This study evaluates the prevalence and risk factors of non-carious cervical lesions (NCCLs) in a Brazilian population of workers exposed and non-exposed to acid mists and chemical products. One hundred workers (46 exposed and 54 non-exposed) were evaluated in a Centro de Referência em Saúde do Trabalhador - CEREST (Worker's Health Reference Center). The workers responded to questionnaires regarding their personal information and about alcohol consumption and tobacco use. A clinical examination was conducted to evaluate the presence of NCCLs, according to WHO parameters. Statistical analyses were performed by unconditional logistic regression and multiple linear regression, with the critical level of p < 0.05. NCCLs were significantly associated with age groups (18-34, 35-44, 45-68 years). The unconditional logistic regression showed that the presence of NCCLs was better explained by age group (OR = 4.04; CI 95% 1.77-9.22) and occupational exposure to acid mists and chemical products (OR = 3.84; CI 95% 1.10-13.49), whereas the linear multiple regression revealed that NCCLs were better explained by years of smoking (p = 0.01) and age group (p = 0.04). The prevalence of NCCLs in the study population was particularly high (76.84%), and the risk factors for NCCLs were age, exposure to acid mists and smoking habit. Controlling risk factors through preventive and educative measures, allied to the use of personal protective equipment to prevent the occupational exposure to acid mists, may contribute to minimizing the prevalence of NCCLs.

This work aims at studying the absenteeism due to oral and maxillofacial affections and correlated problems of municipal civil servers of São Paulo. The data was assessed onto sick-leave r equests to the São Paulo Occupational Medical Department between December 1996 and December 2000. It is a contribution to the analysis of the oral health impact to the worker. The theoretical groundings of this dissertation lean on a literature review that departs from the absenteeism in its wider concept and reaches the issues of the health-related absenteeism, and within this latter, in particular, those related to dental origin. In its experimental respect, the work resorts to quantitative r esearch methodology applied to secondary data retrieved from the database of administrative occupational expertise during the period. It aims at investigating the prevalence, the incidence and the average time of work absenteeism, according to the variables of interest to the health area, classified by nosologic groups and in agreement with the International Classification of Diseases and Proble ms Related to Health-ICD-10-WHO-1993. The results indicated a larger prevalence on the feminine gender, average of 42.2 years old, with standard deviation of 9.2 years and variation coefficient of 21%, minimum of 20 and maximum of 69 years of age. The analysis of proportions showed the largest frequency in the age group from 20 to 29 years, and the smallest frequency in the age group from 60 to 69 years. It was found, as a central tendency measure, an average sick-leave period of 5.4 days, with a 5.3 days of standard deviation and variation coefficient of 97%, with a minimum leave of 0 days (request denied) and a maximum of 60 days. According to the frequency, the 5 principal reasons were: 1) Erupted tooth extraction (24.94%); 2) Diseases of the pulp and periapical tissues (17.81%); 3) Periodontal Diseases (10.75%); 4) TMJ disorders (7.68%); 5) Embedded and impacted teeth surgery (6.88%). Regarding to the participative weight in the total of sick-leave days, the TMJ disorders was observed to be the prevailing reason (17.12%).

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Aim: To analyze the relationships between perceived oral health quality of life and work ability index. Methods: The data regarding administrative workers of a private textile company in São Paulo -Brazil, included socio-demographic, occupational characteristics, self-perceived oral health (OHIP 14) and self-perceived work ability index (WAI). Results: The response rate of the questionnaires was 75.20% and the reliability of the instruments (Conbrach's alpha) was 0.89 for OHIP 14 and 0.64 for WAI. Linear multiple regression analyses showed that OHIP 14 was associated with educational level (p=0.009) and work ability index (p=0.001) of workers, regardless of other variables. Conclusions: These results showed the importance of adopting oral health programs in private companies to improve oral health and work ability.

