Saudi Journal of Oral Sciences最新文献_第9页

Assessment of knowledge regarding prescription of drugs among BDS interns BDS实习生药物处方知识评估

Saudi Journal of Oral Sciences Pub Date : 2020-05-01 DOI: 10.4103/sjos.sjoralsci_95_19

Surekha Rathod, Ishita Roy, P. Bawankar, Krutika Deshmukh, Vaishnavi Gadbail

引用次数: 0

Saudi Journal of Oral Sciences Pub Date : 2020-05-01 DOI: 10.4103/sjos.sjoralsci_89_19

A. Parampill, Parth Shah, Rupinder Bhatia, Charu Girotra, Reetika Rastogi

引用次数: 2

Visualization of enamel rods in hunter-schreger bands and enamel in incipient lesion under polarized and light microscopy 在偏光显微镜和光镜下观察猎人-施雷格带的牙釉质棒和早期病变的牙釉质

Saudi Journal of Oral Sciences Pub Date : 2020-05-01 DOI: 10.4103/sjos.sjoralsci_93_19

Sandhya Tamgadge, T. Pereira, A. Tamgadge

{"title":"Visualization of enamel rods in hunter-schreger bands and enamel in incipient lesion under polarized and light microscopy","authors":"Sandhya Tamgadge, T. Pereira, A. Tamgadge","doi":"10.4103/sjos.sjoralsci_93_19","DOIUrl":"https://doi.org/10.4103/sjos.sjoralsci_93_19","url":null,"abstract":"Background: An enamel rod is the basic unit of tooth enamel measuring 4 μm wide to 8 μm high and is tightly packed, highly organized mass of hydroxyapatite crystals, which are hexagonal in shape and provide rigidity to the rods and strengthen the enamel. In cross section, it is best compared to a keyhole with the top, or head, oriented toward the crown of the tooth and the bottom, or tail, oriented toward the root of the tooth. Enamel rods are found in rows along the tooth. The arrangement of crystals within each enamel rod is highly complex and gives rise to Hunter–Schreger Bands. This article presents enamel rods in Hunter–Schreger Bands under light microscopy and polarized microscopy which has rarely been reported with additional note on incipient lesion visualized under polarized microscopy. Aim: 1. To visualize enamel rods in Hunter–Schreger Bands under light microscopy and polarized microscopy. 2. Visualization of Zones of enamel in incipient lesion under polarized microscopy. Materials and Methods: Two ground sections were prepared. One normal (without lesion) and the other one was having incipient lesion (white spot). Normal tooth was visualized under light and polarized microscopy under x4,x10,x40,x100 under a light microscope, Leica research microscope (Leica application suite [LES]core version 3.8) of Leica research microscope (Model No. DM1000 LED, Leica Microsystems GmbH Ernst-Leitz-Stra e17–37 | 35,578 Wetzlar [Germany]) and tooth with incipient lesion was visualized under polarized microscopy. Conclusion: Basic mechanism of Hunter Schreger bands can be studied at light microscopy. Zones of enamel in incipient lesion too, was clearly evident under polarized microscopy.","PeriodicalId":32335,"journal":{"name":"Saudi Journal of Oral Sciences","volume":"17 1","pages":"76 - 79"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79499700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Exploring study skills among university students in Riyadh, Saudi Arabia 探索沙特阿拉伯利雅得大学生的学习技巧

Saudi Journal of Oral Sciences Pub Date : 2020-05-01 DOI: 10.4103/sjos.sjoralsci_87_19

Ashraf Kamel, Fathy A. Behery, G. Kenawy, Tarek El Ghamrawy, Mohamed Ali, Mohamed Nasr, M. Shaheen, R. Shatat, Mohammed Baag

{"title":"Exploring study skills among university students in Riyadh, Saudi Arabia","authors":"Ashraf Kamel, Fathy A. Behery, G. Kenawy, Tarek El Ghamrawy, Mohamed Ali, Mohamed Nasr, M. Shaheen, R. Shatat, Mohammed Baag","doi":"10.4103/sjos.sjoralsci_87_19","DOIUrl":"https://doi.org/10.4103/sjos.sjoralsci_87_19","url":null,"abstract":"Introduction: Study skills are vital for academic performance. This study aims to explore the study skills of the students in Riyadh Elm University (REU), Riyadh, Saudi Arabia and to identify possible correlations of students' study skills with gender, academic level, and/or study field. Materials and Methods: A total of 816 students participated in this study from April 25, 2015 to May 25, 2015. A modified study skills assessment questionnaire of Counseling Centre of Houston University was used in this study. The questionnaire consisted of 32 items distributed in eight domains. The students' responses were recorded on a 4-point Likert scale and the data were analyzed using descriptive statistics, and independent t-test. Results: The obtained responses were 816. The mean score of REU students' total study skills indicated moderate study skills. Good study skills were scored by 213 students (26.10%); moderate study skills by 574 students (70.34%); and poor study skills by 29 students (3.55%). Little variation in the mean study skills because of gender, study field or academic level was found. The highest scores were in domains II and IV (concentration/memory and test strategies/test anxiety) while the least scores were in domains and VII (reading and writing). Statistically significant differences were observed between male and female students in domain VI (motivation/attitude), between dental and nondental students in domains II and V (concentration/memory and organizing/processing information) and between junior and senior students in domains I, III, II, and VI (time management, concentration/memory, study aids/note taking, and motivation/attitude). Conclusion: The majority of REU students employed study skills at a moderate level. It is recommended to design and incorporate study skills educational courses for students in academic curricula.","PeriodicalId":32335,"journal":{"name":"Saudi Journal of Oral Sciences","volume":"30 1","pages":"90 - 98"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72793344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Maxillary calcifying epithelial odontogenic tumor 上颌钙化上皮性牙源性肿瘤

