Popular culture often associates lasers with science-fiction weapons or real-life space exploration, but the technology can also be used inside the human body. At the Phoenix Endodontic Group, our endodontists frequently use laser-based tools to assist in root canal treatments.

The practice uses laser technology manufactured by Fontana (SSP and SWEEPS®) and Biolase (Waterlase) at its Phoenix office location. Both brands of tools provide extra assistance in the critical phases of cleaning and disinfecting tooth roots during a root canal treatment.

Lasers Bring Benefits During A Root Canal Treatment

1. The laser can provide initial cleaning in the coronal (crown) area of the tooth. An endodontist will begin a root canal by creating an opening in the crown. The laser can be used in this area of the tooth to remove calcifications and biological debris.

2. The laser can assist cleaning of the root canals. After a canal has been prepared using files or other tools, the endodontist may flood the canal with water and activate the laser while withdrawing the water from the space. The laser creates vapor bubbles, which collapse to form microbubbles and a pressure wave; these phenomena are what clean biofilm from the canals.

3. Laser treatment can also help disinfect the canals as they are being irrigated. Once the endodontist shapes the canals with their files, they will irrigate them with disinfecting liquids. Lasers can be used at this point to augment the disinfection process, with the pressure wave created by the vapor bubbles pushing the disinfectant deep into the canal recesses and generally making the process more effective than the traditional disinfecting step by itself.

4. Finally, lasers can be used to remove the chemical disinfectants prior to filling the canals. After the canals have been cleansed, shaped and disinfected, the laser tool can be used to remove the disinfecting liquid in the canals by activating it for about 30 seconds to vaporize any remaining liquid.

According to Dr. Jacqueline S. Allen, who practices at the Phoenix Endodontic Group, “One significant advantage to using lasers during root canals is that they can provide a more thorough removal of bacteria, debris and other materials without the risk of apical (tooth root area) extrusion.” She continues, “We are happy to explain to patients how we use Fontana and Biolase laser technology to enhance the safety and effectiveness of their root canal treatments.” 

Fixing a cracked tooth can be like figuring out the damage after a car accident. If you don’t have a professional check things out, what looks like a surface dent can actually turn out to be really serious. Since dental bone does not behave like other types of bone and cannot knit itself back together, a chip or a crack to the tooth is likely to get worse over time.

In the case of a cracked tooth, your repair expert is an endodontist. Endodontists are experts in saving natural teeth. They frequently see clients with a cracked tooth, and can use their dental specialty training to determine if additional intervention such as a root canal is needed before placing a crown on the tooth.

When Does A Cracked Tooth Need A Root Canal Before A Crown?

The main job of a dental crown is to provide structural support by acting as the new outer surface of a tooth. Before a crown is cemented into place, your endodontist will want to make sure the natural tooth underneath the crown is as healthy as possible. If there is any injury or infection in a tooth’s nerve pulp, a root canal can provide a healthy tooth underneath.

With a crack deep enough to damage the root pulp, a root canal will be needed to prevent further difficulty, possibly extraction. It can be difficult to tell from symptoms alone if you need a root canal before you get a crown placed on your cracked tooth. Some cracked teeth that need a root canal before the crown hurt a lot; some do not. Some teeth with large cracks do not have root/nerve damage, but some teeth with much smaller cracks may have infected nerve pulp that must be removed via a root canal.

It’s important to see your endodontist right away because there are some types of cracked tooth injuries that cannot be remedied with a root canal and a crown. If the crack in the tooth extends below the gum line, it’s highly likely that the tooth will need to be extracted.

“It’s vital to have an endodontist perform a careful evaluation of a cracked tooth – what you can see on the surface may not be an accurate picture of the entire situation,” says Dr. Susan L. Wood, who practices with the Phoenix Endodontic Group. “Our office can perform the diagnostic procedures needed to determine if a root canal is called for before a crown is placed on the tooth.”