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BACKGROUND AND AIM In recent years, fixed lingual retainers have been gaining importance in relapse prevention. The aim of this prospective, randomized study was to compare different types of fixed retainers used for stabilization of the lower anterior segment with respect to detachment rate, relapse, periodontal and oral hygiene problems, as well as(More)
Within the scope of a follow-up examination, the speech development of 2 different groups of children with trisomy 21 was compared. The patient group (n = 20) was treated with a Castillo-Morales stimulating plate in early childhood (average treatment time = 10.8 months, average age at follow-up examination: 55 months). The control group (average age 47.4(More)
The present study is divided into 2 parts: The first explains the concept of stimulating plate therapy at the Muenster Clinic and the second presents a longitudinal study of mouth and tongue posture in trisomy 21 children treated with this concept. 47 children underwent a pre-treatment examination (Rec1), and 38 attended a first follow-up examination (Rec2)(More)
BACKGROUND The present study is the first instance of patients having been questioned on the criteria applied in their decision for therapy with lingual brackets and on the sources of information available to them within the framework of an international comparison prior to the start of therapy by means of a standardized questionnaire. PATIENTS AND METHOD(More)
The aim of this prospective study was to compare for the first time the influences of lingual appliances of different dimensions on sound performance and oral comfort. The study group comprised 12 subjects (10 women, 2 men; mean age, 33.96 years). Their sound production was recorded by means of a digital audio tape recorder before, 10 minutes after, and 24(More)
Using a standardized questionnaire, 41 patients (12 men, 29 women; mean age 31.5 +/- 12.1 years) were interviewed prospectively on their subjective oral comfort, various oral functions, and professional qualification before indirect application of lingual brackets (T0), within 24 h of application (T1), and three months later (+/- 1 week) (T2). In 22 of the(More)
The introduction of digital X-ray techniques offered a variety of new possibilities for digital image enhancement and exposure reduction. In order to compare the reproducibility of cephalometric landmarks on conventional and digital lateral headfilms 100 digital and 100 conventional lateral headfilms of patients attending our clinic were randomly selected.(More)
The University of North Carolina at Chapel Hill has established an extensive randomized trial to evaluate early treatment of Class-II/1 cases. As presented in this part of the study, a German treatment group was selected in parallel, based on identical prospective criteria, in the context of international cooperation with the Westfälische(More)
Esthetically appealing, externally invisible, lingually applied orthodontic brackets are in increasing demand. Because the brackets are placed lingually, however, they appear to cause some problems with respect to speech. This study is the first to present a prospective evaluation of the articulation of 23 patients with lingual brackets by means of an(More)
BACKGROUND AND AIM The assessment of correlations between orthopedic and orthodontic data based on interdisciplinary studies is of scientific and practical interest in the differentiation of preventive diagnostic and therapeutic fields between orthodontics and orthopedics. In the published literature there are various studies analyzing the correlations(More)