Bacterial composition of subgingival plaque in crowded and noncrowded teeth

Patients with dental crowding, even with good oral hygiene, may show increased bacterial presence in the crowded area. This study aimed to determine the microbial composition of subgingival plaque in crowded and noncrowded dental regions. Forty dental students with anterior dental crowding, who were...

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Published in:American journal of orthodontics and dentofacial orthopedics 2022-03, Vol.161 (3), p.375-380
Main Authors: Rafiei, Elaheh, Zandi, Hengameh, Joshan, Neda, Maybodi, Fahimeh Rashidi, Fallah, Raheleh
Format: Article
Language:English
Subjects:
Aggregatibacter actinomycetemcomitans
Dental Plaque - microbiology
Humans
Malocclusion
Porphyromonas gingivalis
Toothbrushing
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container_title American journal of orthodontics and dentofacial orthopedics
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creator Rafiei, Elaheh
Zandi, Hengameh
Joshan, Neda
Maybodi, Fahimeh Rashidi
Fallah, Raheleh
description Patients with dental crowding, even with good oral hygiene, may show increased bacterial presence in the crowded area. This study aimed to determine the microbial composition of subgingival plaque in crowded and noncrowded dental regions. Forty dental students with anterior dental crowding, who were aware of correct brushing techniques and oral hygiene, were enrolled in this study. After orthodontic records were taken and the periodontal examination was performed, subgingival plaque samples were collected from the crowded (experimental) and noncrowded regions (control) of each patient. Colony counting was performed for Aggregatibacter actinomycetemcomitans (Aa), Porphyromonas gingivalis (Pg), and streptococcus species. The mean amount of Aa and Pg colonies was significantly higher in crowded areas (P 
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Crowded dental areas, even with good oral hygiene, are more suitable environments for Aa and Pg colonization. •Some bacterial counts are higher in subgingival plaque of crowded areas.•Crowding did not affect the relative frequency or mean colony count of streptococcus.•Good oral hygiene did not prevent bacterial colonization in crowded areas.</description><identifier>ISSN: 0889-5406</identifier><identifier>EISSN: 1097-6752</identifier><identifier>DOI: 10.1016/j.ajodo.2020.09.029</identifier><identifier>PMID: 34688519</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Aggregatibacter actinomycetemcomitans ; Dental Plaque - microbiology ; Humans ; Malocclusion ; Porphyromonas gingivalis ; Toothbrushing</subject><ispartof>American journal of orthodontics and dentofacial orthopedics, 2022-03, Vol.161 (3), p.375-380</ispartof><rights>2021 American Association of Orthodontists</rights><rights>Copyright © 2021 American Association of Orthodontists. 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subjects Aggregatibacter actinomycetemcomitans
Dental Plaque - microbiology
Humans
Malocclusion
Porphyromonas gingivalis
Toothbrushing
title Bacterial composition of subgingival plaque in crowded and noncrowded teeth
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