Enter a New Dimension of Endodontic Efficiency

Simple. Efficient. Predictable. While these qualities are ideal in any dental workflow, they’re invaluable when it comes to navigating the inherent complexities of root canal procedures. However, endodontic instrumentation that delivers by all 3 metrics is a rarity—just ask Adham A. Azim, BDS, DDS, an endodontist and educator who serves as chair of the Endodontic Department at the University of the Pacific, Arthur A. Dugoni School of Dentistry.

“Some of the most efficient instruments require more experience to operate, while those that are simpler can often be more time-consuming and less reliable,” said Dr. Azim. To bridge this gap, Dr. Azim worked alongside Brasseler USA to develop XP-4D: a new line of endodontic instrumentation designed to make adaptive shaping and predictable canal obturation accessible to all.

Like the previous-generation XP-3D instruments, XP-4D enables exceptionally efficient, conservative root canal treatment, but thanks to an improved nickel-titanium (NiTi) file design, adds even more simplicity, speed, and predictability to every procedure.

Expand the Possibilities of Treatment

Unlike traditional, solid-core NiTi files, Brasseler’s XP instruments incorporate exclusive MaxWire Technology and a small, flexible, free-floating core that adapts to the intricacies of natural canal anatomy. Along with optimized heat treatment, these innovations reduce the risks associated with excessive cyclic fatigue and stress on the tooth, instead permitting safe, efficient shaping and cleaning of the canal system with a single file.

XP-4D's unique design also affords next-level control and precision, preventing under- and over-preparation of canals. “I can confidently say that it is the most conservative rotary instrument on the market today,” Dr. Azim affirmed.

While XP-3D derived its name from its ability to expand in the canal space three dimensionally, XP-4D instruments address the ever-important fourth dimension: time.

“Many systems claim they are a ‘single-file system,’ but efficiency is determined by how many times you need to push the file in the canal to accomplish the job,” he explained. “With XP-4D’s patented design, the first 4.5 millimeters of the instrument are a regular rotary file with a .03 apical taper. Combined with the ‘loop’ design of the XP Shaper found in the body of the file, it advances quickly and smoothly in the canal.”

The XP-4D system includes 4 files: starter (tip size 20), standard (tip size 30), medium (tip size 40), and large (tip size 50). It conveniently features matching bioactive gutta-percha and paper points for easy obturation, as well as various file lengths to suit a range of clinical needs and preferences.

Superior Results with a Streamlined Workflow

For experienced XP-3D users, XP-4D simply provides a “more advanced, convenient way of operation,” Dr. Azim assured. But for dentists new to XP instrumentation, he offers a couple of pro pointers. “First, it’s important to note that the operational speed of this file is 1,000 rpm,” he shared. Although this is at least double the speed that many practitioners are accustomed to when running rotary instruments, Dr. Azim emphasized that XP-4D files must be used at the recommended rpm to ensure safe, efficient treatment.

Second, because XP lets clinicians do more with fewer files, it requires a slight adjustment to operator technique. “A typical system uses 4 or 5 files, each generating minimal debris. But with XP-4D, once the working length is established with either a size #8 or #10 hand file, you can reach size #30 at the apex and complete treatment with 3 to 5 strokes each of the system's starter and standard rotary files,” Dr. Azim explained.

Faster advancement through the canal with just 2 files means more debris generation, so irrigation should be used to keep canals wet and avoid packing debris. Likewise, rather than using a 2-millimeter-at-a-time pecking motion, Dr. Azim recommends advancing the file in 4- or 5-millimeter increments, completely disengaging it from the canal between each insertion.

Minimally Invasive Endo for Everyone

Ultimately, the streamlined workflow offered by Brasseler’s XP-4D files enables both specialists and general practitioners to deliver endodontic treatment that not only aligns with minimally invasive principles, but keeps pace with the modern dentistry today’s patients expect.

“Our aim in developing XP-4D is to make every dentist feel more comfortable performing root canals,” said Dr. Azim. “If clinicians embrace this technology, I think they’ll find it makes their lives simpler, more efficient, and helps them consistently provide better, more conservative treatment.”