Endodontic Rotary Files

Endodontic Rotary Files

Endodontic Rotary Files

As we know, endodontic rotary files is with a long history.   

I. The development of root canal treatment Although the treatment of periodontal disease of the pulp has a long history, root canal treatment is one of the youngest professional disciplines in dentistry.

Grossman divided the history of root canal treatment from 1776 to 1976 into four phases:

1776-1826: The leeches treat the abscess teeth, burn the pulp with red-hot wire, and fill the root canal with gold foil.

1826-1876: General anesthesia, rubber plaque, the appearance of gutta-percha, the original broaching needle and root canal, and arsenic used to kill the pulp.

1876-1926: X-ray invention, application of local anesthesia, application of root canal disinfection (CMCP).

1926-1976: X-ray, local anesthesia and root canal treatment methods gradually improved. The widespread use of Ca(OH)2 EDTA formulations has led to a gradual reduction in the use of arsenic and silver needles.

Endodontic Rotary Files

Since 1976, root canal files treatment is more than 20 years of development, root canal treatment technology has made significant progress: the latest development: Microscopic root canal treatment and microscopic apical surgery 2. Machine nickel-titanium rotating root canal preparation equipment: vertical pressure technology such as Profile Protaper, such as obtura II, ultrafil 3D, Thermafil, etc.; step-down and crown-down preparation (crown-down) )application. 3. Application of root canal repair new materials such as MTA 4. Accurate measurement techniques for root canal length, such as digital X-ray instant imaging, and widespread use of root canal length measuring instruments. 5. Ultrasound root canal treatment techniques such as: removal of foreign bodies, treatment of calcified root canals, apical surgery, root canal washing and so on. 6. Application of Ca(OH)2 in-line sealing.

Clinical treatment steps and points of attention Reaming hole requirements (medullary cavity preparation): remove all the medullary top; the wall of the open medullary hole should be in line with the root tip 1/3 of the root canal, no resistance between the instrument and the canal root canal wall; if Good; provide space for the flushing fluid to flow, and damage the tooth tissue as little as possible. Step: Local anesthesia - on the rubber barrier - remove all humus - reveal the top of the marrow - forming a straight line with the root tip 1/3. 2. Determination of the length of the root canal: Before doing the root tip 1/3 preparation, it must have an accurate working length.

Hereafter, we continously to inroduce some operating skills of endodontic rotary files.endodontic rotary files

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