Background: Periodontal infections are the most common oral diseases in pregnancy. This condition can cause complications during pregnancy. Therefore, this study was designed to determine the factors affecting preterm birth and their relationship with periodontal diseases. Methods: This was a prospective cohort study and the population, consisted of women 18-45 years attending prenatal care centers in their second trimester of pregnancy. After obtaining informed and free consent from the female parent, a periodontal examination was performed and her medical information was recorded. Examination of Rumford’s teeth was performed to assess the severity of gingivitis, plaque, calculus, and attachment loss, and AMOS software was used to investigate the association between preterm labor and delivery and to provide a conceptual model. Results: The consequences showed a direct association between preterm labor and factors, such as attachment loss, calculus , bleeding on probing (BOP), age, current diabetes, gestational diabetes, gestational hypertension, lack of Calcium, Folic acid, and Fe supplementation, mothers’ depression, polyhy dramnios, smoking severity and history of premature rupture of the membrane. The results also indicated an indirect relationship between an irregular tooth brushing and preterm birth. Conclusion: Attachment loss, calculus, bleeding on probing are directly related to premature labor and irregular tooth brushing is indirectly associated with early birth. Due to the direct relationship between periodontal diseases and preterm delivery, regular brushing, oral hygiene, oral examinations during pregnancy and follow-up treatment of periodontal disease during pregnancy are recommended. Keywords: Periodontal disease, Preterm labor, Cohort study, Path analysis, Pregnancy

Introduction: Rapid diagnosis of maxillofacial abscess with the odontogenic origin is effective in the treatment of patients. This study aimed to check the clinical evaluation, head, and neck computed tomography (CT) scan, and microbial sensitivity of hospitalized patients diagnosed with maxillofacial abscess admitted to the Maxillofacial Surgery Ward Shaheed Rajaie Surgical Acute Care Center of Shiraz, Iran from 2019-2021. Method: A cross-sectional study was conducted. The sample included patients diagnosed with the abscess of odontogenic origin. Data collection tools included personal profile registration form, chief complainant and clinical evaluation, laboratory test results, pus culture, antibiogram results, and head and neck CT scan changes form. Data was reported with descriptive statistics by SPSS-16 software. Results: The majority of patients were male; infection duration was 10 days; maximum mouth opening size was less than 20 mm in more than half of patients. The scan revealed 41.8% abscess, 36.4% cellulite, and 21.8% mixed abscess and cellulitis. There was 29.1% involvement of salivary glands. The majority of abscesses were unifocal involved in the submandibular space, and the least involvement was in peri mandibular space and carotid sheath. The most common organism causing was staphylococcal abscess coagulase-negative. Conclusion: In patients with maxillofacial abscess requiring hospitalization, the most common clinical features were trismus, toxic appearance, and dysphagia, and the most common source of abscess in scanning patients with mandibular molars was the most involved submandibular space and pterygomandibular space. Vancomycin, cotrimoxazole, and cefazolin had the greatest effect in the treatment of odontogenic infections in terms of antibiogram results and microbial culture.

Introduction:High quality educational systems are necessary for sustainable development and responding to the needs of society. In the recent decades, concerns have increased on the quality of education and competency of graduates. Since graduates of medical education are directly involved with the health of society, the quality of this system is of high importance. Investigation in the lived experience of educational leaders in the medical education systems can help to promote its quality. The present research examines this issue in Iran.Methodology:The study was done using content-analysis qualitative approach and semi-structured interviews. The participants included 26 authorities including university chancellors and vice-chancellors, ministry heads and deputies, deans of medical and basic sciences departments, education expert, graduates, and students of medical fields. Sampling was done using purposive snowball method. Data were analyzed using conventional content analysis.Findings:Five main categories and 14 sub-categories were extracted from data analysis including: quantity-orientation, ambiguity in the trainings, unsuitable educational environment, personalization of the educational management, and ineffective interpersonal relationship. The final theme was identified as “Education in shadow”.Conclusion:Personalization and inclusion of personal preferences in management styles, lack of suitable grounds, ambiguity in the structure and process of education has pushed medical education toward shadows and it is not the first priority; this can lead to incompetency of medical science graduates.

BACKGROUND Periodontal infections are the most common oral diseases in pregnancy. This condition can cause complications during pregnancy. Therefore, this study was designed to determine the factors affecting preterm birth and their relationship with periodontal diseases. METHODS This was a prospective cohort study and the population, consisted of old women in the age group of 18 – 45 years attending prenatal care centers in their second trimester of pregnancy. After obtaining informed and free consent from the female parent, a periodontal examination was performed and her medical information was recorded. Examination of Rumford’s teeth was performed to assess the severity of gingivitis, plaque, calculus, and attachment loss. AMOS software was used to investigate the association between preterm labor and delivery and to provide a conceptual model. RESULTS The consequences showed a direct association between preterm labour and factors, such as attachment loss, calculus, bleeding on probing (BOP), age, current diabetes, gestational diabetes, gestational hypertension, lack of calcium, folic acid, and iron supplementation, mothers’ depression, polyhydramnios, smoking severity, and history of premature rupture of the membrane. The results also indicated an indirect relationship between irregular tooth brushing and preterm birth. CONCLUSIONS Attachment loss, calculus, bleeding on probing, are directly related to premature labour and irregular tooth brushing is indirectly associated with early birth. Due to the direct relationship between periodontal diseases and preterm delivery, regular brushing, oral hygiene, oral examinations during pregnancy and follow-up treatment of periodontal disease during pregnancy are recommended. KEY WORDS Periodontal Disease, Preterm Labour, Cohort Study, Path Analysis, Pregnancy