Journal of Dental School
Volume:36 Issue: 2, Spring 2018

Objectives: Today, creating a balanced and attractive smile is the main goal of treatment in modern orthodontics. The buccal corridor is one of the controversial aspects of the smile attractiveness. The aim of this study was to compare the impact of buccal corridor on smile attractiveness of women with Mesoprosopic, Leptoprosopic, and Euryprosopic face types, from the perspective of orthodontists, prosthodontists, Dental and non-dental students. Methods: In this comparative cross-sectional study, Photos were taken from 3 women with different face types and by making some changes in these photos, 5 buccal corridors (2%, 10%, 15%, 22%and 28%) were created for each one. Eventually, in order to survey, each 15 pictures were provided to individuals in the study group. Statistical analysis was performed by SPSS21 software, using K-S (Kolmogorov-Smirnov), Kruskal Wallis and Mann Whitney tests.p-value<0.05 was considered significant. Results: Orthodontist and non-dental students considered that nearly wide smile for leptoprosopic face shape and wide smile with the minimum buccal corridor for variety of mesoprosopic and euryprosopic face shapes have the most attractiveness (p<0.05). Prosthodontists considered wide and narrow smiles as the least attractive regarding all types of faces (p<0.05). Conclusion: Face shapes did not have a significant impact on the selection of the most attractive smile by prosthodontists, while orthodontists and non-dental students shared a similar view on the selection of the most attractive smile regarding the face shape

Objectives: Pre- and post-sedation effect of oral Midazolam to promethazine in2-6 yrs old fearful children for dental treatment Methods: This randomized clinical trial was carried out on a group of 26 children aged 2-6 years referred to the dental school due to their fear and multiple dental needs. Patients were selected from ASA I or II classification and scored 1 in Frankl Behavior scale. Each patient was scheduled for two subsequent visits to receive one of the two pre medications before IV sedation. Each patient served as self-control and randomly assigned to either group A: receiving Midazolam oral as premed in 1st visit or group B: receiving Promethazine oral as the premed in 1st visit. Six hour NPO was instructed prior to sedation visit. Monitoring vital signs were conducted at every 15 minutes starting with base line before any drug administration. Sedation score was recorded using Houpt Sedation scale. Post sedation problems were recorded by operator. Data were analyzed using Student t test and Kruskal Wallis. Results: No significant difference was noted between the patient perceptions at the two different visits. Children did not show a significant difference on symptoms such as Crying, Movement, Sleep and overall behavior in two visits at the first 15 minutes of sedative injection. Post-operative complications were having no significant difference. Lower sickness and vomiting were reported following promethazine intake. Conclusion: Promethazine seems to be as effective and as acceptable premedication as Midazolam in pediatric dentistry

Objectives: To evaluate barriers for production of scientific dental articles by Iranian dental faculty members. Methods: An anonymous self-administered questionnaire distributed among faculty members of all dental schools in Iran during June-December 2010. The respondents rated their level of agreement with eleven sentences regarding what they perceive as barriers on scientific dental article production based on a 5-point Likert scale. The data were analyzed using Chi-square test. Results: Totally, 330 faculty members completed the questionnaires; >50% were men, and >40 year-olds. About three-fourth of the respondents were assistant professor. More than 80% of the respondents reported to have at least one published Persian article and >50% at least one published English article; older faculty members more than younger, and associate professors more than other academic ranks (p<0.01). “No access to an English editing center”, “insufficient skill for scientific writing in English”, “inappropriate condition for writing in dental school”, and “time limit due to high load of clinical work in dental school” were top four rated perceived barriers. Conclusion: The concerns of faculty members for the production of scientific dental documents must be considered. Provision of proper time and condition for writing in the dental school, enhancement of their capacity for scientific writing and establishment of an English editing center in each university may facilitate scientific article production

Objectives: Oral health is a major component of overall health improvement and well-being. A large number of children are suffering from Early Childhood Caries (ECC). Parental knowledge and level of education can improve their child’s oral health care leading to reduction of ECC incidence. The aim of this study was to evaluate the level of education and knowledge in a group of parents, having three year old children, on ECC occurrence. Methods: A total of eight hundred and fifteen, three-year-old children were recalled using pregnancy records available in healthcare centers of Varamin city, Iran. Dental examinations were performed by two calibrated senior dental students using decayed missed filled teeth (dmft) index using WHO standard method available. Parents’ knowledge, level of education and their opinion on their child/children‘s oral health care were recorded using WHO questionnaire. An independent T-test, Chi-square test and zero inflated Poisson regression was applied for statistical analysis. Results : The mean dmft was 2.69 (±3.492, range 0-19) while 43.4% were caries free. In total, 85% of parents had high levels of education (above high school diploma) and 15% had low levels of education (bellow high school diploma) including illiterates. Children of parents with higher level of education, experienced less dental caries although this difference was not significant (p>0.05). Conclusion: More than half of the three-year-old children living in Varamin city had some degrees of dental caries. Dental caries experience among participating children was rather high, despite most parents were educated

