How to Find The Best Dental Equipment Dental Handpiece

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Here's a video on how to install a dental X-ray machine sensor.

High quality portable dental HDR intraoral X-ray sensor dental imaging plate scanner dental

X ray sensor Professional High Technology : CMOS detector technology with CSI scintillator Ensures optimal resolution Low dose clinical imaging AED Technology : Automatic exposure detection,Fast imaging,easy workflow compatible with different x ray generators. High-speed Direct USB interface Easy to connect to PCs without needing an additional control box Ergonomic Design : Rounded corner,smooth edges,flexible cable Untra-slim Design : 4.4mm sensor,enables maximum patient comfort Multi-languages: Covenient for dentists in different countries and regions. Specification: Theoretical Resolution    25lp/mm True Resolution   20lp/mm Pixel Matrix   1000*1500 Active Area(mm)   20*30 Mechanical Size(mm)   25.4*36.8*4.4 Data interface   USB 2.0 AD Conversion(bit)   16 Protection   IP68  Air pressure : 860hPa~1060hPa;

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Maintenance of Dental Autoclave Sterilizer

Sterilizer is an instrument that can kill or remove all microorganisms on the transmission medium, including bacterial spores and non-pathogenic microorganisms. There are usually three methods: moist heat sterilization, dry heat sterilization, and chemical sterilization.

The Dental Autoclave Sterilizer consists of a water tank, a sterilization chamber, a thermal insulation layer, a door body, a pipeline system, a control system and an outer casing. The sterilizer should have a 121°C or 134°C setting program. The sterilization temperature should not exceed the set temperature of 4 °C; the temperature difference between any two points should not exceed 2 °C; the performance of other products should meet the technical requirements of registered products. Doing good maintenance and maintenance is actually the best way to prolong the life of each instrument and reduce the incidence of failures. There is no shortage of sterilizers. After all, long-term sterilization of sterilizers is also necessary. Better maintenance and maintenance are required.

1. Daily maintenance
1.1 Scrub the exterior of the sterilizer and keep the sterilization chamber clean and dry every day
1.2 Cleaning of the filter screen, the filter screen is easily attached to various fiber debris and sediments, which will seriously affect the speed of vacuuming and the smoothness of condensed water treatment
1.3 Check whether the rubber ring is damaged or not and whether the air inlet is blocked. It is best to apply talcum powder on the rubber strip after using it every day to prolong the service life of the rubber strip.
1.4 Check whether the pointer of the pressure gauge can return to "0", and the degree is not accurate
1.5 After the sterilization work is over, cut off the power supply, turn off the power supply, and turn off the steam power supply.

2. Regular maintenance:
2.1 Clean the inner wall of the sterilization pot with neutral detergent every week; remove the remaining water inside the boiler and close the valve in time
2.2 Pull the handle of the safety valve in the inner chamber of the sterilizer once a month and flush it with steam to prevent its action from malfunctioning. At the same time, it should be noted that the sterilization room must be thoroughly descaled, repaired and maintained at least once a month. When descaling, properly mix water and descaling agent according to the principle of 1:100, and then perform descaling after mixing evenly. After 10 minutes, clean the container and then wipe the container with a lint-free cloth to keep the container dry. The sterilization room and the cleaning car can also be cleaned according to the above method, and the stainless steel parts should be wiped with gauze soaked in paraffin oil.
2.3 Every quarter, let the pressure sterilizer manufacturer carry out large-scale maintenance and repair work on the instrument. For example, check whether the door panel of the autoclave is flat, and remove the cover panel in the autoclave. At the same time, rust should be removed for the rusted parts, and high temperature lubricating oil should be added to the pressure sterilizer.
2.4 Remove the sealing strip every half a year, clean it with soapy liquid, wipe it with alcohol and dry it, and then put it back into the sealing tank; descale the steam generator; clean the air inlet and water inlet pipe filters; And steam generator pressure gauge sent to the Measurement Technology Testing Institute for testing and retain the test certificate.
2.5 The sterilizer and the safety valve of the steam generator are sent to the Special Equipment Supervision and Inspection Institute for inspection once a year and the inspection report is retained.

