Dental Research Journal最新文献

{"title":"Mapping global research in dental pulp regeneration: A 10-year bibliometric analysis.","authors":"Yeganeh-Sadat Mostafavi, Pedram Iranmanesh, Abbasali Khademi, Raheleh Mehrabi, Fatemeh Sheikhshoaei, Masoud Mohammadi","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Background: </strong>Dental pulp regeneration aims to restore the function and vitality of the dental pulp, which is the soft tissue inside the tooth. Research in this field is effective in trying to improve clinical practices and procedures. This study aimed to analyze the literature related to dental pulp regeneration and to create a documented research perspective for this field.</p><p><strong>Materials and methods: </strong>This bibliometric study analyzes the research outputs of the subject area of dental pulp regeneration indexed in the Web of Science database between 2013 and 2023. SciMAT software was used to visualize and predict the trends in research on the topic.</p><p><strong>Results: </strong>In general, it has been observed that the stem cell cluster consistently had the highest number of articles across all periods. As we progressed through time, the significance of this cluster continued to grow, eventually becoming a crucial component in the motor theme during the last period. In addition, a significant portion of the studies conducted during different periods focused on identifying suitable materials for scaffold formation. Various materials, including polymers and bioactive glasses, were proposed as viable options for scaffold formation in different periods.</p><p><strong>Conclusion: </strong>Dental pulp stem cells (DPSCs), scaffold networks, growth factors, and regulatory factors are the three main factors that influence dental pulp regeneration. By analyzing maps and thematic clusters in dental pulp regeneration research, as well as considering indicators such as repetition frequency, centrality, and citation of these clusters, researchers can identify the strengths, weaknesses, and gaps in current research.</p>","PeriodicalId":11016,"journal":{"name":"Dental Research Journal","volume":"21 ","pages":"31"},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11346601/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072310","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":"Comparative study of conventional exfoliative cytology and centrifuged liquid-based cytology in oral leukoplakia and oral squamous cell carcinoma patients.","authors":"R Jayabalan, Ambika Murugesan, Sekar Balakrishnan, Maya Ramesh","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Background: </strong>This study aims to compare the efficacy between conventional exfoliative cytology (EC) and centrifuged liquid-based cytology (CLBC) in control, leukoplakia, and oral squamous cell carcinoma (OSCC) patients. Oral leukoplakia and oral cancer require an early definitive diagnosis for better prognostic outcome. Oral EC, a minimally invasive technique that involves the examination of desquamated cells from the tissue surfaces used as a method of early diagnosis. CLBC is a modified technique that is used to achieve improved quality of the cytology findings.</p><p><strong>Materials and methods: </strong>A comparative study was done in 30 subjects, of which, 10 cases from control group, 10 oral leukoplakia, and 10 OSCC cases. These subjects were selected according to the appropriate inclusion and exclusion criteria. The cases in each group underwent conventional as well as CLBC. The comparison was carried out between these groups with respect to the cellular and background stromal factors. Appropriate qualitative evaluation of the samples was collected and statistical analysis was done using the Chi-squared test. The significance level of value was <i>P</i> < 0.05.</p><p><strong>Results: </strong>Significant results were obtained for certain parameters such as cellular overlap clear background, uniform distribution in control, leukoplakia, and OSCC with a <i>P</i> = 0.004**, <i>P</i> = 0.001**, <i>P</i> = 0.006** using CLBC.</p><p><strong>Conclusion: </strong>CLBC is better and give clearer vision as compared to conventional cytology and can be used in the early diagnosis.</p>","PeriodicalId":11016,"journal":{"name":"Dental Research Journal","volume":"21 ","pages":"28"},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11346596/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072245","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":"A letter to editor addressing a methodological concern: A critical analysis of papers included in a systematic review on vertical root fractures.","authors":"Ali Azarm, Fatemeh Ameri","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":11016,"journal":{"name":"Dental Research Journal","volume":"21 ","pages":"29"},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11346598/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072280","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":"Effect of cheese and casein phosphopeptide-amorphous calcium phosphate on erosive lesions of primary teeth enamel following exposure to amoxicillin and ibuprofen syrups: An <i>in vitro</i> study.","authors":"Bahareh Yousefi, Majid Mehran, Yoones Sadabadi, Morteza Banakar, Roza Haghgoo","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Background: </strong>The acidic component of liquid medicinal syrups used by pediatric patients may cause erosion and partial demineralization. This study aimed to evaluate the effect of cheese and casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) on erosive lesions of primary teeth enamel following exposure to amoxicillin and ibuprofen syrups.