Oral hygiene habits among patients with oral and oropharyngeal Cancer

• Grant number: 11/22550-7
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: May 01, 2012
• End date: April 30, 2013
• Field of knowledge: Health Sciences - Dentistry - Social and Preventive Dentistry
• Principal Investigator: Maria Gabriela Haye Biazevic
• Grantee: Karin Landmayer
• Host Institution: Faculdade de Odontologia (FO). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

This study has an objective to describe oral hygiene habits among patients with oral and oropharyngeal cancer and to compare the information with the usual oral hygiene habits of patients without cancer. A hospital-based case-control study will be performed. The case group will be composed of new cases of patients with oral and oropharyngeal cancer undergoing treatment in two cancer reference units in São Paulo: Heliópolis Hospital and A. C. Camargo Hospital. The Control group will be composed of patients in the same hospitals, without cancer, paired as per sex, age, tobacco consumption, and food intake. An oral hygiene questionnaire (toothbrushing frequency, gingival bleeding, mouthwash use, dental visits, and a number of teeth) and a dietary frequency questionnaire with the most usual Brazilian diet will be answered by the participants. Oral hygiene profiles will be stratified according to quartiles of distribution among case group patients. Conditional logistic regression will perform the comparative analysis of the highest and the lowest levels of oral hygiene among cases and controls; associative measures such as Odds Ratios and their confidence intervals (95%) will be used. Multivariate models will be performed in order to identify the oral hygiene profile associated with an increase or a reduction of the chance (Odds) of having oral and oropharyngeal cancer.(AU)