Dentistry (Sunnyvale, Calif.)最新文献

{"title":"The Evaluation of the Prevalence and Intensity of Dental Caries in β-thalassemia Major Patients","authors":"Shadlinskaya R.V., Zeynalova G.K.","doi":"10.35248/2161-1122.19.9.545","DOIUrl":"https://doi.org/10.35248/2161-1122.19.9.545","url":null,"abstract":"","PeriodicalId":90816,"journal":{"name":"Dentistry (Sunnyvale, Calif.)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69983155","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}

{"title":"Fabrication of Mouthguard Using Digital Technology","authors":"Tsukasa Yanagi, Kae Kakura, T. Tsuzuki, Kouta Isshi, Y. Taniguchi, T. Hirofuji, H. Kido, M. Yoneda","doi":"10.4172/2161-1122.1000531","DOIUrl":"https://doi.org/10.4172/2161-1122.1000531","url":null,"abstract":"Background: Frequent re-fabrication of sports Mouthguards (MGs) due to breakage, loss, etc., causes reimpression taking and model storage problems. Problems with reproduction accuracy also occur because of thickness differences resulting from a variety of effects during fabrication. Therefore, we suspected that an MG with a high level of reproduction accuracy can be fabricated through digital technology to solve these problems. The purpose of this study is to investigate whether high elastic rubber MG can be manufactured using a 3D printer and its accuracy. Materials and Methods: In this study, the same ready-made plaster model was used as the master model. We used a dental scanner to scan a plaster model, and obtained an STL data of the plaster model. Then, we used software to design an MG which has 2.5 mm thickness onto the STL data, and fabricated high-elastic silicone rubber MGs (Digital-MGs) using a 3D printer. We made Conventional Mouthguards (CMGs) which were made from 4 mm thickness EVA sheet as controls. We measured the thickness of the left and right medial-tooth labial side and occlusal surface, first molar buccal side, and occlusal surface, totaling eight places. Each thickness was expressed as mean ± standard deviation (mean ± SD) and statistical analysis carried out in each group. Results: The result of measurement was 2.49 ± 0.22 mm in CMGs group, 2.51 ± 0.04 mm in Digital-MG group. We found area-specific significant differences in the CMGs group, but there was no difference in the Digital-MG group. Digital-MGs were shaped as designed. Discussion and Conclusion: Due to the problem of model storage and re-impression, application of digital technology such as optical impression and 3D printer to MG fabrication is considered to be useful, and it seems that there is no problem with fabrication accuracy. We believe this will enable the fabrication of MGs with high reproducibility and lead to greater accuracy in MG research.","PeriodicalId":90816,"journal":{"name":"Dentistry (Sunnyvale, Calif.)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70613426","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}

{"title":"Health from the Hive: 5% Propolis Mouth Wash as an Adjunct in the Treatment of Chronic Generalized Gingivitis-A Randomized Controlled Clinical Trial","authors":"Krishna Kripal, S. Manjunath, Shivanagendra Sm, Devendra Kumar Sm, Soma Shekar Sm, S. Bhavanam, Kavita Ch, rasekaran, Aiswarya Dileep, Shilpa Sm","doi":"10.4172/2161-1122.1000533","DOIUrl":"https://doi.org/10.4172/2161-1122.1000533","url":null,"abstract":"Background: Gingival diseases affect 80% of the adult population in India and are considered to be plaque initiated inflammatory conditions with the presence of pathogenic bacteria. The term, Gingivitis means inflammation of the gums or gingiva. Gingivitis is a non-destructive type of periodontal disease if left untreated gingivitis can progress to periodontitis. Thus it can eventually lead to loss of teeth. It is a well-known fact that all periodontitis are initiated by gingivitis. Objectives: To assess the effectiveness of 5% propolis mouth wash in chronic generalized gingivitis and also to evaluate and compare the effectiveness of 5% propolis mouth wash with respect to the chlorhexidine mouth wash. Method: A total of 45 randomly selected patients (lottery method) between the age group of 18-70 years were selected for the study and grouped as follows: Group I with 15 patients who were treated with 5% propolis mouth wash. Group II with 15 patients were treated with chlorhexidine mouth wash controlled group and Group III with 15 patients were treated with normal saline (placebo). Result: The results indicated that there was a significant improvement in clinical parameters (p<0.05) in group 1 at the end of the study. Conclusion: Our study data showed that propolis mouthwash is more effective than other mouth washes on plaque accumulation and gingival inflammation. The study suggests that propolis can be used as a natural mouthwash, an alternative to chemical mouthwashes, e.g., chlorhexidine.","PeriodicalId":90816,"journal":{"name":"Dentistry (Sunnyvale, Calif.)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70613176","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}

