Introduction - Dental anesthetic management in ICD recipients with CCh can be challenging due to the potential risk of life-threatening arrhythmias and appropriate ICD therapies during procedural time. We assessed the hypothesis that the use of local dental anesthesia with 2% lidocaine with 1:100.000 epinephrine or without a vasoconstrictor can be safe in selected ICD and CCh patients, not resulting in life-threatening events. Methods and Results - Restorative dental treatment under local dental anesthesia was made in two sessions, with a wash-out period of 7 days (cross-over trial), conducting with a 28h - Holter monitoring, and 12-lead electrocardiography, digital sphygmomanometry, and anxiety scale assessments in 3 time periods. Ventricular/supraventricular arrhythmias frequency, device shocks, corrected QT interval and dynamic changes in right precordial leads in BrS were also analyzed. All patients were in stable condition with no recent events before the dental care. Twenty-four consecutive procedures were performed in 12 patients (9 women, 3 men) with CCh and ICD: 7 (58.3%) had LQTS, 4 (33.3%) had BrS and 1 (8.3%) had CPVT. Holter analysis did not demonstrated increased heart rate or sustained arrhythmias. Blood pressure, electrocardiographic changes and anxiety measurement showed no statistically significant differences. No life-threatening events occurred during dental treatment, regardless the type of anesthesia. Conclusions - Lidocaine administration, with or without epinephrine, can be safely used in selected CCh-ICD patients without life-threatening events, as long as the protocol is followed. These preliminary findings need to be confirmed in a larger population with ICD and CCh.