Whether it is daily maintenance or regular maintenance, it is an opportunity for the instrument to rejuvenate. In the day-to-day work, it can also feel a refreshing maintenance, which can not only prolong the service life, but also stabilize the way it works.  ----From Ruito dental equipment

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Correct use of transparent scaler

Periodontal disease is one of the frequently-occurring and common diseases in oral diseases. The statistical incidence rate is high in all countries in the world. Teeth cleaning is an ideal treatment method for periodontal disease. Ultrasonic scaler is an efficient scaler. It uses high-frequency vibration energy to remove calculus and plaque, especially for calculus, soft scale and pigment attached to the tooth surface. The rational use of ultrasonic scaler is very important. Improper operation will cause damage to the tooth and even the pulp tissue, and will also cause premature wear of the cutter head and loss of power.

1. Principle of action

The ultrasonic scaler consists of two parts: an ultrasonic generator and a converter, and is equipped with a mobile phone, a replaceable working head, and a foot switch. Its working principle is to convert electrical energy into high-frequency mechanical energy, so that the working head vibrates at a high speed. The frequency is between 25kHz and 32kHz. This high-frequency vibration can break the calculus and cause it to fall off the tooth surface. Since the ultrasonic wave causes the high-frequency vibration of the working head to generate a lot of heat, it must be equipped with a cooling system. At the same time, through the cavitation of water It generates pressure locally to clean the surgical area.

2. Clinical Operation

1). Use the modified pen type to hold the handpiece of the instrument, and make a conventional fulcrum in the mouth to stabilize the instrument.

2). Make the long axis of the working head parallel to the long axis of the tooth body, the working angle is not more than 15°, and try to make the working head fit the tooth surface as much as possible.

3). The working head should not stop on the tooth surface. Always keep it moving on the tooth surface. The end of the working head cannot be vertically aligned with the tooth surface. When removing calculus, the pressure should be light, and the calculus should be dislocated by vertical or oblique movements. If the working head is stuck between the teeth, the work should be stopped immediately. Then gently withdraw in the direction of the abduction gap, do not twist strongly, and do not try to withdraw while maintaining the working state, otherwise the cutter head will be easily broken, especially the powerful imported scaler.

4). When the patient wears a porcelain crown and bridge, and the adjacent occlusal surface has fillings, photosensitive resin and other restorations, the working head should not move directly on the coronal surface or fillings, so as to avoid crown cracks or fillings falling off.

5). During subgingival scaling, the side of the working tip moves gently back and forth along the gingival margin, and gradually moves down. The end of the working tip is long and tapered, which can extend into the periodontal pocket, and insert the probe into the periodontal pocket. To a certain depth, guide the working tip to move slowly along the incisal plane of the tooth for 30-60 seconds, and then remove the working tip from the periodontal pocket.

3. Performance characteristics

1). Ultrasonic scaler has the advantages of high speed, high efficiency, time saving and labor saving, constant vibration frequency, high strength, strength, durability, easy removal of calculus, small postoperative reaction of patients, and light tooth sensitivity.

2). Water volume adjustment, the working head is in the form of water mist as the standard. When there is dripping water, it means that the water volume is too large, and the water volume is too small, which will burn the patient's mucous membranes, lips, and damage the teeth and machines.

3). Ultrasonic vibration will produce a real cavitation effect, which is more effective in killing anaerobic bacteria in the periodontal pocket.

4). It can meet various clinical needs and has a wide range of uses, such as removing crowns, removing studs, and replacing special cutter heads for root canal treatment.

4. Cleaning, maintenance and disinfection

The shell, transformer, foot flat wrench, mobile phone line, etc. can be wiped with a neutral and clean soft cloth containing alcohol and no abrasive. The working handle can be sterilized by high temperature, high pressure and chemical disinfection. The front end of the handle can be removed for disinfection.

5. Precautions

1). When the handle is connected to the handle wire, just insert it lightly and do not turn it.

2). The shape, gloss and surface smoothness of each working tip are of extremely high standards. Please do not grind or modify it by yourself.3. When tightening and removing the working tip, it should be done in the direction of the axis of the handle.

4). During use, when the vibration is weakened, please pay attention to check whether the working tip is tightened.

5). When cleaning, just place the handle lightly on the tooth surface, no need to apply force.

6). Patients with bleeding tendency and those with an ultra-pacemaker are disabled.

