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Biomedical subjects

A Hugoson

Publications and source records attributed to A Hugoson.

At least 73 records · Page 4Linked to original sources
PubMed1982

Caries, periodontal and prosthetic findings in patients with removable partial dentures: a ten-year longitudinal study.

A 10-year longitudinal study was carried out on 27 patients treated with RPDs. Before the prosthetic treatment all patients were given oral hygiene motivation and instruction as well as periodontal therapy where indicated. The aim was a high level of cooperation. The RPDs, most of which were lower bilateral distal-extension dentures, were carefully planned and designed. During the follow-up period the patients were examined at yearly intervals, at which time remotivation and reinstruction regarding oral hygiene was given, and scaling, operative restorations, and prosthetic and other treatment procedures were preformed as required. Patient cooperation was excellent, and no significant deterioration of the periodontal status of the remaining teeth was found. In addition, there was a low increase in the frequency of decayed and filled tooth surfaces during the decade. The dentures showed damage and several changes during the follow-up period, conditions that necessitated various corrective prosthetic procedures.

Adult↗
PubMed1982

Longitudinal study of periodontal status in individuals aged 15 years in 1973 and 20 years in 1978 in Jönköping, Sweden.

The aim of this investigation was to study the periodontal status at the ages of 15 and 20 years in the same individuals. Gingival and periodontal data from 100 adolescents in 1973 constituted the basic material. Eighty subjects could be reexamined in 1978. The mean number of teeth per subject was 27.1 both in 1973 and in 1978. Three individuals in 1973 and two in 1978 had no bleeding gingival units. There was a decrease between 1973 and 1978 in the number of subjects with a high number of inflamed gingival units. The buccal and lingual surfaces also showed lower prevalence of gingivitis, while the proximal surfaces showed a slight increase in prevalence. The prevalence of surfaces with plaque in 1978 was decreased for buccal and lingual surfaces but slightly increased for proximal surfaces. Sixty-six individuals in 1973 and 71 in 1978 had no pocketing. Altogether 75 tooth surfaces with pocketing were diagnosed in 1973 and 21 in 1978. Most of the pockets were located at the proximal surfaces of the molars. Four individuals with infrabony defects in one to two sites were found in 1973 and five in 1978. No progression of the bony defects found in 1973 seemed to have occurred during the 5-year period. In spite of the frequent proximal areas with gingivitis, very few 20-year-olds showed signs of marginal bone loss, which indicates that gingivitis does not necessarily lead to destructive periodontitis in young people.

Adolescent↗
PubMed1982

Frequency distribution of individuals aged 20-70 years according to severity of periodontal disease.

This study is an analysis of the findings in an epidemiologic investigation covering a random sample of 600 individuals aged 20-70 years resident in the city of Jönköping, Sweden. The frequency distribution of individuals according to severity of periodontal disease was determined. The analysis was based on clinical registration of gingivitis, pocket depths and qualitative and quantitative changes of the alveolar bone in a full mouth intraoral survey. In the age groups 20 and 30 years, 96% and 85% of the individuals, respectively, had healthy periodontal tissues or were grouped as having gingivitis without signs of lowering of the periodontal bone level. In the age groups 40, 50 and 70 years none of the subjects was free from signs of gingivitis/periodontitis but, as for all age groups, strikingly few cases (at most 8%) of severe destructive periodontitis were found. The need for periodontal treatment is discussed as well as the role of specific etiologic agents in the development of destructive periodontal disease.

Adult↗
PubMed1981

Development of a preventive dental care programme for children and adolescents in the county of Jönköping 1973-1979.

Dental research the last two decades has created a basis for understanding the etiology, prevention and treatment of dental diseases. As a consequence, particular interest has been focused on the effect of prophylactic measures, efficiently organized and carried out, for various groups of individuals. However, it has proved difficult to organize systematic integrated preventive dental care for large parts of the population. The present paper describes in detail the development of integrated preventive dental care for children and adolescents in the County of Jönköping. Sweden, from 1973 to 1979. Based on the circumstances that existed before 1973 as regards e.g. personnel and the nature and content of the prophylactic measures, a description is made of the aims, methods, target groups, organization, financing and evaluation of a preventive dental care organization gradually developed for the age groups 0-16 years in the whole county (308,000 inhabitants; 4,000 individuals in each age-group). Important practical information as to the performance of the organization is given as well as examples of both basic preventive dental care programmes and supplementary programmes intended for individuals exhibiting a high prevalence of caries and gingivitis. As an effect of the programme instituted of remarkable improvement in dental health among children and adolescents has been achieved.

