RT Journal T1 FRactures of the jaws JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1939 FD March 11 VO 112 IS 10 SP 1013 OP 1013 DO 10.1001/jama.1939.02800100123029 UL http://dx.doi.org/10.1001/jama.1939.02800100123029 AB The second edition of the textbook published in 1931 has required little change in the light of the authors' experience in the interim. Twelve pages have been added together with alterations and additions to illustrations. The chapter contributed by Leroy M. Ennis, D.D.S., dealing with roentgenographic technic has been carefully revised. The final chapter, on dietary management in fractures of the jaws, by Clyde W. Scogin, D.D.S., remains essentially unaltered. The material is logically organized. A brief summary of clinically significant anatomic features is followed by a short general discussion of etiology, types, signs and symptoms of fractures. The greater incidence of fractures of the mandible warrants the more extended space devoted to the lower jaw. Statistics with respect to cause and location of fractures are based on a rather limited number of cases. It is interesting to note the increase from 8 to 25 per cent of fractures due