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Common questions about using dental endo motor and clinical attention for root canal preparation

Dental endo motor Root canal instruments are widely used in oral clinics. So the question is, what are the common questions when using the Dental endo motor?

A. Can Dental endo motor be used for any root canal treatment?

R. The curved and calcified root canal hand、machine combination is safer

A. The surgeon feels that the preparation speed is too slow?

R. 250-400rpm is the safest and most efficient speed for Nitinol

A. Is the torque smaller the better?

R. It is very important to limit the torque, a reasonable torque is the guarantee of cutting force

A. Is it possible to expand while measuring?

R. The main purpose of expanding while measuring is to prevent the expansion of the apical foramen. For conditions that cannot be accurately adapted to root measuring, the expanding while measuring cannot be used.

A. Can measuring and expanding at the same time replace the root canal measurement alone?

R. Root canal measurement is affected by a variety of environments, and root canal treatment should strictly follow the sequence of "establishing a straight path - root canal measurement - preparation" to prevent accidental risks

A. What kind of machine do users use to expand needles?

R. Generally speaking, any brand of nickel-titanium expansion system can be used, each with its own characteristics, which mainly depends on the cost-effectiveness and the familiarity of the doctor.

How to prevent broken endomotor root canal file

① To prevent endomotor root canal files breakage, the operator's experience is the key

1. Learning about the machine and endomotor root canal files allows you to reduce the risk of use;

a. Control the torque and speed It is best to set the torque control motor and the matching speed. Following the torque recommended by the endomotor root canal files manufacturer, speed is especially important for treatment safety.

b. Measure the length of the instrument each time it enters the root canal. Instruments that are too long increase the risk of torsional fracture. Equipped with root canal length measuring instrument, calipers, etc. for working length measurement.

2. The correct operation method is very important: do not pressurize and force the tip. The instruments cannot stay in the root canal for too long;

3. Instruments should be checked before surgery,

a. The fracture of instruments mostly occurs in molars, especially in small and narrow root canals such as the mesial root canals of upper and lower molars, and special care should be taken before treatment;

b. Curved root canals, re-treatment and calcified root canals require special requirements for instruments and manipulations, and it is best to use a new root canal files;

4. Establish a straight path to maintain an unobstructed root canal, pay attention to gestures during operation, and try to ensure that the enlargement root canal files and the root canal path are in a straight line to reduce the bending resistance of the enlargement root canal files at the crown and the stress on the instrument;

5. The root canal should be kept fully lubricated and should be flushed every time it is prepared;

6. Because the inside of the root canal is narrow, do not put pressure on the enlargement root canal files during operation, and the cutting should be done completely by the power of the machine itself and the sharp edge of the enlargement root canal files;

7. In the case of inexperience, it is safest to use the recommended minimum torque. In general, lower rotational speeds will extend the clinical life of the device and reduce the chance of breakage.

② Efficient and safe, excellent equipment is the guarantee

1. Nickel-titanium expansion requires both rotational speed and torque. Inappropriate rotational speed and overloaded torque are important factors for root canal files breakage.

2. Control the torque and speed Follow the torque recommended by the expanding root canal files manufacturer.

3. Measure the length of the instrument each time it enters the root canal. Equipped with root canal length measuring instrument, calipers and other tools for working length measurement.

③ Select and use the expanding root canal files

1. In addition to the difference in material and design, different endomotor root canal files are very knowledgeable, including the bonding of the blade spiral.

Familiar with the performance of nickel-titanium instruments, use methods and root canal preparation techniques. Such as: the endomotor root canal files of mature big brands, such as Protaper, profile, K3, etc., all advocate the use of root-oriented technology;

2. With the continuous update of nickel-titanium root canal instrument technology, the domestic enlarged needles have made great progress. The design and manufacture of nickel-titanium root canal enlargement root canal files with higher cutting efficiency, better forming ability, less stress and stronger fracture resistance have been improved in new materials and manufacturing processes. For example, the sc enlarged file has special channel file and open file. The system is 0.02 and 0.08 respectively, and its tip diameter is 15mm and 30mm, respectively. The special heat treatment process makes the nickel-titanium resistant to torsion and bending fatigue, and can rebound. Performance and life be greatly improved.

