Dean of the Faculty: Professor Sir Arthur Amies Associate Dean: Professor H. F. Atkinson
STAFF
DEPARTMENT OF ORAL MEDICINE A N D ORAL SURGERY Professor SIR ARTHUR AMIES, C.M.G., D.D.Sc, D.L.O, F.R.C.S. (Edin.), F.R.A.C.S,
F.D.S.R.C.S. (Eng. Edin.), F.R.S.E, F.A.C.D.
Senior Lecturer in Oral Surgery (part-time), VERNON THOMAS SEALEY, D.D.Sc.
Senior Lecturer in Oral Surgery, HUGH GRAHAM GILMORE, M.D.Sc.
Research Workers (Part-time):
JOHN DAW KINS, M.D.Sc.
PAUL P1NCUS, D.D.Sc, F.D.S.R.C.S.
PHILIP RICHARD NEVILLE SUTTON, D.D.Sc.
DEPARTMENT OF CONSERVATIVE DENTISTRY Professor JULIEN REICH, M . B , B.S, M.D.Sc.
Senior Lecturer, HAROLD RAMSAY DOWN, M.D.Sc.
Lecturers:
MELDRUM JAMES ARTHUR CAMPBELL, M.D.Sc.
HAROLD A T H O L McINTOSH, B.D.Sc.
PAMELA PATRICIA O'FARRELL, B.D.Sc.
Senior Demonstrator, ASJA STR AG] S, B.D.Sc.
DEPARTMENT OF DENTAL PROSTHETICS
Professor HENRY FORMAN ATKINSON, M.B.E, M.Sc. (Mane), D.D.S. (Mane), M.D.Sc, F.D.S.R.C.S. (Edin.)
Reader, ROY WILFRED SHEPHERD, D.D.Sc.
Senior Lecturer, CLIVE GEOFFREY DENNIS, M.D.Sc.
Lecturers:
HARRY I A N GILL, M.D.Sc. (on leave) JOHN K E N N E T H HARCOURT, M.D.Sc.
W I L L I A M JAMES RALPH, B.D.Sc.
Senior Demonstrators:
ROGER K1NGSLEY H A L L , B.D.Sc.
N A T A L I E NEIBURGS Research Workers (Part-time):
A L A N ARCHIE GRANT, M.D.Sc.
K E N N E T H JOHNSON, M.D.Sc.
HECTOR JOSIAH ORAMS, M.D.Sc.
CONSERVATIVE DENTISTRY Head of Department: Professor J. Reich
(1) The Use of a Combination of Neomycin, Bacitracin and Polymyxin in Endodontia
Workers: S. D. Rubbo, J. Reich and (Mrs) Shirley Dixson The investigation, commenced in 1957. established a formulation of antibiotics for use in Endodontic therapy. This has been published in Oral Surgerv, Oral Medicine arid Oral Pathology 11: 878 (1958).
These antibiotics are now undergoing clinical trial at the Dental School.
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D E N T A L M E D I C I N E A N D SURGERY 69
(2) Aetiological Factors in Periodontal Diseases Workers: J. Reich and M . J. A. Campbell This project is just commencing.
(3) The Effect of Manipulative Variables on Amalgam Restorations Worker: D. J. Cock
D. J. Cock received an appointment in the Dental School of the University of Western Australia and is continuing this study, which he commenced in 1956, in that University.
(4) A Clinical Evaluation and Cephalometric Appraisal of Bite Plate Treatment of Closed Bite Cases
Worker: R. C. Case
This work has now been completed and thc results are being correlated and presented in thesis form.
(5) An Investigation into the Morphology, Incidence, and Distribution of the Enamel Lamellae and Their Relationship to the Carious Process
Worker: M. J. A. Campbell
Serial hard ground sections of teeth have been prepared and examined for evidence of enamel lamellae. As at this stage it is diffi- cult to differentiate between lamellae and crack formation, the sections arc then decalcified. During thc decalcification process the sections have been examined microscopically and note made of thc position, number and extent of thc lamellae which are present. Whole teeth have also been slowly decalcified, the process taking 8-10 weeks, so that thc organic components of the enamel arc retained in their original position. Following decalcification the teeth have been blocked, sectioned and examined microscopically. The work is still in progress.
