1. Convex Teeth :
These teeth signify someone talkative and rather noisy. This could also be an aggressive person who will not take NO for an answer. When someone with this kind of teeth approaches you, it is likely you will immediately and subconsciously be alert and watchful. This kind of teeth favors women, as convex teeth on womens faces are only moderately convex, which signifies a good life and someone who possesses good mentor luck.
2. Mixed Convex & Concave Teeth :
Here the lower part of the teeth is convex, while the upper parts are concave. This is generally described as upside down teeth. Such teeth signify good eloquence someone who speaks well and very persuasively. However, this person lacks career luck and could come to a bad end. This person will generally be left alone and at the losing end in any competition or dual. They lack winners luck and will always have to make do with coming second best.
3. Sharp Teeth :
This kind of teeth tends to resemble the teeth of a mouse. They are sharp and efficient. Having this kind of teeth signifies someone very smart, especially in the technical fields of expertise. Someone like this tends to be mathematical and generally have a good start in life, but he/she may face obstacles and challenges later on.
4. Uneven Teeth :
People who have uneven teeth some small and some big, some sharp and some blunt tend to be greedy and grasping thinking only of him or herself. Such a person can also be something of a bully. His/her thought patterns and actions appear unsynchronized. This person can be very hot tempered, as a result of which he/she has troubles in most love relationships. Romantic luck tends to be lacking. Such a person should learn to control his/her emotions to create a better and happier life.
5.Concave Teeth :
This is just the opposite of convex teeth and is not generally favored. People with teeth like this should really get them fixed. Some say this indicates the person could inherit a genetic disease.
6. More Gum than Teeth :
When the gums are very obvious each time a person opens his/her mouth, this suggests someone lacking in relationship luck especially with respect to family. This person is likely to leave the family when young. This does not suggest the person is not nice, only that he/she tends to be closer to friends than to relatives. However, according to physiognomy, someone with uneven oral structure is not to be trusted. One should be careful before trusting such a person.
7. Gang Tooth or Snaggletooth :
This kind of teeth indicates someone who is proactive at work, always thinking up new ideas and demonstrating plenty of initiative. This person is also passionate and forthright. He/she has a good sense of public relations and will have plenty of social skills. Some however regard someone like this as stubborn, who tends to be argumentative and quarrelsome.
8. Very Tiny and Neat Teeth :
A person with small teeth tends to be a very stingy person. To this person, money is everything and they are easily motivated by the promise of a cash reward. Such people are also prone to jealousy and do not trust people easily. When there is a gap in the front teeth, it also indicates an inability to save money.
9. Unbalanced Appearance of Face & Teeth :
Here the face and teeth seem to be mismatched, particularly when the face seems too small and the teeth seem too big. This is not a good indication as larger than normal teeth signify many obstacles in life. This kind of imbalance is not favoured amongst Chinese Matriarchs looking for potential wives for their sons, as this signifies a woman who will cause problems for the husband.
10. Neat but Uneven Teeth Structure :
Here the teeth are either one big or one small; one front, or one back, either too long, or too short. It looks neat but the structure is badly formed. From young, this person should get dental braces to even out the imbalances. Teeth like these suggest someone who likes to tease or fool around, believing this makes people happy. Alas, most times, his/her efforts at tomfoolery just causes a great deal of annoyance. When the front teeth is upside down or uneven, it signifies a bad relationship with parents. Even when this person stays with the parents, the relationship is bad.