GDC Dental Instruments
Every GDC instrument is manufactured and controlled with the utmost care. Any instrument, which during its proper use, proves defective in material and/or workmanship will either be replaced or repaired without charge for our customer.
Handles of the instruments (different types and material)
The handles of GDCinstruments are manufactured with AISI 304 - class 3, AUSTENITIC stainless steel (no hardening treatments). This kind of stainless steel grants a very high resistance to wear and corrosion.Because the use of handles with different diameters help to prevent an excessive fatigue of the operator’s hand, our instruments are sup-plied with different types of handles.

The instruments for diagnostic and restorative purposes are supplied with a stainless steel, full, round handle, with a diameter of 6 mm.

Surgical instruments: the periosteals are supplied with a stainless steel, hollow, round handle, with a diameter of 8 mm.

The other surgical and periodontal instruments are supplied with a new lightweight, hollow, stainless steel handle with a larger diameter of 10 mm. It grants the maximum comfort for the operator with a great r eduction of hand and finger fatigue. In particular it has shown to prevent carpal tunnel syndrome acquisition.
Working tips (materials)
Non-cutting tips: AISI 420 - class 4, MARTENSITIC stainless steel (subjected to hardening treatments). This kind of stainless steel grants a good resilience, a very good mechanic resistance to traction and torsion and an excellent resistance to wear and corrosion.

Cutting (sharpened) tips: AISI 440 - class 4, MARTENSITIC high grade carbon stainless steel (subjected to hardening treatments). This kind of stainless steel grants a good resilience, a ver y good mechanic resistance to traction and torsion, an excellent resistance to wear and corrosion and a very high hardness degree.

Furthermore, the tips manufactured with high-grade carbon stainless steel alloy give the instrument a proper rigidity and a long lasting cutting capacity.

Thanks to the most modern production techniques, the working tips ar e inserted into the handles by mechanical pressure. Therefore, no chemical adhesives or soldering are used, reducing to the minimum, the risk that the tip could come out off place.
Main characteristics
Tips manufactured with superior quality stainless steel
Maximum resistance to wear and corrosion
Tips of the cutting instruments manufactured with high grade carbon stainless steel alloy
Efficient and long-lasting cutting edges
Possibility of re-sharpening with stones (Arkansas, India etc.)
  or with sharpening machines
Tips aligned on the central axis
Optimal distribution of the weight all along the instrument’s length
Perfect balance of the instrument
Ergonomic design of the handle with gentle textured groove
Maximum grip and reduced risk of slipping
Easier to clean
Super lightweight and larger diameter handles – 10 mm.
Maximum tactile sensitivity
Maximum comfort
Maximum muscular relax
Maximum reduction of hand fatigue
Minimum risk of carpal tunnel syndrome acquisition
Processing and maintenance of the dental instruments and stainless steel instrument trays and cassettes
Stainless steel alloys - Even if the main characteristic of the stainless steel alloys used for the manufacturing of dental and surgical instruments is the very high resi-stance to corrosion, some problems such as loss of colour, corrosion, loss of physical/chemical properties, may arise if they are exposed, for longer than the recommended period of time, to some chemicals/chemical concentrations.Stainless steel instruments, trays and cassettes should not be exposed to a prolonged action of Chloride solutions.Stainless steel instruments, trays and cassettes should never come into contact with the following chemicals: Chlorine solutions, Hypo-chlo-rites, Ferric Chlorite, Hydrochloric Acid, Iodine.Carbon stainless steel alloys (used for the tips of the cutting/sharpened instruments)Carbon stainless steel alloys are guaranteed to reach a very high hardness level and therefore perfectly sharpened and long-lasting blade-ed-ges. However these particular alloys are more sensitive to the action of chemicals and the instruments made with this material require particular care:
carefully dry the instruments immediately after hand or ultrasonic cleaning
keep the cutting/sharpened instruments separate from other instruments during cleaning and sterilization processes
rust-inhibitor detergents should only be used for the cleaning process
All instruments must be disinfected, cleaned and sterilized prior to each use. Furthermore, disinfection, cleaning and sterilization processes are also required before the first use of new, non-sterile instruments. Effective disinfection and cleaning processes are indispensable requirements to obtain proper instruments sterilization.
Disinfection: immediately after the use immerse the instruments into a decontaminating solution. Contaminated instruments must be disin-fected as early as possible in order to assure the maximum safety to the dental office staff when handling contaminated instruments. Pay close attention to the correct dosages and exposures times.

