فهرست مطالب

Oral Health and Oral Epidemiology - Volume:8 Issue: 4, 2019
  • Volume:8 Issue: 4, 2019
  • تاریخ انتشار: 1398/08/10
  • تعداد عناوین: 6
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  • Kazem Fatemi, Amirhossein Chavoshi, Seyed Ahmad Banihashemrad, Kazem Ghodsi, Mohammad Esmaeel Rezaee, Abdollah Javan Rashidi, Seyed Ali Banihashemrad * Pages 167-172
    BACKGROUND AND AIM

    Several risk factors contribute to periodontal diseases. Studying twins has helped increase our knowledge on the roles of genetic and environmental factors in periodontal diseases. The objective of this study was the evaluation of periodontal parameters in the twins of Khorasan Province, Iran.

    METHODS

    This study was carried out on 30 pairs of twins between 12-35 years old including 12 pairs of monozygotic (MZ) twins and 18 pairs of dizygotic (DZ) twins with the average age of 18 years old. Periodontal parameters studied consisted of: probing pocket depth (PPD), clinical attachment level (CAL), and bleeding on probing (BOP). Analyses were conducted through SPSS software. T-test was used to examine the differences between MZ and DZ twins also between first twin and second twin. Significance level was set at 0.05.

    RESULTS

    The amounts of PPD (P = 0.045) and CAL (P = 0.003) were significantly different between MZ and DZ twins, while no significant difference in BOP (P = 0.474) was observed between the two groups. Studying heritability showed that BOP could be affected by environmental factors (h2 = 0.41), while CAL and PPD were affected by genetic factors (h2 = -0.70 and h2 = -0.61, respectively).

    CONCLUSION

    Our study confirms previous studies which had focused on the role of genetic factors in periodontal diseases. It indicates that in twins, PPD and CAL are mostly affected by genetic factors, while BOP is mainly affected by environmental factors.

    Keywords: Bleeding on Probing, Periodontal disease, Twins
  • Marieh Honarmand *, Alireza Nakhaee, Vahid Okati Pages 173-176
    BACKGROUND AND AIM
    Recurrent aphthous stomatitis (RAS) results due to a multiple of causes, amongst which stress is one of the most important factors. On the other hand, salivary alpha (α)-amylase (SAA) is a secretory protein that increases in stress conditions. This study evaluated SAA level in subjects with RAS.
    METHODS
    In this case-control (descriptive-analytical) study, unstimulated saliva samples were collected from 27 patients with RAS and 29 healthy controls. SAA activity was determined by spectrophotometric method using commercially available kit according to manufacturer procedure. Data were analyzed using SPSS software with t test (P < 0.05 was considered significant).
    RESULTS
    SAA level in patients with RAS was 80.78 ± 4.69 U/ml and 65.61 ± 27.52 U/ml during recurrence and recovery, respectively (P = 0.005). SAA level in control group was 19.99 ± 4.65 U/ml. There was a significant difference in the SAA level between RAS and control groups.
    CONCLUSION
    SAA level has been increased in patients with aphthous ulcer during recurrence, which may indicate an association between aphthous ulcer and stress.
    Keywords: Aphthous Stomatitis, Salivary Alpha-Amylases, Stress
  • Levent Cigerim *, Erkan Feslihan Pages 177-182
    BACKGROUND AND AIM
    Alterations in blood pressure (BP) and variability of heart rate (HR) throughout dental procedures were not clearly understood. The aim of this study is to evaluate the effects of body mass index (BMI) on BP and HR in patients undergoing tooth extraction.
    METHODS
    Based on BMI, 831 patients who underwent single tooth extraction were divided into two groups; group 1: underweight and normal-weight patients, group 2: overweight and obese patients. BP and HR were monitored before local anesthesia and after tooth extraction. For statistical analysis of the data, Number Cruncher Statistical System (NCSS) 2007 program was used. Mann-Whitney U test and Student’s t-test was used for comparing the differences between groups.
    RESULTS
    The initial and final BP measurements of overweight and obese patients were found to be significantly higher than underweight and normal-weight patients (P < 0.01). There was no statistically significant difference between groups in terms of initial and final HR measurements (P > 0.05).
    CONCLUSION
    Overweight and obese patients are more likely to have increased BP; therefore, monitoring of BP and HR during tooth extraction is crucial in this group of patients to prevent possible complications.
    Keywords: Body mass index, blood pressure, Heart Rate, Tooth Extraction
  • Omid Karimipour Baseri, Soleiman Kheiri *, Morteza Sedehi, Ali Ahmadi Pages 183-189
    BACKGROUND AND AIM

    Recognizing the factors affecting the number of decayed and filled teethhas a major role in oral health. Dental data usually suffer from over-dispersion and excess zero frequencies. The purpose of this study was to use theConway-Maxwell-Poisson (COM-Poisson) model to determine some of the factors affecting the number of decayed and filled teeth.

