| 1. |
- Bergendal, T, et al.
(författare)
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A radiological inventory of possible sites for cylinder implants in edentulous regions of the jaws : An epidemiological study
- 1994
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Ingår i: Swedish Dental Journal. - 0347-9994. ; 18:3, s. 75-85
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Tidskriftsartikel (refereegranskat)abstract
- Implant treatment is nowadays requested as an alternative mode of treatment for both total and partial edentulousness. The purpose of the study was to assess the maximum number of possible implant sites in a group of adults. The study material comprised 579 persons divided into the age-groups 20, 30, 40, 50, 60 and 70 years. Based on radiological examination, the subjects were grouped according to Eichner's index. They comprised both dentate and edentulous individuals. Templates, marked with cylinder implants of different dimensions, were placed over edentulous regions. The possible number of cylinder-shaped endosseous implants that could be placed anterior to the second molar was assessed in relation to bone availability and anatomical structures. Gaps treated with fixed bridges were not registered. Altogether 1,048 presumptive fixture sites were marked, of which 78% in the age-groups 60 and 70 years. Eichner groups C 1-3, which comprised the edentulous persons, constituted 12% of the subjects and accounted for 57% of the possible number of implants. All edentulous mandibles and 70% of the edentulous maxillae were judged suitable for placement of implants. On average 5.5 and 5.8 sites were marked per edentulous maxilla and mandible, respectively. Groups B1-4 comprised 21% of the subjects and accounted for 37% of the implants. It is discussed that implant treatment in totally edentulous jaws will increase in relative terms in Sweden as in other Scandinavian countries, i.e. the percentage of edentulous jaws treated with implants will increase. In absolute terms, however, the treatment will probably decrease owing to a marked decrease in the number of edentulous individuals. The future need for implant treatment in the residual dentition will probably increase but it is difficult to predict by how much.
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| 2. |
- Hirsch, Jan M, et al.
(författare)
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Tobacco habits among teenagers in the city of Göteborg, Sweden, and possible association with dental caries.
- 1991
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Ingår i: Swedish dental journal. - 0347-9994. ; 15:3, s. 117-23
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Tidskriftsartikel (refereegranskat)abstract
- Frome nine dental clinics within the Public Dental Service in the City of Göteborg, 2145 patients aged 14 to 19 answered a questionnaire concerning their tobacco habits. Tobacco was used in some form by 27 per cent of the patients and use increased with age. Smoking was more common among girls than among boys: 24 and 12 per cent, respectively. The statistical analyses showed that smoking as a habit and an increased number of cigarettes smoked per day are positively correlated with increases in the number of decayed, missing and filled teeth and the number of initially decayed proximal surfaces. Further, all caries epidemiological data were significantly higher among patients with tobacco habits compared to non-users. It can be concluded that there is a correlation between the tobacco habit and increased caries prevalence. However, dietary and oral habits have to be further elucidated before any definite conclusions can be made regarding the effect of the tobacco habit per se on the development of caries.
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| 3. |
- Lundin, S A, et al.
(författare)
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Marginal bacterial leakage and pulp reactions in Class II composite resin restorations in vivo.
- 1990
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Ingår i: Swedish dental journal. - 0347-9994. ; 14:4, s. 185-92
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Tidskriftsartikel (refereegranskat)abstract
- The presence of stainable bacteria under restorations and pulp reactions in 36 teeth restored in vivo with a modified Class II composite resin restoration with two different dentine treatment techniques were studied on three separate follow-up occasions (1-3, 7-10 and 28-32 days). Half of the cavities showed stainable bacteria at the cavity margins and bottoms. Teeth restored with method A (Gluma/Occlusin) showed significantly fewer restorations with stainable bacteria then teeth restored with method B (Life/Occlusin) (p less than 0.05). Significantly more restorations with detectable bacteria were found after 28-32 days and restorative method B (p less than 0.05). There were no differences in occurrence and grade of pulp inflammation for the different dentine treatment techniques and time periods.
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| 4. |
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| 5. |
- Nannmark, Ulf, 1958, et al.
(författare)
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Macroscopic, microscopic and radiologic assessment of the condylar part of the TMJ in elderly subjects. An autopsy study.
- 1990
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Ingår i: Swedish dental journal. - 0347-9994. ; 14:4, s. 163-9
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Tidskriftsartikel (refereegranskat)abstract
- Thirty-seven temporomandibular joints were examined in an autopsy study. The sizes and forms of the condyles were found to be in good agreement with earlier presented results. Structural changes were found in 16 condyles (38%) in the macroscopic examination, while radiographically diagnosed erosions were found in 8 (21%). Twenty-two (59%) of the discs examined had either perforations, roughness or attenuations. Anterior disc position was found in 3 discs, and always in combination with a perforation of the disc.
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| 6. |
- Petersson, L G, et al.
(författare)
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In vitro and in vivo studies of an NaF impregnated toothpick.
