Dmitry José de Santana Sarmento

Actinic cheilitis: clinicopathologic profile and association with degree of dysplasia

Actinic cheilitis (AC) is a potentially malignant disorder of the lip caused by exposure to solar radiation.

Smoking among undergraduate students in the area of health

The aim of this study was to evaluate the relationship between smoking and socio-demographic and behavioral factors among undergraduate students in the area of health at the State University of Paraíba, Brazil. An analytical cross-sectional study was conducted with a representative sample from each of the following courses: Dentistry, Nursing, Psychology, Pharmacy, Physical Therapy and Physical Education. A total of 492 students were interviewed using a structured questionnaire. The chi-square and Fishers Exact tests were used for statistical analysis at a 5% level of significance. Smoking prevalence was 5.7% and stress was the main reason for starting the habit (36.8%). In the multivariate analysis by logistic regression, the variables of gender, religious persuasion, semester attended in the course, and alcohol consumption were significantly associated with smoking (p<0.05). Although other studies reported a strong relationship between university students and smoking, the prevalence of smokers was low. Most of the variables studied revealed a correlation with smoking. Since smoking and alcohol consumption are the two major human addictions, this study suggests a bidirectional relationship between these variables.

Características e distribuição das fraturas mandibulares por causas externas: estudo retrospectivo

Purpose: To investigate the characteristics and distribution of the cases of mandibular fractures due to external causes treated at the Hospital Regional d...

Mucopolysaccharidosis: radiographic findings in a series of 16 cases.

OBJECTIVES To investigate the radiographic findings of mucopolysaccharidoses (MPS) on panoramic radiographs in a series of 16 patients. STUDY DESIGN This retrospective cross-sectional study included panoramic radiographs of 16 patients with cytogenetically diagnosed MPS. Two blinded, previously calibrated observers evaluate the presence or absence of the following features: type of dentition; stage of dental age in comparison with chronologic age; delayed exfoliation of deciduous teeth; supernumerary teeth; teeth impaction; enlarged, cyst-like dental crypt; hypercementosis; taurodontism; generalized enamel hypoplasia; enlargement of the bone marrow spaces; thinning of cortical bone; unusual morphology of condyles; and flattening of the condylar head. RESULTS The final sample was composed of 8 MPS IV, 7 MPS VI, and 1 MPS I cases. All patients presented unusual morphology of condyles. Cyst-like dental crypt (75%), taurodontism, and teeth impaction (68.75% each) were also overall common findings. Generalized enamel hypoplasia was exclusively identified in patients with MPS IV (75% of those patients). CONCLUSIONS Radiographic features of oral and maxillofacial manifestations in patients with MPS frequently encountered by dentists may help recognize the disorder. However, because of sample size limitations, it was not possible to infer any statistical relationship between the radiographic features and the types of MPS.

Patients With Mucopolysaccharidosis Have Tendencies Towards Vertical Facial Growth

PURPOSE Studies addressing the changes in craniofacial morphology of patients with mucopolysaccharidosis (MPS) are important for a better understanding of the progression of this disease. The present objective was to identify major cephalometric abnormalities in these patients. MATERIALS AND METHODS This was a cross-sectional case-and-control study. The sample was composed of 2 types of study subjects (patients with MPS and normal subjects). The outcome variables were numerous cephalometric elements that measure facial height, dental positioning, facial growth pattern, and mandibular and maxillary positioning. The Student t test was used to compare the mean angular and linear measurements of the case and control groups and the level of significance was set at a P value less than .05. The Bonferroni method was used for adjustment of the P value (P<.003 was deemed significant). RESULTS The control group consisted of randomly selected subjects matched to the patients with MPS for the demographic variables of gender and age. Seventeen patients with MPS were evaluated (64.7% female). The mean age of the sample was 13.29 years. One patient had MPS I, 8 had MPS IV, and 8 had MPS VI. The results showed important differences between groups in angular measurements (angle formed by the line between the sella and nasion [SN] and the plane of the gonion and gnathion, angle formed by the intersection of the gnathion point and the SN line, angle formed by the intersection of the long axis of the lower incisor with the line between the nasion and the B point, angle formed by the intersection of the long axes of the upper and lower incisors, and angle formed by the Frankfort horizontal plane with the mandibular plane) and linear measurements (condyle to A point, condyle to gnathion, pro-nasal ( Pn) point to the line between the pogonion and upper incisor, and the nearest point of the anterior half of the soft palate to the posterior pharyngeal wall). The angle formed by the SN line with the plane between the gonion and the gnathion and the distance from the condyle to the A point showed meaningful differences after Bonferroni adjustment. CONCLUSION Patients with MPS present a tendency toward vertical growth that results in a dolichocephalic facial pattern. In addition, a smaller nasopharyngeal space was observed, a factor that might be responsible for the mouth breathing observed in these patients.

