EDITORIAL
Fluoride Therapy and Osteoporosis ... 1-4

ORIGINAL ARTICLES

Periodontal Disease, Oral Hygiene and Fluoride Content of Dental Deposits in Aluminum Workers
  M Borysewicz-Lewicka, M Kobylanska. Poznan, Poland ... 5-10

Measurement of Spinal Canal Body Ratio in Fluorotic Spine
  AX Kapila, Ravinder Pal Kaur, SS Jolly. Patiala, India ... 11-19

In Heavy Tea and Coffee Drinkers "Nutritional Status" of Fluoride in Relation to that of Other Mineral Elements
  J Skorkowska-Zieleniewska. Warsaw, Poland ... 20-23

Fluoride Ingestion During Pregnancy and Lactation: Morphological Effects on Maternal Rat Bone
  LJ Ream, PB Pendergrass, JN Scott. Dayton, Ohio ... 23-33

Antidotes in Experimental Fluorosis on Pigs, Morphological Studies
  W Seffner, W Teubener. Leipzig, DDR ... 33-37

Effect of High Fluoride Intake on Chicken Performance, Ovulation, Spermatogenesis and Bone Fluoride Content
  AWR Medhi, KA AI-Soudi, NAJ Al Jiboori, MK Al-Hiti. Baghdad, Iraq ... 37-43

Fluoride in the Groundwater of Selected Localities in the District of Cottbus
  KH Muller. Cottbus GDR ... 43-47

Levels of Muscle and Liver Tissue Enzymes in Channa Punctatus Bloch Exposed to NaF
  T Chitra, MM Reddy, JV Ramana Rao. Hyderabad, India ... 48-51

Comparison of Methods Used to Estimate F^– in Plants
  Z Machoy, D Samujło. Szczecin, Poland ... 51-54

Pharmacokinetic Investigations After Application of Sodium Fluoride to Chronically Exposed Persons
  G Heidelmann, J Klinger, CW Schmidt. Dresden and Heidenau, GDR ... 54-60

Ionic Variations in Tissues of Channa Punctatus Bloch on Exposure to NaF
  T Chitra, MM Reddy, JV Ramana Rao. Hyderabad, India ... 60-63

ABSTRACTS
The Effects of Renal Impairment on Fluoride Retention of Patients Hospitalized in a Low-Fluoride Community
  H Hanhijarvi. Kuopio, Finland ... 64

A Subacute Fluoride Intoxication During Treatment of Osteoporosis with Sodium Fluoride (NaF)
  RG Van Kesteren, SA Duursma, J Van Der Sluys Veer. Utrecht, The Netherlands ... 65

A Study on Fluoride as the Source of Endemic Dietary Fluorosis in Guizhou, China
  L RiBang, T JianAn, W WuYi, W LiZhen. Beijing, China ... 66

Fluorosis in a Fluoride Area in Henan Province, China
  L RiBang, T JianAn, W WuYi, W LiZhen. Beijing, China ... 66-67

Mechanism of Defluorination of Enflurane, Identification of Organic Metabolite in Rat and Man
  TR Burke, RV Branchflower, DE Lees, LR Pohl. Bethesda, Maryland ... 67

Effect of Fluoride on Tissue Manganese Levels in Mice
  M Singh. New Delhi, India ... 68

Effect of Fluoride Ion on Proliferation of Vero Cell Line Cells: Growth Acceleration by Sodium Fluoride
  A Oguro, N Koizumi, K Horn. Niigata City, Japan ... 68-69

EDITORIAL
A Clinician's Dilemma
  GL Waldbott. Warren, Michigan ... 70-71

ORIGINAL ARTICLES
Subacute Fluorosis Due to Airborne Fluoride
  GL Waldbott. Warren, Michigan ... 72-82

Neighborhood Fluorosis with Skeletal Manifestations
  CW Schmidt. Heidenau, GDR ... 83-90

Clinical Radiological Observations Among Workers of Fluoride Processing Industry
  VX Desai, BS Bhavsar, NR Mehta, KAVR Krishnamachari.
  Surat, Gujarat, and Hyderabad, India ... 90-100

