Aim: The present study aimed to evaluate the cephalometric effects of a headgear anchored to the deciduous second molars in the early mixed dentition. Materials and methods: Study design: The study followed a retrospective longitudinal design and enrolled 31 consecutive patients (17 females and 14 males) treated with high pull (HP) headgear anchored to the deciduous second molars, average age 8y 5m± 5m at pre-treatment time (T0) and 9y 8m± 6m at post-treatment time (T1). All the patients wore the headgear for approximately 8-10 hours at night, with a force of 250 g per side. The active phase of treatment ended once patients obtained a distal step on permanent molars of at least 2 mm. Lateral cephalograms at T0 and T1 were taken; 10 angular measurements were chosen as variables of the study. The paired sample t-test was employed to assess the significance of the differences of each variable between T0 and T1. Results and conclusion: In this group of Class II patients, HP headgear anchored to the deciduous second molars in the early mixed dentition produced: significant reduction of SNA angle, significant increase of SN/NL angle with no significant change in SN/ML angle, significant labial flaring of upper incisors. As clinically evaluated, the correction of the Class II occlusal relationship and the anterior crowding of maxillary arch were also accomplished.

Cephalometric changes after headgear anchored to the deciduous second molars in the early mixed dentition / A. Caprioglio, T. Grassi, P. Lorusso, R. Fastuca, P. Lucchi, M. Rosa. - In: EUROPEAN JOURNAL OF PAEDIATRIC DENTISTRY. - ISSN 1591-996X. - 18:1(2017 Mar), pp. 32-36. [10.23804/ejpd.2017.18.01.07]

Cephalometric changes after headgear anchored to the deciduous second molars in the early mixed dentition

A. Caprioglio;
2017-03

Abstract

Aim: The present study aimed to evaluate the cephalometric effects of a headgear anchored to the deciduous second molars in the early mixed dentition. Materials and methods: Study design: The study followed a retrospective longitudinal design and enrolled 31 consecutive patients (17 females and 14 males) treated with high pull (HP) headgear anchored to the deciduous second molars, average age 8y 5m± 5m at pre-treatment time (T0) and 9y 8m± 6m at post-treatment time (T1). All the patients wore the headgear for approximately 8-10 hours at night, with a force of 250 g per side. The active phase of treatment ended once patients obtained a distal step on permanent molars of at least 2 mm. Lateral cephalograms at T0 and T1 were taken; 10 angular measurements were chosen as variables of the study. The paired sample t-test was employed to assess the significance of the differences of each variable between T0 and T1. Results and conclusion: In this group of Class II patients, HP headgear anchored to the deciduous second molars in the early mixed dentition produced: significant reduction of SNA angle, significant increase of SN/NL angle with no significant change in SN/ML angle, significant labial flaring of upper incisors. As clinically evaluated, the correction of the Class II occlusal relationship and the anterior crowding of maxillary arch were also accomplished.
Child; Dentition, Mixed; Female; Humans; Longitudinal Studies; Male; Malocclusion, Angle Class II; Retrospective Studies; Tooth, Deciduous; Treatment Outcome; Cephalometry; Extraoral Traction Appliances; Molar
Settore MED/28 - Malattie Odontostomatologiche
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/791155
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