DENTAL MEDICINE AND SURGERY Head oj Department: Professor Sir Arthur Amies (6) An Investigation into Bone Healing Following Apicectomy
Worker: J. Dawkins
The aim of this project was to investigate bone healing in thc cavity following the operation of apicectomy in the anterior part of the human maxilla. Following a clinical and radiological study on human patients, an experimental investigation was carried out on selected animals.
Results showed that thc rate of healing on bone following apicectomy in the human maxilla varies with rhe substance inserted into thc
70 F A C U L T Y OF D E N T A L S C I E N C E
cavity in thc bone. This work, which was carried over from the previous year, has been completed and a thesis has been submitted for the Degree of Doctor of Dental Science.
(7) The Aetiology of Dental Caries. The Physiology of Odontoblasts Worker: P. Pincus.
It is now clear that the odontoblasts are responsible for active passage through dentine and sound enamel, though this has only been detected at ionic level so far. As yet, actual quantities passing have not been investigated. Thc aims of this project are:
(a) As phosphate passes, calcium is next to be tested (b) Inquiry into effects of temperature on rate of passage (c) Minor improvements in technique
(d) Some evidence has been obtained for the presence of a mem- brane in the pulp. This is a point of some interest, and a new method of examination is under test.
Results:
(a) Thc fact of active passage of phosphate has been confirmed (b) Lowering of temperature slows rate of passage
(c) A membrane in the pulp has been demonstrated by microscopy.
Other methods of demonstration are in hand, but results are incomplete.
(8) Study of the Fracture of Roots of Teeth During Exodontia Worker: V. T. Sealcy
This work has been continued from thc previous year. Further clinical data is being collected.
(9) A Re-evaluation of Fluoridation Trials
Workers: A. B. P. Amies and P. R. N. Sutton
The aim of this project was to investigate original reports f r o m fluoridation trials to determine whether statements made in them are justified by the numerical data published. As a result of this study, it is clear that there is considerable doubt regarding the claims made for thc efficacy of artificial fluoridation of water supplies, for the studies which were set up to test this matter are unreliable, as they contain many errors and misstatements, and omit relevant data.
This project was continued from the previous year, but is now com- pleted. A monograph is awaiting publication.
(10) The study of the Process of Healing following Tooth Extraction in Relation to an Abnormal Blood Picture Produced by Drugs Worker: H. C. Gilmore
Experimental methods are being elaborated.
D E N T A L P R O S T H E T I C S 71
DENTAL PROSTHETICS
Head of Department: Professor H. F. Atkinson
(11) A Study of the Porosity and Volume Changes Occurring in Methyl Methacrylate on Polymerisation with Particular Reference to Their Clinical Application
Worker: C. G. Dennis
Continued use of the technique of polymerisation under controlled pressure and correlation of previous results has enabled porosity to be related to processing temperatures over thc range 6o°-ioo°C. The rate of evolution of heat was investigated and related to the initial temperatures; at temperature between 6i°C and 66°C this was greatest with the peak temperature rising by some 70°C. Volume change during polymerisation was found to be of the order of 6-5 pet- cent. A thesis has been completed and submitted for the Degree of Doctor of Dental Science. This work is still in progress and has been continued from the previous year.
(12) The Effects of Pressure on the Polymerisation of Methyl Methacrylate Monomer and Mixtures of the Monomer and Polymer
Worker: IT. F. Atkinson
Work on this problem has .been delayed somewhat owing to thc late arrival of equipment.
Experiments have been undertaken to examine the degree of cloudi- ness evident at low pressure by measurement of light transmission.
A n apparatus has been set up for the production of specimens under closely controlled conditions of temperature and pressure, and reproducible results are being obtained.
(13) A Clinical Investigation into the Resorption of the Alveolar Process after Tooth Removal and Alveolectomy
Worker: K. Johnson
During thc year further clinical material has been collected and analysed. Refinements have been made in thc radiographic technique together with additions to thc ccphalostat. A method of assessing bone resorption in thc mandible by direct measurement is being examined and this work has been continued from thc previous year and is still in progress.
(14) A Study of Mandibular Movement Worker: R. W. Shepherd
The work is continued from the previous year and consists in the
72 F A C U L T Y OF D E N T A L S C I E N C E
elucidation of different problems together with a widening of the scope of the work.
The relationship of mandibular movement to abnormal conditions of the temporomandibular joint has been studied in greater detail.
Observations have been made of the free gliding movements of the mandible, and those movements occurring during opening, closing and deglutition.