    METHODS

    In this cross-sectional study, a sample of 1000 people from a cohort study in Shahrekord City, Iran, aged 35-70 years, was selected through systematic sampling. The data were analyzed using the Bayesian approach through Markov chain Monte Carlo (MCMC) simulation by OpenBUGS. Zero-inflated Poisson (ZIP), COM-Poisson model, and zero-inflated Com-Poisson (ZICMP) model were fitted on the data and compared using the deviance information criterion (DIC).

    RESULTS

    The mean numbers of decayed and filled teeth were 0.77 ± 1.63 and 4.37 ± 4.62, respectively. The Com-Poisson and ZICMP showed to be better fit for the number of decayed and filled teeth, respectively. Those people who were younger, male, smokers, diabetics, did not floss, and did not use mouthwash had significantly more number of decayed teeth (P < 0.05). Those people who were younger, female, non-diabetics, non-smokers, employed, literate, had less body mass index (BMI), flossed, and got higher score of quality of life had significantly more number of filled teeth (P < 0.05).

    CONCLUSION

    By controlling such factors as education, BMI, flossing, using mouthwash, smoking, diabetes, and quality of life, we could improve the oral health.

    Keywords: Bayes’ Theorem, Conway-Maxwell-Poisson Distribution, Decayed, Missing, and Filled Teeth, Zero-inflated
  • Goli Chamani, Elham Abbaszadeh *, Mohammad Reza Zarei, Robert Merrill Jr, Maryam Rad Pages 190-197
    BACKGROUND AND AIM
    This study was aimed to investigate the clinical presentations and frequencies of co-morbid factors in patients with myofascial pain or myalgia of masticatory muscles.
    METHODS
    In this retrospective study, the data were obtained from the documents of the patients with myalgia or myofascial pain of the masticatory muscleswho were conceded toKerman Orofacial Pain Clinic, Kerman, Iran. Their clinical presentations and frequencies of possible related comorbid factors were evaluated. The chi-square test, Fisher’s exact test, and t-test were used for comparing the distribution of variables. Analysis of variance (ANOVA) and Tukey's honestly significant difference (HSD) test were also used for comparisons between groups. A P-value ≤ 0.05 was considered statistically significant.
    RESULTS
    Patients with masticatory muscle myalgia or myofascial painconsisted of 296 individuals, 258 women (87.7%) and 38 men (12.3%) with an average age of 34.00 ± 11.75 years (range: 15-75 years). Temporomandibular disorder (TMD) occurred in 259 (87.5%) patients and 262 (88.5%) subjects had headache. A total of 178 individuals (60.1%) reported pain in three parts of the body and 155 subjects (52.4%) had insomnia. Bruxism, other oral para-functional habits, and poor head and neck postures were found in 156 (52.7%), 167 (56.4%), and 80 (27.0%) subjects, respectively. The frequency of moderate to severe depression and moderate anxiety was 22.0% of our study population.
    CONCLUSION
    This study stated that the frequency of masticatory muscle pain (MMP) was high in patients with TMD, headache, and psychological disorders and accompanied with insomnia, oral parafunction, and bodily pain.
    Keywords: Myofascial Pain, Myalgia, Masticatory Muscles, Temporomandibular Joint Disorders, Headache
  • Fatemeh Lavaee, Azita Sadeghzadeh, Bahar Afroozi *, Ali Golkari, Abdollah Piri Zarrini Pages 198-203
    BACKGROUND AND AIM

    Oral mucosal lesions can affect patient’s quality of life (QOL). In this evaluation, Persian version of Chronic Oral Mucosal Disease Questionnaire (COMDQ) was used to assess participants’ QOL.

    METHODS

    This cross-sectional study was done during 2015-2016 in School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran. 95 participants with pemphigus vulgaris (PV), oral recurrent aphthous stomatitis (RAS), and oral lichen planus (OLP) enrolled is this study. The Persian version of COMDQ with 26 questions and 4 domains was used for assessing QOL. The data were analyzed in SPSS software. P-value less than 0.05 was considered significant. Independent t-test, analysis of variance (ANOVA), andTukey's test were used to assess scores of QOL.

    RESULTS

    The final QOL scores were 45.95 ± 16.31, 53.38 ± 17.64, and 50.02 ± 17.36 for men, women, and all patients, respectively. Patients with OLP and RAS had good QOL, but patients with PV reported lower level of QOL (moderate). None of the COMDQ domains showed significant correlation with gender except pain and functional limitation and overall QOL score.

    CONCLUSION

    The result of this evaluation revealed a good QOL; considering the type of oral disease, QOL ranged between moderate for patients with PV and good for patients with OLP and RAS.

    Keywords: Lichen Planus, stomatitis, Aphthous, pemphigus, Quality of Life