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Dive into the research topics where F. Cheynet is active.

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Featured researches published by F. Cheynet.


Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology | 1996

Short retromandibular approach of subcondylar fractures: clinical and radiologic long-term evaluation.

C. Chossegros; F. Cheynet; Jean-Louis Blanc; Zoubir Bourezak

OBJECTIVE The classic technique for open reduction of subcondylar fracture is the submandibular approach. The aim of this study was to evaluate long-term clinical and radiologic results of the short retromandibular approach to displaced subcondylar fractures. MATERIAL AND METHODS During a period of 66 months we performed a prospective study with a modified version of the retromandibular approach in 38 patients with displaced subcondylar fractures. In this article we describe clinical and radiologic results in 19 patients with follow-ups longer than 6 months (range, 6 to 66 months). Preoperatively all patients had malocclusion and radiology demonstrated displacement. RESULTS The retromandibular surgical approach was successful in all cases. Roughly 25 months after surgery, mouth opening was 43 mm with symmetric laterotrusive movements. Permanent marginal nerve palsy was never observed. CONCLUSIONS Our findings indicate that the short retromandibular approach is an easy and safe technique for displaced subcondylar fractures.


Revue De Stomatologie Et De Chirurgie Maxillo-faciale | 2005

L’ouverture buccale normale dans la population française adulte

G. Placko; V. Bellot-Samson; S. Brunet; L. Guyot; O. Richard; F. Cheynet; C. Chossegros; M. Ouaknine

INTRODUCTION: Limitation of mouth opening is a frequent symptom in the pathologies of the temporomandibular joint. The aim of this study is to establish normative basis for this criterion in the French population. MATERIALS AND METHODS: Maximal mouth opening was measured by an electronic goniometric device. Measurements were taken in 228 people (110 men and 126 women) aged between 18 to 84 years, representative of the French population. RESULTS: The average mouth opening is 50.7 7 mm, but it was greater in the male population. It was also greater in tall patients and in younger patients (under 50 years). DISCUSSION: Our study is original because it is based on normal subjects and because our population sample age is the same as that of the French population. Men have a greater mouth opening than women, but this can be due to the fact that they are taller. Mouth opening is wider in young subjects, under 50, because they are younger and because they are taller. Mouth opening is wider in tall patients, whatever their sex or their age.


Journal of Cranio-maxillofacial Surgery | 2014

Position paper from the IBRA Symposium on Surgery of the Head – The 2nd International Symposium for Condylar Fracture Osteosynthesis, Marseille, France 2012

Andreas Neff; C. Chossegros; Jean-Louis Blanc; Pierre Champsaur; F. Cheynet; Bernard Devauchelle; Uwe Eckelt; Joël Ferri; Mário Francisco Real Gabrielli; L. Guyot; David Andrew Koppel; Christophe Meyer; Bert Müller; Timo Peltomäki; Fabrizio Spallaccia; Arthur Varoquaux; Astrid Wilk; Poramate Pitak-Arnnop

BACKGROUND This is a position paper from the 2nd International Bone Research Association (IBRA) Symposium for Condylar Fracture Osteosynthesis 2012 was held at Marseille, succeeding the first congress in Strasbourg, France, in 2007. The goal of this IBRA symposium and this paper was to evaluate current trends and potential changes of treatment strategies for mandibular condylar fractures, which remain controversial over the past decades. METHODS Using a cross-sectional study design, we enrolled the consensus based on the panel of experts and participants in the IBRA Symposium 2012. The outcomes of interest were the panel and electronic votes on management of condylar base, neck and head fractures, and panel votes on endoscopic and paediatric condylar fractures. Appropriate descriptive and univariate statistics were used. RESULTS The consensus derived from 14 experts and 41 participant surgeons, using 12 case scenarios and 27 statements. The experts and participants had similar decision on the treatment of condylar base, neck and head fractures, as well as similar opinion on complications of condylar fracture osteosynthesis. They had a parallel agreement on using open reduction with internal fixation (ORIF) as treatment of choice for condylar base and neck fractures in adults. Endoscopic approaches should be considered for selected cases, such as condylar base fractures with lateral displacement. There was also a growing tendency to perform ORIF in condylar head fractures. The experts also agreed to treat children (>12 years old) in the same way as adults and to consider open reduction in severely displaced and dislocated fractures even in younger children. Nevertheless, non-surgical treatment should be the first choice for children <6 years of age. The decision to perform surgery in children was based on factors influencing facial growth, appropriate age for ORIF, and disagreement to use resorbable materials in children. CONCLUSIONS The experts and participating surgeons had comparable opinion on management of condylar fractures and complications of ORIF. Compared to the first Condylar Fracture Symposium 2007 in Strasbourg, ORIF may now be considered as the gold standard for both condylar base and neck fractures with displacement and dislocation. Although ORIF in condylar head fractures in adults and condylar fractures in children with mixed dentition is highly recommended, but this recommendation requires further investigations.


