the control points

⑴ control orifice positioning error
In the above settings Secant Pile Top Construction guide wall (This project uses reinforced concrete guide wall, can also be recycled steel guide wall), the guide wall set positioning hole, the diameter should be bigger than the pile diameter 20 ~ 40mm. Rig in place, check the first one cannula inserted into the positioning hole and require the construction unit is adjusted so that the positioning around the casing to maintain a uniform gap between the holes.
⑵ urge the construction unit controls the vertical piles
According to design requirements, dental instruments pile vertical deviation of not more than 3 ‰. Secant pile in order to ensure a sufficient thickness at the bottom of the amount of bite, in addition to its strict control orifice positioning errors, but also its vertical strictly controlled.
Pore-forming process to control the verticality of the pile, you must grasp the following three aspects of the work:
① straight cannula degree examination and correction
Secant piles on flat ground before casing straight degree examination and correction, first check and correct single casing straight degrees, and then will follow the entire length of the pile sleeve configured to connect together for the entire root sheath tube (15 ~ 25m) of straight deviation should be less than 10mm. Detection method: measured on the ground emit two mutually parallel lines, the sleeve is placed between the two lines, and a line for testing the hammer and ruler.
② pile into the hole during the vertical monitoring and inspection
a ground monitoring: ground select two mutually perpendicular directions using the line hammer monitoring above-ground parts of the vertical casing, correct any deviations found. This test in each pile into the hole process should adhere to from beginning to end, can not be interrupted.
b check: After installing each section of casing pressure casing before the next section, we must stop to use the "test loop" in the hole verticality checks, failed when the need for correction, until qualified to the next section casing construction.
③ correction
Pore-forming process, such as found in vertical deviation is too large, the importance of timely corrective adjustments require the construction unit, correcting There are three common methods:
a cylinder with a rig for correction: If the deviation is not greater than or buried casing is not deep (5m less), you can directly use the rig two jacking cylinders and two sliding vertical cylinder adjustment sleeve, you can achieve the purpose of correcting .
b pile Correction: If A pile buried 5m large offset occurs below, you can first use drill cylinder direct correction, such as below standard, can be filled with sand to the casing or clay, while filling side uprooted casing, until enhance the sleeve to the last pass the inspection place, and then straighten casing, check and re-qualified under vertical pressure.
c correction: B Pile A pile corrective method is basically the same, the difference is that the casing can not be filled while filling the same with the A pile of concrete, or they may be left in the soil between piles mezzanine, thus affecting the row Pile waterproof effect.
⑶ ultra-retarding Concrete Construction Quality Control
A pile of concrete retarding time should be based on time to determine the pile into the pile, pile into the pile time and geological conditions of the construction site, pile length, pile diameter and drilling capacity factors. According to bite Piles, A pile initial setting time of T = 3t + K + Q;
Where: T - A pile of dental hand piece concrete retarding time t - the time required for single pile into the pile
K - reserve time, usually 1.0t Q - Night downtime
A pile general preliminary control initial setting time of 60h, the construction in the future be adjusted according to the scene.
⑷ occlusal thickness determination
Engagement between adjacent pile thickness d to select based on length of pile, pile shorter occlusal thickness is smaller, thicker pile longer bite, are calculated as follows:
2 (kl + q) ≤ d - 50mm (which is to ensure a minimum pile occlusal thickness not less than 50mm)
Where: l - pile length d - Secant Pile design occlusal thickness
k - pile verticality q - orifice positioning error tolerance

what conditions need to dentistry denture

 Dental denture's main purpose is to restore the normal function of the tooth, to curb the spread of various dental diseases, diffusion, then the conditions under which the dental needs in a timely manner to carry out dental do the following, we on this issue, to listen to the introduction of dental professionals.

    What are the circumstances require to dental denture? Experts pointed out: If caries severely damaged, and there is a large area of ​​apical lesions, except denture teeth before one, resulting in tooth loss. Except for a few missing teeth, most teeth missing, missing teeth full mouth dental needs, the crown of a large area of ​​dead decayed tooth pulp and root after appropriate treatment method can also be repaired to restore form dental hand piece and function of the teeth, so residual root , do not lightly remove residual crown, the best restorative dentist to see whether there is worth retaining.


    What are the circumstances require to dental denture? Generally, after tooth extraction need to wait 2-3 months to denture, this time the wound is completely healed alveolar bone reconstruction completed after denture denture relatively stable.

