Janet Fuss
The University of Adelaide, Dental School, Faculty Member
Research Interests: Nursing, Dentistry, Education Policy, Medicine, Older Adults, and 15 moreHumans, Oral health, Nursing Homes, Nursing Home, Clinical Sciences, Questionnaires, Longitudinal Studies, Public health systems and services research, Longitudinal Study, Dental Care, Chi Square Distribution, Dentists, Older Adult, Service Provider, and Logistic Models
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Research Interests: Dentistry, Medicine, Capillaries, Animals, Male, and 6 moreVascular endothelium, Rats, Gingiva, Periodontal, Arterioles, and Molar
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In view of the continuing interest in the use of glass ionomer cements as a dentine substitute or base under composite resins, further investigations were carried out on the effects of the length of time of etching of the surface of the... more
In view of the continuing interest in the use of glass ionomer cements as a dentine substitute or base under composite resins, further investigations were carried out on the effects of the length of time of etching of the surface of the cement prior to the placement of the resin. A number of cements are available on the Australian market which are advocated for use in this technique. Each of them was subjected to etching for periods of 15, 30, 45, or 60 seconds and then stored in water for one week. Examination under a dissecting microscope and a scanning electron microscope revealed some variation in results between the different cements.It would appear that not all those materials presently marketed for this purpose are entirely suitable. Whilst 15 seconds is the preferred time for most cements, some require times up to 60 seconds to achieve the best result. Also, some of the cements showed signs of cracking, expansion and distortion after they had been stored in water for one week to allow for maturation before being prepared for viewing under the SEM. It is suggested that this group of cements is not suitable for the ‘sandwich’ technique.
Research Interests: Materials Science, Dentistry, Water, Scanning Electron Microscopy, Medicine, and 15 morePorosity, Cement, Desiccation, Composite Material, Clinical Sciences, Etching, Particle Size, Scanning Electron Microscope, Public health systems and services research, Time Factors, Surface Properties, Dental Cement, Materials Testing, Glass Ionomer Cement, and Glass ionomer cements
Research Interests: Dentistry, Incidence Geometry, Medicine, Activities of Daily Living, Humans, and 15 moreNursing Homes, Female, Dental Caries, Male, Mental Disorders, Gerodontology, Health Status, Nursing Home, Aged, Middle Aged, Analysis of Variance, Dental Plaque Index, Chi Square Distribution, Cognition disorders, and DMF index
Research Interests: Microbiology, Biofilms, Biology, Proteomics, Medicine, and 15 moreBiological Sciences, Enzymes, Humans, Biofilm, Bacteria, Glucans, Saliva, Periodontal Diseases, Two dimensional Gel Electrophoresis, Proteome, Alkaline PH, Alkalies, real time polymerase chain reaction, Medical and Health Sciences, and GroEl
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Thesis (MSc) -- University of Adelaide, Dept. of Anatomy and Histology, 198
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BACKGROUND Wellbeing may be lower among dentistry professionals than other health professionals, and differ by personal, professional, and sociodemographic factors. Few studies considered dentistry academics who have different work roles... more
BACKGROUND Wellbeing may be lower among dentistry professionals than other health professionals, and differ by personal, professional, and sociodemographic factors. Few studies considered dentistry academics who have different work roles and functions than clinicians. This exploratory study focused on wellbeing among dentistry academics and aimed to explore associations with perfectionism, professional factors and sociodemographics. METHOD An online survey was conducted with academic staff in Dentistry and Oral Health departments of nine Universities in Australia and New Zealand. Wellbeing was assessed using the 22-item Psychological General Well-Being Index, with a maximum score of 110 indicating good wellbeing. Perfectionism was assessed using the 8-item Short Almost Perfect Scale, with a maximum score of 56, and a higher score indicating perfectionism. 20 items were used to assess professional and 7 items assessed sociodemographic factors. Associations were explored using correlation and multiple linear regression. RESULTS There was no significant bivariate association between perfectionism and wellbeing. Multiple linear regression indicated a significant association between hours of undergraduate teaching and psychological wellbeing, after adjustment for age, gender, income, and overall health. CONCLUSION This exploratory study demonstrated poor wellbeing among dentistry academics, particularly in those teaching undergraduate students for more than six hours/week.