Saudi Journal of Oral Sciences Pub Date : 2020-05-01 DOI: 10.4103/sjos.sjoralsci_27_19

P. Bindhu, Rekha Krishnapillai, P. Thomas

引用次数: 1

Interceptive orthodontics for malaligned anteriors due to supplemental lateral incisor 补侧切牙导致前牙不对准的截齿正畸治疗

Saudi Journal of Oral Sciences Pub Date : 2020-05-01 DOI: 10.4103/sjos.sjoralsci_2_20

Heena Sarangal, R. Namdev, M. Rohilla

引用次数: 0

Assessing the dimensional accuracy of the resultant casts made from monophase, one-step, two-step, and a novel two-step putty light body impression technique – An in vitro study 评估由单相、一步、两步和一种新的两步腻子轻体压模技术制成的铸件的尺寸精度-一项体外研究

Saudi Journal of Oral Sciences Pub Date : 2020-05-01 DOI: 10.4103/sjos.sjoralsci_94_19

H. Shivakumar, S. Manvi, Ulhas N Amasi, Sounyala Rayannavar

{"title":"Assessing the dimensional accuracy of the resultant casts made from monophase, one-step, two-step, and a novel two-step putty light body impression technique – An in vitro study","authors":"H. Shivakumar, S. Manvi, Ulhas N Amasi, Sounyala Rayannavar","doi":"10.4103/sjos.sjoralsci_94_19","DOIUrl":"https://doi.org/10.4103/sjos.sjoralsci_94_19","url":null,"abstract":"Background: The clinical success of fixed prosthodontics and dental implants is dependent on the dimensional accuracy of the impression obtained. Although there are many studies on different impression materials and the accuracy of the dies, only a few studies on the techniques of impression making hence this study was taken to evaluate and compare the dimensional accuracy of casts made from four different impression techniques. Aim: This study aims to assess the dimensional accuracy of the resultant casts made from a monophase, one-step, two-step, and novel two-step putty light body impression technique. Settings and Design: An in vitro study. Materials and Methods: A stainless steel model of two abutments with specific distance was fabricated. An impression of this model was made with four different impression techniques using a polyvinyl siloxane impression material using custom made trays. Ten impressions were made with each impression technique. Total 40 impressions made and casts poured with type IV gypsum, and accuracy of the casts measured using a traveling microscope. Three dimensions, i.e., diameter, height, and inter-abutment distance measurements were obtained. Statistical Analysis: The statistical analysis was done using one-way ANOVA and Student Newman-Keuls test. Results and Conclusion: The casts obtained from all four techniques had significant differences in dimensions as compared to that of the master model. The order for highest to lowest accuracy from, the stainless steel model was; monophase < one-step < two-step < two-step injection technique. The two-step and two-step injection techniques produced the most accurate cast, with the two-step injection technique performance being better than the two-step technique casts obtained.","PeriodicalId":32335,"journal":{"name":"Saudi Journal of Oral Sciences","volume":"18 1","pages":"99 - 106"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77202588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of varnish containing casein phosphopeptides-amorphous calcium phosphate and fluoride on surface microhardness of enamel – An in vitro study 含酪蛋白磷酸肽-无定形磷酸钙和氟化物清漆对牙釉质表面显微硬度的影响

Saudi Journal of Oral Sciences Pub Date : 2020-01-01 DOI: 10.4103/sjos.SJOralSci_43_19

