Neuromuscular evaluation in young patients with unilateral posterior crossbite before and after rapid maxillary expansion.
نویسندگان
چکیده
OBJECTIVES The aim of this study is to analyze the electromyographic and electrognatographic exams of 55 patients before and after rapid palatal expansion, and to find out a relationship between the results. MATERIALS AND METHODS The sample consisted of 55 children (28 females and 27 males; age ranging between 6 and10 years) with unilateral posterior crossbite, and subjected to an electromyographic and electrognatographic examination before and after a rapid palatal expansion. RESULTS By analyzing the results, it is possible to observe an increased electrical activity of the masticatory muscles (right and left masseters and anterior temporalis) both in rest position and during activities after rapid palatal expansion. CONCLUSIONS Rapid palatal expansion produces important changes in the muscular tone and it increases the muscular activity of the masticatory muscles.
منابع مشابه
Long-term stability of unilateral posterior crossbite correction.
OBJECTIVE To evaluate the stability of orthodontically corrected unilateral posterior crossbite in patients treated either by rapid maxillary expansion or with slow expansion devices in the early (mean age 7.2 years, n = 50) or late mixed dentition (mean age 9.9 years, n = 50). MATERIALS AND METHODS The observation periods were approximately 8 years for the early treatment groups and 6.5 year...
متن کاملLongitudinal stability of rapid and slow maxillary expansion
OBJECTIVE The aim of this retrospective study was to compare the longitudinal stability of two types of posterior crossbite correction: rapid maxillary expansion (RME) and slow maxillary expansion (SME). METHODS Study casts of 90 adolescent patients were assessed for interdental width changes at three different periods: pretreatment (T1), post-treatment (T2) and at least, five years post-rete...
متن کاملAsymmetric maxillary expansion (AMEX) appliance for treatment of true unilateral posterior crossbite.
The aim of this study was to evaluate the effects of an asymmetrical maxillary expansion (AMEX) appliance. Patients with true unilateral posterior crossbites were included in the study. The treatment group consisted of 18 patients who had a mean age of 14 +/- 2.3 years. Treatment effects were evaluated on posteroanterior radiographs, dental casts, and photographs of the dental casts. All unilat...
متن کاملChanges in the masticatory cycle following treatment of posterior unilateral crossbite in children.
In a previous study, we established that young children with unilateral posterior crossbite have a longer mandibular ramus and more superiorly and posteriorly positioned condyles on the crossbite side. In this study, we evaluated chewing cycle shape and duration in 14 of the patients before treatment, and we looked for changes in cycle shape and duration 6 months after treatment with rapid pala...
متن کاملUnilateral cross bite treated by corticotomy-assisted expansion: two case reports
BACKGROUND True unilateral posterior crossbite in adults is a challenging malocclusion to treat. Conventional expansion methods are expected to have some shortcomings. The aim of this paper is to introduce a new technique for treating unilateral posterior crossbite in adults, namely, corticotomy-assisted expansion (CAE) applied on two adult patients: one with a true unilateral crossbite and the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Stomatologija
دوره 17 3 شماره
صفحات -
تاریخ انتشار 2015