Preliminary investigations are continuing on the possibility of using strain gauges and an electromyographic record of thc masticatory cycle in combination with the pattern produced by cine photography.
Less has been completed this year owing to absence on study leave for six months during which time contact was made with workers investigating similar problems both in thc United Kingdom and Scandinavian countries. The work is still in progress.
(15) Methods of Producing Sections of Hard Calcified Tissues for Histological Purposes
Worker: H. F. A tkinson
Various modifications to the original high speed equipment have been made during the last year. Thesc have included a guide for the cutting wheel and a dial gauge for section thickness. Exploratory experiments have been undertaken in connection with thc semi automatic polishing of sections to a predetermined thickness using different types of laps. This work was •continued from the previous year and is still in progress.
(16) A Microradiographic Study of the Structure of Human Enamel and Dentine
Worker: J. K. Harcourt
Work this year has been of a preliminary nature, perfecting tech- niques for specimen preparation and experimenting with different films and developers. The Philips C.M.R. unit has also been operated on varying K V and ma ratings, thus giving differing exposures. A number of interesting microradiographs of dentine have been made and thesc will be followed up more extensively in the coming year.
Microradiographs of enamel have also been made but it has not yet been possible to demonstrate detailed enamel structure. The work was continued from the previous year and is still in progress.
(17) An Investigation of Nasmyth's Membrane with Particular Reference to the Initial Carious Attack
Worker: H. J. Orams
This work has been continued from thc previous year and is still in progress. Histological studies have been extended and photographs
D E N T A L P R O S T H E T I C S 73
obtained showing the attachment of the membrane to carious areas of enamel and dentine.
Demineralised sections prepared at approximately the neutral point show large areas of enamel remaining under carious lesions. From these it appears as if the membrane may bc physically continuous with thc altered enamel. This work was continued from the previous year and is still in progress.
(18) An Investigation into the Causes of the Increase in Vertical Dimension which occurs during the Fabrication of Full Dentures Worker: A. A. Grant
Experiments in the effect of applied pressure on invested teeth have continued and a special apparatus has been developed to facili- tate the investigation of this effect on individual teeth. Preliminary work on thc change in relationship of the upper and lower models when attached to thc articulator has also been done. The work is still in progress and has been continued from the previous year.
(19) A Clinical Investigation into the Prosthetic Treatment of the Cleft Palate Patient
Worker: C. G. Dennis
This work has commenced with the collection of records in the form of case histories, study casts, radiographs and photographs of patients with both operated and unoperatcd clefts. I t is anticipated that this will become a long term clinical study and will embrace growth and speech as affected by prosthetic appliances of various types.
(20) Area and Load Relationship of Peridental Membrane Worker: (Mrs) Natalie Neibnrgs
Thc purpose of thc investigation is to determine the area of thc peridental membrane and to relate this to thc load applied to the tooth. A method of determining root area is being investigated and has been applied to a scries of teeth. Preliminary results indicate that the ratio of thc area of the peridental membrane to the cross section of thc tooth at the gum level is fairly constant and appears to bc independent of the type of tooth. The work was commenced this year and is still in progress.
PUBLISHED WORK
i. AMIES, SIK ARTHUR — Mark Rosenberg Memorial Oration. Aust.
Dent. }. 4: 1-7 (1959)
1. ATKINSON, H . F.— An Examination of a Fundamental Problem.
Aust. Dent. J. 3; 73-5 (.958)
3. ATKINSON, H . F. and DENNIS, C. G.— Experiments in the Poly-
74 FACULTY OF D E N T A L SCIENCE
merisation of Acrylic Resin Denture Base Material. Aust. Dent.
J. 4: 13-20 (1959)
4. ATKINSON, H . F., G I L L , H . I . and SHEPHERD, R. W.— Some Notes on Alginate Impression Material. Aust. Dent. J. 3: 184-j (1958) 5. ATKINSON, H . F. and HARCOURT, J. K.— The Polymerisation of Self-curing Acrvlics under A i r Pressure. Aust. Dent. J. 3: 183 6. DAWKINS, JOHN — A n Apparatus for Obtaining Serial Roentgeno-
grams. Aust. Dent. ] . 3: 283-7 (1958)
