PubMed Health⌕ Search

Biomedical subjects

T Modéer

Publications and source records attributed to T Modéer.

107 records · Page 6Linked to original sources
PubMed1980

Post-treatment periodontal status of labially erupted maxillary canines.

This study evaluates the level of the gingival margin of labially erupted maxillary canines after orthodontic treatment in a sample of 47 individuals with a mean age of 14.2 years. Gingival recession was found in 33% of the canines with a high labial eruption pattern, and in 11% of those with a moderate labial eruption. A highly significant correlation was found between the clinical crown height and the original degree of high labial eruption. The evidence of this study supports the case for implementation of interceptive orthodontic treatment in order to prevent high labial eruption of maxillary canines.

Adolescent↗
PubMed1979

Lysozyme activity in saliva from children with various degree of gingivitis.

The lysozyme activity was determined in paraffin stimulated whole saliva from 51 randomly selected children. The average age was 6.5 years. The children were divided into four groups according to their degree of gingival inflammation. An agardiffusion method was used with Micrococcus lysodeikticus as indicator of the lysozyme activity. The mean value of the lysozyme activity was determined to 48.4 microgram/ml. In the non-inflamed group the enzyme activity was 8.7 microgram/ml, whereas it was lower, 31.5 microgram/ml, in children with inflamed gingiva. The correlation coefficient (p less than 0.05) suggest that there is a negative relationship between saliva lysozyme and the degree of gingival inflammation. Furthermore this study indicates that lysozyme acts as one of the resistant-factors against gingival inflammation in young individuals.

Child↗
PubMed1978

Peridontal status following surgical-orthodontic alignment of impacted teeth.

Treatment of impacted teeth is often a combination between oral surgery and orthodontics. This study evaluates the gingival condition of impacted teeth after surgical-orthodontic treatment, where two different surgical methods were used. In one group (n = 11) the teeth were radically exposed and orthodontically moved to their final position. In the other group (n = 11) the teeth were partially exposed by raising a mucoperiosteal flap. Orthodontic traction was then applied; whereafter the flap was sutured back into place. The results showed that one of the teeth in the partial exposure group and seven in the radical exposure group showed loss of attachment. This study indicates that a combination of mucoperiosteal flap technique and applied orthodontic traction is prefered to minimize the loss of attachment in cases of displaced impacted teeth.

Adolescent↗
PubMed1977

Effect of drying on viability of periodontal membrane.

The influence of a dry extra-alveolar period on the viability of cells in the periodontal membrane of human and monkey teeth was examined in vitro. Extracted mature teeth were allowed to dry for 0, 30, 60, 90, and 120 min. Cell viability was examined with the following methods: 1) Culturing the teeth with subsequent typsination and counting of viable cells. 2) Culturing the teeth with subsequent vital staining of the root surface with neutral red and estimation of the vital stained periodontal membrane area in percentage of the total root surface. Both methods revealed that the number of viable cells in the period declines very rapidly with an increase in drying time. After 2 h it was not possible to demonstrate cell viability using tissue cultrue technique.

Animals↗
PubMed1977

Human saliva kallikrein. Biological properties of saliva kallikrein isolated by use of affinity chromatography.

Kallikrein purified from whole human saliva was studied for its influence on leucocyte migration and kinin generating capacity. The kallikrein had a leucotactic effect on neutrophil leucocytes in the presence of 2% serum albumin. This leucotactic effect could be inhibited by Trasylol. The study showed that kallikrein liberated kinin from the precursor kininogen in dog plasma. Maximal release of kinin was achieved after 4 min of incubation. The kinin generating capacity of the enzyme was studied at different concentrations of kininogen. A maximum kinin release at 11.2 mug bradykinin per mg enzyme per minute was found.

Adult↗
PubMed1977

Characterization of trypsin-like enzymes from human saliva isolated by use of affinity chromatography.

Paraffin-stimulated whole mixed saliva was collected from 6 individuals and pooled. Three trypsin-like enzymes from saliva supernatant and two from the saliva sediment were isolated by use of affinity chromatography on a soybean trypsin inhibitor Sepharose 4 B column. The isoelectric points for these enzymes were pI 8.0, 6.8 and 6.4 from the supernatant and 6.4 and 6.2 from the sediment. The enzymes were characterized with respect to pH-optimum, pH-stability, temperature stability, substrate specificity and influence of metal ions and inhibitors. The Michaelis constants were determined for these enzymes on the substrates BAEE and TAME.

Adult↗
PubMedDate not supplied

Periodontal condition of epileptic adults treated long-term with phenytoin or carbamazepine.

The periodontal condition of 40 adult epileptic subjects (mean age 51 years) receiving long-term therapy (mean 18 years) with phenytoin (PHT) or carbamazepine (CBZ) was studied. The subjects completed a questionnaire and underwent clinical and radiologic examination. Patients receiving PHT exhibited the same level of alveolar bone loss as those receiving CBZ. Patients receiving PHT exhibited more units with gingival overgrowth, reflected by the significantly higher number of gingival units with increased probing depth (p < 0.05). The results indicate that long-term PHT does not result in increased risk for alveolar bone loss as compared with CBZ.

Adult↗
PubMedDate not supplied

The effect of growth hormone therapy on craniofacial growth and dental maturity in children with Down syndrome.

Craniofacial growth was evaluated 3 years after termination of growth hormone (GH) therapy in ten Down syndrome (DS) children. The control group consisted of 16 age-matched children with DS. The treatment started at 6-9 months of age, and the duration was 36 months. There were no statistically significant differences in craniofacial development between DS children treated with GH or DS children not treated. In conclusion, the results of this study indicate that GH therapy for 36 months in children with DS did not change the craniofacial morphology compared to a group of DS children not given GH.

Cephalometry↗