Sleep bruxism in children is a multifactorial phenomenon, and in recent years increasing attention has been paid to its possible association with time spent using electronic devices, referred to as screen time. The aim of this review is to summarize current evidence on the relationship between screen time and sleep bruxism in children. Eight original studies published within the last 10 years were included in the analysis. Available studies suggest that such an association may exist, although the findings are not entirely consistent. Some data indicate that prolonged screen time may be associated with a higher frequency of possible sleep bruxism, while other studies suggest that this relationship may be indirect and primarily related to poorer sleep quality, circadian rhythm disturbances, and the co-occurrence of emotional and behavioral problems. Other factors, such as excessive intake of added sugar, may also play a role. Current evidence suggests that screen time may be one of the factors associated with sleep bruxism in children, but further research is needed, especially prospective studies based on standardized diagnostic criteria for sleep bruxism.