Objectives: One of the economical ways of dental caries prevention is using fluoride containing toothpastes. For fluoride to be effective in toothpastes, significant amount of fluoride need to be in solution form. Global standard of fluoride content of toothpastes is 1500 ppm (part per million).This study aimed to determine fluoride content of some special toothpastes. Methods : This research was cross-sectional and laboratory study. In this study five brands of different toothpastes including: Crest, Sensodyne, Colgate, Unique, Beam were provided and total fluoride of each was determined using ion-selection method and then the fluoride content of each brand compared to the global standard amount. The data was analyzed byone sample t-test at 0.05 level of significance. Results: Sensodyne had 735 ppm, Beam got 76.12, Colgate got 1195 ppm, Unique got 426 ppm and lastly Crest had 1605.70 amount of fluoride in their composition. Quantitative analysis indicated total fluoride content of Sensodyne ,Beam, Unique were significantly below global standard at 0.05 level (p<0.05) in terms of fluoride content whereas total fluoride content of Crest and Colgate had no significant difference with global standard (p<0.05). Conclusion : The results showed that Crest and Colgate met the standard of global fluoride content

Objectives: The aim of this research was to examine the reasons for the need to change and bring about integration in the dental curriculum in Iran and worldwide. Methods: The qualitative method was used in this research. The real experiences of some reliable universities over the world and in Iran were studied on the necessity to change the dental curriculum and the integrated curriculum through library studies. In addition, the information obtained from this study was analyzed and interpreted based on the theoretical reasoning and empirical achievements of the authoritative and reliable universities. Results: The result of the examination of these experiences of the various universities on the modification and integration of the dental curriculum showed that the high cost of education in this discipline and dissatisfaction of the students with the teaching methods in this field were among the most important reasons for the change in the dental curriculum in Iran and globally. The integrated pattern of the curriculum of the universities was associated with the positive consequences on the review and applied changes in the dental curriculum. Conclusion : In total, the axis of the activities of changing and modifying the curriculum in these universities was established by the focus on the integrated approaches, including " educating research", "the evidence-based dental”, and "entering new knowledge in the dental curriculum

Objectives: Maxillary implant-supported over-denture is a suitable treatment where conventional denture cannot be used. Few studies are available on maxillary over-denture while more are available on mandibular over-denture with no literature referring to attachment selection in maxillary over-dentures.The objective of this literature review was to see attachment selection strategies in maxillary over-denture and its effect on success rate several successes contributing factors were noted including survival rate, marginal bone loss, soft tissue problems, fracture, and retention of maxillary over-denture. Methods: This review study was conducted on available article discussing maxillary implant over-denture. An online comprehensive search was performed on PubMed, Scopus, ScienceDirect, and Google Scholar is using the following key words “implant supported over-denture” and “attachments” from 2000 to 2016, with total 78 articles being obtained. Results: Studies including the attachment selection and maxillary implant over-denture were prioritized. Articles that were not peer reviewed were excluded. In total 78 articles were included for initial evaluation among which, with only 35 articles were judged as related to maxillary Over-denture topic and used for evaluation and report. Conclusion: Based on the reviewed articles result, the attachments type has a profound effect on the overall success rate. The number and position of implants and corresponding soft tissue are also influenced by attachment selection

Objectives: Amelogenesis imperfecta (AI) comprises a clinically and genetically heterogeneous group of conditions that affects the dental enamel, occasionally in conjunction with other dental, oral, and extra oral tissues. The purpose of this case report was to describe the necessity of the multidisciplinary approaches taken to treat a young patient diagnosed with hypocalcified-type of amelogenesis imperfecta along with skeletal class III jaws relationship and anterior open bite.
Case A 19 year-old female was presented to the department of orthodontics, School of Dentistry at Shahid Beheshti University of Medical Sciences (Tehran, IRAN) with the chief complaints of dental sensitivity to hot and cold, teeth discoloration leading to esthetic concerns. On examination the patient was confirmed as skeletal CL III with a long face syndrome and severe anterior open bite. The patient reported difficulty with mastication and poor self-image due to teeth appearance .Interdisciplinary team approach was proposed in a three phase treatment plan: pre-surgical treatment, surgical treatment, postsurgical treatment. This approach enabled the team to successfully improve the patient’s facial profile, resolve malocclusion, and normalize the aesthetic. Conclusion: This case management revealed the importance of having a coordinated team approach consist of orthodontist, oral surgeon, and prosthodontist as a necessary key to a successful treatment. This approach is essential for successful management of structural, aesthetic, and functional issues as well as an achievement of high patient’s satisfaction