Effects of modified and conventional facemask therapies with expansion on dynamic measurement of natural head position in Class III patients

Introduction: The aim of this prospective clinical trial was to assess the effects of varying force directions on the
dynamic measurement of natural head position and orofacial airway dimensions of Class III patients during maxillary
orthopedic protraction compared with an untreated control group. Methods: The conventional facemask
group comprised 15 patients (8 girls, 7 boys; mean age, 9.6 6 1.3 years), the modified facemask group comprised
15 patients (7 girls, 8 boys; mean age, 9.5 6 1.5 years), and the control group comprised 15 subjects
(7 girls, 8 boys; mean age, 9.8 6 1.6 years). Natural head position measurements and cephalometric records
were obtained from all subjects before and after treatment or the control period (approximately 1 year). An inclinometer
and a portable data logger were used to collect the dynamic natural head position data. For statistical
comparisons, paired samples t tests, analysis of variance (ANOVA), and post-hoc Tukey tests were used at the
P\0.05 level. Results: Both treatment groups showed statistically significant changes in the sagittal (pitch)
measurements of natural head position and upper pharynx, aerial, and total area of airway measurements during
the treatment period. In the control group, the only statistically significant change was an increased upper
pharynx measurement (P 5 0.020). According to the intergroup comparisons, statistically significant natural
head position differences were found in the conventional (6.4 flexion) and the modified (5.7 flexion) facemask
groups when compared with the controls. The modified facemask group also showed significant changes in aerial
(P 5 0.003) and total (P\0.001) areas of the airway measurements compared with the control group. No
statistically significant differences were observed between the 2 treatment groups. Conclusions: These findings
suggest that modified and conventional facemask therapy with expansion have significant cranial flexion
effects on the dynamic measurements of natural head position. Additionally, the modified facemask procedure
showed significant effects on the orofacial airway dimensions compared with the initial values and the values of
the untreated controls.

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Detaylı Görünüm
Eser Adı
(dc.title)
Effects of modified and conventional facemask therapies with expansion on dynamic measurement of natural head position in Class III patients
Eser Sahibi
(dc.contributor.author)
TANCAN UYSAL
Yayın Tarihi
(dc.date.issued)
2011
Diğer Yazarlar
(dc.contributor.authors)
AHMET YAĞCI
Diğer Yazarlar
(dc.contributor.authors)
SERDAR ÜŞÜMEZ
Diğer Yazarlar
(dc.contributor.authors)
METİN ORHAN
Yayıncı
(dc.publisher)
American Journal of Orthodontics and Dentofacial Orthopedics
Tür
(dc.type)
Makale
Özet
(dc.description.abstract)
Introduction: The aim of this prospective clinical trial was to assess the effects of varying force directions on the dynamic measurement of natural head position and orofacial airway dimensions of Class III patients during maxillary orthopedic protraction compared with an untreated control group. Methods: The conventional facemask group comprised 15 patients (8 girls, 7 boys; mean age, 9.6 6 1.3 years), the modified facemask group comprised 15 patients (7 girls, 8 boys; mean age, 9.5 6 1.5 years), and the control group comprised 15 subjects (7 girls, 8 boys; mean age, 9.8 6 1.6 years). Natural head position measurements and cephalometric records were obtained from all subjects before and after treatment or the control period (approximately 1 year). An inclinometer and a portable data logger were used to collect the dynamic natural head position data. For statistical comparisons, paired samples t tests, analysis of variance (ANOVA), and post-hoc Tukey tests were used at the P\0.05 level. Results: Both treatment groups showed statistically significant changes in the sagittal (pitch) measurements of natural head position and upper pharynx, aerial, and total area of airway measurements during the treatment period. In the control group, the only statistically significant change was an increased upper pharynx measurement (P 5 0.020). According to the intergroup comparisons, statistically significant natural head position differences were found in the conventional (6.4 flexion) and the modified (5.7 flexion) facemask groups when compared with the controls. The modified facemask group also showed significant changes in aerial (P 5 0.003) and total (P\0.001) areas of the airway measurements compared with the control group. No statistically significant differences were observed between the 2 treatment groups. Conclusions: These findings suggest that modified and conventional facemask therapy with expansion have significant cranial flexion effects on the dynamic measurements of natural head position. Additionally, the modified facemask procedure showed significant effects on the orofacial airway dimensions compared with the initial values and the values of the untreated controls.
Kayıt Giriş Tarihi
(dc.date.accessioned)
17.06.2014
Açık Erişim Tarihi
(dc.date.available)
2014-06-17
Yayın Dili
(dc.language.iso)
eng
Konu Başlıkları
(dc.subject)
Natural head position
Konu Başlıkları
(dc.subject)
Conventional facemask therapies
Atıf için Künye
(dc.identifier.citation)
Yagci, A., Uysal, T., Usumez, S., Orhan, M. (2011). Effects of modified and conventional facemask therapies with expansion on dynamic measurement of natural head position in Class III patients. Ajo-Do, 140 (5), 223-31. doi: 10.1016/j.ajodo.2011.05.018.
ISSN
(dc.identifier.issn)
0889-5406
Yayının ilk sayfa sayısı
(dc.identifier.startpage)
223
Yayının son sayfa sayısı
(dc.identifier.endpage)
231
Dergi Sayısı
(dc.identifier.issue)
5
Dergi Cilt
(dc.identifier.volume)
140
DOI Numarası
(dc.identifier.doi)
10.1016/j.ajodo.2011.05.018
Haklar
(dc.rights)
Open access
Tek Biçim Adres
(dc.identifier.uri)
Http://hdl.handle.net/11469/177
Analizler
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Erişilen ülkeler
Erişilen şehirler
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.

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