3. Choose and use the endomotor root canal files well, and control the number of times of use when using it: when using it, you should observe more whether there is wire drawing or deformation, and if you find it, you must discard it in time, otherwise you will regret it;

4. Taking SC-Pro as an example, it is recommended to have 25-30 root canals for anterior teeth and 1 or so root canals (or 5 posterior teeth) for posterior teeth. The preparation of sharply curved root canals will cause great damage to the instruments and is recommended for one-time use. After each use, it is best to record the number of uses to prevent the equipment from fatigue; the debris of the enlarged root canal files blade should be cleaned repeatedly and in time, and a cleaning table should be equipped.

Clinical treatment steps and precautions

① Requirements for opening the pulp hole (medullary cavity preparation):

removal of the entire medullary roof;

The wall of the pulp opening should be in line with the apex 1/3 of the root canal, and there is no resistance between the instrument and the wall of the coronal root canal;

Make the temporary sealing drug retain well;

Provide a space for the irrigation fluid to flow, and minimize the damage to the tooth tissue.

Steps: local anesthesia---adding the rubber dam---removing all the humus---removing the pulp top---forming a straight line with 1/3 of the root tip.

② Determination of root canal length

Be sure to have the exact working length before doing the apical 1/3 preparation.

(1) Subtract 2mm from the preoperative film as the estimated root canal length (IL)

(2) 06 or 08# file and pre-bend the tip to estimate the length of the root canal, prepare the root canal to the 10 or 15# file and enter the root canal, and feel stuck, if the root canal diameter is larger than 10 or 15 #File, you can directly select a file that can be held for diagnostic root length measurement.

(3) Parallel projection X-rays.

(4) WL=IL±d-1, + if the instrument is shorter than the root hole, - if the instrument exceeds the root hole.

(5) If the instrument is more than 4mm away from the root hole, the diagnostic wire photography should be readjusted.

(6) If the length of the diagnostic wire is adjusted with a root length measuring instrument before the diagnostic wire is used, the distance between the diagnostic wire and the apical foramen can be avoided.

③ Principles of root canal irrigation

Flushing should include the number of flushes, the amount of fluid to be flushed and the depth of flushing. Before root canal preparation, every file change, before trying the main gutta-percha and before sealing the medicine, it should be rinsed, and the amount of each rinse should be more than 1-2mm. The role of the rinse solution: rinse, disinfect, lubricate, dissolve organic matter, bleach. The most commonly used rinsing fluid is NaOCl. Root canal preparation must be done in moist conditions. The irrigator should be open on the side of the tip, and the irrigator should be loosely placed in the root canal. The mechanical flushing effect only occurs at the part where the flusher reaches, therefore, the flusher should be placed at a sufficient depth, and the flushing speed should not be too fast and the force should not be too large.

④Principles of root canal preparation

Before the root tip 1/3 is prepared, the working length must be accurate; the root canal must be kept moist during root canal preparation to ensure adequate irrigation; the root canal file should not be skipped; the root canal file should be pre-bent; the minimum expansion of the root apex is 25 #, easy to fill; according to the difference of the initial filing, the MAF of each tooth is different, generally 2-3 sizes larger than the initial filing. If the MAF is less than 60#, a 4mm retreat preparation should be done, 1mm each time. If the MAF is greater than 60, it should go back and expand by 2. Preparation of the coronal 2/3: The purpose is to provide sufficient access for the lateral compression device to reach the apical region. The lateral pressure device should be able to reach the apex of 2 mm, otherwise it will not be able to form a good apical sealing effect. GG BUR 2# should reach no less than 6mm apex, or 2/3 of the working length, GG BUR 3# is 2-3mm shorter than GG BUR 2#. Reconditioning of the root canal wall: The MAF file is pre-bent to the working degree to make the root canal wall smooth. Check the taper of the root canal preparation with a lateral pressure. The lateral pressure device corresponding to the MAF should be able to freely reach 1-2 mm from the apex; the apical stenosis is obvious and there is a clear stop (STOP); no debris is deposited within a few mm of the apical area; the root canal wall is smooth without Step; 2/3 taper of root canal crown is sufficient, greater than the taper of gutta percha and the corresponding taper of lateral pressure

⑤ Notes on root canal filling

Root canal filling methods: cold lateral pressure, hot lateral pressure, vertical pressure.