7. Two Transverse Roots. Aust. Dent. J. 4: 27-30 (1959) 8. DOCKING, A. R.— Co-Report. Specification and Standardization.
Int. Dent. J., Lond. 8: 240-2 (1958)
9. FLEMING, W. E.— Ulceration of the Oral Mucosa. Aust. Dent. J.
3: 363-8 (1958)
10. PINCO'S, P.— Passage of Phosphate Through the Human Tooth.
Nature, Lond. 181: 844-5 ('958)
11. RUBBO, S. D., REICH, J. and DIXSON, SHIRLEY — The Use of a
Combination of Neomycin, Bacitracin and Polymyxin in Endo- dontia. Oral Surg. 11: 878-96 (1958)
12. WORNER, H . K. and DOCKING, A. R.— Dental Materials in thc Tropics. Aust. Dent. J. 3: 215-29 (1958)
A C C O U N T I N G
Head of Department: Professor Louis Goldberg STAFF
Full-time Academic Staff
Professor of Accounting, LOUIS GOLDBERG, B . A , M.Com, F.A.S.A.
Senior Lecturers:
W I L L I A M JAMES McKELVIE STEWART, B . A , B.Com, A.A.S.A.
JEAN ST. GEORGE KERR, M.S. (Columbia), B.Com.. A.A.S.A.
ROBERT MACDONALD KAY, B.Com. (N.Z), F.R.A.N.Z.
Senior Lecturers in Commercial Lain:
ROBERT ALBERT SAMEK, M . A , M . L i t t , LL.B. (Cantab.), M.Com.
LOUIS CAREW VOUMARD, B . A , L L . B , A.A.S.A.
Lecturer, BASIL JOHN McMAHON, B.Com, A.A.S.A.
Senior Tutor, WESLEY GEORGE COOK, B.Com.
(1) Accounting Theory Worker: L. Goldberg
A survey of the field of accounting was made and a new classifica- tion into accounting theory, accounting doctrine and accounting practice was proposed. The result of thc survey was given in the G. L . Wood Memorial Lecture, 1958, under the title 'The Province of Accounting'.
(2) Assumptions Relating to Depreciation Worker: L. Goldberg
A crirical analysis was made of arguments propounded in relation to the charging of depreciation on long-term assets. Thc results were given in a research lecture and published in The Australian Accountant.
(3) Responsibility Accounting Worker: W. f . M. Stewart
This project, reported last year, was completed and the results embodied in a Cost Bulletin of thc Australasian Institute of Cost Accountants.
(4) The Application of Electronic Data Processing to Accounting Procedures
Worker: B. J. McMahon
This project, commenced during 1958, is an investigation into thc practicability of using electronic computers in everyday accounting procedures under local conditions. I t is at present in the exploratory stage.
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76 F A C U L T Y OF E C O N O M I C S A N D C O M M E R C E
(5) The Analysis of Accounting Reports as an Audit Technique Worker: B. J. McMahon
Data relating to accounting reports, particularly of municipal authorities, have been collected and arc in process of analysis.
(6) The Law Relating to Unit Trusts Workers: R. A. Samek and H. A. J. Ford
This study of the law relating to unit trusts, commenced last year, is proceeding.
(7) The Origin of Joint-Stock Companies Worker: R. A. Samek
A n enquiry into the sources of the joint-stock company. The early historical aspect has been covered and further work is in progress.
PUBLISHED WORK Book
1. GOLDBERG, L. and HILL, V. R.— Elements oj Accounting. Melb.
Univ. Press, (and cd., revised) 1958 (300 pp.) Articles
2. GOLDBERG, L.— Thc Influence of Economic Forces on Accounting.
Proceedings o j Convention, Australian Society oj Accountants, Melbourne, 1958, pp. 245-57
3. GOLDBERG, L.— Assumptions in Discussions on Depreciation. Aust.
Accountant 29: 19-31 (1959)
4. GOLDBERG, L . (Editor) — Current Problems Discussed in Overseas Journals. Aust. Accountant 28: 97-101; 346-8; 396-8; 442-5; 524-7;
587-90; 654-7 (1958). 29: 39-42; 108-10 (1959)
5. GOLDBERG, L.— Balance Sheet Analysis for Credit Purposes. Vict.
Crcdilman 14: 6-9 (1958)
6. STEWART1, W. J.— Responsibility Accounting. Australasian Insti- tute of Cost Accountants, Cost Bulletin 4: 16-30 (1958)