scholarly journals Perceptions of dental therapy students regarding the teaching and training with dental amalgam, in a dental school in KwaZulu-Natal, South Africa

2021 ◽  
Vol 76 (5) ◽  
pp. 258-269
Author(s):  
Sharmila Bissoon ◽  
Rajeshree Moodley
Keyword(s):  
South Africa ◽  
Resin Composite ◽  
Dental Materials ◽  
Cost Effective ◽  
Dental Amalgam ◽  
Posterior Teeth ◽  
The Past ◽  
Kwazulu Natal ◽  
Ceramic Restorations ◽  
And Training

Dental amalgam has been used as a restorative material in dentistry for the past 150 years. This material has been used to restore posterior teeth throughout the world and is also used in South Africa. Dental amalgam has been the material of choice for patients presenting with large tooth decay areas, including the loss of cuspal areas. The reason for this is that dental amalgam was always considered strong and durable. Compared to alternate dental materials, this material could also withstand the significant forces associated with chewing and biting. Dental amalgam is also considered more cost-effective than alternate dental materials such as conventional glass ionomers, resin-modified glass ionomers, resin composite and ceramic restorations, making it more feasible and material of choice in lower economic countries, including South Africa.

scholarly journals Should dental amalgams be used in dental training? The perspectives of dental academics at a university in South Africa

2021 ◽  
Vol 76 (09) ◽  
pp. 524-531
Author(s):  
Sharmila Bissoon ◽  
Rajeshree Moodley
Keyword(s):  
Resin Composite ◽  
Academic Staff ◽  
Dental Materials ◽  
Dental Amalgam ◽  
Mercury Content ◽  
Restorative Dentistry ◽  
Posterior Teeth ◽  
Waste Products ◽  
Clinical Supervisors ◽  
Dental Amalgams

Dental amalgam has been used in dentistry for the last 150 years to restore posterior teeth. Concerns regarding the safety issues with amalgam due to its mercury content have lead to the introduction of composite dental material to restore posterior teeth. This has transformed the teaching and training trends of direct restorative materials for posterior teeth. This descriptive study aimed to gain insight into academic staff and clinical supervisors’ perceptions regarding the use of dental amalgams in the teaching of restorative dentistry. This study used a qualitative method of data collection. Two focus group discussions were conducted between March and May 2020. Seventeen participants were invited to participate. Fourteen responded and participated, yielding an 82% response rate. The data identified two major themes, viz. the challenges experienced with the teaching of dental amalgam and curriculum development recommendations. Clinical quota requirements, disposal of waste products, and occupational and environmental risks regarding mercury exposure were sub-themes. Some of the curriculum recommendations included the skills gained during cavity preparations, the training and quota requirements of dental materials, and teaching trends locally, nationally and internationally.This study revealed that dental amalgam is still an integral part of the restorative dentistry curriculum at the university. However, the teaching of resin composite now occupies more than fifty percent of the restorative dentistry curriculum. Academics and clinical supervisors show a greater affinity for the placement of composite restorations.

Otta Seals and Gravseals as Low-Cost Surfacing Alternatives for Low-Volume Roads: Experiences in South Africa

2003 ◽  
Vol 1819 (1) ◽  
pp. 338-342 ◽  
Author(s):  
Simon Oloo ◽  
Rob Lindsay ◽  
Sam Mothilal
Keyword(s):  
South Africa ◽  
Low Cost ◽  
Cost Savings ◽  
Cost Effective ◽  
Field Trials ◽  
Low Volume Roads ◽  
Kwazulu Natal ◽  
Traffic Volumes ◽  
Low Volume ◽  
To Come

The geology of the northeastern part of the province of KwaZulu–Natal, South Africa, is predominantly alluvial with vast deposits of sands. Suitable gravel sources are hard to come by, which results in high graveling and regraveling costs brought about by long haul distances and accelerated gravel loss. Most gravel roads carry fewer than 500 vehicles per day of which less than 10% are heavy vehicles. The high cost of regraveling has led to consideration of upgrading such roads to surfaced standard, even though traffic volumes do not justify upgrading. Traditional chip seals are expensive and cannot be economically justified on roads that carry fewer than 500 vehicles per day. The KwaZulu–Natal Department of Transport is actively involved in efforts to identify cost-effective alternative surfacing products for low-volume roads. Field trials were conducted with Otta seals and Gravseals, which have been used successfully in other countries, as low-cost surfacing products for low-volume roads. The Otta seal is formed by placing graded aggregates on a relatively thick film of soft binder that, because of traffic and rolling, works its way through the aggregates. Gravseal consists of a special semipriming rubberized binder that is covered by a graded aggregate. Both Otta seals and Gravseals provide relatively flexible bituminous surfaces suitable for low-volume roads. Cost savings are derived mainly from the broad aggregate specifications, which allow for the use of marginal materials.

