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[A contractor with damaged knees]. NEDERLANDS TIJDSCHRIFT VOOR GENEESKUNDE 2012; 156:A4561. [PMID: 23171560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A 51-year-old man developed burn wounds on both knees after finishing a cement floor. Cement burns are caused by wet cement, which is highly alkaline Initial treatment consists of lavage. Further management can be conservative but in full thickness injuries excision and grafting should be considered.
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Abstract
Partial-stabilized cement (PSC) is a kind of modified calcium silicate cement used for root-end surgery. Minor transition metal elements Co, Cr, and Zn were added for enhancing the setting property of to PSC. In our previous study, minor transition metal additions greatly improved the setting property of PSC. However, the concern of metal toxicity was raised, as the material would be used in the human body. In this study, we evaluated the cytotoxicity of PSC in comparison with mineral trioxide aggregate (MTA), which is one of the commercialized materials used for dental root-end filling. Primary osteoblast cell was used as the target cell. Cell proliferation, cytotoxicity, viability, function, and senescence were analyzed. The cytotoxicity of the PSC-Zn group (PSC with Zn addition) was similar to that of MTA. PSC-Zn is not only nontoxic at the cellular level but also has adequate mechanical property, which makes it a potential root-end filling material for apical surgery.
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Abstract
OBJECTIVE Cement masons are known to have significant silica exposure, and silica exposure and silicosis are thought to increase risk of autoimmune disease. Because the mechanisms remain obscure, with inconclusive reports of systemic immune effects following silica exposure, our goal was to identify potential early markers of silica-related immunologic and respiratory effects. METHODS We conducted a cross-sectional study of cement mason apprentices and electrician (control) apprentices. Demographics, dust exposure history, symptoms, spirometry, exhaled nitric oxide, and blood (for immunoglobulins, cytokines, cell counts, and surface markers) were obtained from 11 cement mason apprentices and a comparison group of 21 electrician apprentices. RESULTS Masons had significantly higher (P < 0.05) masonry dust exposure (42 versus 9 dust-hour-years), serum interleukin-1beta (IL-1beta; 12 versus 9 pg/ml), IL-2 (20 versus 8 pg/ml), IL-4 (193 versus 67 pg/ml), IL-10 (44 versus 21 pg/ml), and interferon-gamma (139 versus 65 pg/ml) compared with electricians. In contrast, masons had significantly lower percentages of CD25+ (12% versus 20%) and CD69+ (4% versus 9%) lymphocytes. CONCLUSION Mason apprentices had higher levels of serum proinflammatory cytokines and lower percentages of CD25+ and CD69+ lymphocytes than did electrician apprentices. These preliminary findings suggest that mason apprentices may be at greater risk of a systemic proinflammatory state that is potentially linked to immune dysregulation. Although distinct limitations of this preliminary data are recognized, this is consistent with early biologic effects leading to increased incidence of autoimmune disease among silica-exposed workers. Prospective studies are needed to validate these initial findings and clarify the temporal sequence of observed relationships.
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4
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[Cancer risk in the production and residential use of asbestos-cement products]. GIGIENA I SANITARIIA 2006:32-6. [PMID: 16758817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
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5
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[On prevalence of pneumoconiosis in cement plants (review of literature)]. MEDITSINA TRUDA I PROMYSHLENNAIA EKOLOGIIA 2002:26-31. [PMID: 11855304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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6
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Nonmetal crowns. J Am Dent Assoc 1999; 130:777-8. [PMID: 10377634 DOI: 10.14219/jada.archive.1999.0291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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[Clinical investigations and cytological examinations of the nose in subject exposed to cement dust]. OTOLARYNGOLOGIA POLSKA 1998; 51:133-8. [PMID: 9518323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mucous membranes of the nose of 90 persons exposed to cement dust were investigated clinically and cytologically. We found atrophic changes in 37.8% persons and hypertrophic changes in 13.3%. In a halt of the investigated persons abnormality in epithelium forms in cytological examination was demonstrated. The connection of inflammatory changes and pathological forms of the epithelium has been documented. The correlation between presentation of cement deposits and inflammatory infiltrations and atrophic and hypertrophic changes was confirmed.
