An important part of the root canal process is the initial preparation. Mechanical debridement eliminates tissues from the canal. Canal therapy creates the space in which to disinfect the root area using medicaments and irrigants. This mechanical preparation and chemical disinfection are known as “chemo-mechanical preparation”.
A substantial innovation in endodontics has been the development of rotary nickel-titanium (NiTi) instruments. These instruments are adept at negotiating curved canals and creating tapered preparations. In the past few years, many new instrument systems have become available, some of which work better than others.
The one used by our practice, however, is preferred due to several features. Lightspeed files are designed to instrument at the apex, the most important part of the root canal system. Its unique design makes it very flexible, and prevents binding the canal walls anywhere but at the apex. This allows Lightspeed files to safely enlarge the apical diameter.
Since apical foramen is almost never round and often has the narrow diameter of #20 file or larger, traditional instruments did not allow for proper cleaning of the apex. By enlarging the foramina to encompass both narrow and wide diameters, most of the apical bacteria and their byproducts are eliminated using the Lightspeed Rotary Instruments.