Journal of Dental Materials and Techniques最新文献_第9页

Removal of a Massive Pleomorphic Adenoma on the Palate Using Subtotal Maxillectomy: A Report of a Rare Case and Literature Review 上颌次全切除术切除腭部巨大多形性腺瘤1例并文献复习

Journal of Dental Materials and Techniques Pub Date : 2019-06-01 DOI: 10.22038/JDMT.2019.12372

S. Bakhtiari, Marziye Sehhatpour, M. Bakhshi, H. Sadeghi, S. Atarbashi-Moghadam

引用次数: 0

Cone Beam CT Evaluation of the Bony Changes in the Temporomandibular Joint and the Association with the Clinical Symptoms of Temporomandibular Joint Disorders 锥形束CT评价颞下颌关节骨改变及其与颞下颌关节疾病临床症状的关系

Journal of Dental Materials and Techniques Pub Date : 2019-03-01 DOI: 10.22038/JDMT.2018.12123

F. Maleki, A. Shokri, S. H. H. Zarch, Amirhossein Bahraniy, A. Ebrahimpour, Seyede Mona Alimohamadi

{"title":"Cone Beam CT Evaluation of the Bony Changes in the Temporomandibular Joint and the Association with the Clinical Symptoms of Temporomandibular Joint Disorders","authors":"F. Maleki, A. Shokri, S. H. H. Zarch, Amirhossein Bahraniy, A. Ebrahimpour, Seyede Mona Alimohamadi","doi":"10.22038/JDMT.2018.12123","DOIUrl":"https://doi.org/10.22038/JDMT.2018.12123","url":null,"abstract":"Introduction: Temporomandibular joint (TMJ) disorders are among the most prevalent abnormalities of the jaw, which affect the masticatory system, including the muscles, TMJ, and tendons. Clinical examination alone cannot determine the cause of temporomandibular disorder (TMD). In most cases, the cause of TMD and a proper treatment plan are determined based on imaging modalities. The present study aimed to investigate the bone changes in the patients with TMD symptoms using cone beam computed tomography (CBCT). Methods: This retrospective, cross-sectional study was conducted through recording data on the pain caused by TMJ (upon touching, using the TMJ, and maximum mouth opening), clicking, and crepitus using a checklist of clinical symptoms. CBCT images were examined for the associated bone changes, including sclerosis, flattening, erosion, and osteophyte. Data analysis was performed in SPSS version 21 using Chi-square and logistic regression analysis. Results: In total, 160 joint images were examined, including 132 cases of flattening (82.5%), 45 cases of sclerosis (28.12%), 41 cases of osteophytes (25.62%), and 66 cases of erosion (41.25%). A significant association was observed between pain and flattening, and sclerosis and osteophytes. Moreover, a significant correlation was observed between flattening and clicking (P<0.05). Conclusion: According to the results, flattening was the most common bone change in the patients with TMD. In addition, sclerosis had the most significant association with pain, while sclerosis, osteophytes, and erosion were significantly correlated with joint crepitation.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"43 1","pages":"25-32"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84741432","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

Agreement of Digital Panoramic Radiographs with and without Software Enhancement in the Diagnosis of roximal Dental Caries in Primary Molars 数字全景x线片加与不加软件增强诊断乳牙近端龋的一致性

Journal of Dental Materials and Techniques Pub Date : 2019-03-01 DOI: 10.22038/JDMT.2018.12057

