Laser Focus World is an industry bedrock—first published in 1965 and still going strong. We publish original articles about cutting-edge advances in lasers, optics, photonics, sensors, and quantum technologies, as well as test and measurement, and the shift currently underway to usher in the photonic integrated circuits, optical interconnects, and copackaged electronics and photonics to deliver the speed and efficiency essential for data centers of the future.

Our 80,000 qualified print subscribers—and 130,000 12-month engaged online audience—trust us to dive in and provide original journalism you won’t find elsewhere covering key emerging areas such as laser-driven inertial confinement fusion, lasers in space, integrated photonics, chipscale lasers, LiDAR, metasurfaces, high-energy laser weaponry, photonic crystals, and quantum computing/sensors/communications. We cover the innovations driving these markets.

Laser Focus World is part of Endeavor Business Media, a division of EndeavorB2B.

Laser Focus World Membership

Never miss any articles, videos, podcasts, or webinars by signing up for membership access to Laser Focus World online. You can manage your preferences all in one place—and provide our editorial team with your valued feedback.

Magazine Subscription

Can you subscribe to receive our print issue for free? Yes, you sure can!

Newsletter Subscription

Laser Focus World newsletter subscription is free to qualified professionals:

The Daily Beam

Showcases the newest content from Laser Focus World, including photonics- and optics-based applications, components, research, and trends. (Daily)

Product Watch

The latest in products within the photonics industry. (9x per year)

Bio & Life Sciences Product Watch

The latest in products within the biophotonics industry. (4x per year)

Laser Processing Product Watch

The latest in products within the laser processing industry. (3x per year)

Get Published!

If you’d like to write an article for us, reach out with a short pitch to Sally Cole Johnson: [email protected]. We love to hear from you.

Photonics Hot List

Laser Focus World produces a video newscast that gives a peek into what’s happening in the world of photonics.

Following the Photons: A Photonics Podcast

Following the Photons: A Photonics Podcast dives deep into the fascinating world of photonics. Our weekly episodes feature interviews and discussions with industry and research experts, providing valuable perspectives on the issues, technologies, and trends shaping the photonics community.

Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology

6 Ways to Tell If You Might Need a Root Canal

NEW YORK CITY, NY / ACCESS Newswire / October 15, 2025 / NEW YORK, NY / ACCESS Newswire / October 15, 2025 / If you've got persistent pain in one of your teeth, it might be a sign that you need a root canal. A root canal is a common dental treatment to help remove bacteria that have taken up residence inside the pulp of a tooth. A dentist will clean out the infected pulp, fill in the remaining space using specialized material, and seal the tooth with a permanent crown to restore your smile.1 They may use localized anesthesia to numb your mouth, making the procedure far less painful than you might expect.

Root canals can bring up all kinds of anxiety, from worries about your experience during the procedure to concerns about cost. Some of this anxiety may be fueled by not knowing when a root canal is necessary. Here are six common signs you might need a root canal so you can take control of your dental health.

1. Severe tooth pain

One of the biggest signs that a root canal may be necessary is regular tooth pain.2 This pain may be persistent throughout the day or only noticeable when you bite down. You might also feel pain in the surrounding area, including the gums and jaw.

2. Sensitivity to heat and cold

If your tooth becomes overly sensitive to hot drinks like coffee or cold foods like ice cream, it may indicate that you need a root canal. This sensitivity may linger even after you've stopped eating or drinking.3

3. Pimples on your gums

Bacteria inside your tooth may cause pimples to appear on your gums near the affected area. The gums might also be sensitive and swollen, making it difficult to eat. You may also notice your breath worsening or a persistent bad taste in your mouth.4

4. Loose teeth

If there is an infection inside a tooth requiring a root canal, the tooth may start to feel loose. This is because the infection weakens the nearby bone, causing instability.

5. Discolored teeth

Gray or black coloration of the tooth may indicate that the pulp inside the tooth has started to decay. This may be easier to see in your front teeth than your back molars.

6. Cracked tooth

While a root canal may not be necessary every time a tooth becomes cracked or chipped, this may allow bacteria easier access to the sensitive pulp inside the tooth. Always check with your dentist anytime you discover a cracked tooth or cavity.

Root canals may seem overwhelming, but by paying attention to these signs, you can catch the problem early and avoid any complications. Talk to your dentist if you notice any issues that you might think require a root canal. The process is quick, often only taking an hour, meaning you might be on your way to relief sooner than you might think. The most important thing is not to let your fear of the procedure or the root canal cost get in the way of treatment. It may seem scary, but a root canal can help you find relief in the long run.

Contact Information:

Name: Sonakshi Murze
Email: Sonakshi.murze@iquanti.com
Job Title: Manager

SOURCE: iQuanti



View the original press release on ACCESS Newswire

More News

View More

Recent Quotes

View More
Symbol Price Change (%)
AMZN  213.04
-1.43 (-0.67%)
AAPL  252.29
+4.84 (1.96%)
AMD  233.08
-1.48 (-0.63%)
BAC  51.28
+0.84 (1.67%)
GOOG  253.79
+1.91 (0.76%)
META  716.91
+4.84 (0.68%)
MSFT  513.58
+1.97 (0.39%)
NVDA  183.16
+1.35 (0.74%)
ORCL  291.31
-21.69 (-6.93%)
TSLA  439.31
+10.56 (2.46%)
Stock Quote API & Stock News API supplied by www.cloudquote.io
Quotes delayed at least 20 minutes.
By accessing this page, you agree to the Privacy Policy and Terms Of Service.