans was found in 25% of sites independent of the appliance. CONCLUSIONS: Different types of orthodontic appliances cause minor differences in the subgingival microbiota (A israelii and A naeslundii) and higher levels at sites treated with orthodontic brackets. More sites with bleeding on probing and deeper pockets were found around orthodontic bands.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > School of Dental Medicine > Department of Orthodontics 04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology
UniBE Contributor:	Kim, Klara, Gebauer, Urs, Persson, Gösta Rutger
ISSN:	0889-5406
Publisher:	Mosby
Language:	English
Submitter:	Eveline Carmen Schuler
Date Deposited:	04 Oct 2013 14:08
Last Modified:	05 Dec 2022 14:00
Publisher DOI:	10.1016/j.ajodo.2008.03.027
PubMed ID:	20152679
Web of Science ID:	000274393500019
URI:	https://boris.unibe.ch/id/eprint/459 (FactScience: 199350)