evaluation the effect of swimming time on dental erosion among swimmers m. mehdipour 1 , a. taghavi zenooz 2 , n. gholizadeh 3 , a. bahramian 4 , n. sartip pour 5 1 associate professor, department of oral medicine , school of dentistry, shahid beheshti university of medical sciences. tehran, iran 2 associate professor, department of oral medicine , school of dentistry, tabriz universi...