Method of all-ceramic dental dental equipment

Editor: QQ Union
a dentist, preparation
avoid: No shoulder preparation and shoulder with bevel preparation, Cercon zirconia repair the basic principles of tooth preparation the body with the known consensus all-ceramic restorations. Therefore not suitable for Zirconia restorations without preparation or prepared to shoulder with the slope of the shoulder. Both methods are too thin to form the edge of the risk of fracture occur.
should be: slow circular shoulder slope, or shaft - a rounded neckline angle right angle shoulder level. Should be prepared into the following form: 1. Obvious slant (90 degrees) 2. Will be prepared to shoulder into a blunt shaft - the neckline edge angle with a circular cylindrical diamond bur is suitable for preparing slope, and a round the edge of the cone-shaped diamond bur preparation for the shoulder into a blunt uranium - the neckline angle.


II, the former dental prosthesis
basic essentials:
preparation before the dental prosthesis mentioned above are mainly based on the basic principles of preparation. Width of the margin of the preparation 1.0mm, while shaft wall to be blunt, just like the lip surface (minimum radius: 0.4mm)
margin width:
From the aesthetic point of view, the removal of the amount of margin should reach 2.0mm, vestibular - oral direction of the width of the smallest surgical margin should be 0.9mm, to ensure that the cutting device can accurately reproduce the basement the inside surface of the crown tissue. the outline of the formation of palatal
:
recommended palate shown side of the vehicle repair needle shape, the formation of maxillary canine teeth lingual and palatal contour.
porcelain margins:
Cercon Zirconia restorations can also be labial or dental production of porcelain shoulder and neck a week, and a corresponding shoulder porcelain veneer wood (Cercon ceram kiss). The production of porcelain shoulder cover casting techniques can also be used (Cercon ceramexpress). Then you can use the form replication staining technique or the If the production of ceramic shoulder design, right-angle bevel shoulder shoulder preparation is better than the preparation is.














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bite dental prosthesis after grinding than 1.5mm
Maxillofacial ; after the teeth for the repair hairy worms must be reserved for the smallest porcelain veneer 1.0mm thickness bite facial porcelain. Crown with a minimum thickness of 0.4mm, so bite maxillofacial should wear than 1.5mm. Angle relative to the axis, should be aggregated 6-8 °, shaft wall and the connections should bite maxillofacial blunt.
simplify the bite bite maxillofacial maxillofacial ups and downs of the ups and downs degree
level should be simplified. Open bite and Maxillofacial 120-140 ° angle to ensure precise cutting process to replicate the surface of the crown, and then to seal intact. Diamond diamond car with a long needle with the long axis of the vertical cutting and grinding teeth, very suitable for preparation bite maxillofacial.
determine the direction of insertion of
in determining the direction of insertion of All the corresponding abutment surface of the taper shaft should be at least 6 °, it is important, especially for a fixed bridge. During the scan, too steep vertical slope will be considered, not in the software accurately displayed.

dentists QQ Union