摘要:

Information about the oral status and dental health behavior and the working history of 369 Finnish seamen on different types of ships was gathered by means of a questionnaire. A control group of workers on shore was formed for sailors 35–44 years of age. Removable dentures were worn by 16% of the seamen. Oral disorders during the week before the study were reported by one-third. During the previous 2 years 14% of the sailors had had at least one episode of oral troubles, 15% twice and 9% three or even more times. One-third of seamen with oral trouble had needed pain-killing tablets or antibiotics. Sick leave days had been needed by 3% of respondents during the previous 2 years because of oral disorder (mean length of sick leave period was 1.4 days). The control group reported gum bleeding more often than the seafarers. Even though there were no signs of a poorer dental condition in sailors than in the controls on shore, the possibility that the seafaring could constitute a risk for the oral health of seamen in other age groups cannot be excluded.

ISSN:0001-6357    

DOI:10.3109/00016359509005986

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

Levels of edentulousness were established for seven age groups by means of self-administered questionnaires. The percentage of edentulousness in the Icelandic adult population (18 years and over) was 20.7%. Edentulousness was first reported in the 35- to 44-year-olds and increased rapidly with age. Women had a higher level of edentulousness than men, and the percentage of edentulous people in Reykjavík was significantly lower than in towns, villages, and rural areas. The proportion of edentulous 35- to 44-year-olds and those 65 years old or older was significantly lower than in a similar study in 1985. The percentage of 18- to 79-year-old edentulous Icelanders in 1990 decreased considerably from the results of a national survey on oral health performed in 1962, mainly as a result of a major reduction of edentulousness in the younger age groups and among women.

ISSN:0001-6357    

DOI:10.3109/00016359509005987

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

The purpose of the present study was to evaluate the clinical quality over 4 years and the longevity over 10 years of 77 Mastique laminate veneers (DeTrey, Dentsply). The veneers were bonded to incisors and canines with a light-cured composite resin, using the acid-etch technique, and examined every 1/2 year in accordance with USPHS criteria. Anatomic form and marginal adaptation were rated excellent in more than 50% of the veneers throughout the study. Moderate surface wear was seen in most of the veneers after 4 years of service. Marginal discoloration and color match were recorded as not acceptable in 20% of the veneers at the 4-year control. No significant difference was found in the gingival index between veneer and control teeth. The cumulative retention rate was 40% after 4 years and 20% at the 10-year recall. Owing to the high frequency of spontaneous loss, Mastique laminate veneers cannot be recommended as permanent restorations.

ISSN:0001-6357    

DOI:10.3109/00016359509005988

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

The timing of the placement of first fillings because of caries on different permanent tooth surfaces was determined at three health centers in Finland. The 927 subjects analyzed were born either in 1970–71 or in 1980–81. Basically, two different types of filling placement site were identified: 1) fissures and pits and 2) proximal and smooth surfaces. In some fissures and pits a‘post-eruptive step’—that is, fillings placed in the year of emergence—was observed. This step had decreased markedly in the cohort born in 1980–81. The curves plateaued (retardation phase) at 50–60% for the occlusal surfaces in first molars for the children born in 1970–71 and at 20–30% for the younger cohort. The time without any filling varied from 1 to 7 years on smooth surfaces, and some surfaces remained totally filling-free. The filling placement curves followed the pattern of caries attack and can thus be used as an indicator of dental health.

ISSN:0001-6357    

DOI:10.3109/00016359509005989

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

This article reports a series of 103 cases of giant cell fibromas occurring in the oral mucosa. The commonest location was the gingiva, followed by the tongue and the buccal mucosa. The mean age of the patients was 27.7 years, and the median age 21 years. Microscopically, the tumors were characterized by the presence of large stellate or angular cells, which occasionally contained several nuclei. Immunohistochemical stains showed that the cells were vimentin-positive but negative for S-100 protein, cytokeratin, leukocyte common antigen, and neurofilament.

ISSN:0001-6357    

DOI:10.3109/00016359509005990

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

Thirty-nine temporomandibular joint autopsy specimens were examined by microscopy and tomography for erosive changes. We found two types of erosive changes, an extensive type with complete loss of cartilage and a local type with retained articular cartilage. On microscopic examination nearly twice as many temporal components as condyles were eroded. The erosions were generally more extensive in the condyle. Erosions in the condyle were evenly distributed. In the temporal component there was a slight predominance of erosions located to the lateral part of the tubercle. The radiologie investigation underestimated both the presence and the extent of the erosions. Positive predictive values and negative predictive values were 0.70 and 0.83, respectively, for erosions in the condyle and 0.91 and 0.68 for erosions in the temporal component. It is suggested that the initial event in osteoarthrosis of the TMJ can occur as a subarticular hard-tissue change. The need for more accurate diagnostic tools than radiography should be stressed.

