EDITORIAL AND ANNOUNCEMENTS

IN MEMORIAM: PHILIP R N SUTTON
  Mark Diesendorf, Australia ... 123
  Editorial ... 124
XXIst Conference of ISFR ... 124

RESEARCH REPORTS
MICRONUCLEUS AND SISTER CHROMATID EXCHANGE FREQUENCY IN ENDEMIC FLUOROSIS
  D Q Wu and Y Fu, China ... 125-127

INFLUENCE OF FLUORIDE ON CONTENTS OF TESTOSTERONE AND CHOLESTEROL IN RAT
  Z L Zhao and N P Wu, China ... 128-130

STUDIES ON ALLEVIATION OF INDUSTRIAL FLUOROSIS IN BAOTOU GOATS
  J D Wang and J X Li, China ... 131-134

EFFECT OF FLUORIDE IN DRINKING WATER ON THE MINERAL COMPOSITION OF VARIOUS AREAS OF RAT MOLAR DENTIN
  S Kortelainen, Finland ... 135-145

REVIEWS
INVESTIGATION OF INORGANIC FLUORIDE, AND ITS EFFECT ON THE OCCURRENCE OF DENTAL CARIES AND DENTAL FLUOROSIS IN CANADA - FINAL REPORT (by Health Canada)
  Reviewed by R G Foulkes, Canada ... 146-148

ABSTRACTS
On non-skeletal effects:
SISTER-CHROMATID EXCHANGES IN LYMPHOCYTES OF WORKERS AT A PHOSPHATE FERTILIZER FACTORY
  Z Q Meng, H Q Meng and
  X L Cao, China ... 149

SISTER-CHROMATID EXCHANGES AFTER EXPOSURE TO METAL-CONTAINING EMISSIONS
  K Sivikova and J Dianovsky, Slovakia ... 149

CHROMOSOME ABERRATIONS IN CULTURED RAT BONE MARROW CELLS TREATED WITH INORGANIC FLUORIDES
  A M Khalil, Jordan ... 150

REVERSIBLE EFFECTS OF SODIUM FLUORIDE INGESTION ON SPERMATOZOA OF THE RAT
  M V Narayana and N J Chinoy, India ... 150

EFFECTS OF CHRONIC FLUORIDE TOXICITY ON THE MORPHOLOGY OF DUCTUS EPIDIDYMIS AND THE MATURATION OF SPERMATOZOA OF RABBIT
  A Kumar and A K Susheela, India ... 151

NEUROTOXICITY OF SODIUM FLUORIDE IN RATS
  P J Mullenix, P K Denbesten, A Schunior
  and W J Kernan, USA ... 151-152

CHANGES IN THE PLASMA ELECTROLYTES AND METABOLITES OF THE RAT FOLLOWING ACUTE EXPOSURE TO SODIUM FLUORIDE AND STRONTIUM CHLORIDE
  J Appleton, England ... 152

COMPARATIVE STUDY OF THE EFFECT OF SODIUM FLUORIDE AND SODIUM MONOFLUOROPHOSPHATE ON GLUCOSE HOMEOSTASIS IN THE RAT
  A Rigalli, R Alloatti, I Menoyo and R C Puche, Argentina ... 152-153

INTAKE AND METABOLISM OF FLUORIDE
  G M Whitford, USA ... 153

URINARY FLUORIDE EXCRETION IN CHILDREN WITH LOW FLUORIDE INTAKE OR CONSUMING FLUORIDATED SALT
  T M Marthaler, M Steiner, G Menghini and P De Crousaz, Switzerland 154

URINARY FLUORIDE EXCRETION IN JAMAICA IN RELATION TO FLUORIDATED SALT
  R A Warpeha and T M Marthaler, Jamaica ... 154

On effects on bone:
THE EFFECT OF FLUORIDATED DRINKING WATER ON AXIAL BONE MINERAL DENSITY - A POPULATION-BASED STUDY
  H Kroger, E Alhava, R Honkanen et al, Finland ... 155

EVIDENCE OF FLUORIDE-INDUCED EFFECTS ON THE CALCANEUS BY MEASUREMENTS OF BROADBAND ULTRASOUND ATTENUATION (BUA)
  A Resch, F Pietschmann, P Bernecker et al, Austria ... 155

