Journal of Restorative Dentistry最新文献_第2页

A comparative study on the effect of Massularia acuminata and mouthwash against isolates from the oral cavity 尖锐按摩草与漱口水对口腔分离菌作用的比较研究

Journal of Restorative Dentistry Pub Date : 2016-05-01 DOI: 10.4103/2321-4619.180995

E. Tedwins, O. Benjamin, E. D. Ayobola, M. Goodies, E. E. Oghenesuvwe

{"title":"A comparative study on the effect of Massularia acuminata and mouthwash against isolates from the oral cavity","authors":"E. Tedwins, O. Benjamin, E. D. Ayobola, M. Goodies, E. E. Oghenesuvwe","doi":"10.4103/2321-4619.180995","DOIUrl":"https://doi.org/10.4103/2321-4619.180995","url":null,"abstract":"Aim: This research determines the antimicrobial activity of 'PakoIjebu' chewing stick (Massularia acuminata) and some common mouthwashes (Hexedene®, Brett®, and Listerine®) against some isolates of the oral cavity.Settings and Design: The samples were obtained by the use of sterile swab stick to isolate the microorganisms (Streptococcus oralis, Staphylococcus aureus, Lactobacillus species, Klebsiella species, Neissera sicca, Micrococcus species, Muccor, Aspergillus flavus and Giosporium) from the oral cavity of healthy undergraduate students of Delta State University, Abraka, Nigeria using standard microbiological techniques. The sensitivity test, minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC) were determined.Results: The aqueous and ethanol extract of Massularia acuminata had an MIC of 25 mg/mL which was similar to those of commercially available mouth wash analyzed in the study. The ethanol extract of Massularia acuminata was bactericidal against Lactobacilus species, Streptococcus oralis and Neissera sicca at a concentration of 50 mg/mL which suggests that the extract is more effective compared to the tested mouth wash. Among the mouth wash, only Listerine was bactericidal against Neissera sicca at an MBC of 50 mg/mL. Conclusion: This study confirmed the age long belief that those who use Massularia acuminate regularly for their oral care has a low rate of oral infections; therefore, extract of Massularia acuminata could be incorporated into tooth paste or used as mouth wash for periodontal infections.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"208 1","pages":"64 - 68"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73190677","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

Evaluation of caries-protective effect of three recent dentin bonding agents on demineralization of root surface: An in vitro study 三种新型牙本质结合剂对牙根表面脱矿的龋保护作用的体外研究

Journal of Restorative Dentistry Pub Date : 2016-05-01 DOI: 10.4103/2321-4619.180999

A. Aziz, H. Rahman, R. Chandra, K. Loomba, Shailja Singh

{"title":"Evaluation of caries-protective effect of three recent dentin bonding agents on demineralization of root surface: An in vitro study","authors":"A. Aziz, H. Rahman, R. Chandra, K. Loomba, Shailja Singh","doi":"10.4103/2321-4619.180999","DOIUrl":"https://doi.org/10.4103/2321-4619.180999","url":null,"abstract":"Objective: To evaluate the caries-protective effect of three recent dentin bonding agents (DBAs) on demineralization of root surface in vitro. Materials and Methods: The root surface of 70 freshly extracted caries-free human teeth was thoroughly cleaned and polished, thereby removing the cementum. The root surfaces were coated with acid-resistant nail polish and 2 mm × 3 mm rectangular window was prepared on the buccal surface. The samples were then divided randomly into three experimental groups; Group 1 (Xeno-V), Group 2 (Tetric N Bond), and Group 3 (Gluma Self-etch) which were further divided into two Subgroups (A and B) with 10 samples each in which second layer of adhesive was cured without air thinning and with air thinning respectively. Subsequently, all specimens were demineralized for 6 days with acidified gel (hydroxyethylcellulose, pH 4.8, 37°C). Each tooth samples were sliced in plano parallel section (80 ± 20 μm) by safe sided diamond disc and examined for caries-like lesions (demineralized area) under a polarized microscope. Data were analyzed using one-way ANOVA, Student's t- and Tukey honestly significant difference tests. Results: All control group specimen exhibited lesions with a mean depth of 86.15 μm. In Group 1–3, the lesion depth was reduced significantly, Subgroup A results were better than B. Conclusion: Demineralization on root surface can be impeded by DBA tested. Gluma Self-etch showed maximum caries-protective effect.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"184 1","pages":"42 - 47"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80539760","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 blood contamination on the push-out bond strength of two endodontic biomaterials 血液污染对两种根管生物材料推出结合强度的影响

Journal of Restorative Dentistry Pub Date : 2016-05-01 DOI: 10.4103/2321-4619.180997

