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It is significant of the progress of periodontia as a science that after only four years the author felt impelled to revise his former textbook to include valuable new findings and improvements in technics. This volume is comprehensive not only as to all phases of dental health but as to its relation to physical health as well. The increasing life span has brought gerodontia (dentistry for the aged) to the fore as an obligation of the practicing dentist. The highest goal in oral health service may be achieved by the dentist only through sound knowledge of disease processes and efficient methods for their treatment. The conquest of periodontal disease is an accomplished fact, where heretofore pyorrhea was considered incurable. Prevention of the disease is of primary importance. If not too far advanced, it may be cured. This book gives an adequate presentation of the principles of treatment from therapeutic and
S. Miller (Sat,) studied this question.