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OBJECTIVES The Adelaide Dental Study of Nursing Homes was instigated to provide comprehensive information concerning oral disease experience, incidence and increments in a random sample of those older South Australians residing in... more
OBJECTIVES The Adelaide Dental Study of Nursing Homes was instigated to provide comprehensive information concerning oral disease experience, incidence and increments in a random sample of those older South Australians residing in Adelaide nursing homes. METHODS This paper presents caries experience results for existing and new nursing home residents, and caries incidence and increments for existing residents, from dental inspections conducted at the baseline and one-year data collections. RESULTS The residents in this study were very functionally dependent, medically compromised, cognitively impaired and behaviourally difficult older adults, the great majority of whom had moderate to severe cognitive impairment. Residents gave their carers many complex and challenging behavioural problems during oral hygiene care provision. Existing and new residents had similar dental history, oral hygiene, and sociodemographic characteristics, and similar cognitive, medical, functional, and nutri...
Research Interests: Dentistry, Activities of Daily Living, Humans, Nursing Homes, Female, and 15 moreDental Caries, Male, Mental Disorders, Nutritional Status, Gerodontology, Health Status, Nursing Home, Aged, Middle Aged, Analysis of Variance, Oral Hygiene, Dental Plaque Index, Chi Square Distribution, Cognition disorders, and DMF index
Corono-radicular grooves (CRGs) are developmental anomalies on maxillary incisor teeth that have both anthropological and clinical significance. Their reported prevalence varies from around 2% in modern Caucasoid populations to 18% in... more
Corono-radicular grooves (CRGs) are developmental anomalies on maxillary incisor teeth that have both anthropological and clinical significance. Their reported prevalence varies from around 2% in modern Caucasoid populations to 18% in Chinese, although methods of classification have differed between studies. The aim of this study was to determine the frequency of occureence and configuration of these grooves in a large sample of Caucasoid extracted permanent maxillary incisors collected in South Australia during the early 1900s (The Ramsey Smith Collection). A total of 1481 permanent maxillary incisors was examined using a dissecting microscope and classified according to tooth type and side. CRGs were scored according to their location, length, and depth. They were observed in 78 teeth (5.3%), with three teeth displaying two grooves. No significant difference in frequency occurred between central (4.7%) and lateral (5.7%) incisors, nor between right and left sides. Most of the CRGs...
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Although rounded protubernaces referred to as mamelons are observes commonly on the crowns of newly-emerged human incisor teeth, there have been very few systematic studies of their expression. The main aims of this study were to describe... more
Although rounded protubernaces referred to as mamelons are observes commonly on the crowns of newly-emerged human incisor teeth, there have been very few systematic studies of their expression. The main aims of this study were to describe the nature and extent of variation of mamelon expression on permanent incisors within and between two different human populations, and to quantify the contributions of genetic and environmental influences to observed variability. Mamelon expression was scored according to a 12-grade system described by Fitzgerald et al (1983) using dental models of 104 indigenous Australians, as well as 287 singletons and 175 pairs of twins of European descent. Over 90% of all incisors displayed mamelons, akthough the pattern of expression differed significantly between maxillary and mandibular arches, tooth types and ethnic groups. There were no significant differences in expression between sexes of antimeric teeth. A three-mamelon form was most common on maxillar...
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Biofilms are ubiquitous in nature and convey resistance to antimicrobials and host immunity to their members. Recent studies have shown that proteins are differentially expressed by microbes in biofilms as opposed to planktonic growth.... more
Biofilms are ubiquitous in nature and convey resistance to antimicrobials and host immunity to their members. Recent studies have shown that proteins are differentially expressed by microbes in biofilms as opposed to planktonic growth. Fusobacterium nucleatum plays a key role in the formation of the mature dental plaque associated with periodontal disease progression. When grown in vitro, under alkaline conditions, similar to those found in diseased periodontal pockets, significant changes in morphology occur in the bacterium, resulting in the formation of monoculture biofilms. Previous studies in our laboratory have shown that when grown under alkaline conditions there are distinct changes in cellular metabolism, in particular increased catabolism of intracellular poly-glucose. Objectives: The aim of this study was to identify F. nucleatum cytoplasmic proteins that undergo significant change in expression when grown under biofilm-inducing conditions. Methods: The cytoplasmic protei...
Research Interests: Dentistry, Capillaries, Animals, Male, Vascular endothelium, and 5 moreRats, Gingiva, Periodontal, Arterioles, and Molar
Fifty-eight patients (average age, 60 years) with gross mandibular atrophy had transmandibular implants inserted between 1984 and 1988. This study reports on their progress at 5 and 15 years. In both 1991 and 2000, 50 cases were reviewed,... more
Fifty-eight patients (average age, 60 years) with gross mandibular atrophy had transmandibular implants inserted between 1984 and 1988. This study reports on their progress at 5 and 15 years. In both 1991 and 2000, 50 cases were reviewed, with the other 8 lost to follow-up. Detailed surveys, using exactly the same format, were conducted to determine the outcome of transmandibular implant treatment. The records were reviewed and surviving patients with transmandibular implants were examined. An overall success rate of 80% in 1991 had fallen to 56% by 2000, with a total of 22 implants being removed. Factors involved in failure were age and medical infirmity of the patients, gross mandibular atrophy, and the use of several surgeons, in particular, trainees. This survey shows that the TMI has a progressive long-term failure rate and that extreme care needs to be taken in both patient selection and implant placement.