A. Adl, Fereshte Sobhnamayan, Nooshin Sadatshojaee, Niloofar Azadeh

{"title":"Effect of blood contamination on the push-out bond strength of two endodontic biomaterials","authors":"A. Adl, Fereshte Sobhnamayan, Nooshin Sadatshojaee, Niloofar Azadeh","doi":"10.4103/2321-4619.180997","DOIUrl":"https://doi.org/10.4103/2321-4619.180997","url":null,"abstract":"Objectives: The aim of the present study was to compare the effect of blood contamination on the push-out bond strength of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM) at different time intervals. Materials and Methods: One hundred and twenty dentin slices from single-rooted human teeth were sectioned and instrumented to achieve a diameter of 1.3 mm. The specimens were allocated into eight groups based on the materials used, the presence or absence of blood contamination, and the time. MTA and CEM were mixed and introduced into the lumens of dentin slices in groups 1–4 and 5–8, respectively. In blood-contaminated groups (1, 3, 5, and 7), the specimens were in direct contact with blood. The push-out test was performed in groups 1, 2, 5, and 6 after 3 days and in othergroups after 21 days. For the evaluation of failure modes, the samples were examined under a light microscope at × 40 magnifications. Data were analyzed by three-way analysis of variance (ANOVA). Results: The bond strength of MTA was higher than that of CEM, regardless of contamination and time (P < 0.05). For both materials, regardless of contamination, there was an increase in the bond strength from days 3to 21 (P < 0.05). Regardless of materials and time, blood contamination had no significant effect on the bond strength of materials (P > 0.05). Inspection of the samples revealed that the bond failure was predominantly of the mixed type in all groups. Conclusion: Blood contamination had no adverse effect on the bond strengths of both MTA and CEM; resistance of MTA to displacement was greater than that of CEM cement. However, the elapsed time, from 3 to 21 days, resulted in an increase in bond strength of both materials.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"31 1","pages":"59 - 63"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81784070","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

Silver amalgam: A clinician's perspective 银汞合金:临床医生的观点

Journal of Restorative Dentistry Pub Date : 2016-05-01 DOI: 10.4103/2321-4619.181000

T. Pereira

引用次数: 7

Effects of hydrogen peroxide-based mouthwashes on color changes of stained direct composite resins 过氧化氢基漱口水对直接复合树脂染色后颜色变化的影响

Journal of Restorative Dentistry Pub Date : 2016-01-01 DOI: 10.4103/2321-4619.176018

Muhammet Karadas, Murat Alkurt, Z. Duymus

{"title":"Effects of hydrogen peroxide-based mouthwashes on color changes of stained direct composite resins","authors":"Muhammet Karadas, Murat Alkurt, Z. Duymus","doi":"10.4103/2321-4619.176018","DOIUrl":"https://doi.org/10.4103/2321-4619.176018","url":null,"abstract":"Objective: The aim of this study was to evaluate the effect of three mouthwashes on color changes of three composite resins stained with tea. Materials and Methods: Fifty specimens were prepared for each of the three composite resins [Clearfil Majesty Esthetic (CME), Filtek Z250 (Z25), and Charisma (CH)], and the specimens were then stained in a tea solution. Each composite group was randomly divided into five subgroups (n = 10) according to the product applied: Distilled water (DW) (negative control); Crest 3D White mouthwash (CR); Listerine whitening mouthwash (LS); Scope White SC mouthwash (SC), and Opalescence PF gel (OP) (10% carbamide peroxide, positive control). The color of the specimens was measured with a spectrophotometer at baseline, after staining, and on the 7th, 28 th , and 56 th days of the treatment period. The color differences (ΔE) were analyzed with a three-way analysis of variance (ANOVA), followed by Tukey′s test (P < 0.05). Results: Compared with the clinically acceptable threshold unit, the level of staining on all the composite resins was considerably high (ΔE > 3.3). The composite resin, mouthwash, immersion time, and their interaction had a significant effect on the color change procedure (P < 0.05), but the immersion time × mouthwash × composite did not. Conclusion: The discoloration of the specimens after immersion in the mouthwashes decreased significantly over time. Only the staining of the CME specimens treated with CR, LS, and OP decreased to a clinically acceptable level at the end-treatment period.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"32 1","pages":"11 - 16"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78413494","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

Proanthocyanidin: A natural dentin biomodifier in adhesive dentistry 原花青素:一种天然牙本质生物改性剂

Journal of Restorative Dentistry Pub Date : 2016-01-01 DOI: 10.4103/2321-4619.176013

R. Nagpal, Payal Singh, Shipra Singh, S. P. Tyagi

引用次数: 24

Management of a mandibular first molar with three separate root canals in the distal root 下颌第一磨牙远端有三个独立根管的处理

Journal of Restorative Dentistry Pub Date : 2016-01-01 DOI: 10.4103/2321-4619.176021

K. Mohan, Sarra Ben Hmida, S. Alshehadat, M. Halim, H. Ahmed

引用次数: 3

A SEM evaluation of smear layer removal using two rotary instrument systems with EDTA and vinegar as a root canal irrigant 用EDTA和醋作为根管冲洗剂的两种旋转式仪器系统去除涂抹层的扫描电镜评价

