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Results for “ORTHODONTIC APPLIANCES”

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At least 127 records · Page 7Linked to original sources
PubMed1990

Salivary fluoride concentrations in children with glass ionomer cemented orthodontic appliances.

Salivary fluoride concentrations were determined in 10 children (mean age 12.0 years) undergoing fixed orthodontic therapy. The orthodontic appliances, a minimum of 4 bands and 8 brackets, were cemented with a glass ionomer cement. Unstimulated whole saliva was collected 4 times a day before (baseline value) and at 1, 7, 14 and 28 days after cementation. The samples of saliva were centrifuged and the supernatants were analyzed with a fluoride-sensitive electrode. At baseline, the mean salivary fluoride concentration was 0.85 mumol/l. There was a significant increase during the day after cementation (1.88 mumol/l). After 7, 14 and 28 days, salivary fluoride levels were slightly elevated, but not statistically different from the baseline values. The ingested fluoride dose during the 1st day was estimated to be 0.02 mg. It is concluded that in orthodontic treatment with fixed appliances, a slow release of fluoride from glass ionomer cements could exert a local cariostatic effect on adjacent caries-susceptible enamel.

Adolescent↗
PubMed2004

Intrusion of the overerupted upper left first and second molars by mini-implants with partial-fixed orthodontic appliances: a case report.

Overeruption of maxillary molar(s) because of loss of the opposing teeth creates occlusal interference and functional disturbances. To restore proper occlusion, intrusion of the overerupted molars becomes essential before reconstruction can be initiated. A plausible procedure is orthodontic intrusion, which demands calibrated anchorage support from intraoral multiunit teeth and from headgear wear. In this report, we present a simplified and localized version of the orthodontic appliances in conjunction with mini-implants to intrude the overerupted molars. The purpose of using implants as skeletal anchorage was to eliminate the need for patient compliance for headgear wear and to overcome the difficulty resulting from the shortage of anchor teeth. The results showed that the biological responses of the teeth and the surrounding bony structures to the intrusion appeared normal and acceptable. Furthermore, the periodontal health and vitality of the teeth were well maintained even after a one-year follow-up.

Adult↗
PubMed1991

Results of a 3-year oral hygiene programme, including amine fluoride products, in patients treated with fixed orthodontic appliances.

This paper reports the results of a 3-year study on children treated with fixed orthodontic appliances. They were all regularly instructed in oral hygiene maintenance and used a standardized fluoride-free toothpaste during the course of the study. The patients were divided into three groups. Groups one and two, respectively, had a fluoride gel and fluoride fluid (Elmex amine fluoride products, GABA International Ltd, Basle, Switzerland) applied. Group three used only the toothpaste supplied, had oral hygiene instruction, but not topical applications. Caries increments were lowest and gingival health best in the two groups using amine fluorides, especially the gel group.

Adolescent↗
PubMed1989

[The importance of the choice of materials and their design for the efficacy of orthodontic appliances].

The aim of this study is to stress the importance of correct selection of materials for orthodontic appliances, and thereby emphasize the functional relationship between choice and use of material. The outlined state of the art is the result of carefully-conducted research, the development of which has been briefly mentioned; however, the type of problem resulted from critical observations by orthodontic practitioners who apply the research results for the benefit of their patients.

Dental Alloys↗