Complex sentence: The most unexpected facility, though, may be the dentist's office: the dentist usually arrived at around 2pm, after finishing at his regular clinic, and works for six or seven hours; some of his patrons are local residents rather than truckers.
Split into simpler sentences: The most unexpected facility, though, may be the dentist's office. The dentist usually arrived at around 2pm, after finishing at his regular clinic, and works for six or seven hours; some of his patrons are local residents rather than truckers.