introduction: a keratocystic odontogenic tumor is a benign intra-bone mass originating from dental lamina or its residue. it represents 2–11% of jaw cysts, and has a slow but aggressive growth. the evaluation of molecular characteristics, immunohistochemistry, and genetic expression currently have no established classification regarding the evolution and pathophysiologic pattern of these lesion...

Acoustic and articulatory measurements were made of utterances containing seven syllables using the vowel /aI/ with varying degrees of prominence, including contrastive emphasis/focus. A trained phonetician judged the amount of prominence for each of the seven syllables. The findings show a significant correlation between amount of jaw opening for each of the target syllables and perceived prom...

Golden pompano Trachinotus ovatus larvae were kept at 26, 29 and 33 °C for 15 days from 3-day post hatching (DPH) to 18 DPH to test temperature-dependent growth and jaw malformation. The growth, survival, jaw deformity and the gene expressions of bone morphogenetic proteins (BMPs) were used as criteria to examine the fish response to temperature manipulation. The growth rate of fish at 29 or 33...

Studies in the literature show that jaw and neck regions are linked anatomically, biomechanically and neurologically. Voluntary clenching has been shown to improve muscle strength and performance of various motor tasks. Information from the neck sensory-motor system is reported to be important for posture. Hence it is reasonable to believe that activation of the jaw sensory-motor system has the...

The vocalizations and jaw kinematics of 30 infants aged 6-8 months were recorded using a Motion Analysis System and audiovisual technologies. This study represents the first attempt to determine the effect of play environment on infants' rate of vocalization and jaw movement. Four play conditions were compared: watching videos, social contingent reinforcement and vocal modeling with an adult, p...

The investigation of form-function relationships requires a detailed understanding of anatomical systems. Here we document the 3-dimensional morphology of the cranial musculoskeletal anatomy in the Australian Laughing Kookaburra Dacelo novaeguineae, with a focus upon the geometry and attachments of the jaw muscles in this species. The head of a deceased specimen was CT scanned, and an accurate ...

The developmental course of early chewing has rarely been studied, although such knowledge is essential for understanding childhood feeding and swallowing disorders. The goal of this investigation was to quantitatively describe age- and consistency-related changes in jaw kinematics during early chewing development. An optical-motion tracking system was used to record jaw movements during chewin...

The association between cervical spine disorders (CSD) and temporomandibular disorders (TMD) has been extensively investigated. However, no studies investigating the relationship between the level of jaw disability and neck disability have been published. Therefore, the objective of this study was to determine whether there was a relationship between neck disability measured using the neck disa...

Bone is important to give the body support, but it also contains marrow that harbors mesenchymal stem cells and hematopoietic progenitors. An important chemoattractant for hematopoietic cell homing towards the bone marrow, CXCL12, was shown to inhibit expression of apoptosis related genes. Previously, it was shown that jaw osteoclast precursors express more anti-apoptotic genes than long bone o...

In order to explore the articulatory nature of contrastive emphasis, this study compares contrastively emphasized and non-emphasized syllables in terms of mandible position and F0 peaks. The stimuli were English mono-syllabic words with /aɪ/, spoken in short utterances as part of read dialogues. Articulatory and acoustic data obtained by the University of Wisconsin x-ray microbeam facilities fr...