With its core advantages of precision and controllability, minimally invasive procedures with low pain, and rapid postoperative recovery, laser technology has deeply integrated into all aspects of dental diagnosis and treatment. From basic treatments such as caries management and periodontal care to advanced procedures like cosmetic dentistry and implant restoration, it is gradually replacing some traditional instruments (such as dental drills and surgical scalpels), becoming an essential tool in modern dental practice. 

• Minimally Invasive and Low-Pain Treatment: As a non-contact approach, laser dentistry selectively targets diseased tissues, minimizing collateral damage to adjacent healthy structures. In most instances, local anesthesia is either unnecessary or limited to topical application, substantially alleviating patient discomfort and anxiety.
• Integrated Hemostasis and Sterilization: Lasers possess the unique ability to instantaneously cauterize small blood vessels with diameters less than 0.5mm, creating a virtually bloodless surgical field. Additionally, they effectively eliminate over 90% of pathogenic bacteria in the treatment area, reducing the postoperative infection rate by more than 50%.
• Accelerated Healing Process: Laser energy stimulates cellular activity, promoting collagen synthesis and vascular regeneration. This results in a 30% to 50% reduction in healing time compared to traditional surgical methods. For example, gingival surgeries typically heal within 7 to 10 days, as opposed to the 14 to 21 days required with conventional techniques.
• Precision and Control: By fine-tuning laser energy levels and spot sizes, dentists can achieve “selective treatment”—targeting only carious tissue while sparing healthy dentin. This precision minimizes the risk of overtreatment.
• Broad Applicability: Laser dentistry is particularly well-suited for patients who may pose challenges with traditional treatments, including children, those with dental anxiety, and elderly patients on anticoagulant medications. This versatility significantly mitigates treatment risks.

 Precautions：

1. Qualified Practitioners: Laser dental procedures should be performed exclusively by dentists who have completed specialized laser training programs. This safeguards against potential tissue damage, such as gingival necrosis or nerve injury, which can occur due to excessive energy or prolonged exposure.
2. Safety Precautions: All parties involved in laser dental procedures—dentists, patients, and assistants—must wear specialized laser-protective eyewear to prevent retinal damage from direct or reflected laser exposure.
3. Contraindications:
   • Pregnancy and Lactation: The use of certain laser types may pose risks, requiring careful evaluation and, in some cases, avoidance.
   • Metal Restorations: Laser treatment should be avoided in areas of the oral cavity with metal restorations, such as crowns or implants, to prevent tissue damage from laser reflection.
   • Medical Conditions: Patients with severe coagulation disorders or immunodeficiencies should disclose their conditions to their dentist prior to treatment to allow for appropriate adjustments to the treatment plan.
4. Post-Treatment Care: For the first 24 hours following treatment, patients should avoid consuming extremely hot, cold, or spicy foods. Maintaining strict oral hygiene is essential, and patients should use prescribed mouthwash as directed. In some cases, antibiotics may be prescribed to prevent infection.