Research Interests: Dentistry, Osseointegration, Dental Implants, Oral and Maxillofacial Surgery, Humans, and 15 moreFemale, Male, Mandible, Aged, Middle Aged, Atrophy, Adult, Success Rate, Periodontal Diseases, Age Factors, Denture Retention, Failure rate, Patient selection, Device Removal, and Dental restoration failure
Research Interests: Dentistry, Activities of Daily Living, Humans, Nursing Homes, Female, and 15 moreDental Caries, Male, Mental Disorders, Nutritional Status, Gerodontology, Health Status, Nursing Home, Aged, Middle Aged, Analysis of Variance, Oral Hygiene, Dental Plaque Index, Chi Square Distribution, Cognition disorders, and DMF index
Research Interests: Biofilms, Mass Spectrometry, Image Analysis, Biological Sciences, Humans, and 12 moreAnimals, Dental Caries, Plankton, Enzyme, Protein Sequence Analysis, Dental Plaque, Protein Expression, Two-Dimensional Gel Electrophoresis, Amino Acid Sequence, Streptococcus mutans, Culture Media, and Medical and Health Sciences
Background The Gram negative anaerobe Fusobacterium nucleatum has been implicated in the aetiology of periodontal diseases. Although frequently isolated from healthy dental plaque, its numbers and proportion increase in plaque associated... more
Background The Gram negative anaerobe Fusobacterium nucleatum has been implicated in the aetiology of periodontal diseases. Although frequently isolated from healthy dental plaque, its numbers and proportion increase in plaque associated with disease. One of the significant physico-chemical changes in the diseased gingival sulcus is increased environmental pH. When grown under controlled conditions in our laboratory, F. nucleatum subspecies polymorphum formed mono-culture biofilms when cultured at pH 8.2. Biofilm formation is a survival strategy for bacteria, often associated with altered physiology and increased virulence. A proteomic approach was used to understand the phenotypic changes in F. nucleatum cells associated with alkaline induced biofilms. The proteomic based identification of significantly altered proteins was verified where possible using additional methods including quantitative real-time PCR (qRT-PCR), enzyme assay, acidic end-product analysis, intracellular polygl...
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Research Interests: Dentistry, Dementia, Humans, Needs Assessment, Female, and 15 moreDental Caries, Male, Clinical Sciences, Aged, Longitudinal Studies, Cognitive impairment, Food habits, Mouth Diseases, Cross Section, Dental Plaque, Chi Square Distribution, Cross Sectional Studies, Cognition disorders, Functional Dependency, and DMF index
In view of the continuing interest in the use of glass ionomer cements as a dentine substitute or base under composite resins, further investigations were carried out on the effects of the length of time of etching of the surface of the... more
In view of the continuing interest in the use of glass ionomer cements as a dentine substitute or base under composite resins, further investigations were carried out on the effects of the length of time of etching of the surface of the cement prior to the placement of the resin. A number of cements are available on the Australian market which are advocated for use in this technique. Each of them was subjected to etching for periods of 15, 30, 45, or 60 seconds and then stored in water for one week. Examination under a dissecting microscope and a scanning electron microscope revealed some variation in results between the different cements. It would appear that not all those materials presently marketed for this purpose are entirely suitable. Whilst 15 seconds is the preferred time for most cements, some require times up to 60 seconds to achieve the best result. Also, some of the cements showed signs of cracking, expansion and distortion after they had been stored in water for one week to allow for maturation before being prepared for viewing under the SEM. It is suggested that this group of cements is not suitable for the 'sandwich' technique.
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The complex oral health problems of nursing home residents have been well documented. However, the influences on residents' oral health status, including opinions and experiences of dental professionals and nursing home staff, have... more
The complex oral health problems of nursing home residents have been well documented. However, the influences on residents' oral health status, including opinions and experiences of dental professionals and nursing home staff, have not yet been adequately investigated. The baseline questionnaire component of this longitudinal study was mailed to all registered dentists practising in Adelaide and Adelaide nursing home directors of nursing (DONs). 413 dentists and 97 DONs indicated that Adelaide dentists' interest and training in nursing home dentistry was low. Dental service provision for nursing home residents was very low and dentists preferred to provide treatment at their dental practices. Few dental hygienists were working in nursing homes and dental professionals provided little educational assistance for nursing home staff. Dentists and DONs held several common and many varying perceptions of the problems associated with dental care provision in nursing homes. Both ide...