1.Transient bad breath is very common and is caused due to oral dryness, stress, hunger, eating foods containing garlic and onions, smoking and poor oral hygiene.

2.Morning Breath is also pretty common and can be caused by similar things to transient bad breath howvever the major cause of bad breath in the morning is simply the saliva glands become sluggish and this can mean the flow of saliva does not help clean the teeth and mouth.

One of the easiest ways to get rid of morning breath is to eat or chew gum as this stimulates the silivary glands the mouths natural cleaning fluid.

3.Chronic Bad Breath effects about 1:4 people and is most commonly due to excess oral (mouth) bacteria such as the bacteria streptococus mutans this problem can be usually treated very effectively with medication from either your doctor or more probably your dentist.

There are several different things that affect the mouth and cause bad breath. Dental decay, gum disease, food stagnation between the teeth, dry mouth, excessive bacterial activity on the tongue, throat or tonsil infection and catarrh or pre nasal drip (sinus drip) are some of them.

Some things that can influence the the airways and cause bad breath are sinusitis, polyps, dryness, foreign body, mucus flow, bronchitis, pneumonia and bronchiectasis.

Also food stagnation, gastric and blood influx are known to be other less common causes of bad breath.

Bad breath can also be a sign of a significant general health problem such as liver or digestive problems if after trying a few home remedies for bad breath you find the problem persists you might want to speak to your doctor or dentist as further investigation as to your specific causes of bad breath may be needed.

You'll be stunned to hear that there are more than 400 types of bacteria are found in the average mouth more than on most toilet seats.

Huge quantities of these naturally-occurring bacteria are often found on the back of the tongue, where they are undisturbed by normal activity.

The surface of the tongue dorsum being rough provides an great habitat for anaerobic bacteria, which flourish under a continually-forming tongue coating of food debris, dead cells, and thousands of bacteria, both living and dead.

The anaerobic respiration of such bacteria can yield either the putrescent smell of polyamines, or the "rotten egg" smell of volatile sulfur compounds such as hyrdogen sulphide. When these compounds mix with mouth air, they produce very unpleasant breath that can be socially quite offensive.

You can prevent most bad breath by maintaining excellent oral and dental hygiene.This requires cleaning of tongue right to the back, using a mouthwash recommended by the dentist, drinking plenty of fluids and avoiding too much of coffee.

Sugar-free gum and fresh and fibrous vegetables woprk very effectively to get rid of bad breath as they stimulate the production of saliva which helps clean the mouth and tongue.

Smoking especially can lead to bad breath as the mouth bacteria are increased and the production of saliva reduced.

You should brush your teeth twice a day with fluoride or a natural toothpaste to remove food debris.

Most mouthwashes and mints give temporary release since they mask the smell for a few minutes and do not address the root cause of the probelm. Mouth washes containing chloehexidine, zinc gluconate or chlorine dioxide should be used but you should be aware that continually use of some of these products can lead to tooth sensitivity and staining.

Alcohol, which encourages dehydration is also best avoided.

Maintaining a good hydration in the body by drinking several glasses of water a day is another preventative measure to prevent your mouth from being dry and encouraging the growth of mouth bacteria.

Adding lemon juice to the water before drinking is considered beneficial as are a couple of drop of clove oil or orgegano oil and using it as a mouth wash.

Eating some types of probiotic yogurt, drinking green tea or chewing cinnamon or sugarless cinnamon gum can reduce bad breath also.