Enamel Fluorosis in Human Temporary and Permanent Teeth from a High Fluoride Area Near Dresden
  MEW Pilz. Dresden. G.D.R. 101-105

Experimental Fluorosis in Rats: NaF-Induced Changes of Bone and Bone Marrow
  M Bely. Budapest, Hungary ... 106-111

Production of Fluoroacetate by Callus Tissue from Leaves of Acacia georginae
  LW Bennett, GW Miller, MH Yu, RI Lynn. Logan, Utah ... 111-117

Effect of Fluoroacetate on Glucose Synthesis in Rat Liver
  V Bobyleva-Guarriero, R Dina, P Lauriola, A Masini. Modena, Italy ... 117-128

ABSTRACTS
Fluoride, An Internally Acting Platelet Activator, Causes Phosphorylation of Platelet Phosphatidic Acid and 20K and 47K Proteins
  EH Mürer, E Siojo, JL Daniel. Philadelphia, Pennsylvania ... 129

Effect of Intraperitoneally Injected Fluoride on Plasma Calcium in Suckling and Adult Rats
  MJ Larsen, A Richards, O Fejerskov. Aarhus, Denmark ... 130

Effects of Fluoride, Calcium and Phosphate Administration on Mineralization in Rats
  MJ Larsen, O Fejerskov, SJ Jensen. Aarhus, Denmark ... 130-131

The Effect of Sodium Fluoride on Egg Production, Egg Quality, and Bone Strength of Caged Layers
  JW Merkley. Georgetown, Delaware ... 131

Metabolic Aspects of the Secretion of Stored Compounds from Blood Platelets
  EH Mürer, K Davenport, E Siojo, HJ Day. Philadelphia, Pennsylvania ... 132

Historical and Histochemical Appearance of Livers and Kidneys of Rats after Long-Term Treatment with Different Concentrations of Sodium Fluoride in Drinking Water
  AM deCamargo, J Merzel. Sao Paulo, Brazil ... 133

Effect of Sodium Fluoride on the Viability and Growth of Streptococcus Mutans
  LR Brown, SF Handier, IM Horton, JL Streckfuss, S Dreizen. Houston, Texas ... 133-134

Is the Current Reduction in Caries in our School Children Real or Imaginary?
  B Forsman. Vaxjo, Sweden ... 134-135

Effects of Fluoride on Human Enamel and Selachian Enameloid in vitro, A High-Resolution Tern and Electron Diffraction Study
  G Daculsi, LM Kerebel, B Kerebel. Nantes, France ... 135

EDITORIAL
The Mechanism of Dental Fluorosis ... 137-138

ORIGINAL ARTICLES
Gilbert's Disease and Fluoride Intake
  John Lee. Mill Valley, California ... 139-145

Interaction of Fluoroacetamide with Rat Liver Glutathione S-Transferase: Evidence for a Detoxication Role by Defluorination
  PJ Dierickx, JO DeBeer. Brussels, Belgium ... 145-161

Fluoride-induced Secretion from Human Blood Platelets
  EH Mürer, JL Daniel. Philadelphia, Pa ... 152-161

Comparative Study of Fluoride Elimination from Guinea Pig Bone after Long and Short-Term Exposure to Hydrogen Fluoride
  C Rioufol, P Bourbon, L Vranken. Toulouse, France . 162-168

Scanning Electron Microscopy of the Rat Femur After Fluoride Ingestion
  LJ Ream, Dayton, Ohio ... 169-174

Effects of Airborne Fluoride on the Fluoride Content of Rice and Vegetables
  S Sakurai, K Itai, and H Tsumado. Morioka, Japan ... 175-180

Fluoride as an Activator of Enzymatic Systems
  LS Strochkova and AA Zhavoronkov. Moscow, USSR ... 181-186

ABSTRACTS
Effects of Fluoride on Copper, Manganese and Zinc in Bone and Kidney
  M Singh, and KC Kanwar. Chandigarh, India ... 187

Multiple Bony Fissures During Treatment of Osteoporosis with NaF
  T Glimet, K. Kuntz, MC de Vernejoul, A Rickewaert. Paris, France ... 188

Osteoporosis Therapy (A Review)
  CK Whitmore, JA Haggerty. Omaha, Nebraska ... 189-190

