فهرست مطالب naser valaii

According to the study of patient's complaints about dental treatments and the fact that patients' complaints have been less about dental implant treatment, this study aimed to investigate the dental complaints in implants treatment and related factors during 2016-2018. 

Following a descriptive method, the relevant permissions were obtained after referring to the Forensic Medical Commission of Tehran. The files of all the dentists were evaluated during 2016 until 2018. Then, the files related to the complaints about tooth implantation services were separated. The patient relevant factors were evaluated and documented such as age, gender, and the reason of complaint, as well as dentist related factors including age and gender. Afterwards, the judgements of the commission were determined including exoneration or obvious negligence and the frequency of each judgement in the samples. The real judgement frequency (CI) was estimated and the roles of relevant factors were statically determined using the Chi Square Test.

Amongst all dental services complainers, one-third (30%) of the files were related to the tooth implantation services during 2016-2018, that included inappropriate implant installation (58%), damage to the implant surrounding tissue (29%), high service costs (6%), and other problems (7%). Also, the complainers were 50% women and 50% men and the dentists were 9% women and 91% men. Moreover, the judgements of Forensic Medical Commission were exoneration in 45% of the cases and negligence (55%) in the remaining cases.

This rate of failure in implant services was high, especially for non-specialized dentists. The results of the present study suggest taking necessary actions to reduce the problem.

Pain and complications are common after surgical removal of impacted third molars. The present study was undertaken to evaluate the effect of an oleous suspension of calcium hydroxide (OSTEORA) on pain severity and complications after surgical removal of impacted third molars. This clinical trial evaluated 30 patients with an age range of 17‒40, referring to a maxillofacial surgery department and two private clinics in Tehran in 2011‒2012 for surgical removal of bilaterally impacted third molars with the same difficulty index. OSTEORA was used on one side and no material was used on the contralateral side as the control. The effect of OSTEORA was evaluated on pain, healing, hemorrhage, dry socket and infection at different postoperative intervals in a double-blind manner. Data were analyzed with chi-squared and Mann-Whitney U tests (α=0.05). Of 60 samples, 28 were from the maxilla and 32 were from the mandible. Intensity of pain in the study groups at baseline and at follow-up intervals was the same (p value = 0.4). The incidence of hemorrhage at follow-ups was the same in both groups (p value < 0.5). Maxillary healing rates on the 3rd postoperative day in the control and test groups were 3.21±2.39 and 2.42±2.17, respectively (p value < 0.03) and on the 7th postoperative day they were 2.9±2.58 and 2.14±2.28, respectively (p value < 0.03). Healing in mandible in both groups was the same at follow-ups (p value < 0.2). No dry sockets and infection were observed in any subject. Under the limitations of the present study, use of an oleous suspension of calcium hydroxide had no effect on the incidence of hemorrhage and pain after surgical removal of impacted third molars. However, it affected healing of the surgical site, especially in the maxilla.

Cardiovascular disease and coronary disease is at the top of the main causes of death in developed and developing countries. In many studies have been done in recent years, the role of heart rate recovery (HRR) as a predictor of mortality in patients with efficient factor for coronary artery disease (CAD) and vascular involvement are well known. In this research relationship between HRR and significant CAD has been studied. This research is a diagnostic study. In this study patients from 2012/15/2to 2013/15/2 due to chest pain were referred to Loghman Hakim hospital were studied. Patients with atypical chest pain and positive exercise test underwent angiography. If the exercise test was negative nuclear scan also requested. If nuclear scan was negative, patients were considered Non-CAD. Patients with positive scan underwent coronary angiography. After exercise test HRR in minutes 1 and 2 was calculated. An independent interventionist who was unaware about ETT results interpreted angiographic results. In this study, a total of 106 patients were studied; who 41 patients(38.7%) were female and 65 patients(61.3%)were male.11 patients(10%) had abnormal HRR1 and 8 patients(8%) had abnormal HRR2.25 patients(23.6%)had significant CAD in angiography and 81 patients(76.4%) had non-significant CAD. Positive predictive value of first minute HRR was 83.2% and negative predictive value was 81.8%; and for second minute HRR time it was 80.6% and 75% sequentially and p-value was<0.9.It seems that there is no relationship between HRR and CAD and we can’t use HRR to predict significant CAD at least in this time.

Dental schools are known to be highly demanding and stressful learning environments that may affect the mental health of dental students. Stressors in dental schools are reported to be from different sources. The purpose of this study was to evaluate mental health and sources of stress among dental students in two different time intervals. This cross-sectional descriptive study was performed on two groups of clinical dental students at different time spans. In first and second group، 301 and 395 students were evaluated، respectively. General Health Questionnaire-28 (GHQ-28) was used in this study to assess mental status. Dental Environment Stress Questionnaire (DES) was also used to determine the stressors. Related factors such as personal characteristics and social factors were assessed. Data were analyzed using Chi-squer test. In the first group، 301 students (209 female and 92 male) with mean age of 23. 6±1. 9 and in the second group 395 students (290 female and 105 male) with mean age of 24. 2±2. 2 participated. In first and second group 60% and 56% had some degrees of psychological disorders، respectively. The most common stressors in the first group were faculty and administration، financial problems and work load. In the second group، the most common stressors were work load، faculty and administration، clinical procedures and professional future. Regarding the considerable incidence of mental involvement and distress among the students، it is recommended that faculty and administration authorities take action to reduce or adjust the stressors.