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EXTRACTION OF PERMANENT TEETH 257
Fig. 130.—Types of inferior first and second molars. First row—first four teeth, buccal sur-
face of first molars; second four teeth, buccal surface of second molars. Second row—first four
teeth, lingual surface of first molars; second four teeth, lingual surface of second molars. Third
row—first four teeth, mesial surface of first molars; second four teeth, mesial surface of second
molars. Fourth row—first four teeth, distal surface of first molars; second four teeth, distal sur-
face of second molars. (From Winter's Kxodontia.)