INTERACTIVE EFFECTS OF FLUORIDE AND ALUMINUM UPTAKE AND ACCUMULATION IN BONES OF RABBITS ADMINISTERED BOTH AGENTS IN THEIR DRINKING WATER
  H W Ahn, B Fulton, D Moxon and E H Jeffery, USA ... 156

BONE MINERALIZATION AND HISTOMORPHOMETRY IN BIOPSIES OF OSTEOPOROTIC PATIENTS TREATED WITH FLUORIDE
  M D Grynpas, D P Holmyard and K P H Pritzker, Canada ... 156

MARKED DECREASE IN TRABECULAR BONE QUALITY AFTER FIVE YEARS OF SODIUM FLUORIDE THERAPY - ASSESSED BY BIOMECHANICAL TESTING OF ILIAC CREST BONE BIOPSIES IN OSTEOPOROTIC PATIENTS
  C H Søgaard, L Moselkilde, A Richards and L Moselkilde, Denmark ... 157

SODIUM FLUORIDE DOES NOT BUILD BONE IN AGED OVARIECTOMIZED RATS
  P T Cheng, L Huang and N Low, Canada ... 157-158

EFFECT OF AGING ON ANIMAL RESPONSE TO CHRONIC FLUORIDE EXPOSURE
  A J Dunipace, E J Brizendine, W Zhang et al, USA ... 158

MANDIBULAR BONE FLUORIDE ACCUMULATION IN WILD RED DEER (CERVUS ELAPHUS L) OF KNOWN AGE
  U Kierdorf, H Kierdorf, M Erdelen and Z Machoy, Denmark ... 158-159

PHENYTOIN AND FLUORIDE ACT IN CONCERT TO STIMULATE BONE FORMATION AND TO INCREASE BONE VOLUME IN ADULT MALE RATS
  T Ohta, J E Wergedal, T Matsuyama et al, USA ... 159

COMPARISON OF ALENDRONATE AND SODIUM FLUORIDE EFFECTS ON CANCELLOUS AND CORTICAL BONE IN MINIPIGS A ONE-YEAR STUDY
  M H Lafage, R Balena, M A Battle et al, USA ... 160

IN VIVO EXPOSURE TO SODIUM FLUORIDE DOES NOT MODIFY THE YIELD OF VIRAL TUMOUR-INDUCED PERIOSTEAL BONE NOR OF HETEROTOPIC BONE INDUCED BY HUMAN TUMOUR KB CELLS IN MICE
  P K Wlodarski, K H Wlodarski, K Galus et al, Poland ... 160

On effects on teeth:
DEMOGRAPHIC AND SOCIAL VARIATION IN THE PREVALENCE OF DENTAL ENAMEL OPACITIES IN NORTH WALES
  R P Ellwood and D M O’Mullane, Ireland ... 161

FLUOROSIS: FOCUS ON CHEMICAL AND BIOCHEMICAL ASPECTS
  T Aoba, Japan ... 161

DENTAL FLUOROSIS: ITS USE AS A BIOMARKER
  P K Den Besten, USA ... 162

FLUORIDE-INDUCED EARLY TEETH WEARING IN ARGENTINIAN CATTLE
  T A Lopez, M R Busetti, M C Fort and D O Bedotti, Argentina ... 162

INFLUENCE OF EXPOSURE TO VARIOUS FLUORIDE TECHNOLOGIES ON THE PREVALENCE OF DENTAL FLUOROSIS
  D C Clark, H J Hann, M F Williamson and J Berkowitz, Canada ... 163

STRATEGIES FOR IMPROVING THE ASSESSMENT OF DENTAL FLUOROSIS: FOCUS ON OPTICAL TECHNIQUES
  B Angmar-Månsson, E de Josselin-de Jong,
  F Sundström and J J ten Bosch, Sweden ... 163

ALKALI-SOLUBLE AND INSOLUBLE FLUORIDE IN ERUPTED AND UNERUPTED HUMAN ENAMEL FROM A HIGH FLUORIDE AREA WITH A LOW FLUOROSIS SCORE
  S R Grobler, J F van Zyl, I Stander and T J V W Kotze, South Africa ... 164