Differentiation between palatal rugae patterns of twins by means of the Briñón method and an improved technique Abstract: Palatal rugae patterns are anatomic structures considered unique to each person. Monozygotic twins present similarities, however, Rugoscopy in particular, may contribute to their individualization for forensic purposes. The aims of this study were: to study the palatal rugae classifications of Briñón; to propose improvements to facilitate use of this method, if pertinent; and to characterize palatal rugae in a sample of Brazilian monozygotic twins and singletons. Precise reproducibility of the two methods of Briñón, from 1982 and 2011, was prevented by poor intra-examiner agreement (70% and 13% respectively). Our proposed improvements to these methods, although preliminary, were associated with better results. The most common palatal rugae patterns were types A, M, and Q. Palatal rugae were confirmed to be unique to each individual, even in monozygotic twins. Furthermore, twins did not exhibit any special patterns that might facilitate their differentiation from singletons.

AIM: The purpose of the present study was to evaluate a methodology to estimate the stature in orthodontically treated individuals using odontometric data obtained from digitalized 3-dimensional image. MATERIAL AND METHODS: The sample consisted of 46 Brazilian people from the southern of the country, aged between 22 and 37 years and divided into two groups; group 1 (control) composed by 24 individuals with no orthodontic treatment and adequate alignment of the six anterior mandibular teeth and group 2 (experimental) composed by 22 individuals with crowding of the anterior mandibular teeth before the orthodontic treatment (Group 2A) and after orthodontic alignment (Group 2B). The odontometric data was obtained from their digitalized cast models. Mathematical formulas were used to obtain the stature range between the minimum and maximum estimated stature. RESULTS: The descriptive analysis of the percentage of people with real stature within the estimated stature range showed an average between the right and left hemiarchs of 44%, 75% and 52% for groups 1, 2A and 2B, respectively. CONCLUSION: It was concluded that this method can be used for the stature estimation in orthodontically treated patients but as an auxiliary tool together with other methodologies.

ResumoA pesquisa investiga o absenteísmo por motivo odontológico segundo o cargo ou ocupação do servidor da Prefeitura Municipal de Guarulhos. Os dados, relativos ao ano de 2007, foram obtidos junto ao Serviço de Engenharia de Segurança e de Medicina do Trabalho (SESMT) da própria prefeitura e correspondem a todos os afastamentos registrados na base geral de dados do serviço, cuja classificação internacional de doenças (CID-10), alude a motivos odontológicos. Os afastamentos prevaleceram de forma significativa (p<0,05) dentre as funções de Técnico de Enfermagem III (RP 4,71), Professor (RP 2,88) e Guarda Civil Municipal (RP 1,33). Considerados os motivos de afastamento, conclui-se que o estabelecimento de políticas e práticas de prevenção, promoção de saúde e monitoramento periódico dos servidores (que devem ser conduzidas por equipes permanentes dentro do próprio SESMT) é enfaticamente recomendado. Afora os aspectos que mais diretamente dizem respeito ao incremento da saúde e qualidade de vida dos servidores, considerou-se que tais práticas têm potencial para redução de até 70% do absenteísmo por motivo odontológico. AbstractThe research investigates the absenteeism due to oral and maxillofacial affections of municipal civil servers of Guarulhos -SP according to their occupation. The data relating to 2007 was obtained through the local Municipal Occupational Service, and accounted for all database absences, whose classification (ICD-10) alluded to oral and maxillofacial reasons. The results showed that absenteeism prevailed significantly (p <0.05) among nurse professionals (RP=4.71), Teachers (RP=2.88) and Municipal Civil Guard members (RP=1.33). Regarding the absence reasons, it is concluded that the establishment of policies and practices of prevention, health promotion and periodic monitoring of servers (which should be conducted by permanent dental staff) is strongly recommended. Beyond the aspects related to health and quality of life improve, it was considered that these practices have the potential to reduce oral and maxillofacial absenteeism upon a rate of 70%.Descritores: absenteísmo, saúde ocupacional, saúde bucal, odontologia do trabalho