Epidemiological Profile of Facial Fractures and Their Relationship With Clinical-Epidemiological Variables.

AbstractThe objective of this study was to identify the epidemiological profile of facial fractures and to associate with clinical–epidemiological variables. An epidemiological survey was conducted in which data retrieved from the records of patients with facial fractures were analyzed. Pearson &khgr;2 test, Student t-test, one-way analysis of variance, Bonferroni post-hoc test, and logistic regression were used for statistical analysis, adopting a level of significance of 5%. The sample consisted of 718 patients ranging in age from 21 to 30 years (56.4%), including 480 (66.9%) men. Traffic accidents were the main etiological agent (62.7%) and the nasal bones were the most affected (41.8%). An association was observed between age and etiology (P < 0.001), fractured bone (P < 0.001), type of treatment (P < 0.001), hospital length of stay (P < 0.001), and complications (P = 0.001). Patients with traffic accident [odds ratio (OR) = 3.08, P < 0.001] and fall (OR = 2.50, P = 0.049) as etiology had more risk of complications. The type of fractured bone was associated with etiology (P < 0.001), type of treatment (P < 0.001), hospital length of stay (P < 0.001), and complications (maxilla—OR = 1.90, P = 0.004). In conclusion, facial fractures predominantly affect men aged 21 to 30 years. Traffic accidents are the main etiology and the nasal bone is the site most affected. It was observed that the older the patient, the greater the susceptibility to falls, surgical treatment, hospital stay, and complications. Patients with maxillary or mandibular fractures remain hospitalized for longer periods of time. Fractures by traffic accident and fall had more risk of complications. The risk of complications was also higher in patients with maxilla fracture.

Link between immunoexpression of hMLH1 and hMSH2 proteins and clinical-epidemiological aspects of actinic cheilitis

Background The studies found in the literature associate the immunoexpression of hMLH1 and hMSH2 proteins with histologic aspects, but do not correlate it with clinical and epidemiological data. Objective To evaluate the immunoexpression of hMLH1 and hMSH2 in actinic cheilitis, correlating it with clinical characteristics. Methods We analyzed 40 cases. Histological and immunohistochemical analyses were performed. The following clinical variables were evaluated: gender, age range, ethnicity, clinical aspect and occupational sunlight exposure. Statistical evaluation included the Student t-test, while the significance level was set at 5%. Results Greater immunoexpression of hMLH1 and hMSH2 was observed in females, individuals aged over 40, and mixed-race/black patients. Furthermore, the immunoexpression of these proteins was greater in actinic cheilitis with a white-colored appearance and in patients without occupational sunlight exposure. No statistical differences were observed for the variables studied. Conclusion This study uncovered variations of hMLH1 and hMSH2 protein expression upon evaluation of clinical aspects in actinic cheilitis.

Socioeconomic profile and academic performance of students on Campus VIII of the State University of Paraíba, Araruna, Brazil, 2013.

Aims: The aim of the present study was to analyze the socioeconomic profile and academic performance of students of three courses on Campus VIII of the State University of Paraiba. Study Design: A quantitative, descriptive, cross-sectional study with an inductive approach was carried out involving students in the courses of dentistry, civil engineering and natural science on Campus VIII of the State University of Paraiba (northeastern Brazil) in 2013. Methodology: A total of 321 students were enrolled, and the sample was made up of 238 participants who answered a semi-structured questionnaire addressing socioeconomic

Diagnóstico e conduta do cirurgião-dentista frente ao carcinoma adenóide cístico

O carcinoma adenoide cistico (CAC) e uma neoplasia maligna de glândula salivar rara, de crescimento lento e que apresenta prognostico reservado. Acomete principalmente pacientes na faixa etaria entre cinquenta a setenta anos, sendo incomum em jovens; possui natureza infiltrativa e, clinicamente, apresenta como nodulo de consistencia endurecida, com alta taxa de recidina. Objetivo: O presente trabalho tem por objetivo descrever um CAC em paciente idoso, enfatizando seu diagnostico pelo cirurgiao-dentista e conduta terapeutica. Relato de caso: Paciente do sexo masculino, 73 anos, feoderma, compareceu ao servico de Estomatologia da Universidade Estadual da Paraiba (UEPB) relatando uma lesao no palato, com evolucao de aproximadamente um ano, a qual apresentava consistencia mole com contornos irregulares. Foi realizada biopsia incisional, a peca foi encaminhada para exame histopatologico sendo diagnosticada coo CAC. Consideracoes finais: O diagnostico final so e conclusivo quando acompanhado do exame histopatologico, e a conduta que o cirurgiao-dentista deve tomar apos tal procedimento e de encaminhamento do paciente ao cirurgiao de cabeca e pescoco. Palavras-chave: Carcinoma adenoide cistico. Patologia bucal. Glândulas salivares.