{"title":"Individualized Treatment Plan for Gingival Enlargement: A Case Series","authors":"Shivan, Aspalli, Shirin A Mulla, Reetika Gaddale, G Nagappa","doi":"10.4172/2161-1122.1000537","DOIUrl":"https://doi.org/10.4172/2161-1122.1000537","url":null,"abstract":"Gingival enlargement is a frequent characteristic of gingival disease produced by excessive growth of gingival tissues or gingival inflammation or amalgamation of both with a distinctive spot in relevant works and has been linked to numerous factors like inflammation, medications, neoplasia, hormonal disturbances, and heredity. The following case series highlights four cases of gingival enlargement, one being Phenytoin-induced, second Amlodipine induced combined with inflammatory enlargement, third inflammatory gingival enlargement and the fourth being inflammatory gingival enlargement combined with mouth breathing. Management per case is different due to different etiologic factors. Hence, for all the cases first, a non-surgical approach was carried out and depending upon the enlargement resolution further surgical procedures with electrosurgery or gingivectomy were performed. Thus, a proper diagnosis with a thorough treatment plan can lead to effective case management.","PeriodicalId":90816,"journal":{"name":"Dentistry (Sunnyvale, Calif.)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70613141","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}

{"title":"Relationships between Changes in Posterior Occlusal Support Status and Risk of Protein-energy Malnutrition among the Japanese Community-dwelling Elderly","authors":"Ayako Nonomura, K. Nohno, H. Ogawa","doi":"10.4172/2161-1122.1000534","DOIUrl":"https://doi.org/10.4172/2161-1122.1000534","url":null,"abstract":"Objective: Protein-Energy Malnutrition (PEM) among the elderly limits the daily activities and leads to a bedridden state. Oral health status in the elderly can be one of the PEM indicators. We aimed to assess the correlation between changes in posterior occlusal support status and the incidence of PEM over a 5-year period in the Japanese community-dwelling elderly. Materials and Methods: Two hundred and seventy-two subjects aged 75 years in 2003 were followed up in 2008. Posterior occlusal support without dentures in 2003 and 2008 was categorized into one of three groups based on the number of occlusal support zones (OSZ) present. According to the Eichner’s Index and changes in the values over 5 years, five groups were defined for the main exposure variables: 1) Complete: four OSZ remaining, 2) Moderate: one to three OSZ remaining, 3) Lost support: no OSZ remaining, 4) Early change: change from four to one to three OSZ, and 5) Late change: change from one to three to no OSZ. For the outcome variables, the rates of changes in protein intake, total energy intake, and BMI over 5 years were calculated and divided into two groups. The nutrition status for malnutrition was defined as A) IPE: the rates of changes in protein and total energy intake were less than or equal to the median and B) IPEB: the rates of changes in the three items were less than or equal to the median. Results: Male subjects whose posterior OSZ decreased from four to one to three over 5 years had a significantly higher risk of IPE and IPEB than those in other groups (odds ratio: 4.0 for IPE and 4.3 for IPEB). Conclusion: Male elderly participants who lost posterior occlusal support zones over 5 years experienced a decrease in protein intake and had an increased risk of PEM.","PeriodicalId":90816,"journal":{"name":"Dentistry (Sunnyvale, Calif.)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70613226","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}

{"title":"Knowledge, Attitude and Practice of Radiation Protection Protocols amongst Students of a Dental College","authors":"R. Rela","doi":"10.4172/2161-1122.1000530","DOIUrl":"https://doi.org/10.4172/2161-1122.1000530","url":null,"abstract":"Objective: To assess the knowledge, attitude and practice of radiation protection among dental students in a dental college in eastern India. Background: Radiation hazard is one of the major challenges of modern dental practices. Reliance on radiation imaging has increased tremendously during recent years. The effect of radiation on human being is very negative. Knowledge and awareness regarding radiation protection during dental training is crucial for ensuring better radiation protection practice after training. Materials and Methods: A cross sectional survey was conducted among 107 dental students comprising of undergraduate students, dental interns and post-graduate students in teaching dental institute in capital city in eastern Indian state. Results: 56% of the participants were aware about the harmful effects of radiation exposure. Only 27% students overall were aware about symbol of radiation hazard. 77% of UG students and 52% of interns were aware about ideal distance to stand during radiography. Overall 88% students which included all PG students, 94% of interns and 77% of UG students were aware about personal protective equipments. Almost all dental students (97%) were using lead apron in designated area for protection from radiation exposure. Overall 82% of students were using the personal protection badge. Conclusion: Based on results of this finding, the overall knowledge, Awareness and Practice regarding radiation protection among dental student was not uniformly good.","PeriodicalId":90816,"journal":{"name":"Dentistry (Sunnyvale, Calif.)","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70613569","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}

