title: Self-perceived halitosis and related factors among adults residing in Riyadh, Saudi Arabia. A cross sectional study.
abstract: OBJECTIVE
  This cross-sectional observational study was conducted to determine the prevalence of self-perceived halitosis among adults in Riyadh, Saudi Arabia and to assess the relation of halitosis with some socio-demographic factors, oral habits and health practices.
  
  
  METHODS
  A questionnaire was distributed to randomly selected subjects including senior high school students, college students and employees working in governmental offices. High schools and governmental offices were selected using systematic random sampling from each of the main five regions of Riyadh. The college students were selected from the major universities in Riyadh. One hundred questionnaires were randomly distributed in each of the 15 locations for males and 15 for females (5 schools, 5 universities and 5 governmental offices for each gender) giving a total of 3000 questionnaires.
  
  
  RESULTS
  The prevalence of self-perceived halitosis was 22.8% among the participants. The majority of the subjects with self-perceived halitosis experienced bad breath on waking up (83.5%). Nearly half of the sample with self-perceived halitosis was told by others that they had bad breath, 25.8% visited a doctor regarding that, 23.8% received treatment for their bad breath and 54.1% made trials to control their problem by using some aids. Self-perceived halitosis was found to be more prevalent among males compared to females (P < 0.000), whereas, no statistically significant differences were found among the different age groups (P = 0.317). A statistically significant relationship was found between self-perceived halitosis and times of mouth cleaning, use of tooth brush, use of tooth paste, tongue cleaning (P < 0.000), and the use of dental floss (P = 0.004). A statistically significant relationship was also found between self-perceived halitosis and shisha (P < 0.000) and cigarette smoking (P = 0.045).
  
  
  CONCLUSIONS
  The prevalence of self-perceived halitosis among the population in Riyadh is within the range reported in other countries. Self-perceived halitosis is related to gender, inadequate oral hygiene practices and cigarettes and shisha smoking however, it is not related to age.
authors.affiliation: Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, P.O. Box 6019, Riyadh 11545, Saudi Arabia.
authors.forename: Salwa Abdulrahman
authors.initials: SA
authors.lastname: AlSadhan
keywords: Adults; Prevalence; Riyadh; Self-perceived halitosis