    What are the circumstances require to dental denture? Dental experts say: Whatever the causes of tooth loss if not treated, can affect people's outward appearance, affect oral chewing function, so in a timely manner is critical denture in denture before the patient's dentist will Oral conduct a comprehensive inspection and analysis of the various factors unfavorable dental treatment for adaptation. In order to further dental denture.

Talking dental dental procedure

 Talking dental dental procedure?

"Dental", said Prosthodontics in Dentistry. It includes dental defects and edentulous repair. Then the dental clinic, dental in the end the whole process of how to do, is a lot to prepare dental patients topic of common concern, we we dentistry denture process to find out.

    Dental experts say: According to dentures denture retention in the mouth in different ways, can be divided into the denture dentures and fixed partial denture two kinds, regardless of what kind of dentures for repair, dental whole process can be divided into High Speed Handpiece the following points.


    First task is to check before denture in denture before the patient's mouth dentist will conduct a comprehensive inspection of the various causes of adverse dental and oral diseases for proper adjustment. Moreover, according to the specific circumstances of the dental hand piece patient's mouth, to select the most appropriate dental materials and dental methods.


    Secondly, according to the patient's oral condition, develop appropriate programs denture cleaning periodontal tartar after going to bite the Indian Dental Hospital, for the production of dentures.


    Again, after making a good dentures, be worn on the wear process, the need to constantly adjust repaired.


    These are dental dental whole process of introduction, Through the above description, you have some teeth the whole process generally understood yet, experts pointed out: missing teeth in a timely manner denture is very critical, the specific choice of a denture, you should then physician comprehensive examination of the patient's mouth under the specific circumstances under the patient's own combination of a number of objective factors.

What are teeth whitening methods

1, baking soda dentifrices:
Baking soda with a toothbrush moistened (food base), according to the normal method of brushing, weekly or twice every three minutes, can make teeth whitening remain bright and clean.
2, except vinegar tartar smoke stains tips:
Regular smokers who smoked on the teeth will be yellow with a black soot, brush with toothpaste is difficult, but it will cause tooth brush with vinegar detergent white. Mouth with half vinegar, in

Mouth rinse 2 - 3 minutes, dental Suction Unit then spit it out, and then forced brushing, and finally washed with water, can be repeated several times in addition to soot. This is a simple method of teeth whitening easiest

Practical method.
3, cuttlefish bone meal can be Effective cleaning:
The cuttlefish bone research into the go to brush your teeth, yellow teeth can be whitened.
4, cellulite can clean teeth toothpaste late to do:
Net cellulite research into fine, mixed with toothpaste when brushing your teeth every day a little, not only can make teeth white, fragrant mouthful, because there is a strong antiseptic sterilization orange peel effect,

Long-term adherence can effectively Guchi.
These methods can only play the role of a temporary whitening teeth, whitening effect is obvious you want to try the following whitening methods.
Teeth whitening method one, the common method of whitening teeth whitening. Disposable, no stimulation, no side dental hand piece effects teeth whitening technology is currently Europe's most

Popular teeth whitening techniques. The technology uses a special cold-light irradiation, teeth whitening could be achieved within a short time, the effect can be maintained for a long time. Teeth whitening applicable

Used because of smoke stains, tea stains caused by exogenous pigment sedimentation teeth with mild tetracycline, dental fluorosis, drug-induced discolored teeth and so on.
Teeth whitening method two, a common method of laser teeth whitening bleaching. Ion laser light at a specific wavelength to activate the catalyst, the bleach drug penetration into the depth of the tooth

Department, reaching the teeth bleaching from the inside out. Laser teeth whitening is characterized by fast, can be repeated, almost no pain, indications right choices effect lasts for more than a decade

, Suitable for medium and mild tetracycline, dental fluorosis, black yellow teeth and so on.
Teeth whitening method three, a common method of teeth whitening whitening porcelain. This is the technology used in dental porcelain anterior teeth whitening methods, teeth whitening porcelain

Is characterized by the appearance of teeth, color, arrangement, hardness, perfect results are achieved naturally, as some have special requirements on the teeth to provide a reliable guarantee.
Teeth whitening method four, a common method of teeth whitening light curing cover. The use of technology in the dental curing photosensitive surface is covered porcelain resin, safe and pain,

Optional color, can be repaired, you can redo, once completed, remained stable for up to ten years or more. For more severe tetracycline, dental fluorosis, yellow teeth and the black

Class due to dental enamel hypoplasia caused discoloration patients. Recommended reading: Teeth Whitening Tips
Although many teeth whitening methods, but we should also serious to choose their own way, so as to improve our teeth whitening effect, the side effects

With minimized.