Cleaning: instruments must be properly cleaned before sterilization. Cleaning can be made by hand, by ultrasonic apparatus or by washing machines.

Hand cleaning: wash the instruments with warm water and a non-corrosive, neutral detergent. For scrubbing use only stiff plastic brushes, do not use steel wool or metal wire brushes. Warning! Handle the contaminated instruments with care and use protective gloves to avoid the risk of injuries.

Ultrasonic cleaning: use proper non-corrosive, neutral detergent. It is better if the detergent contains a rust inhibitor solution. Immerse the in-struments into the ultrasonic apparatus basin containing the washing solution and process them for the full recommended cycle time. Change the washing solution frequently, following the manufacturers recommendations.After the hand or ultrasonic cleaning, carefully rinse the instruments (preferably using demineralised water) in order to remove all the residues of the washing solution.

Automatic washers: strictly follow the manufacturers instructions and recommendations. Consider the instructions of the detergent manufac-turers regarding concentration and soaking time. Completely disassemble instruments, if possible, before processing them.Preferably place the instruments in a cassette or other tray system suitable for the instruments to prevent damages (avoid any contact between the instruments).

Do not overload the washer unit and be sure that all instruments are fully accessed.Remove the instruments from the washer unit only after the end of the program.

Drying: immediately after rinsing the instruments, these should be carefully dried with paper towels or better still with a blow of compressed air.

Checking: inspect the instruments for proper function and condition. Remove any rusted, stained or not properly functioning instruments (rust can be transmitted to other instruments or to the autoclave inner walls). Sharpen instruments if necessary and remove completely any residues from the sharpening process, such as metal residue or sharpening oil. Lubricate, with a paraffin based lubricant, all the instruments with hinges, locks and other moving parts. Remember that all the hinged instruments (pliers, forceps, scissors, needle holders etc.) should be sterilized in an open position. Never lock an instrument during the sterilization cycle because it may develop cracks in the hinge areas due to metal expansion caused by the heat.If you put the instruments in sterilizing envelopes carefully check their sealing.

Sterilization: Warning ! The sterilization of the instruments does not replace the cleaning. The sterilization is a process that eliminates all the infective micro-organisms and should be performed after the proper cleaning of the instruments. The different sterilization methods can be commonly verified in the dental office by the “Spore Testing”.

Autoclave sterilization: the sterilization process is accomplished by high pressure hot steam. Do not overload the autoclave and strictly follow the instructions and recommendations of the manufacturer of the sterilizing apparatus.

Dry heat: the sterilization process is accomplished by dry heat. Instruments should be absolutely dry before performing this sterilization pro-cess. Sterilizing envelopes cannot be used. Strictly follow the instructions and recommendations of the manufacturer of the sterilizing appa-ratus.

Cold liquids: the sterilization process is accomplished by the action of the liquid solutions classified as cold sterilizing agents. After the im-mersion into the sterilizing solutions the instruments should be properly rinsed using sterilized water, in any case, always strictly follow the instructions and recommendations of the manufacturer of the sterilizing solution used.

Storage: any sterilized instruments should be preserved inside the sterilizing envelopes, containers, trays, cassettes etc. in a specific and pro-tected location, with a constant temperature and humidity. Avoid unnecessary handling prior to next use.
The above mentioned suggestions regarding the processing of the dental instruments have the primary aim to preserve the patients and the dental office staff from the risk of cross contamination. At the same time the professionals should not forget that if such procedures are carried out with method and care, the instruments, manufactured with the utmost of care using selected raw materials, can properly perform their duty and last for a long time giving full satisfaction.
Every GDC instrument is manufactured and controlled with the utmost care. Any instrument, which, during its proper use, proves defec-tive in material and/or workmanship, will either be replaced or repaired, at our discretion, without charge.
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