Adolescent↗
PubMed1981

Prevalence and distribution of gingivitis-periodontitis in children and adolescents. Epidemiological data as a base for risk group selection.

The aim of the present study is to analyze the prevalence and distribution of gingivitis and periodontitis in children and adolescents and thereby try to find guidelines for developing preventive programmes and selection of risk individuals. Gingival and periodontal data from 500 children, 100 children in each of the following age groups, 3, 5, 10, 15 and 20 years, constituted the material. About 50 per cent of the 3-year-olds and more or less all the children in the older age groups had visible plaque. The corresponding figures concerning gingival inflammation were 35 per cent of the 3-year-olds and 65 - 97 per cent of the older children and the adolescents. Pathologically deepend pockets were found in 17 per cent in the 15-year-olds and in 21 per cent in the 20-year-olds. Four individuals in the 15- and 20-year old groups showed clear signs of periodontitis. When the distribution of gingival inflammation and periodontal disease within the respective age groups was studied it was frequently found that a small number of children showed pronounud symptoms of disease. When the distribution of gingival inflammation within the dentition was analyzed it was found that in the primary dentition the highest prevalence of gingivitis was found at the lingual surfaces of the lower molars and the buccal surfaces of the upper molars. In the permanent dentition the highest prevalence of gingivitis was found on the molars of the upper and lower jaw. The prevalence of gingivitis increased on the proximal surfaces with increasing age. Concerning pathologically deepend pockets the occurrence in the 15-20-year-olds was restricted to the mesial surface of the first permanent molars.

Adolescent↗
PubMed1978

Effect of the Water Pik device on plaque accumulation and development of gingivitis.

The influence of the water irrigating device, Water Pik, on the accumulation of plaque and development of gingivitis has been studied using the model, "experimental gingivitis in man". The investigation was carried out on 41 patient volunteers whose teeth were thoroughly scaled and polished during a 4-week period of intensive oral hygiene preceding each experimental period. Gingival exudation, Plaque Index and Gingival Index were registered at the beginning of the experimental periods. The participants were then divided into four groups. Groups A and B abandoned all forms of active oral hygiene. Group A, however, were given Water Pik devices as the only oral hygiene aid. Groups C and D continued to clean their teeth using a toothbrush and Group C were given Water Pik devices as a supplementary aid. After 14 days, gingival exudation, Plaque Index, Gingival Index and soft tissue injuries were registered. The results showed that , while both groups A and B demonstrated extensive plaque deposits and gingivitis, these were present to a significantly lesser degree in Water Pik users. The toothbrushing groups (C and D) failed to demonstrate any further reduction of plaque or gingivitis when Water Pik was introduced as an additional measure. No soft tissue injuries were found.

Dental Devices, Home Care↗
PubMed1978

Influence of plaque control on the healing of experimentally-induced bone defects in the dog.

The aim of this investigation was to induce alveolar bone defects experimentally in dogs and to study the effects of mechanical tooth cleaning on their subsequent development. Thirty premolars from four beagle dogs were used. Bone defects were created by surgically exposing the adjacent alveolar bone and applying steel or silk ligatures around the roots of the chosen teeth. After 8 weeks the ligatures were removed. Dental plaque was allowed to accumulate on 20 premolars whereas daily plaque elimination by toothbrushing was carefully performed on 10 premolars. After 1, 3, and 6 months of plaque accumulation, gingival inflammation, periodontal pocket depth, gingival recession and the radiographically observed degree of bone destruction were registered. Histological examination was performed in conjunction with the registrations made 6 months after removal of the ligatures. The clinical, radiographic and histologic findings all confirm that a regeneration of the experimentally induced destruction of the periodontal tissues had taken place. This reaction was most evident in teeth exposed to mechanical plaque control. The remaining bone defects were consistently accompanied by recession of the gingival margin.

Alveolar Process↗
PubMed1977

Caries and periodontal status in patients fitted with removable partial dentures.

A 6-year follow-up study was carried out on 28 patients fitted with removable partial dentures. Prior to the prosthetic treatment all patients were given oral hygiene instruction and periodontal therapy where indicated. The removable partial dentures were carefully planned and designed. During the follow-up period the patients were examined at yearly intervals when remotivation, scalings, conservation and prosthetic adjustments were carried out as required. Patient cooperation was excellent and no significant deterioration of the periodontal status of the remaining teeth could be found. In addition the number of newly registered carious lesions was low. A certain degree of deterioration of occlusion, articulation, stability and clasp retention of the dentures fitted did occur, however.

Adult↗