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Synopsis of oral histology
DEPARTMENT
OF REVIEWS Edited
A11 communications the acceptance of
addressed
Synopsis
of Oral
by
AND DR.
ABSTRACTS
J. A. SALZMANN,
New York City
concerning father information about abstracted material and articles or books for consideration in this department should be to Dr. J. A. Salzmann, 654 Me&son Avenue, New Pork City.
Histology
By S. N. Bhaskar, St. Louis, 1962. The C. V. Mosby Company, illustrated. Price, $7.75.
295 pages,
This book presents a summary of the embryology and microscopic anatomy of the oral tissues, Development of the embryo, the face, and the oral cavity is discussed. The histologic appearance of the dental tissues, including the periodontal ligament, bone, the soft oral tissues, the glands of the oral cavity, and the temporomandibular jcint, are included, as are discussions on the eruption and shedding of teeth. Normal and abnormal developmental anatomy of the face and jaws are presented. This reviewer does not believe that the author’s definition of basal bone as the base of the alveolar process will prove helpful to orthodontists. Tooth eruption is described as taking place when pressure is brought to bear upon the alveolar bone tissue which surrounds the deciduous teeth. Because of this pressure, osteoclasts differentiate in the connective tissue which separates the permanent crown from the deciduous socket. The osteoclasts then begin complete resorption of the bone tissues separating the permanent from the deciduous tooth. The part of the deciduous tooth which undergoes resorption depends upon the location of the permanent tooth and the direction in which it is moving. If it lies lingual to the deciduous tooth, resorpt,ion of the deciduous roots starts from the lingual side. As the permanent tooth erupts, it shifts labially. The deciduous root is resorbed from both its lingual and its labial aspects. Resorptive changes of the deciduous roots are not a continuous process but occur in waves of activity, according to Bhaskar. When the root of the deciduous tooth can no longer function and support the tooth crown, the tooth is lost. Deciduous teeth are retained when the permanent tooth is missing or ankylosed. Congenitally missing permanent teeth and retained deciduous teeth are most frequently found in the upper buccal regions. They are also found in the canine region when the permanent canine erupts ectopically. This book contains many illustrat,ions which will bc of interest to orthodontists and gives a brief review of t,hc development of the facial bones and eruption of the teeth. J. A. S. 704
OF REVIEWS Edited
A11 communications the acceptance of
addressed
Synopsis
of Oral
by
AND DR.
ABSTRACTS
J. A. SALZMANN,
New York City
concerning father information about abstracted material and articles or books for consideration in this department should be to Dr. J. A. Salzmann, 654 Me&son Avenue, New Pork City.
Histology
By S. N. Bhaskar, St. Louis, 1962. The C. V. Mosby Company, illustrated. Price, $7.75.
295 pages,
This book presents a summary of the embryology and microscopic anatomy of the oral tissues, Development of the embryo, the face, and the oral cavity is discussed. The histologic appearance of the dental tissues, including the periodontal ligament, bone, the soft oral tissues, the glands of the oral cavity, and the temporomandibular jcint, are included, as are discussions on the eruption and shedding of teeth. Normal and abnormal developmental anatomy of the face and jaws are presented. This reviewer does not believe that the author’s definition of basal bone as the base of the alveolar process will prove helpful to orthodontists. Tooth eruption is described as taking place when pressure is brought to bear upon the alveolar bone tissue which surrounds the deciduous teeth. Because of this pressure, osteoclasts differentiate in the connective tissue which separates the permanent crown from the deciduous socket. The osteoclasts then begin complete resorption of the bone tissues separating the permanent from the deciduous tooth. The part of the deciduous tooth which undergoes resorption depends upon the location of the permanent tooth and the direction in which it is moving. If it lies lingual to the deciduous tooth, resorpt,ion of the deciduous roots starts from the lingual side. As the permanent tooth erupts, it shifts labially. The deciduous root is resorbed from both its lingual and its labial aspects. Resorptive changes of the deciduous roots are not a continuous process but occur in waves of activity, according to Bhaskar. When the root of the deciduous tooth can no longer function and support the tooth crown, the tooth is lost. Deciduous teeth are retained when the permanent tooth is missing or ankylosed. Congenitally missing permanent teeth and retained deciduous teeth are most frequently found in the upper buccal regions. They are also found in the canine region when the permanent canine erupts ectopically. This book contains many illustrat,ions which will bc of interest to orthodontists and gives a brief review of t,hc development of the facial bones and eruption of the teeth. J. A. S. 704