S. Nemati, Seyedeh Tahereh Mohtavipour, S. Mohtavipour, Naghmeh Abdollahi

{"title":"Agreement of Digital Panoramic Radiographs with and without Software Enhancement in the Diagnosis of roximal Dental Caries in Primary Molars","authors":"S. Nemati, Seyedeh Tahereh Mohtavipour, S. Mohtavipour, Naghmeh Abdollahi","doi":"10.22038/JDMT.2018.12057","DOIUrl":"https://doi.org/10.22038/JDMT.2018.12057","url":null,"abstract":"Introduction: Dental caries is the most common chronic condition in children. Recently, there has been a growing tendency to using digital panoramic radiography among clinicians. The present study aimed to determine the accuracy of digital panoramic radiography with and without software enhancement in the diagnosis of proximal dental caries in primary molars. Methods: This study was conducted using 27 digital bitewings and panoramic radiography in 2016. Initially, panoramic radiography without enhancement was observed by a maxillofacial radiologist. Afterwards, sharpen, pseudocolor, emboss, and reverse-contrast enhancements were applied, and radiography was re-evaluated. In addition, bitewing radiography was investigated. After data collection, data analysis was performed in SPSS using the Kruskal-Wallis test and kappa coefficient agreement at 95% confidence interval. Results: No significant difference was observed between digital panoramic and bitewing radiography in the diagnosis of interproximal caries in primary molars. The maximum coefficient of agreement was obtained in maxillary and mandibular E (ƙ=0.893) and maxillary and mandibular D (ƙ=0.874 and ƙ=0.897, respectively). Moreover, no significant differences were denoted between the enhancement tools in the diagnosis of interproximal caries (P>0.05). In general, sharpen four was found to be the most powerful tool in this regard. Conclusion: According to the results, digital panoramic imaging system was as accurate as bitewing radiography in the diagnosis of proximal dental caries. However, using enhancement tools in panoramic radiography was not helpful in the diagnosis of caries.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"16 1","pages":"39-44"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88175122","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: 0

Comparative Evaluation of the Fluoride Recharge Ability of Two Glass Ionomers Obtained from Fluoridated Dentifrice and CPP-ACFP Paste: An In-vitro Study 含氟牙膏和CPP-ACFP膏中两种玻璃离聚体氟离子补给能力的体外比较研究

Journal of Dental Materials and Techniques Pub Date : 2019-03-01 DOI: 10.22038/JDMT.2018.12117

Karim Jafari, S. Hoseini, S. Hekmatfar

{"title":"Comparative Evaluation of the Fluoride Recharge Ability of Two Glass Ionomers Obtained from Fluoridated Dentifrice and CPP-ACFP Paste: An In-vitro Study","authors":"Karim Jafari, S. Hoseini, S. Hekmatfar","doi":"10.22038/JDMT.2018.12117","DOIUrl":"https://doi.org/10.22038/JDMT.2018.12117","url":null,"abstract":"Introduction: Glass ionomer cement (GIC) is a restorative material used in pediatric dentistry, which attaches to dental hard tissues and has cariostatic properties due to the ability for fluoride release. The present study aimed to assess the fluoride release and uptake capacity of two GICs in the presence of various fluoride sources. Methods: This in-vitro study was conducted on 120 disks composed of two GICs (Fuji II LC, Equia Forte System), which were prepared with the exact dimensions of 5×2 millimeters. Fluoride release ability of the samples was determined every 24 hours for seven days and weekly (days 7-21) using a combination of ion selective electrodes. The samples in each group were divided into three subgroups and subjected to no fluoride treatment, fluoridated dentifrice (once a day for one minute), and MI Paste Plus (once a day for one minute). After recharging the samples for seven days, the level of fluoride release was measured on days 1-7, 14, and 21. Results: The results of one-way analysis of variance indicated that the fluoride release ability of Fuji II was higher compared to that of EQUIA Forte (P<0.001). In addition, fluoridated dentifrice could recharge both the glass ionomers more significantly than the MI Paste Plus. Conclusion: According to the results, light-cured, resin-reinforced glass ionomers could release significantly higher levels of fluoride compared to EQUIA Forte. Moreover, the fluoride rerelease was higher by the GICs when recharged with fluoridated dentifrice compared to the MI Paste Plus.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"11 1","pages":"45-52"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85569763","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: 4

The Prosthetic Rehabilitation of Phthisis Bulbi Using Semi-customized Ocular Prosthesis: A Technical Note 使用半定制眼假体修复球疱疮:技术说明

Journal of Dental Materials and Techniques Pub Date : 2019-03-01 DOI: 10.22038/jdmt.2018.12128

M. Kavita, Gangwal Archita, Barjatya Saurabh, Dhalwani Bhumika

引用次数: 0

Processing Capability of Apatite-Mullite Glass-Ceramic Materials for the Production of Dental Restorations 磷灰石-莫来石玻璃陶瓷材料在口腔修复体生产中的加工性能

Journal of Dental Materials and Techniques Pub Date : 2019-03-01 DOI: 10.22038/JDMT.2018.12103

