Yes sure....if you feel you have a bad breath and it is not caused by any disease conditions like sinusitis or any internal ulcer then you just get the right toothbrush, the right toothbrush here doesn't necessarily mean the brushes must be very hard atimes something flexible and thin may just be right depending on your dentition.when you have the right toothbrush you need to brush the right way, the right way is brushing every part of your mouth properly and by properly I mean it should be in an up and down process on the front of the teeth and behind after this you give full concentration to the tongue...many people don't know the tongue can contribute to the bad odour well I feel It contributes a great deal to the odour from your mouth so deal with your tongue with a brush properly. If you have any of the disease conditions that can cause mouth odour then get medical attention if you treat it then the odour will go away. When you can't brush and the odour persist then a good mouthwash helps too..I believe mouth odour can be greatly controlled and prevented if you follow the above and you keep conscious of your mouth breath.sometimes keeping the mouth busy help reduce odour since there is saliva secretion