Hepatitis B Immunization Analysis: Tracking of Antibody Levels among Dental Patients.

AIM: To verify the immunization status of dental students against HBV using an immunochromatographic rapid test and explore its associated protective and preventive effects against the disease. MATERIAL AND METHODS: This transversal epidemiological study was conducted in a public dental school in Brazil. A total of 263 dental students who were at clinical practice were invited to participate in the study. A semi-structured questionnaire that investigated the issues related to the theme was created for data collection. An immunochromatographic test for the detection of anti-Hepatitis B surface antigen was used to verify the immunization status. Data were analyzed using the Statistical Package for the Social Sciences (SPSS). RESULTS: Approximately 59.2% of the participants did not know the etiological agent of hepatitis B infection, and 36.6% did not know the number of doses of hepatitis B vaccines. Further-more, 53.2% of the participants were immunized against HBV. Logistic regression showed that those who received less than three doses of the vaccine (OR = 2.539) or did not know how many doses they received (OR = 3.022) had higher risks of not developing the immunity. Moreover, age (OR = 0.834) was a protective factor against non-immunization. CONCLUSION: There was a low prevalence of dental students who were immunized against HBV. The number of vaccine doses received and the participants' age had significant associations with the immunization status. CLINICAL SIGNIFICANCE: Deals with an issue of major impact on the public health because of the high rates of hepatitis B in the general population, as well as the lack of knowledge of the subject by a large part of dental surgeons and dental students.

Alteraciones auditivas, percepción y conocimientos de estudiantes sobre ruido en una clínica de enseñanza odontológica / Auditory alterations and student knowledge and perception on noise at a dental teaching clinic

RESUMEN Objetivo Identificar alteraciones auditivas en estudiantes de odontología y evaluar el nivel de conocimiento con relación a la pérdida auditiva inducida por ruido. Metodología Estudio transversal, se realizaron encuestas a estudiantes del tercer año curso diurno y cuarto año del curso nocturno de estomatología. Las variables estudiadas: trastornos auditivos y conocimiento sobre PAIR (pérdida auditiva inducida por ruido). Resultados Muestran la presencia de trastornos auditivos en 14,8% de los estudiantes, de los que 7,4% recibieron tratamiento. El 28,4% había realizado exámenes audio métricos. De los estudiantes, 24,6% tenían familiares con problemas de audición; 11,1% enfermedades preexistentes;49,3% necesitan repetición durante una conver-sación;34,4% estaba irritado en el ambiente de clases prácticas y consideraban las piezas de mano de alta rotación el instrumento más ruidoso; el 75,3% refirió usar audífonos y un 72,1% por más de 5 años. En relación a los resultados sobre conocimientos 93,8% afirmaron que el dentista es un profesional con riesgo de pérdida auditiva por ruido, pero el 83,9% no había recibido orientación sobre el PAIR. Respecto al protector auricular 77,7% lo conocía, pero sólo 3,7% lo había usado. Conclusión Los estudiantes de estomatología presentaron alteraciones auditivas inducidas por el ruido, y consideraban el local de las clases prácticas un ambiente ruidoso; es necesario un mayor conocimiento en los alumnos de las consecuencias negativas del ruido en la salud y la utilización de medidas de prevención para evitar la pérdida de la audición a largo plazo.(AU)

ABSTRACT Objective To identify auditory alterations in dentistry students and evaluate the level of knowledge in relation to noise-induced hearing loss. Materials and Methods Cross-sectional study. Surveys applied to third-year students of the day school, and fourth-year students of the night stomatology school. The variables studied were auditory disorders and knowledge about NIHL (noise-induced hearing loss). Results Hearing disorders were found in 14.8% of the students, of whom 7.4% were receiving treatment. Audiometric examinations were performed in 28.4% of the students. It was also found that 24.6% of the students had relatives with hearing problems; 11.1% had pre-existing conditions; 49.3% needed repetition during a conversation; 34.4% felt irritated during practical classes and considered high rotation hand pieces to be the noisiest instrument; and 75.3% reported using hearing aids (72.1% for more than 5 years). With regard to knowledge, 93.8% said that dentists are professionals at risk of hearing loss due to noise, but 83.9% had not received guidance on NIHL. Regarding the hearing protector, 77.7% knew about it, but only 3.7% had used it. Conclusion Stomatology students have noise-induced hearing loss, and also considered that the places where practical classes are given are a noisy environment. More knowledge is needed in students about the negative consequences of noise in health and the use of preventive measures to avoid hearing loss in the long term.(AU)

[Auditory alterations and student knowledge and perception on noise at a dental teaching clinic]. / Alteraciones auditivas, percepción y conocimientos de estudiantes sobre ruido en una clínica de enseñanza odontológica.

OBJECTIVE: To identify auditory alterations in dentistry students and evaluate the level of knowledge in relation to noise-induced hearing loss. MATERIALS AND METHODS: Cross-sectional study. Surveys applied to third-year students of the day school, and fourth-year students of the night stomatology school. The variables studied were auditory disorders and knowledge about NIHL (noise-induced hearing loss). RESULTS: Hearing disorders were found in 14.8% of the students, of whom 7.4% were receiving treatment. Audiometric examinations were performed in 28.4% of the students. It was also found that 24.6% of the students had relatives with hearing problems; 11.1% had pre-existing conditions; 49.3% needed repetition during a conversation; 34.4% felt irritated during practical classes and considered high rotation hand pieces to be the noisiest instrument; and 75.3% reported using hearing aids (72.1% for more than 5 years). With regard to knowledge, 93.8% said that dentists are professionals at risk of hearing loss due to noise, but 83.9% had not received guidance on NIHL. Regarding the hearing protector, 77.7% knew about it, but only 3.7% had used it. CONCLUSION: Stomatology students have noise-induced hearing loss, and also considered that the places where practical classes are given are a noisy environment. More knowledge is needed in students about the negative consequences of noise in health and the use of preventive measures to avoid hearing loss in the long term.

OBJETIVO: Identificar alteraciones auditivas en estudiantes de odontología y evaluar el nivel de conocimiento con relación a la pérdida auditiva inducida por ruido. METODOLOGÍA: Estudio transversal, se realizaron encuestas a estudiantes del tercer año curso diurno y cuarto año del curso nocturno de estomatología. Las variables estudiadas: trastornos auditivos y conocimiento sobre PAIR (pérdida auditiva inducida por ruido). RESULTADOS: Muestran la presencia de trastornos auditivos en 14,8% de los estudiantes, de los que 7,4% recibieron tratamiento. El 28,4% había realizado exámenes audio métricos. De los estudiantes, 24,6% tenían familiares con problemas de audición; 11,1% enfermedades preexistentes;49,3% necesitan repetición durante una conver-sación;34,4% estaba irritado en el ambiente de clases prácticas y consideraban las piezas de mano de alta rotación el instrumento más ruidoso; el 75,3% refirió usar audífonos y un 72,1% por más de 5 años. En relación a los resultados sobre conocimientos 93,8% afirmaron que el dentista es un profesional con riesgo de pérdida auditiva por ruido, pero el 83,9% no había recibido orientación sobre el PAIR. Respecto al protector auricular 77,7% lo conocía, pero sólo 3,7% lo había usado. CONCLUSIÓN: Los estudiantes de estomatología presentaron alteraciones auditivas inducidas por el ruido, y consideraban el local de las clases prácticas un ambiente ruidoso; es necesario un mayor conocimiento en los alumnos de las consecuencias negativas del ruido en la salud y la utilización de medidas de prevención para evitar la pérdida de la audición a largo plazo.