Hawa M Fathi, A. Johnson

{"title":"Processing Capability of Apatite-Mullite Glass-Ceramic Materials for the Production of Dental Restorations","authors":"Hawa M Fathi, A. Johnson","doi":"10.22038/JDMT.2018.12103","DOIUrl":"https://doi.org/10.22038/JDMT.2018.12103","url":null,"abstract":"Introduction: There is currently significant interest in all-ceramic dental restorations. A potential non-metallic material for such restorations is an apatite-mullite glass-ceramic that could be processed to shape using different processing techniques. The aim of this study was to assess and evaluate the ability of an apatite-mullite glass-ceramic material to be processed using three routes: lost-wax casting, hot pressing and CAD-CAM milling. Methods: A batch of glass for an apatite-mullite glass-ceramic material was produced based on the formula (4.5SiO2-3Al2O3-1.5P2O5-3CaO-0.5 CaF 2). The batch was converted into glass by heating at 1050˚C/1450˚C for two hours. The final melt was quenched to obtain a glass frit. The glass was thermally treated based on the DTA data. The sequence of crystallization and their micro structural evaluation were analysed using X-ray diffraction (XRD) and scanning electron microscopy (SEM). An anatomically correct mould of an upper right first molar was selected to trial the three different manufacturing techniques. Empress II and VITA block mark II materials were used as control materials. Results: The apatite-mullite material being evaluated can be cast and milled to shape, but the ceramic form of the material is not capable of being hot pressed. Conclusion: The materials tested show great possibility as restorative materials and could be heat treated inside and outside the investment casting material to produce a crystalline microstructure of apatite and apatite-mullite. It is possible to produce acceptable restorations using the milling technique. Hot pressing the material is not recommended due to its high liquidus temperature.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"5 1","pages":"19-24"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78573377","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: 0

Using Absorbable Gelatin Sponge to Facilitate Sinus Membrane Elevation during Open Sinus Lift: Technical Notes and Case Series 使用可吸收的明胶海绵促进窦膜提升在开放窦提升:技术说明和案例系列

Journal of Dental Materials and Techniques Pub Date : 2019-03-01 DOI: 10.22038/JDMT.2018.11873

Sahand Samieirad, M. Eshghpour, Elahe Tohidi, Anahid Jouya, Rashid Soufizadeh, H. Kermani

{"title":"Using Absorbable Gelatin Sponge to Facilitate Sinus Membrane Elevation during Open Sinus Lift: Technical Notes and Case Series","authors":"Sahand Samieirad, M. Eshghpour, Elahe Tohidi, Anahid Jouya, Rashid Soufizadeh, H. Kermani","doi":"10.22038/JDMT.2018.11873","DOIUrl":"https://doi.org/10.22038/JDMT.2018.11873","url":null,"abstract":"Ridge atrophy accompanied by the pneumatization of maxillary sinus in the maxillary posterior region may lead to inadequate bone height, thereby precluding implant placement. Therefore, it may be mandatory to perform a sinus membrane elevation procedure and augmentation in the bone. The present study aimed to introduce a novel modification method for sinus floor elevation using a gelatin sponge (Gelatamp, COLTENE ROEKO, India) in order for better visualization, hemostasis, and conservative maxillary sinus membrane dissection with the low risk of complications. Implant placement was performed in a case series of 28 patients with hyperpneumatized sinus or a moderately resorbed posterior maxillary alveolus. According to the findings, implant placement caused no complications in the patients. Furthermore, none of the patients experienced infections, sinusitis or graft and implant failure clinically and radiographically at the three- and six-month follow-up. Therefore, it could be concluded that gelatamp-assisted sinus lift is a simple, safe, noninvasive, and innovative technique for sinus membrane elevation. In addition, it is predictable and efficient, especially in the cases where piezoelectric surgery armamentarium is not available.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"3 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88298343","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: 5

Comparison of the Effect of Two Oral Hygiene Education Approaches on the Gingival Health and Dental Plaque of Boarding School Students in Fariman, Iran 两种口腔卫生教育方式对伊朗法里曼寄宿学校学生牙龈健康和牙菌斑的影响比较

Journal of Dental Materials and Techniques Pub Date : 2019-03-01 DOI: 10.22038/JDMT.2018.12124

