BACKGROUND This case report discusses the unusual presentation of limited mouth opening as a result of bilateral coronoid process hyperplasia. CASE PRESENTATION A 14.5-year-old male patient of white Caucasian ethnicity presented with limited mouth opening, mandibular asymmetry, and dental crowding. Investigations confirmed bilateral coronoid process hyperplasia and management involved bilater...

OBJECTIVE To assess rotation and translation movements of the mandible at maximum mouth opening in a group of patients successfully rehabilitated after condylar fractures. MATERIALS AND METHODS Using a three-dimensional motion analyser, free movements of mouth opening were recorded in nine patients, and divided into their rotation and gliding components. Surface electromyography (EMG) of the ...

This study evaluated the effectiveness of interferential current stimulation (ICS) to decrease recurrent jaw pain and to increase maximum vertical jaw opening. Forty subjects with either a history of recurrent jaw pain of three months' duration or of constant, chronic jaw pain that recurred within the preceding two months participated in the study. Twenty subjects received three 20-minute treat...

Condylar fractures are the second most-common fractures of the mandible. The purpose of this study was to compare the surgical (open reduction+internal fixation) and nonsurgical (closed reduction+immobilization) treatment of mandibular condylar fracture in terms of occlusion and maximum mouth opening(inter-incisal distance of the jaws) after these two procedures. The study followed a prospectiv...

BACKGROUND Analyze the stress status of temporal-mandibular joint (TMJ) of a healthy volunteer under the overlarge jaw opening status through the finite element method, with the purpose of clarifying the loading features of each structure in the joint area, and achieving further understanding of the pathogenesis of the temporomandibular disorders (TMD). METHODS Collect the CBCT and MRI data o...

This study examines some intonational and rhythmical aspects of speech and their interactions. The intonational analysis framework is the ToBi system; the rhythmical analysis framework is based on patterns of jaw opening acoustically reflected by F2-F1 changes. According to recent studies on American English, contrastively emphasized mono-syllabic words, regardless of vowel height, have larger ...

PURPOSE The present investigation evaluated the relation between the dynamic properties of the bilateral condyle in habitual maximum opening and closing movement and the occlusal force balance with clenching force. METHODS Nine normal adults participated in this study. The translation of bilateral condyle and the rotation of intercondylar axis in habitual maximum opening and closing movement ...

AIM Urethral pressure reflectometry (UPR) is a new method for measuring pressure and cross-sectional area in the urethra. Our aim was to investigate if the UPR parameters at rest and during squeeze were unchanged after TVT. METHODS The technique enables measurement along the entire length of the urethra simultaneously and avoids the common artefacts encountered with conventional catheters. Tw...

PURPOSE The purpose of this study was to determine the average facial proportions and mandibular movement capacity of 316 first-year dental students who carefully recorded them on each other. MATERIALS AND METHODS This early exacting clinical experience was closely supervised by the authors in Columbus, Ohio during 1969-70. Five vertical and six horizontal distances were measured on each subj...