While I admittedly have not been obsessive-compulsive about oral hygiene compared to other areas, like bodily hygiene, I have tried to take more care of my mouth as I've gotten older seeing as how I'm genetically prone to cavities and over the years have likely helped send the children of several dentists through college.
With that said, I always brush at least twice a day, once when I first wake-up and once before bed. On days I work, I will also brush a second time after eating breakfast and before leaving for work. Though rarely, sometimes I will also brush a third time during days off should we be going out somewhere and I've eaten some food or substance that might be particularly offensive like something with onions or garlicky. Regardless, I always follow-up a brushing with mouthwash or if before bed, a fluoride rinse.
Any morning or mid-afternoon brushing is admittedly a quick affair, while with a before bed one, I brush much more thoroughly for at least a full minute or two.
All this is by way of a manual toothbrush as I never cared for either electric ones or a water irrigator and it is usually the cheapest no frills soft brush that I change every few months. Despite every dentist's advice and lecturing, I never floss unless something is stuck between my teeth. It just always seemed like it was too anal-retentive, too much work and usually resulted in a mouth full of bleeding gums.
I would be curious to eventually hear why you ask, although if it has anything to do with oral sex & hyenine, that's an issue I of course have no concern about other than the occasion flavor saver smell of pussy on my upper lip
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