Role of Fluoride in Formation of Urinary Calculi: Studies in Rats
  A Anasuya, Hyderabad, India ... 190-191

Ionic Plasma Fluoride Concentrations Related to Some Diseases in Patients from a Fluoridated Community
  H Hanhijarvi, I Penttila, and A Hakulinen. Kuopio, Finland ... 192

Human Vertebral Bone: Relation of Strength, Porosity and Mineralization to Fluoride Content
  ID Stein and G Granik. Newark, NJ ... 193

FLUORIDE BRIEFS ... 151, 174

EDITORIAL
Chronic Fluoride Intoxication ... 195-197

ORIGINAL ARTICLES
Fluorosis and Finger Ball Dermatoglyphics – A Comparative Study
  KL Batish, SS Sidhu, SS Makhni, MK Batish, and DP Bhatnagar. Punjab, India ... 198-208

Light Microscopy and Scanning Electron Microscopy of Bony Tissue in Food-borne Endemic Skeletal Fluorosis
  Zhan Chongwan, Huo Daijei, Wang Enchou. Guizhou, China ... 209-213

Serum Biochemical Effects of Fluoride in Sheep in the Darmous Area
  M Kessabi, B Boudarine, JP Braun, D Lamnaouer
  Rabat, Morocco, and Toulouse, France ... 214-219

Effects of Simultaneous Action of Sulfur Dioxide and Hydrogen Fluoride on Stomatal Movement in Zeamays and Pelargonium hortorum
  J Bronte, C Bronte, L deCormis. Castet, France ... 220-228

F^– Concentration in the Air of Various Communities in Japan
  K Itai, S Sakurai, H Tsunoda. Morioka, Japan ... 229-234

Effects of Fluoride Pollution on Corn Plants Through Phosphatic Fertilizer Dust Fallout
  PC Seth, S Sahu, GS Pandey. Raipur, India ... 235-242

Effect of NaF and Mercuric Chloride on the Unit Oxygen Consumption of Channa Punctatus, (Bloch)
  T Chitra, N Parwathy, JV Ramana Rao. Hyderabad, India ... 243-246

Fluoride Retention and Leach Possibilities in Argentine Salt-Affected Soils
  RS Lavado, NB Reinaudi, AA Parodi. LaPlata, Argentina ... 247-251

ABSTRACTS
Kinetic Characteristics and Effects of Sodium Fluoride on AMP-Aminohydrolase from Rat Liver Hyaloplasm
  NB Rymar'-Shcherbina, VN Okuner. Kiev, Ukrainian SSR ... 252

The Effects of Fluoridated Water on Rat Urine and Tissue cAMP Levels
  HS Kleiner, and DW Allmann. Indianapolis, Indiana ... 253

Deuterated Methoxyflurane Anesthesia and Renal Function in Fischer 344 Rats
  JM Baden, SA Rice, RI Mazze. Palo Alto, California ... 253-254

Renal Clearance of Fluoride in a Steady State Condition in Man: Influence of Urinary Flow and pH Changes by Diet
  J Ekstrand, CJ Spak, M Ehrnebo. Uppsala, Sweden ... 254-255

Mécanisme Enzymatique de l'Otospongiose, Action du NaF (Enzymatic Mechanism of Otosclerosis, Action of NaF)
  JR Causse, J Uriel, J Berges, P Bretlau, JB Causse. Paris, France ... 255-256

Accidental Ingestion of NaF Tablets by Children: Report of a Poison Control Center and One Case
  HG Eichler, K Lenz, M Fuhrmann, K Hruby. Vienna, Austria ... 256-258

Milk Production of Cows Exposed to Industrial Fluoride Pollution
  GA Maylin, L Krook. Ithaca, New York ... 258

Investigation of a Dual Filter Sampling Method for Gaseous and Particulate Fluoride
  W Einfeld, SW Horstman. Seattle, Washington ... 258-259

A Field Study of the Validity of Static Paper Sampling in Fluoride Pollution Surveys
  J Alary, P Bourbon, C Balsa, J Bonte, C Bonte. Morlaas, France ... 259

Authors Index ... 260-261
Subject Index ... 262-268