</p><p><strong>Materials and methods: </strong>In this <i>in vitro</i> study, 60 noncarious deciduous molars were used. After measuring the surface microhardness of the samples, they were randomly separated into two groups and immersed in either amoxicillin or ibuprofen for 1 min three times per day. CPP-ACP, cheese, and artificial saliva were then applied to each of the three subgroups (<i>n</i> = 10). After each immersion time, 10 min of therapy was given. Between treatment intervals, the samples were kept in artificial saliva. The microhardness was remeasured after 1 week. Data were analyzed using SPSS software through repeated-measures ANOVA (α = 0.05).</p><p><strong>Results: </strong>All samples' microhardness reduced considerably after immersion in liquid pharmaceuticals (amoxicillin [84.9 kgf/mm²] and ibuprofen [75.1 kgf/mm²]), but increased significantly following exposure to therapeutic solutions. There was no difference between the amoxicillin-cheese and amoxicillin-CPP-ACP subgroups (<i>P</i> = 0.975). A statistically insignificant difference was found between the ibuprofen group and the ibuprofen-CPP-ACP subgroup (<i>P</i> = 0.499).</p><p><strong>Conclusion: </strong>As a result, cheese and CPP-ACP can be utilized to remineralize erosive lesions caused by amoxicillin or ibuprofen exposure.</p>","PeriodicalId":11016,"journal":{"name":"Dental Research Journal","volume":"21 ","pages":"25"},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11346595/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072247","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":"Application of zero-inflated Poisson model with heterogeneous random effects to evaluate the effect of oral health education on pregnant women's dental caries: A longitudinal experimental study.","authors":"Somayeh Ahmadi Gooraji, Farid Zayeri, Yeganeh Sharifnejad, Zahra Ghorbani, Marzie Deghatipour, Maryam Heydarpour Meymeh, Alireza Akbarzadeh Baghban","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Background: </strong>Pregnant women have poor knowledge of oral hygiene during pregnancy. One problem with the follow-up of dental caries in this group is zero accumulation in the decayed, missing, and filled teeth (DMFT) index, for which some models must be used to achieve valid results. The studied population may be heterogeneous in longitudinal studies, leading to biased estimates. We aimed to assess the impact of oral health education on dental caries in pregnant women using a suitable model in a longitudinal experimental study with heterogeneous random effects.</p><p><strong>Materials and methods: </strong>This longitudinal, experimental research was carried out on pregnant women who visited medical centers in Tehran. The educational group (236 cases) received education for three sessions. The control group (200 cases) received only standard training. The DMFT index assessed oral and dental health at baseline, 6 months, and 24 months after delivery. The Chi-square test was used for comparing nominal variables and the Mann-Whitney <i>U</i> test for ordinal variables. The zero-inflated Poisson (ZIP) model was applied under heterogeneous and homogeneous random effects using R 4.2.1, SPSS 26, and SAS 9.4. The level of significance was set at 0.05.</p><p><strong>Results: </strong>Data from 436 women aged 15 years and older were analyzed. Zero accumulation in the DMFT was mainly related to the filled teeth (51%). The heterogeneous ZIP model fitted better to the data. On average, the intervention group exhibited a higher rate of change in filled teeth over time than the control group (<i>P</i> = 0.021).</p><p><strong>Conclusion: </strong>The proposed ZIP model is a suitable model for predicting filled teeth in pregnant women. An educational intervention during pregnancy can improve oral health in the long-term follow-up.</p>","PeriodicalId":11016,"journal":{"name":"Dental Research Journal","volume":"21 ","pages":"26"},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11346597/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072283","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":"Efficacy of platelet-rich fibrin in papilla reconstruction: A systematic review and meta-analysis.","authors":"Zohreh Afshari, Yeganeh Khazaei, Mahsa Ahmadishadmehri","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This systematic review and meta-analysis aimed to compare the efficacy of using platelet-rich fibrin (PRF) or connective tissue graft (CTG) for papilla reconstruction in the treatment of black triangles. A comprehensive electronic search across PubMed, Cochrane, Web of Science, ProQuest, and Scopus was conducted to identify the relevant randomized-controlled trials (RCTs), cohort studies, and case