{"title":"The Use of Cortical Bone Wedges from the Mandibular Ramus “Wedge Technique” for 3-Dimensional Bone Augmentation of the Atrophic Ridges","authors":"F. Kablan","doi":"10.4236/ojst.2018.86021","DOIUrl":"https://doi.org/10.4236/ojst.2018.86021","url":null,"abstract":"Autogenous bone is still considered the gold standard in bone augmentation for implant insertion in atrophic ridges. However, augmentation of multiple edentulous atrophic segments usually necessitates the use of extraoral donor sites. This chapter introduces the Wedge Technique, as a new bone augmentation method that can augment multiple edentulous ridges with intraoral cortical bone grafts. Patients with moderate to severe ridge atrophy in different regions of the jaws were treated with the wedge technique (WT). Patients received a panoramic radiograph immediately after the surgery, and they were examined clinically and radiographically (periapical radiograph) every 2 weeks. At four months, CBCT was performed to evaluate the bone gain. Reentry was performed after 4 to 5 months to evaluate the new bone volume and quality and to insert implants. The follow-up period ranged from 30 to 120 months. The healing process was uneventful, with minimal morbidity. The success rate was 95%, the bone gain average was 3–6 mm vertically and 3–9 mm horizontally. The wedge technique can augment multiple segments of atrophic ridges with a small amount of autogenous graft. The achieved bone volume was satisfying, especially that the majority of the augmented areas were at posterior mandibular defects.","PeriodicalId":90816,"journal":{"name":"Dentistry (Sunnyvale, Calif.)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70658418","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}

