Rabbit calvarial and mandibular critical-sized bone defects as an experimental model for the evaluation of craniofacial bone tissue regeneration.

Introduction: Many studies have aimed to investigate the regeneration potential of bone substitutes through animal models at different defect sites, where the bone healing mechanism varies due to developmental, structural and functional differences. This study aims to develop a rabbit model with two functionally different (non-load-bearing calvarias and load-bearing mandibular) critical-sized defects (CSD) in one rabbit.

Material & Method: The comparison of the "gold standard" autograft to a sham (no graft) control was undertaken in order to validate this model; at the same time, a 3D-printed biphasic calcium phosphate scaffold was implanted to test its utility in the evaluation of new bone substitute materials.

Ectopic third mandibular molar: evaluation of surgical practices and meta-analysis.

Objectives: To identify the preferred surgical approach (intra- or extra-oral) to remove an ectopic third mandibular molar (ETMM) according on its location and presence of an associated cyst or cutaneous fistula, and to determine the indications for a graft or osteosynthesis.

Materials And Methods: A surgical practice questionnaire was distributed to oral and maxillo-facial surgeons attending a National Congress of the French Society of Stomatology, Maxillo-facial and Oral Surgery. A systematic review of the literature and meta-analysis was carried on Pubmed, Cochrane, Embase and ScienceDirect databases using the MeSH terms: "Ectopic teeth", "Third molar", "Mandibular".

Orbitofrontal Reconstruction With a Three-Dimensional Titanium Patient-Specific Implant After Intraosseous Haemangioma Resection.

Background: Intraosseous hemangiomas are rare benign tumors that can develop in the skull. Orbitofrontal localization is uncommon. The complexity of orbitofrontal anatomy results in difficult reconstruction following trauma or tumoral resection.

Surgical approach of ectopic maxillary third molar avulsion: Systematic review and meta-analysis.

Ectopic maxillary third molars (EMTM) are extracted mainly by the Caldwell-Luc technique but also by nasal endoscopy. There is currently no consensus on the treatment of this eruption and its management is heterogeneous and multidisciplinary. Two literature searches were performed with no time restrictions via Pubmed.

Arthrogryposis multiplex congenita and limitation of mouth opening: Presentation of a case and review of the literature.

Arthrogryposis multiplex congenita (AMC) is a rare entity gathering many diseases, isolated or included in more global syndromes. It affects symmetrically joints of lower limbs, back and maxillofacial area with temporomandibular joint (TMJ) impairment leading to deterioration of oral functions and mouth opening resulting in poor quality of life. Therapeutic strategy varies according to type and severity of impairment and could involve physical therapy and/or surgery.

Virtual surgical planning and three-dimensional printing for the treatment of comminuted zygomaticomaxillary complex fracture.

Objective: the objective of the study is to evaluate the interest of advanced computer technology, including virtual surgical planning, three-dimensional modeling and pre-bended titanium plate and mesh in the treatment of comminuted zygomaticomaxillary complex fractures.

Material And Methods: A total of 19 patients were included. In the study group (n=6) surgery was combined with preoperative planning including mirroring and bending of the titanium plates and mesh on a 3D model.

Virtual Surgery Planning and Three-Dimensional Printing Template for Osteotomy of the Zygoma to Correct Untreated Zygomaticomaxillary Complex Fracture.

Untreated zygomaticomaxillary complex fractures may lead to aesthetical and functional sequelae needing secondary surgical correction. A 31-year-old male was addressed to our department for right enophthalmos and loss of cheek projection 3 months after facial trauma. Restauration of facial symmetry can be achieved by repositioning of the zygomaticomaxillary complex by osteotomies.

Extracorporeal septorhinoplasty: Technical note.

Severe nasal septal deformities can be responsible for functional and aesthetic impairments. Correction of these deformities can be difficult and restoring perfect nasal shape and function is still challenging. Classical techniques can, sometimes, lead to disappointing results or relapse.

Efficacy of pentoxifylline-tocopherol-clodronate in mandibular osteoradionecrosis.

Objectives/hypothesis: PENTOCLO treatment, associating pentoxifylline, tocopherol, and clodronate, resolves radiation-induced fibrosis. The main aim of the present study was to prospectively assess efficacy in mandibular osteoradionecrosis (ORN).

Study Design: Prospective cohort study.

Mandible extensive intra osseous destructive lesion, a diagnostic challenge.

Intraosseous verrucous carcinoma of the mandible is a rare situation often confused with chronic osteomyelitis. Despite the low aggressively of the tumor, prognosis is poor because of delayed diagnosis. We report 3 cases, from three different hospitals, initially diagnosed with a chronic osteomyelitis of the mandible after wisdom extraction.

