1,721,010 research outputs found
Hemifacial microsomia treated by total joint reconstruction (TJR) and orthognathic surgery: all-in-one approach
No full textAnatomic relationship between trigeminal nerve and temporomandibular joint
No full textTemporomandibular joint disorders (TMD) is a collective term used to describe pathologic conditions involving temporomandibular joint (TMJ), masticatory muscles and associated structures. Common related complaints include local pain, limited mouth opening and TMJ noises whereas symptoms often associated to TMD with debated pathogenesis enclose earache, headaches, tinnitus and trigeminal-like symptoms such as atypical orofacial pain. In particular, TMD trigeminal associated symptoms are intricate, difficult to treat and exert a great impact on everyday life of the patients thus invoking a complex multidisciplinary treatment. In this paper, the authors analyze the anatomic and topographic relationships between the mandibular branch of the trigeminal nerve and the medial aspect of the TMJ capsule in 8 fresh adult cadavers thus resuming a pathologic relationship between atypical trigeminal symptoms and TMD
Orbital trauma with eyeball injuries; diagnostic strategy and combine surgical-prosthetic reconstructive treatment
No full textThe timing for the treatment of orbital fracture addresses to the immediate reduction and fixation whenever possible. Sometimes treatment can be delayed because of patient general conditions or associated other injuries. In these cases bone consolidation occurs in the wrong position. As a consequence both aesthetic and functional impaired healing can occur. The most common complaint in patients presenting this pathologic healing is the alteration of the visual field consisting in strabismus, diplopia. On the aesthetic side, we can observe orbital dystopia both on the frontal plane and sagittal plane. Enophtalmus or exophtalmus are very frequent clinical features of these patients. When direct injuries to the eyeball occur these can be responsible for impairment of view or eyeball size and fatally loss. The most common complaint in patients presenting this pathologic healing is the alteration of the visual field consisting in strabismus, diplopia. On the aesthetic side, we can observe orbital distopia both on the frontal plane and sagittal plane. Enophtalmus or exophtalmus are very frequent clinical features of these patients
Orbital volume after Le Fort III advancement in craniosynostosis
No full textThere are no quantitative standards for the volumetric measurements of the orbit after Le Fort III advancement. CT Scan images have given the opportunity to compare with accuracy the real anatomical changes, thus the functional improvements, resulted after a surgical treatment. Pre-operative (T0) and post-operative (T1: 6 months after surgery) 3D craniofacial CT scans of the subjects were collected and retrospectively analysed. Image segmentation of the anatomic structures of interest and the 3D graphic rendering were done by using the Dolphin Imaging Plus (TM) 11.0 software. This study showed that the orbital advancement in Caucasian subjects after Le Fort III advancement was significant and produced a critical augmentation of the orbital volume and correction of the ocular bulb proptosis
Security Hi-tech Individual Extra-Light Device Mask: A new protection for [soccer] players
No full textAmong professional [soccer] players, a relevant incidence of maxillofacial trauma has been reported. The main challenge in these particular patients is to give them the possibility of a very short convalescence period and to make possible their agonistic activity as soon as possible. The authors here present an innovative technique to realize this-the Security Hi-tech Individual Extra-Light Device Mask, a customizable protective shield based on the player's face cast. A completely customized mask was forged over the player's face cast to protect the injured area. This mask shortens convalescence period, and due to its realization, it is comfortable and easy fitting, thus allowing the player to perform at a professional level in his sport activity in the shortest time possible
Functional outcomes in bilateral temporomandibular joint ankylosis treated with stock prosthesis
No full textThe purpose of this study was to evaluate the functional outcomes in patients affected by bilateral temporomandibular joint (TMJ) ankylosis treated with TMJ total alloplastic reconstruction with stock prosthesis. As a matter of fact, ankylosis of the TMJ may produce the narrowing of the oropharyngeal airway space resulting in the obstructive sleep apnea syndrome, a pathological condition characterized by repetitive upper airway obstructions during sleep, resulting in arousal from sleep, sleep fragmentation, arterial oxygen desaturation. and daytime hypersomnolence. Clinical results demonstrate that total TMJ reconstruction with prosthesis is the surgical modality of choice to obtain the counterclockwise rotation and the advancement of the max-illomandibular complex, which significantly increase the volume of the oropharyngeal airway space in this kind of patients
Our experience with piezosurgery
No full textPiezosurgery is an ultrasound device, which has been employing since 1988 for bone cutting procedures. Piezoelettric bone surgery is associated with several advantages; soft tissue protection, optimal visibility in the surgical field, decreased blood loss, less vibration and noise, protection of tooth structure. We wanted to highlight hownoble structures, such as nerves and arteries, are preserved by this device. Piezosurgery's scope is becoming more and more wide, including oral and maxillofacial surgery, otorhinolaryngology, neurosurgery, ophthalmology, traumatology and orthopaedics. We extended its use to craniofacial paediatric malformations, orthognatic surgery, TMJ surgery and oncology, observing shortening of the post-operative swelling. There is more comfort for the patients. In conclusion, piezosurgery represents a promising device, which is widening its field of application in bone surgery
Captain America shield genioplasty
Full text linkThe chin represents one of the most important determi- nants of the facial aesthetics. Like many aesthetic parameters, the ‘‘ideal’’ chin has changed in history regarding projection and prominence. From the Renaissance’ retrusive profiles, stronger and more defined mandibular contour are nowadays desired both by masculine and feminine population.
This change in the ideal references plays an important role in diagnosis and treatment planning. Various techniques for chin augmentation have been described, using both alloplastic materials and osteotomies.
An interesting osteotomy variant, so-called chin shield osteot- omy, has been described by Triaca et al to avoid a deep mentolabial fold. The authors describe herein the use of a shield plate, very similar in his form to the Captain America’ shield, that can at the same time provide bone fixation and soft tissues sustain in the mentolabial fold region, preventing the invasion of the gap between the bone fragments by the connective tissue, as it happens in a Guided Bone Regeneration procedure
Interleukine-6 (IL-6) may be a link between myasthenia gravis and myoepithelioma of the parotid gland
No full textMyoepithelioma is a rare benign neoplasm of the salivary glands occurring more frequently in the parotids. Myasthenia gravis (MG) is a chronic, T-cell dependent, antibody and complement-mediated autoimmune neuromuscular transmission disorder. Interleukine-6 (IL-6) is an immune protein belonging to the family of the hematopoietins, liberated in response to infection, burns, trauma, and neoplastic diseases. It seems that an overproduction of IL-6 might play an important role in the pathophysiotogy of MG. Moreover, it has been discussed the possible role of IL-6 as a modulating factor either in proliferation or in differentiation of pleomorphic adenoma cell line into myoepithelioma. The authors present a rare case of parotid myoepithelioma occurred in a patient affected by myasthenia gravis and suppose a possible IL-6 mediated relationship between myasthenia gravis and parotid myoepithelioma. (c) 2006 Elsevier Ltd. All rights reserved
Treatment of unilateral condylar hyperplasia with proportional condylectomy and orthodontic aligners
No full textUnilateral condylar hyperplasia (UCH) is characterized by excessive growth of one mandibular condyle compared with the contralateral condyle. Affected patients develop facial asymmetry, often accompanied by occlusal discrepancies and disorders of the TMJ. Although the eti- ology of UCH is still unknown, some authors have hypothesized endocrine disorders, metabolic hyperactivity, trauma, arthrosis, and genetic causes as possibilitie
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