ISSN:0001-6357    

DOI:10.3109/00016359509005991

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

Psychologic factors were studied in 10 patients with symptoms presumed to be caused by electricity (EG) and in 10 patients with symptoms presumed to be caused by visual display units (VG) and compared with a sex- and age-matched control group (CG). Psychologic differences between the EG and VG were also measured. The symptoms presumed to be caused by electricity or visual display units were registered, and the personality, psychologic functioning, and quality of life were determined by using the Karohnska Scales of Personality (KSP), an additional Personality Scale (PS), a Psychological Functioning Scale (PFS), and a Quality of Life Scale (QLS). The results showed that the commonest general symptoms in the EG/VG were skin complaints, fatigue, pain, and dizziness, and the commonest oral symptoms were gustatory disturbance, burning mouth, and temporomandibular joint dysfunction. The patients in the EG described more different types of both general and oral symptoms than those in the VG. The result showed that the VG scored significantly higher only in the KSP Somatic Anxiety and Muscular Tension scales, and the EG scored significantly lower in the KSP Socialization scale and significantly higher in the Somatic Anxiety, Muscular Tension, and Psychasthenia scales. In addition, only the EG differed significantly on the PS, PFS, and QLS. The EG differed significantly in such psychologic aspects as being more fatigued in the PS, in having more difficulty in concentrating, in taking the initiative, and in getting on with people in the PFS and experiencing inactivity and visiting other people rarely in the QLS. The conclusion was that patients with symptoms presumed to be caused by electricity and visual display units differed from each other psychologically and, therefore, should be handled clinically in different ways. The need for an interdisciplinary approach to these patients is emphasized.

ISSN:0001-6357    

DOI:10.3109/00016359509005992

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

Diametral tensile strength (DTS), fracture strength, and Vickers microhardness were tested in three resin-modified glass ionomer cements (GICs), one chemically set GIC, and one dental composite. For the DTS studies test discs were immersed in deionized water at 37°C for 10 min, 1 day, and 28 days, respectively. Cured discs were also implanted in back muscles of rats for 28 days before testing. The effects of light irradiation time and delayed curing on the DTS of the cements were also studied. Significantly higher strength was observed in the resin-modified GICs in comparison with the chemically set GIC at all observation periods. K71 showed the highest strength among the GICs. No strength reductions were detected after 28 days for the specimens in vivo. An illumination time of 20 sec was enough to obtain final strength in the PFA and K71 specimens, and 40 sec was needed in the VI specimens. The strength of the resin-modified GICs when light-cured was significantly higher than when the same cements were allowed to set without irradiation. The microhardness of the light-cured GICs was similar to that of the dental composite. Considering the improved fracture strength and surface hardness, it was concluded that the resin-modified GICs present an interesting material for further development.

ISSN:0001-6357    

DOI:10.3109/00016359509005993

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

The aim of this study was to compare the results of the level of treatment need as judged from a sample drawn from the general population aged 35, 50, and 65 years with treatments performed in 1992 and 1993 on patients of matched ages. Both the sample and the patients lived in Västerbotten in the northern part of Sweden. In all three age groups there was a significantly higher frequency of restorative treatment performed than the professionally assessed need in the epidemiologic sample. In all ages examined, treatment aimed at rehabilitation of temporomandibular disorders was performed statistically significantly (p<0.001) less frequently than the evaluated need in the population. A similar result was found for dentures among 65-year-olds. The results may reflect dental care paradigms favoring operations on single teeth rather than treatments aimed at functional rehabilitation on a broader sense.

ISSN:0001-6357    

DOI:10.3109/00016359509005994

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor

摘要:

On the basis of the criteria of the California Dental Association (CDA), 66 CAD/CAM-manufactured ceramic class-II inlays (Cerec) were compared intraindividually after they had been cemented with either a chemically cured or a dual-cured composite resin luting agent in 27 patients. Plaque and gingival conditions, the overall time consumption for producing each inlay, and the frequency of postoperative sensitivity were also evaluated. There was no statistically significant difference between the two luting agents with regard to the properties evaluated. One inlay was replaced owing to fracture of the restored tooth just before the 24-month re-examination. After 2 years excellent CDA ratings were obtained for color in 92% of the remaining 65 inlays. The corresponding figures for surface and for anatomic form were 100% and 85%, respectively. For margin integrity 85% of the 33 inlays cemented with the dual-cured luting agent and 88% of the 33 inlays cemented with the chemically cured luting agent were rated excellent after 2 years.

ISSN:0001-6357    

DOI:10.3109/00016359509005995

出版商:Taylor&Francis    

年代:1995

数据来源: Taylor