F. Khorakian, T. Movahhed, Z. Mohammadzadeh

{"title":"Comparison of the Effect of Two Oral Hygiene Education Approaches on the Gingival Health and Dental Plaque of Boarding School Students in Fariman, Iran","authors":"F. Khorakian, T. Movahhed, Z. Mohammadzadeh","doi":"10.22038/JDMT.2018.12124","DOIUrl":"https://doi.org/10.22038/JDMT.2018.12124","url":null,"abstract":"Introduction: The school-based oral health programs are an opportunity to inspire positive attitudes and proper oral health behavior in students. The purpose of this study was to compare the effects of two oral health education methods on the oral health of boarding high school students in Fariman, Iran. Methods: In this interventional study, 345 students were randomly divided into three groups, namely self-led (control), teacher-led (instructed by teachers), and peer-led (instructed by students). All students were subjected to Simplified Oral Hygiene Index (OHI-S), Gingival Index (GI), Plaque Index (PI) measurements before and three months after the intervention. The data were analyzed using the paired t-test, the Kruskal-Wallis, and the Chi-square tests. The P-value less than 0.05 was considered to be significant. Results: The results of the study showed a significant decrease regarding the scores of all three indices (P<0.001) in the peer-led group, compared to the self-led intervention. According to the paired sample t-test analyses following the intervention, there was a significant decrease in the mean OHI-S , GI, and PI in all three groups (P<0.001), peer-led group (P<0.001), and peer-led and self-led groups (P<0.001), respectively. Conclusion: Due to the significant decline in all three indices of the peer-led group compared to the other two groups, using talented students as “oral and dental health assistants” may be an effective approach for promotion of oral and dental hygiene among teenagers. However, there is aneed to conduct more research in this field of study.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"74 1","pages":"33-38"},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90848276","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

Tooth Brushing in Children 儿童刷牙

Journal of Dental Materials and Techniques Pub Date : 2018-12-01 DOI: 10.22038/JDMT.2018.11584

F. Atarbashi-Moghadam, S. Atarbashi-Moghadam

引用次数: 6

An In vitro Evaluation of Antimicrobial Efficacy of new Nano-zinc Oxide Eugenol (NZOE) 新型纳米氧化锌丁香酚(NZOE)的体外抗菌效果评价

Journal of Dental Materials and Techniques Pub Date : 2018-12-01 DOI: 10.22038/JDMT.2018.11586

M. Zarei, M. Javidi, M. Gharechahi, M. Joybari, P. Tajzadeh, M. Arefnejad

{"title":"An In vitro Evaluation of Antimicrobial Efficacy of new Nano-zinc Oxide Eugenol (NZOE)","authors":"M. Zarei, M. Javidi, M. Gharechahi, M. Joybari, P. Tajzadeh, M. Arefnejad","doi":"10.22038/JDMT.2018.11586","DOIUrl":"https://doi.org/10.22038/JDMT.2018.11586","url":null,"abstract":"Introduction: This interventional in-vitro study aimed to evaluate the antimicrobial activity of a new Nano Zinc OxideEugenol (NZOE) sealer in comparison with AH26 and Pulpdent common root canal sealers against endodontic pathogens. Methods: The antimicrobial efficacy of three sealers(NZOE, AH26 and Pulpdent) against Enterococcus faecalis (ATCC 29212), Escherichia coli (ATCC 25922), Streptococcus mutans (ATCC700610), Candida albicans (ATCC 90028), and Staphylococcus aureus (ATCC 25923) were evaluated by Direct Contact Test (DCT) at five different time intervals 0, 2, 14, 48 hours and 7 days. The results were statistically analyzed using SPSS software and Kruskal–Wallis at 5% significance level. Results: All three tested sealers had antimicrobial activity against microorganisms involved in this study. Fresh NZOE sealer eliminated all microorganisms tested, except the strain of E. faecalis colony which was reached to zero after 2 hours. However, AH26 and Pulpdent failed to completely kill all of the E. faecalis colony during the entire observation period. Also, NZOE showed a significant antimicrobial action (P<0.05) in comparison with other two sealers by effectively eliminating the Candida albicans colonies at zero time and 7 days. Conclusion: Highest antimicrobial effect of NZOE sealer was shown followed by Pulpdent sealer and AH 26 against Candida albicans and Enterococcus faecalis.","PeriodicalId":15640,"journal":{"name":"Journal of Dental Materials and Techniques","volume":"5 1","pages":"167-173"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82137058","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