Impairments in Food Oral Processing in Patients Treated for Tongue Cancer.

Patients surgically treated for oral cancer are affected by several underestimated deglutition disorders risk factors. This study aims to characterize the level of these food oral processing (FOP) impairments in a group of patients treated by surgery for tongue cancer. Twenty-seven consecutive patients surgically treated for tongue cancer were evaluated concerning their chewing capacity (Mastication-test), and responded to questions concerning their capacity to bite, chew and manipulate food with their tongue, and their quality of life.

Reconstruction of a Large Posttraumatic Mandibular Defect Using Bone Tissue Engineering With Fresh-Frozen Humeral Allograft Seeded With Autologous Bone Marrow Aspirate and Vascularized With a Radial Forearm Flap.

Introduction: Currently, vascularized autologous bone transplantation is considered the gold standard for large mandibular continuity defect reconstruction. Donor site morbidity is a major concern. Therefore, bone tissue engineering (BTE) seems to be the ideal solution.

A new flap combination for reconstruction of lower nasal dorsum and supra-tip skin defects.

Repairing surgical defects of the nose is still challenging due to its tridimensional shape and its aesthetic concern. Difficulty in reconstructing nasal subunits lies in their contour, skin texture and limited availability of adjacent skin. For lower nasal dorsum and supra-tip regions, we design a new combined local flap as existing local flaps may give disappointing results.

Unilateral Condylar Hyperplasia: Is Reactivation After a Long Latency Period of Inactivity Plausible?

Unilateral condylar hyperplasia (UCH) is characterized by an overgrowth of the mandibular condyle responsible for a facial and dental asymmetry associated with temporomandibular joint function and maxillary growth consequences. The diagnosis is based on a body of clinical, radiological and histological arguments. A 38 years old woman with a reactivation of UCH after a latency period of 16 years following an orthognathic surgery performed for facial asymmetry normalization is presented.

Are routine microbiological samplings in acute dental infections justified? Our 10-year real-life experience.

Purpose: Most patients with severe odontogenic infections are successfully treated with large spectrum probabilistic antibioc therapy, drainage of the collections and tooth treatment or extraction and are discharged home before antibiotic sensitivity results were available. The investigators hypothesized whether bacteriological sampling should be systematically performed in the management of patients with severe odontogenic infections.

Methods: The investigators implemented a prospective observational study.

[Nasal cavity mucosal melanoma with skin extension mimicking a malignant lentigo with mucosal extension].

Mucosal melanoma is a rare malignant disease developed from melanocyte. We report the case of a patient with nasal cavity mucosal melanoma with a primary clinical and histological diagnosis of malignant lentigo with mucosal spreading. The presence of a c-Kit mutation, in a second lecture and the evolving nature of the lesion, reorientated the diagnosis of malignant lentigo to mucosal melanoma with skin extension.

Dental and Maxillofacial Signs in Leri-Weill Dyschondrosteosis.

One of the most common causes of short stature is a defect of the short stature homeobox-containing (SHOX) gene, which is located in pseudoautosomal region 1 on the distal end of the short arm of chromosomes Xp22.33 and Yp11.32.

Postoperative Visual Loss: A Report of One Patient With Unilateral Blindness After Orthognathic Surgery.

Introduction: Blindness after orthognathic surgery may be the result of the surgical procedure itself or the consequence of factors induced by general anesthesia. However, the exact mechanism between is not known. The purpose of this article is to present a case of a postoperative visual loss after orthognathic surgery under general anesthesia concluding with a brief literature review about this topic.

Cranio-Maxillofacial and Dental Findings in Albright's Hereditary Osteodystrophy and Pseudohypoparathyroidism.

Introduction: The clinical phenotype of pseudohypoparathyroidism (PHP) is caused by Albright's Hereditary Osteodystrophy (AHO). Often, "round face" the only facial clinical sign reported in the literature. The aim of this study was to highlight various cranio-maxillofacial clinical findings associated with AHO.

Dental and Maxillofacial Signs in Aarskog Syndrome: A Review of 3 Siblings and the Literature.

Purpose: Dagfinn Aarksog first described faciodigitogenital syndrome in 1970. Its inheritance is X linked and autosomally recessive. Currently, the diagnosis of Aarskog-Scott syndrome (ASS) is based on clinical dysmorphologic findings and can be supported by genetic examination.

Virtual Surgery Planning and Three-Dimensional Printing Template to Customize Bone Graft Toward Implant Insertion.

Premaxillary tooth loss and bone deficiency or atrophy often occur in facial trauma. Onlay bone graft and implants have so far been the best means of restoring function and esthetic appearance. Void space between the graft and the jaw bone, over projection and mucosal trauma can cause mucosal dehiscence, bone exposure, or resorption and can compromise implant survival.