Income and oral health relationship in Brazil: is there a threshold?
The relation of oral health in teenagers with equivalized household income (material circumstances) showed a threshold, but the relation with a ranking variable (social position) was linear. Maybe differences in oral health between individuals are influenced by both their material circumstances (up to a certain level of income) and their social position in relation to others, i.e. social status (at any income level).
Respiratory retraining using the slow breathing technique appears to be a useful adjunctive for cardiorespiratory control in hypertensive patients.