Cranio-the Journal of Craniomandibular Practice | 2001

Posterior Disk Displacement of the TMJ: MRI Evidence in Two Cases

C. Chossegros; F. Cheynet; L. Guyot; V. Bellot-Samson; Jean-Louis Blanc

ABSTRACT Posterior disk displacement is a rare temporomandibular joint (TMJ) disorder. The main clinical sign is sudden molar open-bite (jaw locked in the open position). This may be accompanied by a sensation of intra-articular foreign body and more rarely joint pain. Joint sounds are unremarkable. Mouth opening may be slightly impaired. Hypothetically, like anterior disk displacements, posterior disk displacements can be classified as either reducible or nonreducible. A definitive diagnosis requires magnetic resonance imaging (MRI). There is no consensus concerning treatment. A conservative course of treatment can be successful in patients with functional impairment and should always be attempted before irreversible, invasive therapy.


Revue De Stomatologie Et De Chirurgie Maxillo-faciale | 2008

Exérèse endobuccale des lithiases submandibulaires postérieures : 36 cas

F. Salles; C. Chossegros; L. Guyot; L. Brignol; F. Cheynet; Blanc Jl

INTRODUCTION Proximal submandibular calculi are usually removed by transcervical submandibular sialadenectomy. The aim of this study was to show that intraoral removal of hilar submandibular calculi gives the same results with fewer complications than submandibulectomy. PATIENTS AND METHODS The surgical indication is assessed by palpability of the stone and confirmed by simple CT scan. The surgical procedure is performed under local or general anaesthesia. At the end of the procedure, the duct is controlled with a sialendoscope to remove remaining concretions. We prospectively followed 36 patients with a mean follow-up of six months (one to 36 months). RESULTS The transoral removal of calculi was performed in 34 patients without any definitive neurological complication. The procedure failed in two patients with nonpalpable calculi. Two patients had a recurrence of symptoms due to small intraglandular calculi, which were evacuated later. DISCUSSION The transoral removal of submandibular hilar calculi is a safe and reproducible procedure with less morbidity than submandibulectomy. It should be recommended for posterior palpable submandibular calculi.


Plastic and Reconstructive Surgery | 2001

Axial split osteotomy of free fibular flaps for mandible reconstruction: preliminary results.

L. Guyot; O. Richard; F. Cheynet; Jean Sauvant; C. Chossegros; Walid Layoun; Jean-Louis Blanc; Gola R

Vascularized free flaps are now considered the most appropriate choice for mandible reconstruction because they offer excellent cosmetic and functional results. Various techniques have been proposed. Free fibular flaps have numerous advantages in terms of versatility and contouring. Shaping can be achieved by wedge osteotomy with excellent results. However, this technique leads to bone loss and may be difficult in the later stages of the procedure. The purpose of this report is to describe a simple and safe flap‐shaping method involving axial split osteotomy. (Plast. Reconstr. Surg. 108: 332, 2001.)