Choice of main gutta-percha tip: freely enter 1-2mm from the apex and feel tight (TUGBACK); consistent with or slightly larger than the prepared MAF; within 0.5mm of the working length; in the apical stenosis blocked.

Notes for root filling: The root filling paste should be applied only to the root canal wall; the paste should be applied using a paper twist or a file equivalent to MAF; the tip of the main gutta-percha dipped in paste is inserted to the working length; the lateral pressure device should be able to reach The distance from the working length is 1-2mm; generally, only 2-3 auxiliary tips with the same taper as the lateral pressure device are recommended; if the main apex is found to be short or over 2mm on the postoperative apical radiograph, it should be refilled.

Problems in root canal preparation

(1) Loss of working length

Causes: root canal blockage, shoulder formation, instrument breakage, accumulation of dentin debris in the apical area, etc.

The precautionary principle: reference point fixation

Fixed stopper position

Pre-bent all root canal files

Note that the curve of the root canal file should be consistent with the curve of the root canal

The X-ray projection angle should be consistent

Preservation of root canal preparation

Repeated use of small files to open the root canal (recapitulation)

Prepare root canals one by one.

(2) Root canal blockage:

Causes: dentin debris, filling material blocking the apical area, etc.

Preventive principle: remove carious tissue and unbase glaze before pulp opening

The root canal orifice should be adequately prepared;

Rinse extensively to remove debris;

The root canal file should be cleaned when it enters the root canal again;

The root canal file cannot be skipped;

Repeated use of small files to open the root canal (recapitulation);

Do not over-rotate or force the file;

Do not prepare root canals in dry conditions;

Temporary seal perfect;

Treatment method: try 15#K file or expander to pass the blockage

The tip of the 10#K file is bent 3-4mm into a 45-degree angle, and it is rotated along the circumference of the blockage to find the feeling of being stuck (catch). blockage. And according to X-ray to determine. EDTA helps.

If the blocked part cannot pass, it should be prepared to the blocked part, and root filling should be done, and regular observation; the root tip can also be plasticized, and the root filling can also be plasticized. Root surgery if necessary.

(3) Ledging and shoulder passing:

Reason: root canal file has no pre-bending, shoulder formation, etc.

Change the file too fast, skip the number.

Prevention of Shoulder Formation: Preparatory Steps for Small, Curved, Calcified Root Canals

exact working length

The medullary cavity is filled with NaOCl

Pre-bend 06#, 08# and 10# root canal files, and gradually reach the working length. Use the step-by-step root canal file preparation method and 1-3mm short strokes (in-and-out strokes).

The shoulder can be removed if detected early, but it is more difficult to remove the shoulder produced by the 25# or 30# file. The method is the same as through the root canal blockage.

(4) The method of breaking and taking out the instrument:

prevention:

① Replace the new file in time:

② After the root canal file reaches the working length, you can only do the file action, 1-3mm pulling; do not rotate

Use of H file: H file can only be used for lifting in loose root canals.

Treatment: The instrument is broken at the root canal orifice, and the instrument can be exposed for 2mm along the periphery of the instrument with a small bur, and taken out with a small blood vessel forceps.

The instrument is broken deep in the root canal, and the ultrasonic method is used.

If the broken instrument is firmly stuck in the root canal, apical surgery should be performed. The broken instrument is closely combined with the dentin of the root canal wall, and the prognosis is good. If the broken instrument is loose in the root canal or out of the apical foramen, surgery should be performed.

(5) Changes in the position of the apical foramen (zipping, transposition, transportation)

Reason: The root canal file was not pre-bent, and the preparation device for the root canal curve was too large and too hard.

Appearance: teardrop

Prevention: pre-curve root canal file; prepare in the opposite direction of curvature (anticurvature filing).

Treatment: teardrop-shaped formation, which can be filled by various methods; if the apical foramen is displaced and perforated, a paste containing Ca(OH)2 should be used; elbow-shaped structure formation (elbow) is best to use vertical compression method root Charge. Radical surgery should be performed if treatment fails.

(6) Insufficient or excessive root canal preparation

Problems and countermeasures in root canal filling

(1) The main gutta percha tip cannot reach the working length

Cause: dentin debris clogging the apical area;

shoulder formation;

Insufficient taper or poor continuity of the root canal;

Artificial root canal formation or straightening of curved root canals, loss of working length;

The gutta-percha tip is too large or the taper is not standard.

