Lasers in Orthodontics

Digital smile designing

LASER is an acronym for ‘light amplification by stimulated emission of radiation’. Fundamentally, a laser beam is a focused source of electromagnetic radiation, or light-energy. Simply, a laser beam is a concentrated source of light energy composed of one wavelength, which travels in a specific direction, and all wave lengths of the laser light travel in phase. These properties differ from ordinary light, which is diffuse and non-coherent, allowing laser light energy to target accurately and with high intensity.

A Dental Laser is designed specifically for use in dentistry. Its usage in soft tissue is since 1990 and in hard tissue in 1996.


  • Argon laser
  • CO2 laser
  • Erbium lasers
  • Nd yag Laser
  • Diode laser

Soft tissue lasers

Erbium lasers are both hard and soft tissue capable. They can be used for a host of dental procedures, and allow for more procedures to be done without local anesthesia. Erbium lasers can be used for hard tissue procedures like bone cutting and create minimal thermal and mechanical trauma to adjacent tissues. These procedures show an excellent healing response. Soft tissue applications with erbium lasers have rapid healing times with minimal postoperative pain. Soft-tissue lasers can also be used for aesthetic contouring of the gingiva within the smile framework, establishing tooth proportionally prior to bracket placement, crown lengthening, treatment crown height asymmetry or contouring of gingival and interdental margins. Nd:YAG lasers are primarily used for soft-tissue applications such as frenectomies, papillectomies and gingival incision.

Hard tissue lasers

Hard tissue surgical lasers are dominated by Er:YAG lasers operating at the wavelengths of 2.94 µm. Laser eye surgery utilizes excimer lasers in the UV range of wavelengths. Unlike many solid-state and diode lasers in the visible and near infrared wavelength range (600-2,000 nm), the carbon dioxide laser wavelength (10.6 µm) is highly absorbed by in-vivo soft tissues containing water. Furthermore, modern CO2 laser technology makes these lasers far more affordable than solid-state Er:YAG lasers,[citation needed] which also feature a wavelength that is highly absorbed by water. Because of their wavelength and precision, CO2 lasers remain the dominant soft-tissue surgical lasers.


  • Tooth Decay
  • Gum Disease
  • Biopsy or Lesion removal
  • Healing of ulcers
  • Crown Lengthening in Gummy smile cases
  • De-pigmentation
  • Teeth whitening
  • Effective cleaning of Root canal in RCT treatment

Advantages of Lasers over scalpel blade

  • No Bleeding and swelling
  • No pain / preserves healthy Tissues.
  • Less usage of Anesthetic Agents
  • Faster & better healing
  • very minimal medications