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asics tiger shoes Different vertical facial types

 
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 PostWysłany: Pon 15:25, 14 Mar 2011    Temat postu: asics tiger shoes Different vertical facial types Back to top

Different vertical facial types of adult patients with upper airway morphology and hyoid position of the difference


artII: Morphologicaluvulo-glossopha-ryngealchanges. EurJOrthod, 1999,21 (4): 345 [10] LybergT, KrogstadO, DjupeslandG. Cephalometricanaly-sisinpatientswithobstructivesleepapnoeasyndrome. I. Skeletalmorpholo ~. JLaryngolOtol, 1989,103 (3): 287 (Received :2005-07.12 Revised :2005 -09-19), Zhi Wu, s Zhi Zhi Zhi, Zheng operculum 'I I care Zheng operculum' Zhi, Zheng Zhi operculum, Zhi, s peak seats,[link widoczny dla zalogowanych], 8 seats Zhi Ping, s fluoride acid etching liquid control enamel demineralization in orthodontic clinical observation Hu Zhenmei''high Zhentao '. Lin Jian Wang Lijuan'''(1 Fifth Hospital of Harbin Medical University, Department of Stomatology, Fourth Affiliated Hospital of Harbin 1,500,402) in orthodontic treatment, the fixed appliance used in a long time,[link widoczny dla zalogowanych], often in enamel demineralization phenomenon - chalk spot. Gorelick and so on. 'Investigation of enamel demineralization during orthodontic patients was 50% to 80%, Hu Wei et al reported that the incidence rate of 594 percent,[link widoczny dla zalogowanych], both higher than the general population prevalence of 46%. Fluoride can enhance the resistance of enamel demineralization and promote remineralization effect. This acid solution with fluoride enamel demineralization during orthodontic control. 1 Materials and methods 1.1l randomly selected outpatient clinical data l6 name orthodontic patients, male 7,[link widoczny dla zalogowanych], female 9, mean age 15 years old. Divided into the fluoride group (8 cases, 128 teeth) and the control group (8 cases, 128 teeth), fluoride acid solution with fluoride group (20ml / L sodium fluoride solution and 350ml / L phosphoric acid solution by preparation of the volume ratio of 1:5) treated orthodontic patients in the control group was 350ml / L phosphoric acid treatment orthodontic patients. 2 groups were used edgewise technique, the Beijing-Tianjin enamel adhesive bonding brackets. 1.2 cleansing routine treatment, drying the tooth surface, in the fluoride group fluoride acid etching with the Central Division crown buccal enamel 60S,[link widoczny dla zalogowanych], rinse 10S, dryer. The conventional treatment group. All subjects 1 year after the orthodontic treatment, clean the tooth surface drying, visual inspection lamp in the dental work of all anterior teeth, canines and second premolars at the lip and buccal brackets degree of enamel demineralization. 1.3 The degree of demineralization observed in 4 standard levels: 0 enamel surface is smooth, transparent, no lesions; a mild chalky enamel plaque (dental plaque area greater than 50% of area); 3 severe enamel surface level chalk plaques (total area of ​​plaque area of ​​the teeth) or enamel surface cavities (regardless of size.) The results were statistically analyzed. 2 Results Table l fluoride group and the control group, the change ① enamel demineralization compared with control group P <0,05, according to Table 1 shows that Group 2 statistically significant differences (P <0,05), the control group in 1, 2 degrees of tooth demineralization few more, and 3 demineralization has four, not three fluoride groups demineralization. 3 Discussion with fixed appliance, the patients ability to decreased self-cleaning teeth, food residues, debris easy to stay, easy to clean, El cavity micro-ecological environment changes, making it easier to gather plaque around the teeth in the brackets enamel surface, the number and proportion of cariogenic bacteria increased metabolic acid production; the same time as the use of etching agents are easier to enamel demineralization. Etching agent added to 20ml / L sodium fluoride, fluoride into the enamel, the fluoride ion displacement of the hydroxyl groups of hydroxyapatite to generate the acid insoluble fluorapatite, so as to achieve the role of resistance to enamel demineralization. The use of fluoride acid solution, on the one hand to prevent enamel demineralization, other than the use of other fluoride products, such as fluoride coating easier. Etching and coating it can make a complete, reduced the chair side time physician, a clinically simple and easy method of demineralization.
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