Möbius syndrome is a congenital condition, the etiology when is not associated with misoprostol is not well defined. Signs and symptoms include difficulty swallowing, speech problems, drooling, strabismus, limitation of eye movement and more importantly, the facial blankness that these individuals have, result of the facial paralysis, due to atrophy of the cranial nerves that are involved in this condition. The ability to express emotions is affected and are considered “children without a smile.” There is currently no treatment to solvent the birth defects, the treatment options for reduce these alterations is the surgical option that has as main objective to restore muscle function through various techniques, used as required, the possibilities of applying them, is taking into consideration the outcome of the procedure to execute. Among the surgical techniques used mainly: the lengthening myoplasty of the temporal muscle,muscle transfers, cross-facial grafting, neurorrhaphy and nerve transposition, of which latter are the best performers, giving the patient a more natural, in as far as regards expression and function. Key words:Möbius syndrome, surgery, smile, facial nerve, muscle transfer, transfer nerve, temporalis muscle.

Introduction: Oral diseases in psychiatric patients are usually a result of bad oral hygiene and psychopharmaceutical side-effects. Objective: The aim of this study was to detect the most prevalent oral lesions in patients hospitalized in a psychiatric institution in Caracas, Venezuela with the confirmed diagnosis of psychiatric illness. Material and Methods: A transversal study consisted of 65 hospitalized patients with psychiatric disorders out of whom 50 were males and 15 females. Patients were aged from 19 to 80 years, mean age 50.2 years. Data on oral lesions were obtained within history and clinical examination of the oral cavity. Other medical data were collected from medical documentation. Statistical analysis was performed by SPSS version 17.0. Results: 56.92% of patients had caries in at least one tooth, 29.23% presented gingivitis and 56.92% periodontal disease. In relation to Temporomandibular joint, 36.92% presented articular sounds and 10.76% muscular pain. Between the most prevalent parafunctional habits were found cigarette habit, bruxism, onychophagia and cheek bite. Conclusion: Results imply that psychiatric patients are more frequently involved with oral lesions than healthy persons. It is necessary to organize specific preventive and educational oral health programmes with these patients, in a multidisciplinary group. Key words:Phychiatric patients, schizophrenia, medication, periodontal diseases.

Children with autism exhibited a higher caries prevalence in primary teeth than in permanents. They also presented poor hygiene and an extensive presence of calculus.

Rubinstein-Taybi syndrome (RTS) occurs in one out of 300,000 individuals. It is mainly characterized by a delay in growth, psychomotor retardation, duplication of the distal phalanx of the thumbs, typical facial dimorphism, a risk of cancer, and multiple dental abnormalities. This case report describes the dental management of a 13-year-old female with RTS, who had multiple dental problems such as caries, periodontal disease, and a severe malocclusion. Physical findings were similar to those previously described in other reports. Dental treatment was carried out under sedation due to the patient's inability to cooperate during dental treatment. After 3 years of follow-up there were no new caries and the periodontal health had improved.

Marfan syndrome is the most common dominant autosomic genetic disorder of the connective tissue. It has a reported incidence of 1 per each 5000 individuals without any distinction of gender or ethnicity. This pathology's diagnosis is mainly based on physical characteristics, presenting three main different symptomatic charts: neonatal Marfan, infant Marfan and classical Marfan. The mayor characteristic of these patients consists of an exaggerated length of the upper and lower limbs, hyperlaxity, scoliosis, alterations in the cardiovascular and pulmonary systems and atypical bone overgrowth. The individual implied in the present investigation concerned to a 14 year old male patient presenting multiple mouth lesions and dental alterations, attended in the Department of Pediatric Dentistry degree at the Dentistry School in the Santa Maria University. The patient has been treated following the necessary considerations required according to his systemic compromise d under oral premedication for decrease the anxiety and make easear the behavior management. The patirnt with MS has multiple oral decrease that may be diagnoticated a treated on time to increase the life quality of the patient.