series. Quality assessment and meta-analysis were performed using R Statistical Software, focusing on the parameters such as papilla height, gingival index, plaque index (PI), clinical attachment level (CAL), and pocket probing depth. Registration number: CRD42022322934. From 191 initial studies, 7 were eligible for full-text review, with 4 RCTs and one retrospective study included in the meta-analysis. The analysis favored CTG over PRF in terms of black triangle height at 3-6 months postsurgery and in PI improvement at 3 months. No significant differences were found in CAL and probing pocket depth. While PRF can yield satisfactory results in papilla augmentation, CTG demonstrates superior clinical outcomes in specific parameters. Further research with more extensive clinical data is warranted.</p>","PeriodicalId":11016,"journal":{"name":"Dental Research Journal","volume":"21 ","pages":"27"},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11346599/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072249","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":"Laypersons' perception of smile esthetics from different backgrounds.","authors":"Fereshteh Najarzadegan, Faezeh Eslamipour","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Background: </strong>Smile esthetics can be subjective. This study aims to assess the effect of culture/geographic location on judging smile esthetics by comparing the perception of smile characteristics between American laypersons (Western culture) and Iranians (Eastern).</p><p><strong>Materials and methods: </strong>One hundred residents from each country were recruited for this analytical cross-sectional study. A frontal picture of a posed smile with standard norms which are mentioned in the Contemporary Orthodontics textbook by William R. Proffit was selected. Adobe Photoshop 7 was used to alter midline diastema, gingival display (GD), maxillary midline-to-face discrepancy, buccal corridor (BC), and smile arc. Images were given to groups to determine the most attractive and acceptable smile. Data were analyzed by Chi-square, Mann-Whitney, and Spearman correlation coefficient in SPSS-22 (α =0.05).</p><p><strong>Results: </strong>Americans were less critical in judging diastema (<i>P</i> < 0.001), GD (<i>P</i> = 0.013), and BC (<i>P</i> = 0.004) for smile attractiveness than Iranians. No difference was between the two groups in choosing the acceptability threshold and determining the most attractive smile except for BC (<i>P</i> = 0.002).</p><p><strong>Conclusion: </strong>Overall, Americans were more tolerant of variations in smile characteristics than Iranians. Both groups agreed on most smiles. Therefore, it seems that it is reasonable to use similar standards for smile characteristics while considering the small differences.</p>","PeriodicalId":11016,"journal":{"name":"Dental Research Journal","volume":"21 ","pages":"30"},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11346600/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142074952","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":"Antimicrobial efficacy of antiplaque agents of common toothpastes against <i>Porphyromonas gingivalis</i> and <i>Streptococcus oralis</i>: An <i>in vitro</i> study.","authors":"Narges Naghsh, Jaber Yaghini, Tahmineh Narimani, Elahe Khodarahmi","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Background: </strong>This study was designed to evaluate the antimicrobial activity of common gum protection and antiplaque toothpastes against <i>Porphyromonas gingivalis</i> (<i>P. gingivalis</i>) and <i>Streptococcus oralis</i> (<i>S. oralis</i>) as important periodontal pathogens.</p><p><strong>Materials and methods: </strong>This experimental study investigated the antimicrobial activity of 15 commonly used toothpastes from different companies on the two common types of periopathogens, <i>S. oralis</i> and <i>P. gingivalis</i> . The antimicrobial activity of toothpaste was evaluated at three concentrations of 100%, 50%, and 25% and analyzed by agar well diffusion plate method and zone of inhibition. The obtained data were compared and statistically analyzed by SPSS software using one-way ANOVA and the least significant difference <i>post hoc</i> tests (α = 0.05).</p><p><strong>Results: </strong>One-way ANOVA showed that the mean diameter of the two-bacterial zone of inhibition was significantly different at 100%, 50%, and 25% concentrations of toothpastes (<i>P</i> < 0.001). In general, the mean diameter of the zone of inhibition was greater at 100% concentration than the other two concentrations in all toothpastes. The highest zone of inhibition of the <i>S. oralis</i> was in the toothpastes containing tin. Further, the highest zone of inhibition of <i>P. gingivalis</i> was found in the triclosan-containing toothpastes.</p><p><strong>Conclusion: </strong>Toothpastes containing triclosan had the most antimicrobial activity against <i>P. gingivalis</i> . Moreover, toothpastes containing tin compounds had the most antimicrobial effect against <i>S. oralis</i> .