. Diseases of the nose and throat . symptoms are obstruction to the saliva, and sorenessin the floor of the mouth. It may cause suppuration, thepus leaking out with the saliva. If the calculus is largeit can be palpated, if small the diagnosis can sometimes bemade by the x-ray, or with a fine probe introduced into theduct. Treatment consists in removing it by incision throughthe floor of the mouth. A calculus very rarely forms in Stenos duct. RANULA Ranula is a cystic collection of a thick mucoid substancein the floor of the mouth, generally on one side of the frenumof the tongue. It for
. Diseases of the nose and throat . symptoms are obstruction to the saliva, and sorenessin the floor of the mouth. It may cause suppuration, thepus leaking out with the saliva. If the calculus is largeit can be palpated, if small the diagnosis can sometimes bemade by the x-ray, or with a fine probe introduced into theduct. Treatment consists in removing it by incision throughthe floor of the mouth. A calculus very rarely forms in Stenos duct. RANULA Ranula is a cystic collection of a thick mucoid substancein the floor of the mouth, generally on one side of the frenumof the tongue. It forms a bluish-gray soft swelling, withfew if any symptoms. Its etiology is not certain. It maybe incised and kept open until the cavity is obliterated. THE MOUTH AND TONGUi; 335 THE TEETH There are normally twenty temporary or milk teethand thirty-two permanent teeth. Although they varyin their time of eruption the average age is as follows, theteeth on the lower jaw preceding the corresponding oneson the upper by a varying Fig. 67.—The temporary or milk Teeth 2 lower middle incisors, 6- 8 months. 4 upper incisors, 8-10 months. 2 lower lateral incisors, 12 months. 4 canine, 14-20 months. 4 first molars, 12-14 months. 4 second molars, 20-36 months. Permanent Teeth Middle incisors, 7 th year Lateral incisors, 8th year Canines, nth year First bicuspids, 9th year Second bicuspids, 10th year 33^ DISEASES OF THE NOSE AND THROAT First (or six year) molars, 6th year. Second (or twelve year) molars, 12th year. Third molars (or wisdom teeth), i7th-2 5th year.
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectnose, bookyear1915
