Effect of bracket type on halitosis, periodontal status, and microbial colonization

Ruhi Nalçacia, Yener Özatb, Serpil Çokakoǧ Luc, Hakan Tü Rkkahraman, Süleyman Önale, Selçuk Kaya

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Objective: To determine the effect of bracket type on halitosis, periodontal status, and microbialcolonization.Materials and Methods: Forty-six patients scheduled for fixed orthodontic treatment (age 11- 16 years) were selected from the orthodontic department of Suleyman Demirel University. Patients were divided into two groups with random distribution of brackets; 23 patients were treated with self-ligating brackets (group SLBs), the others with conventional brackets (group CBs). Halitosis measurements and periodontal and microbial records were obtained before the placement ofbrackets (T0), 1 week later (T1), and 5 weeks after bonding (T2). Periodontal parameters, including plaque index (PI), gingival index (GI), and bleeding on probing index (BOP), were obtained from all the bonded teeth. Halitosis measurements were performed at the same time. Microbial samples were obtained from the buccal surfaces of all the bonded teeth. Data were analyzed by using a repeated-measurement analysis of variance test for the comparison of parameters between groups and times. Results: Periodontal parameters and halitosis results were higher in the CBs group than in the SLBs group (P ≤.05). In the SLBs group, halitosis and BOP values revealed no pronounced changes between T1 and T2 (P ≥.05). Intra- and intergroup comparisons showed that there were no statistically significant differences for microbial colonization between all the time intervals (P ≥.05). Conclusion: Bracket type has an effect on halitosis and periodontal status. Therefore, self-ligating brackets may be advised in order to prevent patients from developing halitosis and to increase the likelihood of good oral hygiene during orthodontic treatment.

Original languageEnglish (US)
Pages (from-to)479-485
Number of pages7
JournalAngle Orthodontist
Issue number3
StatePublished - May 2014


  • Halitosis
  • Microbial colonization
  • Periodontal status
  • Self-ligating bracket

ASJC Scopus subject areas

  • Orthodontics

Fingerprint Dive into the research topics of 'Effect of bracket type on halitosis, periodontal status, and microbial colonization'. Together they form a unique fingerprint.

Cite this