The novel coronavirus (2019-nCoV) emerged in Wuhan, China, in December 2019, causing a severe pneumonia outbreak that rapidly spread to other provinces and countries. 2019-nCoV shares the same host receptor, angiotensin-converting enzyme 2 (ACE2), as SARS-CoV but has a higher binding affinity. The natural host of 2019-nCoV is likely the bat *Rhinolophus affinis*, with a 96.2% whole-genome identity to BatCoV RaTG13. Transmission routes include direct contact (coughing, sneezing, droplet inhalation) and indirect contact (saliva, fomites). Dental professionals are at high risk due to face-to-face communication and exposure to saliva, blood, and sharp instruments. The article recommends infection control measures in dental practices to prevent person-to-person transmission, including patient evaluation, hand hygiene, personal protective equipment, pre-procedural mouthrinses, rubber dam isolation, anti-retraction handpieces, and strict disinfection protocols. These measures aim to reduce the risk of 2019-nCoV transmission in dental clinics and hospitals.The novel coronavirus (2019-nCoV) emerged in Wuhan, China, in December 2019, causing a severe pneumonia outbreak that rapidly spread to other provinces and countries. 2019-nCoV shares the same host receptor, angiotensin-converting enzyme 2 (ACE2), as SARS-CoV but has a higher binding affinity. The natural host of 2019-nCoV is likely the bat *Rhinolophus affinis*, with a 96.2% whole-genome identity to BatCoV RaTG13. Transmission routes include direct contact (coughing, sneezing, droplet inhalation) and indirect contact (saliva, fomites). Dental professionals are at high risk due to face-to-face communication and exposure to saliva, blood, and sharp instruments. The article recommends infection control measures in dental practices to prevent person-to-person transmission, including patient evaluation, hand hygiene, personal protective equipment, pre-procedural mouthrinses, rubber dam isolation, anti-retraction handpieces, and strict disinfection protocols. These measures aim to reduce the risk of 2019-nCoV transmission in dental clinics and hospitals.