scholarly journals The vegetation of Tshanini Game Reserve and a comparison with equivalent units in the Tembe Elephant Park in Maputaland, South Africa

Koedoe ◽  
2004 ◽  
Vol 47 (1) ◽  
Author(s):  
J.Y. Gaugris ◽  
W.S. Matthews ◽  
M.W. Van Rooyen ◽  
J. Du P. Bothma
Keyword(s):  
South Africa ◽  
Natural Resources ◽  
Environmental Changes ◽  
Local Communities ◽  
Management Decisions ◽  
The Past ◽  
Kwazulu Natal ◽  
Renewable Natural Resources ◽  
Game Reserve ◽  
Northern Maputaland

The Tembe Elephant Park was proclaimed in 1983 after negotiations between the then KwaZulu Bureau of Natural Resources and the Tembe Tribal Authority in consultation with the local communities of northern Maputaland, KwaZulu-Natal, South Africa. The park boundaries were subsequently fenced and animal numbers started to increase. The fence has kept the utilisation of renewable natural resources by the local communities at bay for the past 19 years. In this period, the vegetation of the park has been utilised only by the indigenous fauna, but it has been affected by management decisions and possibly also regional environmental changes.

scholarly journals Experiences of people affected by rabies in Ethekwini district in the province of Kwazulu-Natal, South Africa

2020 ◽  
Vol 20 (1) ◽  
pp. 150-157
Author(s):  
Jeffrey Mduduzi Hadebe ◽  
Maureen Nokuthula Sibiya
Keyword(s):  
South Africa ◽  
Health Care ◽  
Structured Interview ◽  
Family Stability ◽  
Notifiable Disease ◽  
The Past ◽  
Kwazulu Natal ◽  
Data Saturation ◽  
Care Assistance ◽  
Rabies Exposure

Background: South Africa is one of the countries in Africa adversely affected by rabies, a notifiable disease which can be fatal. Fatalities can be prevented if health care is sought timeously and people are educated about the disease. The Province of Kwa- Zulu-Natal, in particular, has had rabies outbreaks in the past which have led to loss of many lives and devastation of entire families. Objective: The aim of the study was to explore the experiences of people affected by rabies in the eThekwini district of Kwa- Zulu-Natal, South Africa. Methods: The study was guided by a qualitative, exploratory, descriptive design. The sample was purposively selected, and a semi-structured interview was used to collect data from people affected by rabies in the eThekwini district. Data saturation was reached after 12 participants were interviewed. Data was analysed by using Tesch’s eight steps of thematic analysis. Results: The themes included family stability and support structures, exposure to risk factors and risky practices, factors that hindered participants from seeking health care assistance, limited knowledge about rabies and the effects of rabies. Conclusion: It was evident that participants experienced many challenges during their rabies exposure. Individuals, who were directly affected by rabies through contact with rabid animals, were expected to take responsibility for their own lives. Keywords: Rabies; South Africa; qualitative research. 

scholarly journals Eastern South African hydroclimate over the past 270,000 years

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Margit H. Simon ◽  
Martin Ziegler ◽  
Joyce Bosmans ◽  
Stephen Barker ◽  
Chris J.C. Reason ◽  
...  
Keyword(s):  
South Africa ◽  
Climate Variability ◽  
South African ◽  
East Asian Monsoon ◽  
Southwest Indian Ocean ◽  
Elemental Ratios ◽  
The Past ◽  
Proxy Records ◽  
Kwazulu Natal ◽  
And Shifts

Abstract Processes that control the hydrological balance in eastern South Africa on orbital to millennial timescales remain poorly understood because proxy records documenting its variability at high resolution are scarce. In this work, we present a detailed 270,000 year-long record of terrestrial climate variability in the KwaZulu-Natal province based on elemental ratios of Fe/K from the southwest Indian Ocean, derived from X-ray fluorescence core scanning. Eastern South African climate variability on these time scales reflects both the long-term effect of regional insolation changes driven by orbital precession and the effects associated with high-latitude abrupt climate forcing over the past two glacial-interglacial cycles, including millennial-scale events not previously identified. Rapid changes towards more humid conditions in eastern South Africa as the Northern Hemisphere entered phases of extreme cooling were potentially driven by a combination of warming in the Agulhas Current and shifts of the subtropical anticyclones. These climate oscillations appear coherent with other Southern Hemisphere records but are anti-phased with respect to the East Asian Monsoon. Numerical modelling results reveal that higher precipitation in the KwaZulu-Natal province during precession maxima is driven by a combination of increased local evaporation and elevated moisture transport into eastern South Africa from the coast of Mozambique.

