Randomized clinical controlled trial on the effectiveness of conventional and orthodontic manual toothbrushes

• Main Authors: Lisiane Krieger Gomes, Carlos Frederico Sarmento, Flávio Roberto Guerra Seabra, Patrícia Bittencourt Dutra dos Santos, Fábio Henrique de Sa Leitão Pinheiro
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Pesquisa Odontológica 2012-08-01
• Series: Brazilian Oral Research
• Subjects: Orthodontics; Biofilms; Oral Hygiene
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242012000400013

The objective of this study was to compare the effectiveness of two manual toothbrushes (conventional and orthodontic). The following clinical parameters were used: VPI (visible plaque index) and GBI (gingival bleeding index). Patients, 64 total (30 males and 34 females), in the permanent dentition, with a mean age of 17.8 years, were randomly selected from a practice specializing in orthodontics. Each participant received audio-visual instructions on oral hygiene as well as a kit of materials containing two manual toothbrushes (orthodontic and conventional). Each toothbrush was randomly allocated to one side of the mouth (split-mouth design) and used for a period of approximately 4 weeks. The VPI and GBI were measured by a single calibrated examiner before (T0) and after (T1) the implementation of interventions. The Mann-Whitney test was used to compare the VPI values between the groups, and the Student t-test for independent samples was used to compare GBI values. The level of significance was set at 5%. No statistically significant difference was observed between the groups at T0 for both VPI and GBI, and at T1 for the GBI. The manual orthodontic toothbrush produced a statistically lower VPI (P < 0.05) at T1, but this did not seem to be of clinical importance.