{"title":"Evaluating the Whitening and Microstructural Effects of a Novel Whitening Strip on Porcelain and Composite Dental Materials.","authors":"Thair Takesh, Anik Sargsyan, Matthew Lee, Afarin Anbarani, Jessica Ho, Petra Wilder-Smith","doi":"10.4172/2161-1122.1000448","DOIUrl":"10.4172/2161-1122.1000448","url":null,"abstract":"<p><strong>Aims: </strong>The aim of this project was to evaluate the effects of 2 different whitening strips on color, microstructure and roughness of tea stained porcelain and composite surfaces.</p><p><strong>Methods: </strong>54 porcelain and 72 composite chips served as samples for timed application of over-the-counter (OTC) test or control dental whitening strips. Chips were divided randomly into three groups of 18 porcelain and 24 composite chips each. Of these groups, 1 porcelain and 1 composite set served as controls. The remaining 2 groups were randomized to treatment with either Oral Essentials^® Whitening Strips or Crest^® 3D White Whitestrips™. Sample surface structure was examined by light microscopy, profilometry and Scanning Electron Microscopy (SEM). Additionally, a reflectance spectrophotometer was used to assess color changes in the porcelain and composite samples over 24 hours of whitening. Data points were analyzed at each time point using ANOVA.</p><p><strong>Results: </strong>In the light microscopy and SEM images, no discrete physical defects were observed in any of the samples at any time points. However, high-resolution SEM images showed an appearance of increased surface roughness in all composite samples. Using profilometry, significantly increased post-whitening roughness was documented in the composite samples exposed to the control bleaching strips. Composite samples underwent a significant and equivalent shift in color following exposure to Crest^® 3D White Whitestrips™ and Oral Essentials^® Whitening Strips.</p><p><strong>Conclusions: </strong>A novel commercial tooth whitening strip demonstrated a comparable beaching effect to a widely used OTC whitening strip. Neither whitening strip caused physical defects in the sample surfaces. However, the control strip caused roughening of the composite samples whereas the test strip did not.</p>","PeriodicalId":90816,"journal":{"name":"Dentistry (Sunnyvale, Calif.)","volume":"7 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722253/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35239006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of a Novel Whitening Formulation on Dental Enamel.","authors":"Thair Takesh,&nbsp;Anik Sargsyan,&nbsp;Afarin Anbarani,&nbsp;Jessica Ho,&nbsp;Petra Wilder-Smith","doi":"10.4172/2161-1122.1000424","DOIUrl":"https://doi.org/10.4172/2161-1122.1000424","url":null,"abstract":"<p><strong>Objective: </strong>The goal of this study was to evaluate the enamel whitening effects of 2 new test formulations, one of which was a rinse, and the other a whitening strip.</p><p><strong>Materials and methods: </strong>Forty enamel chips were prepared from 20 healthy extracted teeth (2 from each tooth). After pre-staining and colorimetry to measure L* and b* values, 20 matched samples were immersed in either test or control rinses, and then colorimetry was performed again after 1 hr, 2 hr, 3 hr, 6 hr, 12 hr, 24 hr and 48 hrs (Each hour equates to one month of clinical use at the recommended dosage of 1 minute exposure 2 times a day). The remaining 20 matched samples were exposed to the test or control whitening strips and colorimetry was performed every 30 minutes for a total of 10 treatments.</p><p><strong>Results: </strong>Overall, the whitening performance of test and control strips was similar. The test and control rinses had a similar lightening effect over the first 3 hours (equivalent to 3 months of clinical use). Subsequently, the control rinse continued to lighten samples, whereas the test rinse had little further effect.</p><p><strong>Conclusion: </strong>Test and control-whitening strips showed similar effects; over time whitening strips showed a greater lightening effect than whitening rinses.</p>","PeriodicalId":90816,"journal":{"name":"Dentistry (Sunnyvale, Calif.)","volume":"7 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2161-1122.1000424","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35167844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of A Novel Disc Formulation on Dry Mouth Symptoms and Enamel Remineralization in Patients With Hyposalivation: An <i>In Vivo</i> Study.","authors":"Jessica Ho,&nbsp;Miracle Vania Firmalino,&nbsp;Afarin Golabgir Anbarani,&nbsp;Thair Takesh,&nbsp;Joel Epstein,&nbsp;Petra Wilder-Smith","doi":"10.4172/2161-1122.1000411","DOIUrl":"https://doi.org/10.4172/2161-1122.1000411","url":null,"abstract":"<p><strong>Background: </strong>The goal of this study was to identify the <i>in vivo</i> effects in patients with hyposalivation of a novel slowly dissolving adhering test disc upon on enamel remineralization, oral biofilm, salivary production, pH and buffering, gingival health, and on self-evaluation of oral well-being.</p><p><strong>Methods: </strong>Five subjects with xerostomia wore custom made retainers carrying 5 demineralized enamel chips for periods of 1 week each. In 1 study arm, subjects used the test agent plus oral hygiene self-care; in the other they used oral hygiene self-care only, with a 1 week washout in between arms. The treatment sequence was randomized. Before and after each study arm Plaque Index (PI), Gingival Index (GI) and Sulcus Bleeding Index (mSBI) were recorded. Clinical plaque staining was quantified using digital image analysis. Saliva production, pH and buffering capacity were recorded. Subjects completed a self-evaluation questionnaire for oral comfort. Enamel samples underwent standardized Knoop microhardness testing to quantify mineralization status.</p><p><strong>Results: </strong>Plaque presence and clinical Plaque Indices decreased significantly with test agent use (p<0.05). Five-minute saliva production almost doubled 10 and 40 minutes after oral test disc insertion (significant, p<0.05). Salivary pH buffering improved in 4/5 subjects with disc use. All demineralized tooth samples re-hardened intraorally (p>0.05). The discs favorably impacted eating problems and dental sensitivity. Subjects were positive about disc flavor and mouth feel.</p><p><strong>Conclusion: </strong>Using established <i>in vivo</i> techniques, the effects of a novel product in xerostomic patients were evaluated and quantified. The adhering disc facilitated eating, reduced dental sensitivity, improved saliva production and buffering capacity, reduced plaque, and alleviated xerostomia symptoms.</p><p><strong>Clinical relevance: </strong>Xerostomia management is challenging. A novel dry mouth disc was effective in alleviating dry mouth symptoms.</p>","PeriodicalId":90816,"journal":{"name":"Dentistry (Sunnyvale, Calif.)","volume":"7 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2161-1122.1000411","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35173747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}