摘要:

A group of 29 individuals, 17—23 years old, with intact teeth, has been compared with a control group with respect to occurrence of mandibular dysfunction. A statistically significant difference between the groups, with a lower frequency and degree of dysfunction among the intact individuals was established. The results suggest that filling therapy per se may be a possible etiological factor in the mandibular dysfunction. Disorders in the masticatory neuromuscular system may arise from an abnormal tactile response to contacts on fillings, inducing an abnormal pattern of mandibular movement, possibly exceeding the tolerance level of the system.

ISSN:0001-6357    

DOI:10.3109/00016358309162296

出版商:Taylor&Francis    

年代:1983

数据来源: Taylor

ISSN:0001-6357    

DOI:10.3109/00016358309162297

出版商:Taylor&Francis    

年代:1983

数据来源: Taylor

摘要:

The color change resulting from storage in water was measured on a number of experimental and proprietary composite resins. The experimental resins contained varying amounts of amine (DEPT or DEBA), benzoyl-peroxide (BPO) and inhibitor (MHQ). The proprietary resins had earlier been analyzed as regards the composition of the monomer and the content of amine and peroxide. The color change of DEPT-containing resins was positively correlated with the DEPT/BPO ratio, and negatively correlated with the monomer content of BISGMA. DEBA-containing resins were more color stable than resins containing equimolar concentrations of DEPT. The color change was independent of MHQ up to a certain concentration; above this the color change increased with the amount of MHQ. In general, the light activated materials were more color stable than the chemically activated materials. The color change was not affected by pH, but decreased when the oxygen had been removed from the storage water. The test for color stability using UV-light irradiation gave results for proprietary resins that were not correlated with the results obtained by water storage.

ISSN:0001-6357    

DOI:10.3109/00016358309162298

出版商:Taylor&Francis    

年代:1983

数据来源: Taylor

摘要:

A bacteriological investigation has been made in two cases of persistent periapical infections. Neither of the two infections responded to root canal therapy including penicillin or penicillin and erythromycin. Samples were taken aseptically for bacteriological examination through the root canals. Chloroform-washed, sterile paper points were used for sampling. Cultivation was performed immediately at chairside on Kanamycin-Vancomycin laked blood agar (KVLB) and blood agar supplemented with menadione, cysteine and glucose for anaerobic incubation and chocolate agar for aerobic incubation.Enterobacter cloacaewas only isolate in case 1;Klebsiella pneumoniaeand enterococci were found in case 2. Obligately anaerobic bacteria were not found. The treatment was successful after antibiotic therapy based on susceptibility testing of the isolates. The route of infection by facultative enteric rods is discussed.

ISSN:0001-6357    

DOI:10.3109/00016358309162299

出版商:Taylor&Francis    

年代:1983

数据来源: Taylor

摘要:

Autotransplantation of 33 maxillary canines was followed up in 29 patients with an average age of 27.5 years. The mean follow-up period was 6.0 years. Endodontic treatment was performed in 23 teeth. Signs of root resorption were found in an increasing number of canines during the follow-up period. At the last examination eight canines showed no signs of resorption. External and internal resorption of inflammatory type were the most frequent forms of resorption and were also found to be the most hazardous factors for the prognosis of the transplanted tooth. Extraction of the transplant was necessary in four cases because of root resorption or poor bone regeneration.

ISSN:0001-6357    

DOI:10.3109/00016358309162300

出版商:Taylor&Francis    

年代:1983

数据来源: Taylor

摘要:

The clinical and histological appearance of the different types of denture stomatitis are in many respects very similar and confluent. In order to study the correlation between clinical and histological appearance and amount of yeasts, 48 patients with denture stomatitis and 24 with a healthy palatal mucosa were examined. The terms atrophic and hyperplastic denture stomatitis were introduced. The intensity of the palatal erythema and the growth of yeasts were most prominent among patients with hyperplastic lesions. Dryness and soreness of the mouth, angular cheilitis, spontaneous hemorrhage, glossitis and leukoplakias were found to a varying extent. No statistical evidence of correlation between the intensity of clinical erythema, amount of yeasts and grade of subepithelial inflammation could be found. The disease has most certainly a background other than solely increased growth of yeasts.

ISSN:0001-6357    

DOI:10.3109/00016358309162301

出版商:Taylor&Francis    

年代:1983

数据来源: Taylor

摘要:

Sets of intraoral radiographs consisting of ten periapicals and, in most cases, two posterior bitewings, from 99 girls and 101 boys aged 9–11 years were examined by four dentists. The study was undertaken to quantitate the disease and anomalies present in the sample and investigate the inter-examiner variability of the diagnosis. Each of the examiners independently recorded the disease and anomalies from the radiographs. Knowledge of previous dental treatment and abnormalities noted by the community dental officers were obtained from the children's dental records. The prevalence of disease and anomalies in the sample was low. Considerable examiner variability revealed a need for more objective criteria for the radiographic diagnosis of some of the dental anomalies. Girls had a significantly higher DMFT than boys. Hypodontia was found in 13 children, and dens invaginatus class III/IV (9) was observed on radiographs from 5 children.

ISSN:0001-6357    

DOI:10.3109/00016358309162302

出版商:Taylor&Francis    

年代:1983

数据来源: Taylor

摘要:

Snuff-induced oral lesions were studied clinically, histologically and by electron microscopy. The material was collected from 21 male snuff users. The lesions had a characteristic whitish appearance with a wrinkled swollen texture and the most common localization was in the vestibular area of the upper jaw. In two cases gingival retraction was observed. The light-microscopical examination showed a mild epithelial dysplasia in five cases. No carcinoma in situ or invasive carcinoma was recognized. In some of the cases ultrastructural changes in the basement lamina region, such as defects of the basement lamina and the occurrence of basal cell processes in the connective tissue, were observed. Odland bodies were seen in the epithelium. In the connective tissue filamentous material of unknown nature was found. The ultrastructure of the filamentous material suggested that it might be amyloid. In summary, snuff-induced lesions should be diagnosed, patients should be informed and made to quit the habit, and remaining lesions should be followed up regularly.

ISSN:0001-6357    

DOI:10.3109/00016358309162303

出版商:Taylor&Francis    

年代:1983

数据来源: Taylor