Treatment method: The main file is used to prepare the root canal again to reach the apical area, and each file should be properly pre-bent; diagnostic wire photography is used to determine the problem; a lot of rinsing to remove the blockage; after the root canal is re-prepared and dried, the main file should be used again to determine The apical area is well prepared.

(2) The main gutta-percha tip has no tightness

Reason: The apical area is prepared at 25-40#, sometimes it is difficult to feel tightness, and it is easy to feel tightness above 40#;

The taper of the main gutta-percha tip is poor, and the main gutta-percha tip is too small;

Discontinuous taper of root canal preparation, displacement and deformation of the apical foramen;

dentin debris remains in the root canal;

Treatment method: Change the taper of the tip of the main gutta-percha tip

The use of gutta percha (GP gauge): the too-fine gutta percha tip must have a diameter hole one size larger than the gutta percha gauge, and cut off 0.5-1mm.

(3) The root filling in the apical area is not dense

Reasons: The apical area is not patency or the taper is insufficient, and the lateral pressure device cannot reach the apex;

The auxiliary gutta-percha tip is not dipped in root filling paste, the auxiliary gutta-percha tip is not long enough to reach the depth reached by the lateral pressure device, or the tip is curved;

Side pressure is too large;

Too much root filling paste;

Excessive accumulation of dentin debris in the apical area (1-3mm)

Tips for buying a dental handpiece

With more and more brands of dental handpieces on the market, everyone is dazzled. Each manufacturer has the key points and selling points of publicity, making it difficult to know where to start when purchasing dental handpieces. Faced with so many choices, how to choose Where to buy? RUITO DENTAL EQUIPMENT COMPANY will give you some advice. First of all, when buying a dental handpieces, you must pay attention to the following four basic principles:
Several properties affecting cross-infection control
1. Safety performance
1). Whether the dental handpieces material selection and surface coating can withstand high temperature and high pressure disinfection above 135 degrees. Inferior metal or dental handpieces with poor coating process, the surface will be damaged after repeated high temperature and high pressure sterilization, which will affect the hand feel and not beautiful when used.
2). Whether the machine head has an anti-suction design: The anti-suction design is actually a precise one-way valve. Its function is like the valve in the heart or blood vessel, which only allows water to flow out, but cannot be sucked back. In this way, cross-infection caused by back suction can be effectively avoided. Even with the strict sterilization of the handpiece, there is still a risk of contamination in the lines of the dental unit! Anti-suction device can effectively prevent such pollution!
3). Whether it can accept professional hot cleaning: In developed countries, hot cleaning has long been included in the standard for disinfection and cleaning of oral instruments. Hot cleaning will greatly reduce the chance of people coming into direct contact with contaminated dental handpieces and will eventually become mainstream. Therefore, a good dental handpieces must be able to withstand the high pressure hot water flow in the thermal washer.
4. Whether there is a built-in filter: Advanced dental handpieces bearings are very precise, so the requirements for water quality are also higher. A replaceable built-in filter will be designed in the entry pipe of the dental handpieces to purify the water source.
A key feature that affects the safety of treatment: the cooling device of the dental handpieces
Every dental handpieces must have a spray, but it is not necessarily whether it has cooling in place. If the pulp is thermally damaged due to poor cooling, which leads to pulp lesions after tooth preparation, it will be troublesome. Moreover, there is often no reason for this complication. Because, there is no problem in operation? Pay attention when purchasing:
How many holes is the dental handpieces spray? The best is of course four-hole spray, with more cooling, even if there is a problem with one hole, the other holes can still ensure the cooling effect. But the dental handpieces with a porous spray is much more expensive than a single-hole spray. Where is the spray point on the head of the dental handpieces? Where does the spray reach the bur? The direction of the spray is very important. A good dental handpieces requires the spray to be stable and accurate, so as to ensure that the water mist gathers on the cutting point and achieves the cooling effect.(There is a good quality but reasonable price of Ruito dental handpieces,welcome to contact us to get price)
2. Work efficiency
1).The power of the dental handpieces: the greater the power, the greater the torque, and the displacement of the root car is similar, so there is no need to explain it.
2). The coating material on the surface of the dental handpieces and the anti-slip design: This is very important to the hand feel, whether it is comfortable to hold in your hand, you can only make a choice after you have experienced it yourself.
3). The weight of the dental handpieces and the pipeline is evenly distributed, and the position of the gravity balance point: the center of gravity is not good either.
4). The angle between the head and the fuselage: the angle has a great influence on the operation, especially for patients with limited posterior teeth and openings, improper angle will make the work difficult and the field of vision is unclear.
5). Dental handpieces noise: the quieter the better, everyone knows it.
6). Dental handpieces fiber brightness: it is best to be close to natural light. 25000LUX
7). Whether it is a quick-connect interface: the advantages of quick-connect connectors are many, but they are expensive.
8). Whether it is a push-type chuck: The thimble-type chuck is not as convenient as the push-type chuck, but the clamping force of some brands of push-type chucks is not enough, so be careful.
9). Dental handpieces maintenance materials and methods: This is the most easily overlooked issue. Many people buy a good dental handpieces, but they do not maintain it, which seriously affects the performance of the dental handpieces.

