Activities denture teeth together increased this problem since birth removable dentures, which along with the emergence of, until now, despite our rapid development of materials science and technology section of the innovation, but this phenomenon is not fully resolved; it many reasons are complex, the overall reason can be broadly divided into the following aspects:
1. The proportion of gypsum gouache is not controlled; lead to the contraction ratio of the plaster model is too large.
2. Tune gypsum is of no use of anti-expansion of the liquid, also contributed to dental equipment the contraction ratio of the plaster model is too large.
3. Row of teeth, the natural dentition, the occlusal surface of the wax, resulting in artificial dentition row.
4. Filling resin separation agent coating is too thick, the teeth together increased.
5 Filling resin pressure test did not do the Activities increased denture occlusal solution overflow canal because the resin to fill too much, as well as teeth together increased.
6. After resin filling, pressure box is not completely the excess resin squeezed out.
7. Injection aggregate or injection vacuum pressure polymerization.
8. Every step carefully, teeth together increased the problem is completely solved.
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