Journal of Restorative Dentistry Pub Date : 2016-01-01 DOI: 10.4103/2321-4619.176020

Udayakumar Palaniswamy, M. Kaushik, L. R. Surender, Neha Prashar, Shikha Arya, Srikanth Pasari

{"title":"A SEM evaluation of smear layer removal using two rotary instrument systems with EDTA and vinegar as a root canal irrigant","authors":"Udayakumar Palaniswamy, M. Kaushik, L. R. Surender, Neha Prashar, Shikha Arya, Srikanth Pasari","doi":"10.4103/2321-4619.176020","DOIUrl":"https://doi.org/10.4103/2321-4619.176020","url":null,"abstract":"Introduction: As the smear layer (SL) produced during instrumentation adheres to the dentinal surface and prevents penetration of irrigants and medicaments, it should be removed. The aim of this study was to evaluate the ability of 17% ethylenediaminetetraacetic acid (EDTA) and white vinegar (5% pure acetic acid) to remove debris and SL produced during root canal preparation with two nickel-titanium (NiTi) file systems, Hyflex (Coltene Whaledent, Allstetten, Switzerland) and ProTaper (Dentsply, Tulsa, OK, USA). Materials and Methods: Twenty freshly extracted human, single-rooted teeth were sectioned at the cementoenamel junction and were randomly divided into four groups of five samples each. In each group, 0.5 mL of 5% NaOCl was used as the first irrigant, which was followed by either 17% EDTA or vinegar. Two groups were prepared with Hyflex rotary files and the other two with ProTaper files. Scanning electron microscopy (SEM) study was done to evaluate the SL, and the collected data were submitted for statistical analysis. Statistical analysis was performed based on Student′s t-test with P value >0.05. Results: There was no statistically significant difference between the types of instruments used (Hyflex files and ProTaper files), and 17% EDTA solution and vinegar (5% acetic acid). Conclusion: Vinegar can be relied on as an endodontic irrigant for SL removal was comparable to 17% EDTA. In addition, both types of NiTi instrument produced similar dentin surface in terms of SL when used along with EDTA and vinegar.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"22 1","pages":"17 - 21"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82048569","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

Orthodontic bonding to high-copper amalgam with different adhesive cements 不同黏合剂与高铜汞合金的正畸粘接

Journal of Restorative Dentistry Pub Date : 2016-01-01 DOI: 10.4103/2321-4619.176015

Mustafa �lker, S. Malkoç, Hayriye �lker, M. Yalçın, M. Malkoç

{"title":"Orthodontic bonding to high-copper amalgam with different adhesive cements","authors":"Mustafa �lker, S. Malkoç, Hayriye �lker, M. Yalçın, M. Malkoç","doi":"10.4103/2321-4619.176015","DOIUrl":"https://doi.org/10.4103/2321-4619.176015","url":null,"abstract":"Objective: The aim of this study was to compare the shear bond strengths of metal brackets bonded by four different adhesive cements to high-copper amalgam surfaces. Materials and Methods: A commonly used dental amalgam (nongamma 2, lathe-cut, high-copper alloy) (Cavex Avalloy, Cavex) was triturated according to the manufacturers′ directions, and then condensed into a cylindrical (diameter: 8 mm, depth: 2 mm) undercut cavity prepared in auto polymerized acrylic resin. Exposed surfaces of 100 specimens were polished with 400, 600, 800, and 1200 grit paper and cleaned for 10 min under running tap water, air-dried, sandblasted for 3 s with 50-micron aluminum oxide abrasive, and coated with alloy primer (Alloy PrimerTM, Kuraray). Lower incisors metal brackets were bonded to prepared surfaces with an orthodontic composite Transbond XT (3M) (control) and four adhesive cements: C and B Metabond (Parkell), Panavia F 2.0 (Kuraray), Resinomer (Bisco), and Bis Cem (Bisco). After 24 h, all samples were tested for shear bond strength with the universal test machine. The data were calculated as MPa and statistically analyzed. Results: Statistically bond strengths of Panavia F 2.0 and C and B Metabond were higher than the bond strengths of Bis Cem and Resinomer (P < 0.05). There was no difference between the bond strength of control group (Transbond XT) and the other adhesive cements tested (P > 0.05). Conclusion: Bonding the brackets to sand blasted and alloy primer coated amalgam surfaces can be achieved by traditional orthodontic composites (Transbond XT). Panavia F 2.0 and C and B Metabond adhesive cements may improve bonding to high-copper amalgam.","PeriodicalId":17076,"journal":{"name":"Journal of Restorative Dentistry","volume":"62 1","pages":"7 - 10"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73205586","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

How does fixed prosthodontics interface with periodontology? 固定修复学如何与牙周病学相结合?

Journal of Restorative Dentistry Pub Date : 2015-09-01 DOI: 10.4103/2321-4619.168732

H. Rashid

引用次数: 3