<prompt>  A 32 year old male patient complains of swelling in left maxillary region with heaviness in the maxillary sinus following tooth extraction of maxillary first molar. Patient gives a history of tooth extraction one week before with transalveolar type of extraction.The average mucociliary air flow transport in the maxillary sinus is5 to 20mm per min5 to 20 cm per min5 to 20 km per min5 to 20 dm per min 