Mandibular Incisors, Cuspids, and Bicuspids

Dental Extraction Forceps for Lower Jaw

Two commonly used extraction forceps for the mandibular anteriors and bicuspids are

Dental Forceps No. 151

Forceps No. 151 are used primarily to extract mandibular anteriors, bicuspids, and roots and are often known as the mandibular universal forceps. These forceps are similar to the Dental Forceps No. 150 forceps except the beaks are set at an angle opposite to the slightly curved handles.

Dental Forceps No. 203

Dental Forceps No. 203 are used on mandibular anterior, bicuspids, and roots. These forceps are like the #101 (mentioned later), except the beaks are more sharply angled from the handles. Like the #101 handles, the #203 handles are straight (fig. 5-40).

Amalgam Carriers & Instruments

Introduction to Amalgam carriers

Amalgam carriers are used to pick-up, transport, and pack freshly mixed amalgam into the prepared cavity. There are two types of carriers:

the lever and plunger type.

  • Plunger Type - Single Ended

  • Lever type – Single or Double Ended.

The freshly mixed amalgam is loaded into the carrier and the plunger or lever pushes the material out from the working end into the cavity preparation. Care must be taken to expel the excess amalgam before it sets inside the working end because it will be hard to remove it when it has already set. The inside walls of the tube is sometimes coated with Teflon so that the amalgam will not stick.

Amalgam Carriers are available in various sizes from small to large. A double-ended type always has tubes of different sizes of each end: a pair of small and bigger diameter tube.

Amalgam Well is an instrument that has a depression on the center and is usually made of metal, plastic or glass. The triturated amalgam is placed into the amalgam well, loaded into carrier, and placed immediately into prepared cavity.

Amalgam Plugger is very helpful in condensing the material inside the cavity to achieve a compact restoration that is more resistant to fracture and dislodgement.

The tip of the working end of the instrument comes in different shapes: either flat, rounded, or diamond. The flat type is the most ideal because the pressure applied on the material in uniform all through the entire width.

Amalgam Pluggers with flat surfaces are of two kinds: the serrated and non- serrated form. Endodontic plugger is used to condense root canal filling materials. The long tapering working end is thin enough to fit into the root canal.

Beavertail or Straight Burnishers have nibs that resemble a beaver’s tail: having a broad flat blade which is smoothly continuous with the shank and meets in a slight curve while the edges and the point are smoothly rounded.

Woodson Burnisher is a combination of carrier and condenser. The flat paddle-shaped end is used to carry the temporary cement and composites into the prepared cavity and the plugger end is used to condense the material.

Ball Burnisher is one with a nib in the shape of a ball and the shank may be mono-angled or curved.

Acorn Burnishers
have diamond shaped heads that either smoothly join the shank or with constriction in the junction of the nib and shank. The pointed tip of the head is used to create grooves, pits, or fissures on the amalgam and also on other restorative materials. Acorn burnishers may be mono or bi-angled.

Football Burnishers
, with a head shaped like a football, are also good for initial carving. All burnishers are available in single or double ends.

Dental Instruments Manufacturing

Manufacturing Steps

Dental Instruments Manufacturing takes lots of steps and a single piece of instrument has to undergo 20-30 manufacturing stages before it could get ready. Following is the detail of those steps in brief. Fore more information on that, please write to us at dentalforceps@gmail.com

1. Steel
The quality of steel is very important in the production of quality instruments. The best you select the best you produce. In order to ensure the finest of quality steel, we have imported or best quality local steel as required by valued customers.

2. Forging
Forging is a process of cutting shaped raw instruments with the help of dyes and hammers. Here, the skilled hands give life to the metal and give it the rudimentary shape that will go through series of complicated processes.

3. Forging Inspection
At this stage, forged tools are checked to ensure no piece contains any cracks or is reshaped beyond acceptable limits. Checking the quality of raw instruments for: -

a. Shape fault

b. Broken

4. Machining
In this process forging is cut or shaped by machines i.e. cutting sharp edges and raw material in the shape. Here instruments are given their shape through grinding and hammers. For this purpose, extremely skilled labor is required and this process is carried out by instrument specialists only.

5. Milling
Drilling of holes in the instruments where required for screws. Different kids of screwing machines are used and instruments are made pairs here. Instruments with even the slightest difference in whole positions will suffer otherwise.

6. Inspection

At this stage, all the instruments are inspected not only for machining and milling, but for every process they’ve been through. It’s the stage where only best instruments are selected and instruments with tiny holes and manufacturing faults are again sorted out.

7. Filling
At this stage the steel is not too hard so filling is used to shape the instruments in the exact shape they are required to be. The workers match the shape exactly with the samples provided at this stage. So the instruments get most of their shapes at this stage.

8. Filling Inspection
After filling the inspection is made and measurements and shapes are checked according to samples.

9. Binding and Temper
At this step the instruments are bound in groups of 12 pieces. Then they put them in temper machine, which is filled with a particular material. Here instruments are tempered and its ensured that every instrument get equal heat and treatment so a consistent quality would achieve.

10. Snaffing Fitting
For scissors and forceps they are in two pieces so they are joined in this process with screw. Forceps (Tweezers) are joined before and their joint is leveled with a machine by burning the raw material on the joint. At the same stage, instruments are filled to eliminate welding suspensions.

11. Plant or Heat Treatment
In this process the instruments are dipped in a material by hanging for five minutes to harden the material.

12. Polishing
Instruments are polished at this stage. Till this point at manufacturing stage, all the necessary shaping is done. Polishing makes every millimeter of instrument clear and any instrument with hidden defects are revealed could be sorted out.

13. Q. A Inspection 2%
2% of each lot of instruments is checked by executives and then go the further processing. In inspection they see each and every part and defective parts are marked with red marker and if rejected send to polishing again.

14. Ultrasonic Cleaning
In this process the instruments are dipped in two materials for cleaning the polish raw thing on it. 1 min. for first material and then for half min. for other material. Ultrasonic cleaning cleans any polishing material stuck and leaves the instrument crystal clear.

15. Lubrication
All the instruments involving screws are lubricated at this step. Lubricating the instruments moveable portions facilitates the instrument movement.

16. Tuck checking
In this process workers check the cuts and all other things just by viewing the instruments individually.

17. Etching
Putting each instrument on stamp pad and burning process to put stamp on each instrument. This stamping procedure is done through electronic etching machines that make the stamp reliable and even sustainable under high boiling temperatures when instruments are sterilized.

18. Cleaning and Checking
Instruments are cleaned and checked again one by one. Again it’s the checking for operation, measurements, polish and usability.

19. Q. A Inspection 4 %
4% of the instruments are inspection by Q. A. Directors. Samples for inspection are taken randomly and are observed to every bit of detail. Even the slightest difference from acceptable standards could result in rejection of whole lot.

20. Packing
Packing in boxes each contains 100 pieces. 10 Boxes in a Carton. Here instruments are packed with respect to sizes and types. Instruments boxes are properly labeled and stored in proper storing environment.

21. Labeling
Labels are put in this process.

22. Storage
Storage by lot and order number

23. Delivery
Instruments are finally delivered

Following processes are also included as required.

Passivation

Boil Test

Gold plating in different manner.

Copper Sulphate test.

Dental Forceps Blog

Dental Forceps & Instruments at its Best

Dental Forceps & Instruments blog is starting new section of our website, the Dental Instruments online store. www.dental-forceps.com