FLUORIDE PROFILES IN DIFFERENT SURFACES OF HUMAN PERMANENT MOLAR ENAMELS FROM A NATURALLY FLUORIDATED AND A NON-FLUORIDATED AREA
  J Li, H Nakagaki, S Tsuboi et al, Japan ... 164

TIMING OF ERUPTION OF PERMANENT TEETH: STANDARD FINNISH PATIENT DOCUMENTS
  J I Virtanen, R S Bloigu and M A Larmas, Finland ... 165

FLUORIDE DISTRIBUTION OF RAT MOLAR CEMENTUM IN RELATION TO AGE AND FLUORIDE LEVELS IN THE DRINKING WATER
  K Kondo, H Nakagaki, K Kato et al, Japan ... 165

BIOMINERALIZATION DURING EARLY STAGES OF THE DEVELOPING TOOTH IN VITRO WITH SPECIAL REFERENCE TO SECRETORY STAGE OF AMELOGENESIS
  J H M Woltgens, D M Lyaruu, A L J J Bronckers et al, Netherlands ... 166

FLUOROSIS IN A WILD COTTON RAT (SIGMODON HISPIDUS) POPULATION INHABITING A PETROCHEMICAL WASTE SITE
  M G Paranjpe, A M S Chandra, C W Qualls et al, USA ... 167

FORMATION AND STRUCTURE OF DENTINE IN THE RAT INCISOR AFTER CHRONIC EXPOSURE TO SODIUM FLUORIDE
  J Appleton, England ... 167

THE INFLUENCE OF FLUORIDE ON THE ADSORPTION OF PROTEOGLYCANS AND GLYCOSAMINOGLGCANS TO HYDROXYAPATITE
  R Hall, G Embery, R Waddington and A Gilmour, Wales ... 168

THE AVERAGE DAILY DOSE OF FLUORIDE: A MODEL BASED ON FLUID CONSUMPTION
  J D Shulman, J A Lalumandier and J D Grabenstein, USA ... 168

DENTAL CARIES EXPERIENCE AND DEFECTS OF DENTAL ENAMEL AMONG 12-YEAR-OLD CHILDREN IN NORTH LONDON, EDINBURGH, GLASGOW AND DUBLIN
  M C Downer, A S Blinkhorn, R D Holt et al, England ... 169

DIETARY INGESTION OF FLUORIDE AND CARIES PREVALENCE IN PRESCHOOL AND SCHOOL CHILDREN IN CITIES WITH DIFFERENT FLUORIDE CONTENT IN THE DRINKING WATER AND DIET
  P Cisternas, S Guerrero, A Morales and R Uauy, Chile ... 169

STUDIES ON THE CARIOSTATIC MECHANISMS OF FLUORIDE
  R P Shellis and R M Duckworth, England ... 170

THE RELATIVE CONTRIBUTION OF DENTAL SERVICES TO THE HANGES AND GEOGRAPHICAL VARIATIONS IN CARIES STATUS OF 5- AND 12-YEAR-OLD CHILDREN IN ENGLAND AND WALES IN THE 1980S
  P Nadanovsky and A Sheiham, England ... 170

THE DIFFUSION AND ENZYMIC HYDROLYSIS OF MONOFLUOROPHOSPHATE IN DENTAL PLAQUE
  E I F Pearce and G H Dibdin, New Zealand ... 171

STOICHIOMETRY OF FLUORIDE RELEASE FROM FLUORHYDROXYAPATITE DURING ACID DISSOLUTION
  E I F Pearce, N Guhachowdhury, Y Iwami and T W Cutress, New Zealand ... 171

ANTICARIES EFFECT OF DIFFERENT AMINE FLUORIDE CONCENTRATIONS IN SCHOOLCHILDREN
  K Rosingrget and I Lincir, Croatia ... 172

UPTAKE AND RELEASE OF FLUORIDE FROM BIRCH AND LIME TOOTHPICKS
  H Kashani, D Birkhed and L G Petersson, Sweden ... 172

THE PREVALENCE AND RISK FACTORS OF FLUOROSIS AMONG PATIENTS IN A PEDIATRIC DENTAL PRACTICE
  J A Lalumandier and R G Rozier, USA ... 173

LIST OF OTHER ARTICLES IN DENTAL LITERATURE ... 173-174