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Dental caries experience of school children in corvallis, oregon, after 7 years of fluoridation
Volume S4 Number 2
No. 3, March, 1961. Stciker, D. D., Mellman, W. ]., Bongiovanni, A. M., Eberlein, W. R., and Leboeuf, G.: Turner's Syndrome in the Male, p. 321. No. 4, April, 1961. *Tank, G., and Storvick, C. A.: Dental Caries Experience of School Children in Corvallis, Oregon, After 7 Years of Fluoridation of Water, p. 528. *Silverman, W. A.: The Effect of the Atmospheric Environment on the Premature Infant, p. 581. Tank and Storvick: Dental Caries Experience of School Children in Corvallis, Oregon, After 7 Years of Fluoridation, p. 528. The authors report on their experience after changing the fluoride concentration of water from 0.1 ppm to 1.0 ppm in January, 1953. They conclude that ( 1) the dental caries rate of the permanent and primary teeth was significantly reduced by 7 years of exposure to fluoridated water; ( 2) a significant reduction was shown in the number of decayed and missing permanent teeth, decayed primary teeth, and teeth indicated for extraction; ( 3) there was a marked increase in the number of filled permanent and primary teeth after fluoridation as compared to the preftuoridation data; (4) reductions in the number of decayed, missing, and filled first permanent molars became greater with progressive increasing periods of exposure of the teeth to fluoridated water; (5) after fluoridation, more than twice as many children were free from caries experience of the permanent or primary teeth as had been before fluoriSchuyler G. Kohl dation. Silverman: Effect of Atmospheric Environment on Premature Infant, p. 581. Doctor Silverman presents a review of the knowledge concerning the atmospheric environment and the premature infant. He pays tribute to Professor Constantin P. Yaglou and to Dr. Kenneth D. B!ackfan for their systematic studies of the effects of varying atmospheric conditions on vitality and growth. He adds several experiments which he has done at the Babies Hospital, Columbia University. Of particular interest is the study using "a modification of the method of sequential analysis to evaluate the differences in survival in warm or cool incubators." This method of statistical analysis is rarely used in clinical trials but is useful in certain specific areas. The one chosen by Dr. Silverman is
Selected abstracts 275
particularly favorable and is clearly presented. The essay is recommended for its historic and current value. Schuyler G. Kohl
Vol. 59, No. 2, August, 1961. *Vest, M. F., and Grieder, H. R.: Erythrocyte Survival in the Newborn Infant, as Measured by Chromium 51 and Its Relation to the Postnatal Serum Bilirubin Level, p. 194. *David, R. R., Alexander, D. S., and Wilkins, L.: Placental Transfer of an Organic Radiopaque Medium Resulting in a Prolonged Elevation of the ProteinBound Iodine, p. 223. Vest and Grieder: Erythrocyte Survival in Newborn Infant, as Measured by Chromium and Its Relation to Postnatal Serum Bilirubin Level, p. 194. The authors undertook the present study to determine whether increased hemolysis after birth was a factor in the etiology of physiologic icterus neonatorum. Erythrocyte destruction was investigated in 33 premature infants and 6 full-term infants. The technique employed the autologous transfusion of red cells labeled with chromium 5 1 • Simultaneous determinations of the course and duration of elevated bilirubin levels were recorded. The authors postulated that, if increased hemolysis were responsible for a neonatal jaundice, they would expect that infants with short red cell survival would have a higher bilirubin concentration or a bilirubinemia of longer duration than would infants with lower rates of erythrocyte destruction. They were unable to find any such relationship. Schuyler G. Kohl David, Alexander, and Wilkins: Placental Transfer of Organic Radiopaque Medium Resulting in Prolonged Elevation of Protein-Bound Iodine, p. 223. Since 1957 it has been known that extremely high levels of serum protein-bound iodine can be observed in patients who have received iophenoxic acid (Teridax), a contrast medium for cholecystography, for as long as 18 months following the administration of the dye. The present report shows that this substance can pass the placental barrier and cause a marked and prolonged elevation of PBI of the offspring. Two children are described who had high serum PBI levels resulting from the administration of this iodinated compound to their mothers. The