scholarly journals Prevalence and correlates of prescription drug diversion and misuse among people living with HIV in the eThekwini district, KwaZulu-Natal, South Africa

PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0243718
Author(s):  
Buyisile Chibi ◽  
Nonhlanhla Yende-Zuma ◽  
Tivani P. Mashamba-Thompson
Keyword(s):  
South Africa ◽  
Prescription Drug ◽  
Prescription Medication ◽  
Drug Misuse ◽  
People Living With Hiv ◽  
Prescription Drug Misuse ◽  
The Past ◽  
Drug Diversion ◽  
Kwazulu Natal ◽  
Living With Hiv

Background Prescription drug diversion, and misuse has increased over the past decade and is notably in high-income-countries and significantly contributes to the opioid epidemic. People living with HIV (PLWH) are particularly vulnerable to prescription drug diversion, and misuse as most experience chronic pain, mental health problems and HIV-related illnesses. The researchers investigated the prevalence and correlates of prescription drug diversion, and misuse among PLWH in the eThekwini district, KwaZulu-Natal. Methods A cross-sectional study was conducted among 392 PLWH, conveniently recruited from the public healthcare facilities located in rural, semi-urban and urban areas of the eThekwini district. Participants answered questions about their background, prescription medications, substance use, and prescription drug diversion, and misuse. Descriptive analysis was performed to estimate the prevalence of prescription drug diversion, and misuse. Multivariable logistic regression was used to identify predictors of prescription drug diversion, and misuse. Findings Overall, 13% of the participants reported lifetime prescription drug diversion. The most common type of diversion was using prescription medication not prescribed by a healthcare provider (11%), followed by sharing of prescription medication (9%) and buying prescription medication without a medical script (5%). Twenty-three per cent of the participants reported prescription drug misuse in the past 90 days, with using prescription medication without a healthcare providers’ guidance (9%) and not following the scheduled time periods (8%) being the most common reported types of misuse. Self-medicating was identified as a risk factor for prescription drug misuse. There was no association between ART adherence and prescription drug diversion, and misuse. Conclusion The study findings contribute to improving the limited data available on prescription drug diversion, and misuse among PLWH in South Africa. The prevalence underscores a need for urgent interventions when prescribing medications with potential risks. Addressing the risk of self-medicating is imperative for HIV care outcomes and to avert death.

scholarly journals Reducing the environmental impact of shark-control programs: a case study from KwaZulu-Natal, South Africa

2011 ◽  
Vol 62 (6) ◽  
pp. 700 ◽  
Author(s):  
Geremy Cliff ◽  
Sheldon F. J. Dudley
Keyword(s):  
South Africa ◽  
Large Scale ◽  
Shark Species ◽  
Control Programs ◽  
The Past ◽  
South Wales ◽  
Kwazulu Natal ◽  
Shark Attacks ◽  
By Catch

Large-scale shark-control programs at popular beaches in New South Wales and Queensland, Australia, and KwaZulu-Natal (KZN), South Africa, provide protection against shark attack. Although these programs have enhanced bathing safety, reducing the environmental impacts of decades of fishing for large sharks and the associated by-catch remains a challenge. Over the past three decades, there have been several interventions to reduce such impact in the KZN program. The first was the release of all live sharks, including those species known to be responsible for fatal shark attacks. Measures to reduce catches of sharks associated with the winter influx of shoals of sardines, Sardinops sagax, have been increasingly successful. In addition, extensive removal of nets has resulted in a major reduction in effort. Collectively, these initiatives reduced mortalities of sharks by 64%. Baited lines, termed drumlines, were introduced at 18 beaches, where they replaced some of the nets. The former had a far lower by-catch of rays, turtles and cetaceans and significantly lower catches of certain shark species. Replacement of some nets with drumlines is planned for the remaining beaches. Only two attacks, both non-fatal, have occurred at protected beaches in KZN over the past three decades, indicating that the program has maintained its public safety mandate while it has succeeded in reducing its impact on the environment.

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