</p>","PeriodicalId":11016,"journal":{"name":"Dental Research Journal","volume":"21 ","pages":"20"},"PeriodicalIF":0.0,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11132204/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141160938","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":"Comparison between three methods of diode laser 810 nm, photodynamic therapy with laser 660 nm, and hypochlorite solution for disinfection of pulp canal of primary teeth.","authors":"Nima Amini Tehrani, Shahrzad Javadinejad, Amir Mansour Shirani","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Background: </strong>The presence of treatment-resistant microorganisms is known as the main cause of pulpectomy failure in the endodontic treatment of deciduous teeth. The usage of lasers can contribute to reducing these microorganisms. This study aimed to compare the effect of three disinfection methods for deciduous teeth canals using laser diode 810 nm, photodynamic therapy with laser 660 nm and methylene blue, and sodium hypochlorite.</p><p><strong>Materials and methods: </strong>In this experimental study, 58 single-root deciduous teeth with no root resorption were investigated in four groups, including one control group of 10 and three intervention groups of 16. Preparation of the samples was done using manual files up to three numbers after the initial file. After sterilizing the samples in an autoclave, <i>Enterococcus faecalis</i> bacteria were cultured in the canals. In the first group, irrigating with hypochlorite 2.5% was done; in the second group, photodynamic therapy was performed using a laser diode and 0.1 mg/mL methylene solution; and in the third group, high-intensity laser 810 nm direct radiation was done into the canal. Next, samples were taken from all canals. The colony formation unit (CFU) of the bacteria was counted in the blood agar culture medium. The data were analyzed using Kruskal-Wallis and negative binomial regression test (α =0.05).</p><p><strong>Results: </strong>The mean CFU differed significantly between the four groups. The rate of incidence of <i>E. faecalis</i> colonies showed a reduction in all three intervention groups compared to the negative control. In the high-intensity laser 810 nm group, there was 68.4%; in the photodynamic therapy with diode 660 nm and methylene blue, there was 88%; and in the hypochlorite group, 98.3% reduction was observed compared to the negative control group.</p><p><strong>Conclusion: </strong>Based on the results of this study, to compare three disinfection methods of the deciduous teeth canals without preparation of canals, sodium hypochlorite had greater efficiency. All three groups of laser, photodynamic therapy, and sodium hypochlorite showed reductions of <i>E. faecalis</i> bacterial colony compared to the control group. The reductive effects of CFU were greater in the hypochlorite sodium group, followed by photodynamic and direct laser radiation groups.</p>","PeriodicalId":11016,"journal":{"name":"Dental Research Journal","volume":"21 ","pages":"23"},"PeriodicalIF":0.0,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11132214/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141161030","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":"A comparative finite element analysis of titanium, poly-ether-etherketone, and zirconia abutment on stress distribution around maxillary anterior implants.","authors":"Angel Elias, R Fathima Banu, Anand Kumar Vaidyanathan, T V Padmanabhan","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to investigate the influence of abutment material, alveolar bone density, and occlusal forces on stress distribution around maxillary anterior implants.</p><p><strong>Materials and methods: </strong>An <i>in-vitro</i> study was conducted. The maxillary anterior implant was modeled using a three-dimensional finite element model in D2 and D3 bones with three different abutment materials: titanium, zirconia, and poly-ether-ether ketone (PEEK). Von Mises stress was evaluated after the application of vertical and oblique loads of 100 N, 175 N, and 250 N. Statistical analysis was done by Friedman-Wilcoxon signed-rank test, Mann-Whitney <i>U</i> test, and Kruskal-Wallis test. The probability value <0.05 is considered a significant level.</p><p><strong>Results: </strong>Stress distribution around D3 bone was higher than D2 bone in all the abutment materials with greater values seen in oblique load than vertical load with insignificant difference (<i>P</i> > 0.05). Statistically insignificant stress values were seen greater in PEEK than titanium or zirconia abutment (<i>P</i> > 0.05). A statistically significant difference was observed between 100 N and 175 N of load (<i>P</i> < 0.05).</p><p><strong>Conclusion: </strong>PEEK, zirconia, and titanium as abutment material in the anterior region showed similar properties. The stress on the bone was proportionately increased during the vertical and oblique loads suggesting the influence of mechanical load in crestal bone loss rather than the type of abutment material.</p>","PeriodicalId":11016,"journal":{"name":"Dental Research Journal","volume":"21 ","pages":"22"},"PeriodicalIF":0.0,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11132231/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141160906","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}