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  • Three-dimensional assessment of back symmetry in subjects with unilateral functional crossbite during the pre-pubertal growth phase : a controlled study
    Primožič, Jasna ...
    Background/Objectives: Since a high prevalence of back anomalies has been reported among subjects with crossbite, the aim was to assess the degree of back symmetry among subjects with (crossbite) and ... without (control) unilateral functional crossbite during the pre-pubertal growth phase. Methods: A group of 70 subjects (36 boys, 34 girls; 6.8 +- 1.2 years) in the primary or mixed dentition phase were included. Clinical assessment of head posture, shoulder, scapula and hip height were performed with the subject standing, and differences between the left and right side greater than 5 mm recorded. Asymmetry of the scapula and trunk prominence greater than 8 mm was recorded along with the prominence of thoracic and lumbar paravertebral musculature during the forward- bending test. Back symmetry was assessed qualitatively and quantitatively on colour deviation maps of superimposed mirrored three-dimensional back scans at a tolerance level of 2 mm. Results: No significant differences were observed between the groups regarding the frequency of clinically assessed back anomalies. The percentage of back symmetry was slightly lower in the crossbite than that in the control group (71.4 +- 13.3% and 79.2 +- 12.1%, respectively). A significant association ( P < 0.05) was seen between scapula plane inclination (OR = 3.41) and scapula prominence inequalities (OR = 3.29) and unilateral functional crossbite, while hip height inequalities (OR = 0.94) were more frequent in the control group. No associations were detected between the side of crossbite and side of prominence of back parameters. Limitations: The use of different thresholds for clinical (5-8 mm) and three-dimensional (2 mm) symmetry assessment. Conclusions: Although some degree of back asymmetry was detected in the crossbite group during the pre-pubertal growth phase, this asymmetry does not appear to be clinically relevant.
    Vir: European journal of orthodontics. - ISSN 0141-5387 (Vol. 41, iss. 3, May 2019, str. 250-257)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2019
    Jezik - angleški
    COBISS.SI-ID - 33949657

vir: European journal of orthodontics. - ISSN 0141-5387 (Vol. 41, iss. 3, May 2019, str. 250-257)
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