Revue De Stomatologie Et De Chirurgie Maxillo-faciale | 2006

L’opinion des patients sur les conséquences fonctionnelles et esthétiques après chirurgie orthognathique: Étude rétrospective de 45 cas

K. Kharrat; M. Assante; C. Chossegros; F. Cheynet; Blanc Jl; L. Guyot; O. Richard

Introduction L’objectif de la chirurgie orthognathique est de corriger les dysmorphoses maxillo-mandibulaires. Les motivations de cette chirurgie sont essentiellement fonctionnelles, mais parfois aussi esthetiques. Materiel et methodes Afin d’apprecier les consequences des interventions de chirurgie orthognathique, notamment sur les plans esthetique et fonctionnel, nous avons mene une etude retrospective sur une cohorte de 60 patients operes au cours des annees 1996 et 1997. Un questionnaire a ete envoye a ces patients une annee apres leur intervention. Resultats Quarante cinq patients ont repondu. Nous avons analyse les aspects esthetiques, fonctionnels, psycho-sociaux… La satisfaction a ete importante sur tous les plans. L’occlusion etait jugee bonne dans 88,9 % des cas, la mastication etait consideree bonne dans 80 % des cas. 73,4 % des patients ont augmente leur confiance en eux. Et 97,8 % se trouvaient ameliores esthetiquement. Discussion La motivation des patients etait en fait plus esthetique que fonctionnelle, ce qui est l’inverse de la motivation du chirurgien. Les repercussions psychiques de ces interventions sont, par ailleurs, non negligeables.


Revue De Stomatologie Et De Chirurgie Maxillo-faciale | 2008

Exérèse des lithiases postérieures de la glande submandibulaire par abord endobuccal

S. Benazzou; F. Salles; F. Cheynet; L. Brignol; L. Guyot; C. Chossegros

INTRODUCTION Sialolithiasis is the most common non-neoplastic salivary gland disease, accounting for 1.2% of the autoptic population. More than 80% of salivary calculi are located in the submandibular ductal system. Hilar calculi are usually removed by transcervical submandibular sialadenectomy. However, intra-oral removal of hilum submandibular calculi is an interesting alternative. INDICATIONS The main criterion for intra-oral removal is the calculi palpability, knowing that calculi under 8mm of diameter are often treated by other techniques (sialendoscopy and lithotripsy). OPERATIVE PROCEDURE We describe a conservative and gland-preserving transoral surgical technique for hilar submandibular calculi with postoperative sialendoscopic control. The different surgical steps are illustrated. DISCUSSION Preservation of the submandibular gland has been attempted in the treatment of sialotithiasis by transoral resection of calculi from the hilum of the gland. This technique features a low morbidity and leads to a complete recovery of glandular function.


Journal of Craniofacial Surgery | 2009

Third molar extraction with massive hemorrhage treated by embolization.

Salma Benazzou; F. Cheynet; Laurent Brignol; L. Guyot; C. Chossegros

Impaction of the third molar is relatively frequent in oral and maxillofacial surgery, and its removal is a usual operation with mostly unremarkable outcome. We report a case of bleeding that occurred after a left upper third molar extraction, which necessitated in emergency an angiography with embolization.


Revue De Stomatologie Et De Chirurgie Maxillo-faciale | 2008

Note techniqueExérèse des lithiases postérieures de la glande submandibulaire par abord endobuccalTransoral removal of submandibular hilar calculi

S. Benazzou; F. Salles; F. Cheynet; L. Brignol; L. Guyot; C. Chossegros

INTRODUCTION Sialolithiasis is the most common non-neoplastic salivary gland disease, accounting for 1.2% of the autoptic population. More than 80% of salivary calculi are located in the submandibular ductal system. Hilar calculi are usually removed by transcervical submandibular sialadenectomy. However, intra-oral removal of hilum submandibular calculi is an interesting alternative. INDICATIONS The main criterion for intra-oral removal is the calculi palpability, knowing that calculi under 8mm of diameter are often treated by other techniques (sialendoscopy and lithotripsy). OPERATIVE PROCEDURE We describe a conservative and gland-preserving transoral surgical technique for hilar submandibular calculi with postoperative sialendoscopic control. The different surgical steps are illustrated. DISCUSSION Preservation of the submandibular gland has been attempted in the treatment of sialotithiasis by transoral resection of calculi from the hilum of the gland. This technique features a low morbidity and leads to a complete recovery of glandular function.

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L. Guyot

Aix-Marseille University

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C. Chossegros

Aix-Marseille University

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O. Richard

Centre national de la recherche scientifique

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F. Salles

Aix-Marseille University

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Astrid Wilk

University of Strasbourg

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Bernard Devauchelle

University of Picardie Jules Verne

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Christophe Meyer

University of Franche-Comté

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