Brushing your teeth is a quintessential part of any daily routine but a surprising debate has sparked up on whether people should brush their gnashers with cold or warm water. Regardless of which side of the divide you sit on, it’s quite a shock to hear that not everyone brushes their teeth in the same way you’ve been all your life. Despite this seeming like a fairly benign topic, it’s one that has divided social media and has prompted dentists to weigh in and even a scientific study has been carried out to settle the matter once and for all. Cold vs warm water when brushing your teethThe deba…