repair composite resin bonding

Sticky crown (especially porcelain crowns), fixed denture adhesive, inlays,
Veneer, indirect method to complete resin restorations.
Usually a paste - paste formulations for bonding metal and opaque porcelain restorations.
Dual-cure: start, and then continue with chemically cured,
Suitable transparent adhesive restorations such as crowns, indirect method finished resin restorations.
Light-curing: Single component. portable dental unit Curing may be used alone, or light-cured matrix
Dual curing catalyst added. These products use the object consistent with the dual-cure.
In order to obtain the best physical properties, operation is the key.
Light-curing and dual-curing materials, light is a must,
After 10 minutes the polymerization generally get the best performance.
Some brands of adhesive material handling combined with dentin bonding agent,
Increases the complexity of clinical use.
These materials are widely used for bonding repair techniques, especially bonding ceramic restorations
Failure occurs and the material itself and operate in addition to technical defects, the
 Cyclic stress fatigue is a factor,
It is reported that the average life expectancy chemical curing repair of 8 years
Material itself is not much problem, endo motor the individual patient doctors and nurses have allergy symptoms,
Especially when using dentin bonding systems should avoid contact with the skin. n place is not complete, polymerization shrinkage and consequent leakage will be on micro-
Pulp causing pathological damage. The formation of micro-leakage can cause allergies and tooth repair failed.
Binding adhesive used to reduce the incidence of micro-leakage
[Disadvantages]
Advantages - High strength, low solubility, and enamel, dentin,
Alloy and porcelain restorations high surface adhesion properties (mechanical or chemical bonding).
Disadvantages - operating techniques sensitivity; seated difficulties; film thickness higher.
Pulp stimulation; micro-leakage; remove excess adhesive material more difficult.
In the adhesive porcelain veneers, composite resin inlays, crowns and other restorations good light transmission properties when
Using different colors, transparent, translucent or opaque,
Color coordinated with the prosthesis resin adhesive material is required to achieve beautiful.
All-ceramic restorations need to pass it with the adhesive material adhesive tooth tissues
Together to obtain strength, the hydrofluoric acid treatment to obtain ceramic adhesive side mechanical retention,
Then silane for further chemical processing.
The composite resin restorations complete curing of the adhesive the basic requirements.
Using light-cured resin adhesive material, the thickness should not exceed porcelain 1.5mm,
So as to ensure sufficient light to enter. If you use masking agents or porcelain veneers too thick,
Manufacturers recommend using a dual dual-cure resin paste adhesive material.
Resin adhesive material widely used for special aesthetic restoration of the adhesive,
The adhesive bridge dental cement is preferred. In addition to the lack of retention,
 Shedding fixed prosthesis adhesive, resin adhesive material can also be used to achieve the purpose.
Resin bonding material application more troublesome, these materials can not be completely avoided
Pulp irritation. Have dental products better retention is not a conventional prosthesis
Requires the use of resin-bonded materials.
Resin bonding material must be used with the adhesive,
 Avoid shrinkage of the resin and tooth structure caused fissures produced.

dental instruments and medical personnel microbial

 dental instruments and medical personnel microbial contamination status of iatrogenic infection

    1.1 Microbial contamination of dental instruments dental instruments in addition to being the patient's blood, saliva and other oral secretions pollution, the environment may be dental, medical staff hand contamination. HBV, HCV, HIV and other viruses dental needle is not only present in the blood, which can be discharged from the saliva contaminated dental instruments. Our hospital dental equipment HBsAg contamination rate fluctuations on 5% to 30%, urban individual dental clinic equipment on HBsAg positive rate of 37%, rural clinics dental equipment on HBsAg positive rate of 62%. Dental handpiece contamination of up to 5 × 10 4 ~ 5 × 10 6 cfu/cm2. The findings microbial contamination of dental instruments three major categories namely oral colonization flora, gastrointestinal pathogens such as Salmonella bacteria group, Escherichia coli group, Shigella dysentery bacteria, Pseudomonas group and fungi, times but also have paid close attention to blood-borne disease pathogens.

    1.2 medical personnel dental supply companies iatrogenic infection status dental instruments serious pollution not only endanger the patient, it also endangers the medical staff. Dental Clinic medical staff is one of many facing the unknown HBV, HCV, HIV infection or pathogen carriers come to treatment, their blood, saliva may contain pathogenic factor, so that patients and medical staff have the chance of infection. According to the medical staff of cold Taijun population survey found that hospital medical staff serum HBsAg positive rate of the general population is 3 to 6 times, and dental medical staff serum HBsAg positive rate is four times the other department staff. Foreign existing clinical data show that dentists HBV, dental chair HCV, HIV infection problems are present occupation. According to Japanese scholars Mochizuki widely reported that the Japanese dental practitioner HBV infection rate was 35.9%. Practicing dentist in the United States are also infected with HIV was reported.

with regard to all-ceramic dental injection matter how much you know

Now people who do all-ceramic dental increasingly accomplished, because all-ceramic dental porcelain teeth with metal unmatched superior repair effect. So many friends there were dental machine unsightly teeth

Friends want to try all-ceramic dental brought new U.S. dental effects. But often we do exactly the porcelain teeth to ignore the relevant considerations affect the results. What about

All-ceramic dental precautions are what it?


        According to oral experts say, all-ceramic dental considerations mainly in the following three aspects:


        First, eat soft food: the beginning should eat soft foods wear, it is best not to use the all-ceramic dental Kenyinggutou, eating crabs and other food. This is due to raw material reasons,

Most of the original eco-ceramic dental force to a limited extent, once exceeding this intensity, it is easy to damage the teeth, and even affect its life.


        Followed by wash their fiber optic handpiece teeth cleaning: all-ceramic dental abutment junction with easy to gather plaque and tartar formation, attention should be clean, available floss between the teeth, and regularly

To the hospital for examination, cleaning teeth.


        Finally, anti-periodontal: anterior aspect always be careful not to bump them to go with a hard object, or a long day of porcelain breakage may occur. Porcelain teeth generally do not change color

To ensure the health gaps between teeth, with particular attention to the control of periodontitis, or dentures can not afford to really end up on the bad teeth fall out.