Denture processing common rework Analysis

Denture rework a doctor and denture processing enterprises do not want to see most things, it has a bearing on the credibility of doctors, is also related to the credibility of enterprises and cost accounting. How to control denture rework, improve the credibility of dental restoration, repair each of oral doctors and denture processing plants can not be ignored, the need to address the problem.

Denture business if we can properly solve the problem of rework, the market will be able to gain the initiative for the rapid development of enterprises to create good conditions.

Denture rework rework the external and internal rework.

Common external rework are:

1, occlusal increase or decrease Analysis: doctor of dental patients after not wearing temporary crown, resulting in increased natural abutment; grinding mechanics for a bite at the wear on teeth; bite inaccurate, such as the lack of free, for use wax - Jaw, a wax easy deformation; impact of the bite of small craft did not plaster removed.

2, porcelain bridge can not be in place Analysis: Stripping die when a doctor from premature, causing model deformation; complex mode, with two plaster-irrigation, because of inconsistent expansion coefficient, irrigation mode, not back an impression of a vacant Fulcrum, the model deformation; doctors at the abutment of relatively rough, not polishing the surface of teeth a small stronghold; after the teeth of patients did not wear temporary crown, causing abutment physiological displacement; generation of cutting deformation of the reduction is not accurate ; Undercut the handling of incorrect; denture grinding is not in place, the long edge, adjacent to point too heavy, doctors do not take clear-edge, the edge mechanics lapse of judgement, not long edge of the denture in place.

3, the color does not correct analysis: medical errors than the color, resulting in color with adjacent teeth denture have color; abutment by the lack of teeth, through the bottom color; mechanics errors, wrong orders, with the wrong porcelain powder; porcelain colors and The difference between doctors shade guide.

4, tooth shape Buhao Kan Analysis: patients with special needs; technicians and doctors of different aesthetic standards; mechanics technology too bad, dentures and incompatible with the adjacent teeth.

5, no margin of neck-analysis: doctors do not take clear-edge, the edge-type craft lapse of judgement; craftsmen polished inaccurate, short edge of the mill.

6, Lu and neck margin line analysis: craft operators not standardized, opaque coating layer, the bottom edge of the crown Toner did not cover up with a drop of water; polished when the phone speed too fast, causing the edge porcelain dentures Benglie.

7, collapsing porcelain Analysis: I have a patient interference, doctors did not pay attention to blending; occlusal space too small, too thin porcelain layer; denture design unreasonable, ceramic layers thick, gold - in a porcelain bite point on the line; doctors Design Unreasonable, bridges too long, when patients chew too much stress.

8, other reasons: doctors for various reasons want to shift the economic risks and losses, often have unreasonable return or rework. Common internal rework are:

1, and doctors do not match the requirements of: production of single-wrong; lack of expertise in mechanics, doctors can not understand the production requirements; doctors require unambiguous.

2, Alice bridge dynamic analysis: with the wax-type production, and the casting of the embedding. Embedded in the Longbridge not done before the bridge to eliminate the stress of dealing with wax; casting design unreasonable embedded deformation caused by man-made; investment materials did not grasp the expansion coefficient good casting did not have a good time; generation of rocking .

3, tooth shape Buhao Kan Analysis: mechanics no scientific basis for training carved teeth; aesthetic sense of difference, no teeth-shaped space experience.

4, Lu and neck margin line analysis: craft operators not standardized, opaque coating layer, the bottom edge of the crown Toner did not cover up with a drop of water; polished when the phone speed too fast, causing the edge porcelain dentures Benglie.

5, casting a shrinkage in the crown, Shayan analysis: the crown not thick-set Fund; embedded at the close mixed debris; Crucible dirty; casting, casting Crossing dirty.

6, casting incomplete analysis: wax-too thin; casting time too early; thin did not take place exhaust Road; casting design errors.