The teeth, has formed a substantial defect plumage is currently the most
widely used and effective good method, its basic process can be divided into two
steps: first to remove the decay and losing support weak tooth tissue, and
according to certain requirements will nest hole made reasonable form. Then the
packing material filling restores its inherent form and function. It is suitable
for filling and hidden parts of the anterior teeth after hole.
1. Socket whole preparation of basic principles
Net to decay organization of shanghai dental, to prevent the secondary
caries. Cavity effect is one of the similar debridement, you must remove the
decay, and makes a nest whole based on healthy teeth body tissue, prevent
secondary infection.
Protect pulp have feelings and metabolism of living tissue, due to dentin and
closely related to the pulp, the cutting tooth tissues, can produce different
degree of stimulus to dental pulp tissue, serious when can lead to dental pulp
congestion and inflammation, so the insurance should be paid attention to in
operation? Wave decided? Ace-naphthene figure Shan Dong carbon Preparation of
resistance form and retention form
Because bear chewing function after the restoration of teeth, filling after
repair shall meet the requirements of two respects, on the one hand can keep
prosthesis does not become loose, fall off for a long time, which should have
solid configuration; On the other hand prosthesis and residual tooth tissues are
not due to bear chewing force fracture, which should have resistance. The
preparation should be both at the nest hole.
Plumage repair process (silver amalgam): removal of caries bad organization,
establish a nest hole shape; Preparation of resistance form and retention form.
Hole shape modification and nest hole cleaning; Nest hole detoxification; Mat
base; Silver amalgam filling; Polishing.
2. The composite resin filling: Suitable for filling after front teeth and
chew strength under cavities, filling key points are:
(1) The preparation of certain hole shape
(2) Above moderate nest hole should be base
(3) Mixing equipment to clean and dry. Then the dental would use non-metallic
mixing knife. Notice that the ratio of components, fully mixing evenly. When
filling well protected against dampness, avoid producing bubbles, and
appropriate USES polyester film or cellophane will material compaction, and
finally modification finish.
3.The photosensitive composite resin plumage, acid corrosion method:
Indications with composite resin plumage, also applies to more tooth defect and
poor retention and covered the discoloration of teeth, etc. Filling points are:
Thoroughly clean the tooth surface.
4. With zinc phosphate cement, calcium hydroxide preparation such as covering
exposed dentin. With 35% or 50% of phosphoric acid, acid corrosion tooth surface
1 to 2 minutes. Thoroughly rinse tooth surface drying, fight pollution
again.
Coated adhesive, filling light composite resin after irradiation with visible
light 20-40 seconds, respectively, make its curing, last form grinding.
5. Inlay. Made from metal or other materials with the tooth socket hole for
restoration, embedded in the hole, known as the inlay; Cover the surface for the
inlay. Suitable for:
(1) After the tooth surface larger nest hole or teeth with fracture after
may.
(2) The neighborhood? Mansion retinues rush rinse hair pin which call Ru from
Huang advisory Lai Mu Qiao agent of Wa Qin fold
(3) As a fixed bridge foundation of teeth.
The point is:
(1) To net the decay organization and impending glaze column.
(2) The hole depth is not less than 2.5 mm, with 45° hole margin slope, width
and outward opening Angle is less than 5 °.
(3) Can add nail, ditch auxiliary retainer.
(4) With thin weak point is over all surface preparation.
(5) Making model type wax, embedding in time, as far as possible using the
casting.
