1,721,032 research outputs found
Functional Balancing Factor (FBF) as a reference point to better understand the occlusal mechanisms
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Relation between cervical posture on lateral skull radiographs and electromyographic activity of masticatory muscles in caucasian adult women: a cross-sectional study
No full textFriction between archwires of different sizes,cross-section and alloy and brackets ligated with low-friction or conventionalligatures.
No full textAn electromyographic evaluation of bilateral symmetry of masticatory, neck and trunk muscles activity in patients wearing a positioner
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Electromyographic activity of masticatory, neck and trunk muscles of subjects with different skeletal facial morphology--a cross-sectional evaluation
No full textPrevalence and distribution by gender of occlusal characteristics in a sample of Italian secondary school students: a cross-sectional study
No full textThe aim of this study was to describe the prevalence and distribution, by gender, of occlusal
traits in a sample of Italian students aged 11–14 years (mean 13 ± 1 years). Using standardized and
validated recording criteria, a single operator measured the overjet, overbite, open bite, anterior and
posterior crossbites, crowding, coincidence of the upper and lower midlines, and diastema, in 810
secondary school students (53.6 per cent males). Chi-square, t-test statistics, and odds ratios (ORs)
with 95 per cent confi dence intervals (CI) were used to investigate the relationship between gender and
malocclusion characteristic. Logistic regression was used to further analyse the independent association
between gender and each outcome measure.
Ninety-three per cent of the subjects showed at least one occlusal trait, with one or two anomalies
recorded in 63 per cent of children. The prevalence of occlusal traits ranged from 1.1 (negative overjet)
to 54 per cent (upper and lower midlines not coincident). Males were more likely than females to show
both an increased overbite and an increased overjet, although the latter result was not confi rmed by
logistic regression (P = 0.05). Multivariate analysis showed a negative association between overbite and
misalignment of the lower incisors and lack of coincidence of the upper and lower midlines, whereas
subjects with an increased overbite were more likely to have an increased overjet (all P < 0.01). Further
studies are required in order to further clarify these fi ndings and to provide accurate estimates of the
orthodontic treatment need in Italian adolescents
Enamel surface after debracketing of orthodontic brackets bonded with flowable orthodontic composite. A comparison with a traditional orthodontic composite resin.
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