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[Cause-specific mortality of asbestos-cement workers compensated for asbestosis in the city of Bari]. EPIDEMIOLOGIA E PREVENZIONE 1998; 22:8-11. [PMID: 9621499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The cause-specific mortality of 233 asbestos cement workers employed by the Fibronit company in Bari and compensated for asbestosis was investigated. Cohort members were enrolled on 31.12.1979 and followed through 30.4.1997; follow-up was completed for 98.3% of study subjects, and causes of death were ascertained for 96.6% of deceased subjects. Observed mortality was contrasted to that expected according to cause-sex-age- and calendar time-specific rates of the population resident in the Apulia Region. All causes observed mortality exceeded expected value (SMR: 117, 87 observed), due to a significant' increase in pneumoconiosis (SMR: 11238, 14 observed) and malignant neoplasms (SMR: 163, 38 observed)). A significant decrease of circulatory diseases was found (SMR: 64, 18 observed). Among cancer deaths, the following sites showed a significant excess: lung (SMR: 206, 17 observed), pleura (SMR: 2551, 4 observed), mediastinum (SMR: 2367, 2 observed) and peritoneum (SMR: 2877, 2 observed). The excess mortality due to asbestosis, respiratory cancer and peritoned neoplasms can be causally attributed to occupational asbestos exposure.
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[Lung cancer mortality in Casale Monferrato (Italy) and attributable risk to occupations in the asbestos-cement production]. EPIDEMIOLOGIA E PREVENZIONE 1995; 19:338-41. [PMID: 8852083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The study presents mortality rates for lung cancer in the town of Casale Monferrato, where the largest Italian asbestos cement-plant was located. Cases of lung cancer dying in 1989-94 were exhaustively searched for in the register of deaths. Each case of lung cancer has been identified as ever or never employed in the factory with a linkage to the rosters of employees in the plant. Women were also identified as ever or never married to an asbestos-cement worker. The number of person-years at risk for asbestos cement workers and their wives was measured on the basis of the most recent follow-up. Mortality rates were computed separately for those exposed (workers and wives of workers) and for those with no evidence of exposure. Mortality rates for non-exposed were similar to rates in Piedmont (the region where Casale is located). The relative risk (ever exposed vs. never exposed) was 2.8 among men and 2.1 among women. Attributable risk among the exposed was 64.5% for men and 53.1% for women while among the general population it was 18.1% for men and 13.2% for women. The study confirms the dramatic effect of occupational asbestos exposure in Casale Monferrato but does not suggest an increase in lung cancer mortality among people with no occupational activity in the asbestos-cement production.
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Abstract
Cement is a rare cause of full-thickness burns. We have examined the aetiology, frequency and severity of these burns, and assessed public awareness of the potential of cement as a caustic agent. Of patients, 95 per cent were unaware of the potential of cement to cause burns, and none had seen precautionary warnings on cement bags or delivery dockets. Factors important in burn production appear to be alkalinity, duration of contact and the abrasive nature of the cement particles. It is concluded that doctors, especially casualty officers, should know of the potential of progressive full-thickness burns from wet cement. General public awareness should be increased. The cement manufacturers were asked to comment on the content of this paper.