3. Service life
This is performance that everyone is concerned about. If there are frequent problems with the dental handpieces, which affects work efficiency and affects work mood, the following points determine the service life: brand and place of origin: the brand is very important, and the place of origin is also very important. The same brand may produce different things in different places. Everyone knows that big manufacturers build factories all over the place, but their core technologies may still be reserved. Therefore, it is best to buy a dental handpieces from a big brand and the original factory. Bearing material and process: First of all, look at the brand, ceramic bearings are generally better than steel ball bearings, but inferior ceramic bearings are not as good as good brand steel ball bearings.(Ruio dental handpice used for imported ball ceramic bearing with long working life)
The material and craftsmanship of the internal pipeline of the dental handpieces: This is invisible to ordinary people. If you purchase in large quantities, you can let the manufacturer show the internal structure.
4. Cost of use
Cost control is a very professional thing. A lot of statistical work needs to be done. For clinics, calculating the cost of a dental handpieces should not only look at its unit price, but should carefully calculate its usage, maintenance costs, etc., and make a comprehensive assessment. It is better to have more detailed records and analysis to find out the most critical factors that affect the cost and make improvements, rather than blindly buying low-priced products. Low-priced products only reduce the cost of purchase, but not necessarily effectively reduce the cost of use.
The simplified algorithm of the second is: ABC algorithm
A: The unit price of the dental handpieces
B: Maintenance cost: mainly maintenance oil
C: Number of uses: only approximate estimates, of course, it is better to record each time. Usage cost=(A+B)/C
I believe that everyone should pay attention to the following four basic principles when purchasing a dental handpieces, and also know how to choose a suitable dental handpiece in the future. For clinics with a large workload, you also need to calculate the doctor’s labor cost. If the doctor’s time It is very valuable, and it is also worth considering if you choose a high-end dental handpieces to save effective time.

How to use dental LED curing light?

Dentist Dental LED Curing Light wire type, directly connect with dental unit to use. built-in lamp curing unit inside without battery it is easy for all the ways shipping. environmental plastic shell green and black 2 colors to choose. 1.5 meter silica material long wire enough for the dentist to operate. At the same time, better antioxidant and longer service life. the LED curing light for dental use 5W high power LED, 12mm high permeability glass fiber-optic light guide. There with 3 working modes of operation strong, flashing and gradually strong, the light intensity between 1200 to 2000 mw/cm² suitable for all brands of resin materials. About the working time can be adjusted to 5-40s. for the small packing to save more space in the shipment. Main unit of the dentist dental LED curing light with 2 years warranty. We are the manufacturer majoring in producing LED curing lights from 2010 to now already 11 years.  Stable quality, reasonable price and the efficient delivery speed of the curing light are popular with customers both at home and abroad. Mass or small orders are welcome, meanwhile the OEM service is available also.

Specification:

item:value Input

Voltage :110V- 240V AC/50-60hz

Lithium battery voltage :DC 4.2V

LED Light Power :5W

Battery Output Voltage :DC3.6V /2200mAh

Single package size :23X17.2X5.3 cm

Lithium battery capacity 1400mAh

Solidify time and depth 5S / 3 mm

Light wavelength 420-480nm

Light intensity 1200-2000mw/cm2

Weight 0.57kg 

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