No. 3, March, 1961. Stciker, D. D., Mellman, W. ]., Bongiovanni, A. M., Eberlein, W. R., and Leboeuf, G.: Turner's Syndrome in the Male, p. 321. No. 4, April, 1961. *Tank, G., and Storvick, C. A.: Dental Caries Experience of School Children in Corvallis, Oregon, After 7 Years of Fluoridation of Water, p. 528. *Silverman, W. A.: The Effect of the Atmospheric Environment on the Premature Infant, p. 581. Tank and Storvick: Dental Caries Experience of School Children in Corvallis, Oregon, After 7 Years of Fluoridation, p. 528. The authors report on their experience after changing the fluoride concentration of water from 0.1 ppm to 1.0 ppm in January, 1953. They conclude that ( 1) the dental caries rate of the permanent and primary teeth was significantly reduced by 7 years of exposure to fluoridated water; ( 2) a significant reduction was shown in the number of decayed and missing permanent teeth, decayed primary teeth, and teeth indicated for extraction; ( 3) there was a marked increase in the number of filled permanent and primary teeth after fluoridation as compared to the preftuoridation data; (4) reductions in the number of decayed, missing, and filled first permanent molars became greater with progressive increasing periods of exposure of the teeth to fluoridated water; (5) after fluoridation, more than twice as many children were free from caries experience of the permanent or primary teeth as had been before fluoriSchuyler G. Kohl dation. Silverman: Effect of Atmospheric Environment on Premature Infant, p. 581. Doctor Silverman presents a review of the knowledge concerning the atmospheric environment and the premature infant. He pays tribute to Professor Constantin P. Yaglou and to Dr. Kenneth D. B!ackfan for their systematic studies of the effects of varying atmospheric conditions on vitality and growth. He adds several experiments which he has done at the Babies Hospital, Columbia University. Of particular interest is the study using "a modification of the method of sequential analysis to evaluate the differences in survival in warm or cool incubators." This method of statistical analysis is rarely used in clinical trials but is useful in certain specific areas. The one chosen by Dr. Silverman is
Selected abstracts 275
particularly favorable and is clearly presented. The essay is recommended for its historic and current value. Schuyler G. Kohl
Vol. 59, No. 2, August, 1961. *Vest, M. F., and Grieder, H. R.: Erythrocyte Survival in the Newborn Infant, as Measured by Chromium 51 and Its Relation to the Postnatal Serum Bilirubin Level, p. 194. *David, R. R., Alexander, D. S., and Wilkins, L.: Placental Transfer of an Organic Radiopaque Medium Resulting in a Prolonged Elevation of the ProteinBound Iodine, p. 223. Vest and Grieder: Erythrocyte Survival in Newborn Infant, as Measured by Chromium and Its Relation to Postnatal Serum Bilirubin Level, p. 194. The authors undertook the present study to determine whether increased hemolysis after birth was a factor in the etiology of physiologic icterus neonatorum. Erythrocyte destruction was investigated in 33 premature infants and 6 full-term infants. The technique employed the autologous transfusion of red cells labeled with chromium 5 1 • Simultaneous determinations of the course and duration of elevated bilirubin levels were recorded. The authors postulated that, if increased hemolysis were responsible for a neonatal jaundice, they would expect that infants with short red cell survival would have a higher bilirubin concentration or a bilirubinemia of longer duration than would infants with lower rates of erythrocyte destruction. They were unable to find any such relationship. Schuyler G. Kohl David, Alexander, and Wilkins: Placental Transfer of Organic Radiopaque Medium Resulting in Prolonged Elevation of Protein-Bound Iodine, p. 223. Since 1957 it has been known that extremely high levels of serum protein-bound iodine can be observed in patients who have received iophenoxic acid (Teridax), a contrast medium for cholecystography, for as long as 18 months following the administration of the dye. The present report shows that this substance can pass the placental barrier and cause a marked and prolonged elevation of PBI of the offspring. Two children are described who had high serum PBI levels resulting from the administration of this iodinated compound to their mothers. The