In recent years,with the further introduction of the concept of minimally invasive treatment,laser therapy has been widely used in the diagnosis and treatment of oral diseases due to its good bactericidal,bacteriostatic,hemostatic,analgesic,and healing-promoting effects.The stimulation of healing process and pain relief are the most popular uses of laser therapy.In the clinical diagnosis and treatment of chronic periodontitis,diode laser coupled with periodontal ini-tial therapy has been recognized by many scholars and has achieved certain clinical effect.This pa-per reviews the clinical efficacy of adjuvant diode laser treatment for chronic periodontitis and cone beam CT analysis.