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Mortality and cancer morbidity among cement workers. BRITISH JOURNAL OF INDUSTRIAL MEDICINE 1993; 50:264-72. [PMID: 8457494 PMCID: PMC1061274 DOI: 10.1136/oem.50.3.264] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
OBJECTIVE To explore associations between exposure to cement dust and cause specific mortality and tumour morbidity, especially gastrointestinal tumours. DESIGN A retrospective cohort study. SUBJECTS AND SETTING 2400 men, employed for at least 12 months in two Swedish cement factories. MAIN OUTCOME MEASURES Cause specific morality from death certificates (1952-86). Cancer morbidity from tumour registry information (1958-86). Standardised mortality rates (SMRs; national reference rates) and standardised morbidity incidence rates (SIRs; regional reference rates) were calculated. RESULTS An increased risk of colorectal cancer was found > or = 15 years since the start of employment (SIR 1.6, 95% confidence interval (95% CI) 1.1-2.3), mainly due to an increased risk for tumours in the right part of the colon (SIR 2.7, 95% CI 1.4-4.8), but not in the left part (SIR 1.0, 95% CI 0.3-2.5). There was a numerical increase of rectal cancer (SIR 1.5, 95% CI 0.8-2.5). Exposure (duration of blue collar employment)-response relations were found for right sided colon cancer. After > or = 25 years of cement work, the risk was fourfold (SIR 4.3, 95% CI 1.7-8.9). There was no excess of stomach cancer or respiratory cancer. Neither total mortality nor cause specific mortality were significantly increased. CONCLUSIONS Diverging risk patterns for tumours with different localisations within the large bowel were found in the morbidity study. Long term exposure to cement dust was a risk factor for right sided colon cancer. The mortality study did not show this risk.
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Histological type of lung carcinoma in asbestos cement workers and matched controls. BRITISH JOURNAL OF INDUSTRIAL MEDICINE 1992; 49:626-630. [PMID: 1390268 PMCID: PMC1039307 DOI: 10.1136/oem.49.9.626] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Histological types of lung carcinoma were examined in a case series of workers exposed to asbestos cement dust (n = 29) and matched controls (n = 87). The proportion of adenocarcinomas was 31% among the exposed subjects and 15% among the controls (mid-p = 0.05). Among workers with high exposure the proportion of adenocarcinoma was even higher (45%, 5/11; mid-p = 0.03). The proportion of peripheral tumours tended to be higher among exposed cases than controls (24 v 12%, mid-p = 0.12). Lobe of origin did not differ, however, between exposed cases and controls. Thus the study indicates an association between the degree of exposure to asbestos and adenocarcinoma of the lung, and a peripheral rather than central localisation of the tumours, but with virtually the same distribution of lobe of origin as in the general population.
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[Histological study of the pulp-damaging effect of composite filling materials in dog teeth]. FOGORVOSI SZEMLE 1988; 81:301-5. [PMID: 3077357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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14
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[Cell-damaging effect of composite filling materials]. FOGORVOSI SZEMLE 1984; 77:179-83. [PMID: 6588004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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15
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[Biological properties of the materials used in conservative dentistry. III. Materials for coronal reconstruction]. MINERVA STOMATOLOGICA 1984; 33:81-5. [PMID: 6584730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Pulmonary function in cement industry workers. W INDIAN MED J 1983; 32:152-6. [PMID: 6636718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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17
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[Effect of cement dust on periodontal conditions]. ZEITSCHRIFT FUR ARZTLICHE FORTBILDUNG 1982; 76:357-60. [PMID: 7113280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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18
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[Filling of carious defects in permanent lateral teeth in school children]. CZASOPISMO STOMATOLOGICZNE 1981; 34:133-8. [PMID: 6942965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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[The irritant effect of plastic filling materials on the dental pulp]. DEUTSCHE ZAHNARZTLICHE ZEITSCHRIFT 1980; 35:486-8. [PMID: 6773734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The irritating effect of amalgams, silicate cement, methyl methacrylate, composites, and glass ionomer cement on animal and human dental pulp was discussed. If the foundation is appropriate, pulpal alterations can be reduced or even eliminated.
