Complex sentence: Damage to the parotid duct is also likely for people whose parotid ducts run deep to the buccal fat pad, which can lead to hematoma and may affect salivation.
Split into simpler sentences: Damage to the parotid duct is also likely for people whose parotid ducts run deep to the buccal fat pad. Parotid duct damage can lead to hematoma and may affect salivation.