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Oral Biology and Oral Pathology Commons™
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- Aged; article; China; ethnology; female; health; health survey; human; India; Malaysia; male; middle aged; mouth tumor; precancer; prevalence; questionnaire; risk factor (1)
- Ball mill; fatigue; composites; orthodontics; COMPOSITE; SELF-REPAIR; CULTURE-CONDITIONS; COMPOSITE RESIN; DENTAL PULP STEM CELL; FUNCTIONALLY GRADED DESIGN; MULTI LAYERED POST; FUNCTIONALLY GRADED DENTAL POST; SOFT SKILLS; CLINICAL PAIRING; DENTAL PULP STROMAL CELLS; LONG-TERM EXPANSION; ROLLING BALL; BALL MILL; (1)
- Dental Health Surveys (1)
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Articles 1 - 4 of 4
Full-Text Articles in Oral Biology and Oral Pathology
Training Examiners For A National Epidemiological Survey Of Oral Mucosal Lesions, Rosnah Binti Zain, Razak I. A., Ikeda N., Axéll T., Downer M. C.
Training Examiners For A National Epidemiological Survey Of Oral Mucosal Lesions, Rosnah Binti Zain, Razak I. A., Ikeda N., Axéll T., Downer M. C.
Prof. Dr. Rosnah Binti Zain
Ensuring the validity and reliability of data collected in epidemiological surveys is an important consideration. The purpose of the present report is to describe a training and calibration programme for 16 examiners taking part in a national survey of oral mucosal lesions and to present an evaluation of the results. The programme included the distribution of a pictorial manual to participants and a series of lectures followed by three diagnostic sessions, two using slides and the last involving patients. At the final session, the trainees classified 88 per cent of 16 patients correctly in comparison with the definitive diagnoses of …
Prevalence Of Oral Precancerous And Cancerous Lesions In Elderly Malaysians, Ali T. B., Jalalluddin R. L., Abdul Razak I., Rosnah Binti Zain
Prevalence Of Oral Precancerous And Cancerous Lesions In Elderly Malaysians, Ali T. B., Jalalluddin R. L., Abdul Razak I., Rosnah Binti Zain
Prof. Dr. Rosnah Binti Zain
A house to house survey on elderly subjects aged 60 years old and above was undertaken in a large district in Malaysia. A total of 486 subjects in randomly selected Enumeration Blocks were interviewed and examined. The prevalence of oral precancerous lesions was recorded at 3.3%, of which leukoplakia was the most common. When the ethnic distribution of these oral precancerous and cancerous (OPC) lesions was compared, 72% of those inflicted were Indians. Oral cancer was detected in two subjects (0.4%), both of whom were of Indian origin. Among subjects with OPC lesions, 4.2% were smokers, 12.7% were betelquid chewers, …
Proliferating Cell Nuclear Antigen (Pcna) And P53 In Epithelial Dysplasia And Squamous Cell Carcinoma Of Oral Mucosa - A Marker For Poor Tumor Differentiation, Increasing Nuclear Atypia And Invasiveness?, Lan H. A., Rosnah Binti Zain, Saitoh M., Muramatsu Y., Shrestha P., Mori M.
Proliferating Cell Nuclear Antigen (Pcna) And P53 In Epithelial Dysplasia And Squamous Cell Carcinoma Of Oral Mucosa - A Marker For Poor Tumor Differentiation, Increasing Nuclear Atypia And Invasiveness?, Lan H. A., Rosnah Binti Zain, Saitoh M., Muramatsu Y., Shrestha P., Mori M.
Prof. Dr. Rosnah Binti Zain
The immunohistochemical expression of proliferating cell nuclear antigen (PCNA) and p53 was investigated in 9 cases of epithelial dysplasia and 38 cases of squamous cell carcinoma of the oral cavity. The intensity of immunoreactivity for each marker was assessed using a semiquantitative grading system, and was correlated with tumor differentiation, nuclear atypia and the patterns of invasive margins in the underlying connective tissue. PCNA expression, in dysplastic epithelium, was observed in the suprabasal and lower spinous layers; and the labeling grade and intensity of staining increased along the degree of cellular atypia. In 2 cases of dysplasia, weak positive immunoreactivity …
The Ball Mill As A Means Of Investigating The Mechanical Failure Of Dental Materials, Noor Hayaty Abu Kasim Abu Kasim N.H.
The Ball Mill As A Means Of Investigating The Mechanical Failure Of Dental Materials, Noor Hayaty Abu Kasim Abu Kasim N.H.
Noor Hayaty Abu Kasim Abu Kasim N.H.
Objective: The main purpose of this paper is to present a new method of predicting clinical performance using mechanical loading in a ball mill. Methods: A series of four experiments (two involving a hybrid composite and one each on orthodontic brackets and bands) is described in which the ball mill was used to subject specimens to mechanical fatigue. Results: A reproducibility study using composite beam specimens showed no significant difference between the Mean Survival Time (MST) in all the three experimental runs (P = 0.42). When subjected to thermal cycling, the MST of the cycled group was 155.0 min compared …