Every tooth has to be considered a focus, if it is necrosed, contains a deep, carious hole, or if it was root-treated inexpertly, harmed or untreated. Broken down teeth, roots remained in the tooth-bed or in the facial cavity, granulars and cysts around the roots, that cast an X-ray shadow, can also be focuses.

It is widely known that wisdom teeth cause so much trouble, especially when they can not or just partially can break through because of lacking space. Besides they may cause piling up in the row of teeth, jawbone joints complaints, and acute pains, some of them may become a tooth-focus because of the pockets around the crown, which could not break through, and its connective tissue that contains bacteria. The focus is an encapsulated, chronic, symptom deficient inflammation, from which the bacteria and their so-called toxins can get into other organs and deeper tissues, where they can cause other diseases.

Such focuses are:

• dental caries
• tooth-bed pocket
• alteration around the root-tips
• tooth remained in tooth-bed

Possible second diseases:

• inflammation of joints
• inflammation of visual organs
• various skin-diseases
• hearth-membrane inflammation
• kidney inflammation