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[Epidemiologic studies. I. Secondary caries in tooth areas restored by silver-tin-amalgam, silicate cement or inlays]. STOMATOLOGIE DER DDR 1976; 26:430-4. [PMID: 1069393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
On the basis of epidemiologic studies on 10 106 sugjects from the population of the town of Rostock, the authors deal with the frequency of filled tooth areas and their affection by secondary caries with special regard to filling materials (silver-tin amalgam, silicate cement, inlay). The low frequency of secondary caries in tooth areas restored by means of inlays is noteworthy. Finally, the authors give recommendations for practice.
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Response of the dental pulp to invasion of bacteria around three filling materials. ASDC JOURNAL OF DENTISTRY FOR CHILDREN 1976; 43:83-9. [PMID: 767383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Abstract
The biological compatibility of an experimental glass ionomer (silicopolyacrylate) cement has been assessed in in vitro (cell culture) and in vivo (monkey teeth) tests. For comparison a conventional silicate cement (Super Syntrex) was included in the in vivo experiments. In vitro, the glass ionomer cement was toxic when freshly prepared. The toxicity decreased, however, with increasing setting time. In experiments with prolonged cell-material contact time with specimens which had set for 24 h, the material appeared to be non-toxic. The in vivo experiments confirmed previous reports concerning unfavourable pulp reaction caused by silicate cement, while the glass ionomer cement caused mainly a mild pulp reaction after 8 days of observation. Unfortunately no longer-term observations were obtained since the material had been washed out of the cavities within 36 days.
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Plaque accumulation on different dental filling materials. SCANDINAVIAN JOURNAL OF DENTAL RESEARCH 1973; 81:538-42. [PMID: 4520618 DOI: 10.1111/j.1600-0722.1973.tb00362.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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28
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[Protection of the pulp against damage caused by filling materials]. DEUTSCHE ZAHNARZTLICHE ZEITSCHRIFT 1973; 28:465-70. [PMID: 4513613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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29
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Silicate cement restorations related to periapical lesions of maxillary anterior teeth. J Prosthet Dent 1972; 27:39-43. [PMID: 4500113 DOI: 10.1016/0022-3913(72)90171-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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31
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[Studies on pulp damage by silicate and silicate-phosphate cement and its prevention]. DEUTSCHE ZAHNARZTLICHE ZEITSCHRIFT 1971; 26:620-3. [PMID: 5281154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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32
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[Clinical control of silicate cement fillings]. DEUTSCHE ZAHNARZTLICHE ZEITSCHRIFT 1971; 26:665-71. [PMID: 5281158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Long-term pulp reaction to silicate cement with an intradental control. SCANDINAVIAN JOURNAL OF DENTAL RESEARCH 1971; 79:422-9. [PMID: 5288676 DOI: 10.1111/j.1600-0722.1971.tb02031.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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34
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[Clinical and radiological aspects after obturation with silicate of vital teeth]. STOMATOLOGIA 1971; 18:33-9. [PMID: 5278753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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35
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[Pulp reactions to silicate cements (A study of 730 cases of endodontically treated teeth)]. ODONTOSTOMATOLOGIKE PROODOS 1970; 24:323-32. [PMID: 4998587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Pulpal irritation due to the phosphoric acid component of silicate cement. ORAL SURGERY, ORAL MEDICINE, AND ORAL PATHOLOGY 1970; 29:447-54. [PMID: 5263277 DOI: 10.1016/0030-4220(70)90149-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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38
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39
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[Iatrogenic pulpal pathology]. REVUE FRANCAISE D'ODONTO-STOMATOLOGIE 1969; 16:635-8. [PMID: 5257248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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40
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Aetiology of mortality of incisor pulps. Br Dent J 1968; 125:59-61. [PMID: 5241759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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41
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The biology of the endodontic patient. II. Causes of periapical pathosis and two-hour postprandial blood glucose. JOURNAL OF ORAL MEDICINE 1968; 23:39-42. [PMID: 5241915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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42
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[Studies on the possibilities of employing Tresilane in the filling of defects by means of siliceous cements]. CZASOPISMO STOMATOLOGICZNE 1965; 18:763-6. [PMID: 5221263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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