The 37-year-old man was sitting at home working when his two-year-old son threw a toy car that hit his father in the mouth, injuring a tooth.
The Administrative Court considered that the accident had its basis in private and family life and was therefore not an occupational injury.
The Court of Appeal reasons differently
The majority of the court states that the man performed his work at home in the employer's interest.
The court points out that the accident was not directly caused by his duties but rather by "the dangers of daily life".
The Court of Appeal states that it is not possible to set higher requirements for the accident and work at home than for other accidents that occur outside the workplace.
Försäkringskassan, which last year rejected the man's application for compensation for dental care costs, will get the case back for further processing.