KL Girish Babu, P. Subramaniam, Sangeeta Teleti

{"title":"Effect of varnish containing casein phosphopeptides-amorphous calcium phosphate and fluoride on surface microhardness of enamel – An in vitro study","authors":"KL Girish Babu, P. Subramaniam, Sangeeta Teleti","doi":"10.4103/sjos.SJOralSci_43_19","DOIUrl":"https://doi.org/10.4103/sjos.SJOralSci_43_19","url":null,"abstract":"Background: Fluoride varnish is one of the professionally applied topical fluoride agents. The ease of application of fluoride varnishes has led to its popularity in pediatric dentistry. Aim: The aim of the study is to evaluate and compare the effect of varnish containing casein phosphopeptides-amorphous calcium phosphate (CPP-ACP) and fluoride (MI Varnish®) with that of varnish containing only fluoride (Fluor Protector®) on surface microhardness (SMH) of enamel. Materials and Methods: Enamel blocks were cut from the 90 premolar teeth samples. The samples were divided into three Groups (A, B, and C) consisting of 30 blocks each. Varnish containing CPP-ACP with fluoride was applied on samples of Group A and varnish containing only fluoride was applied on the samples of Group B. Group C was used as control group; without any varnish application. After varnish application, these samples were subjected to pH cycling. Following, SMH was assessed using SMH tester machine. Results: The mean values of SMH for Group A were 488 ± 6 vickers hardness number (VHN), Group B were 485 ± 12 VHN, and Group C were 448 ± 12 VHN. Conclusion: There was no significant difference in the SMH of enamel between the varnish containing CPP-ACP and fluoride, with that of varnish containing only fluoride.","PeriodicalId":32335,"journal":{"name":"Saudi Journal of Oral Sciences","volume":"46 1","pages":"29 - 34"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85984561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A cross-sectional study to assess the level of dental anxiety prevailing in undergraduate dental students in Riyadh Elm University 一项评估利雅得榆树大学牙科本科学生牙科焦虑水平的横断面研究

Saudi Journal of Oral Sciences Pub Date : 2020-01-01 DOI: 10.4103/sjos.SJOralSci_32_19

U. Muhammad, J. Rajan

{"title":"A cross-sectional study to assess the level of dental anxiety prevailing in undergraduate dental students in Riyadh Elm University","authors":"U. Muhammad, J. Rajan","doi":"10.4103/sjos.SJOralSci_32_19","DOIUrl":"https://doi.org/10.4103/sjos.SJOralSci_32_19","url":null,"abstract":"Objective: This study was designed to evaluate dental anxiety (DA) level in undergraduate dental students in Riyadh Elm University and its relation with gender and to assess whether the level of DA changes over the whole course of study. Materials and Methods: In this cross-sectional study, the self-reported Modified DA Scale (MDAS) questionnaire was used. The minimum and maximum scores, scored from MDAS, were 5 and 25, respectively. The level of DA was categorized into less anxious (5–11), moderately anxious (12–18), and severely anxious (≥19). Results: The overall response rate was 86% (158 males and 274 females). The mean MDAS from all the participants was 12.06, with 4% of males and 7% of females being severely anxious and 53% of males and 60% of females being moderately anxious. The females were reported to be more anxious than males (P < 0.05). The level of anxiousness was significantly decreasing (P = 0.000) with each successive year of the study. The most anxious situation of all dental procedures was the injection of local anesthesia, followed by noise generated from dental instruments. Conclusion: Female undergraduate dental students and preclinical students were more anxious when compared with males and students of the clinical years, respectively. There is a need for proper dental health education, exposure to clinics, and counseling therapy from the early years of dental training to reduce the level of anxiety.","PeriodicalId":32335,"journal":{"name":"Saudi Journal of Oral Sciences","volume":"41 1","pages":"35 - 39"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86053876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Bioactive glass in dentistry: A systematic review 生物活性玻璃在牙科:系统回顾

Saudi Journal of Oral Sciences Pub Date : 2020-01-01 DOI: 10.4103/sjos.SJOralSci_56_19

Kashmira Sawant, Ajinkya M. Pawar

{"title":"Bioactive glass in dentistry: A systematic review","authors":"Kashmira Sawant, Ajinkya M. Pawar","doi":"10.4103/sjos.SJOralSci_56_19","DOIUrl":"https://doi.org/10.4103/sjos.SJOralSci_56_19","url":null,"abstract":"Bioactive glass (BAG) is a benevolent biocompatible material used as an adjunct to various materials used in dentistry. BAG is proved to have a beneficent effect in promoting material–tissue bond. The objective is to analyze significant information available in the literature regarding application of BAG in dentistry. A literature search of electronic databases, including PubMed, Google Scholar, and ResearchGate using the keywords: (Dentifrice OR Dentifrices) OR (Toothpaste OR Toothpastes) AND (Treatment) AND (Dentin OR Dentine OR Tooth) AND (Hypersensitivity OR Sensitivity) AND (Dentifrício OR Dentifrícios) AND (Tratamento OR Tratamentos) AND (Dentinária OR Dentina OR Dente) AND (Hipersensibilidade OR Sensibilidade). The papers found were analyzed regarding title and abstract contents to eliminate the ones that were out of context and not relevant to the review. After this first filter, 31 papers were selected, in which the full-text available was considered of good quality and relevant to the context. The languages of the papers were predominantly English and articles published before 1999 were excluded. The material BAGs are currently used for implant coating, bone grafting, dentin desensitizer, and restorative materials. The current paper reviews the significant developments of BAGs in clinical application, especially dentistry.","PeriodicalId":32335,"journal":{"name":"Saudi Journal of Oral Sciences","volume":"18 1","pages":"3 - 10"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84497870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8