- 1994
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Ingår i: Swedish dental journal. - 0347-9994. ; 18:3, s. 69-73
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Tidskriftsartikel (refereegranskat)abstract
- Fluoridated toothpicks (John O. Butler Co.), containing an average of 0.80 mg F as NaF, demonstrated a quick F release in vitro after 1 min immersion in distilled water (0.13 mg; 16%). Continued F release was found after 5 (0.22 mg; 28%) and 60 min (0.35 mg; 44%) and 24 hr (0.55 mg; 69%). In addition, F concentrations were measured in whole saliva of 10 adults before and after 1 min use of an F toothpick and after sucking on an 0.25 mg F tablet (Fludent). Baseline F concentrations of about 1 microM/L increased to 35 microM/L after using the toothpick. In comparison, the F tablet gave a mean salivary F concentration of 71 microM/L. The F levels in saliva after 1 hr were for the F toothpick 3 microM/L and for the F tablet 8 microM/L. Thus, F impregnated toothpick seems to be an interesting vehicle for F release in the oral cavity and merits further studies from a cariostatic point of view.
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| 7. |
- Varpio, Mirja
(författare)
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Changes in comprehensive dental care of the primary dentition from 1979 to 1989. I. Caries diagnosis and prevalence in a population treated at a university dental clinic.
- 1992
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Ingår i: Swedish dental journal. - 0347-9994. ; 16:1-2, s. 33-40
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the study was to monitor caries diagnosis and prevalence from 3 to 8 years of age in 199 children born in 1981, Cohort '81, and to compare the results with those of a similar investigation of 194 children born in 1971, Cohort '71. Cohort '71 was called annually for dental check-ups while Cohort '81 had prolonged check-up intervals. There was a significant difference between the two cohorts in the number of bite-wing exposures; a mean of 3.1 in Cohort '71 and 1.6 in Cohort '81. No bite-wings were taken in 1.1% of the children in Cohort '71 and in 9.5% of those in Cohort '81. At the age of eight years, caries diagnosis was supported by radiography in 76% of the children in both cohorts. In Cohort '71 proximal caries was diagnosed as manifest d-s when it was deeper than two-thirds of the enamel thickness and in Cohort '81, when a lesion had penetrated the enamel or was seen in the dentin. Manifest caries was diagnosed later in Cohort '81 than in Cohort '71. Cohort '81 showed an overall decline in occlusal caries while the distal surfaces of the first primary molars continued to be as vulnerable as in Cohort '71. The structure of the population and the preventive measures did not change but the caries prevalence was halved from 6.3 d-s in 1979 to 3.0 d-s in 1989 in 8-year-old children.
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| 8. |
- Varpio, Mirja
(författare)
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Changes in comprehensive dental care of the primary dentition from 1979 to 1989. II. Restorative treatment of primary molars in a population treated at a university dental clinic.
- 1993
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Ingår i: Swedish dental journal. - 0347-9994. ; 17:1-2, s. 35-42
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to compare the success of operative caries therapy of primary molars in two cohorts, one of children born in 1971, Cohort '71, and the other of children born in 1981, Cohort '81, followed up from the age of 3 to 8 years. There were significantly fewer caries lesions to treat in Cohort '81 than in Cohort '71. In Cohort '71, silver amalgam was used while in Cohort '81 silver amalgam was inserted in 65% and glass polyalkeonate cement (GPA) in 35%. Significantly fewer restorations were replaced in Cohort '81 than in Cohort 71, 49 v. 106. When the proportion of replacements was studied in relation to the number of proximal caries lesions, the percentage of replacements in Cohort '71 was 17% and in Cohort '81 14%, the distal surface of the lower first molar showing the same proportion in both cohorts, 21%. Of all replacements in Cohort '81, 41% were performed in the high caries prevalence group. In Cohort '81, 22% of all silver amalgam and 6% of all GPA fillings were replaced. The number of extracted primary molars decreased significantly, from 4% in Cohort '71 to 2% in Cohort '81. The success rate of the operative caries therapy did not increase much. Instead, cost benefits were found in decreasing caries prevalence and later onset of manifest caries.
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| 9. |
- Varpio, Mirja, et al.
(författare)
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Some characteristics of children with dental behaviour problems. Five-year follow-up of pedodontic treatment.
- 1991
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Ingår i: Swedish dental journal. - 0347-9994. ; 15:2, s. 85-93
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the study was to find out how 146 children with dental fear, aged 3-13 years and referred to a Pedodontic Clinic during 1 year, accepted dental treatment after five years. The main background variables causing dental fear were social factors in 45%, personality factors in 29%, and previous negative experience in 26%. Caries incidence was high in 71% of the patients. Most patients received up to three training sessions with the "tell-show-do" method. Conventional treatment was given in 48%, 25% needed conscious sedation, and 27%, were treated under general anaesthesia. Significantly more children with low caries incidence were treated conventionally. After five years, 78% of the children showed good acceptance of conventional dental treatment while 18% received conscious sedation and 4% general anaesthesia. Significantly more children referred at the age of 3-8 years showed good cooperation than did the older children. Good acceptance was also found significantly more often when conventional treatment had been given. Caries incidence had decreased in 41% and increased in 6% of the patients. The patients who continue to show negative acceptance should receive special attention in an attempt to change their attitude to dentistry in positive direction.
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| 10. |
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