Not the edge of porcelain teeth and a bite of the reasons for the high

In the repair of porcelain teeth, not because of a marginal, high-bite, leading to repair and rework the failure of a great proportion of a lot of time, not the edge of a bite and the high was at the same time.

If not simply on the verge of a secret, following the wrong reasons:

Doctors is:

First, take-no clear, no gingival retraction, useless to die from silicone rubber, it is difficult to porcelain teeth of a precise edge.

Second, the plaster model of the water than no statement on the instructions of the deployment, leading to expansion coefficient is not suitable, and the actual edge of the neck margin in the gap.

Third, instead of super-anhydrite irrigation model, the general model of anhydrite copy will be some errors.

4, irrigation system model, the margin of a neck bubble.

5, the irrigation system in the former model, did not die in the saliva and blood clean.

Mechanics aspects are:

First, when finishing a neck margin of error.

Second, the cutting of a neck injury at the margin.

Third, the production of wax when a neck injury margin.

4, craftsmen sense of responsibility.

Bite the reasons for the high and handling:

1, jaw-jaw and check model.

(1), staggered cusp of a clear, the former upper-work model and the need to remove the jaw model on the bubble, so that the mandibular closely chimera.

(2), the cusp of staggered not clear when the addition to the free end of the bite of an exception, in principle, the use of wax-upper jaw record. At this point, should be recorded in wax on the lower jaw model depicted on-line, remove wax jaw records, the upper-right-line. For maxillofacial wear significantly, it is difficult to determine the location of the mandible of cases, should be zoned for dental-line.

If a simple bite, have the following causes:

Doctors:

First, doctors used the embankment wax, wax itself there will be errors, but also in the process, the deformation of the probability is very great.

Second, the doctor did not give patients wear temporary crown, long time, resulting in abutment elongation.

Third, some doctors from the local model, the bite will be error, the best model for all.

Fourth, the jaw model instead of anhydrite irrigation system, the general gypsum easy to wear, but not accurate.

Mechanics:

1. Occlusion made an error of judgement, jaw relations transfer is not correct.

Second, when the jaw grinding models wear.

Third, lateral jaw judgement is not correct, the best-jaw with precision.

4, craftsmen sense of responsibility.