Frontiers in Dentistry最新文献_第2页

Role of Laser Etching on Shear Bond Strength between Recast Nickel-Chromium Alloy and Dental Ceramic: An Experimental Study. 激光刻蚀对重铸镍铬合金与牙陶瓷剪切结合强度影响的实验研究。

Frontiers in Dentistry Pub Date : 2025-01-11 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i2.17541

Janardanan Sriman, Ahila Singaravel Chidembaranathan, Muthukumar Balasubramanium

{"title":"Role of Laser Etching on Shear Bond Strength between Recast Nickel-Chromium Alloy and Dental Ceramic: An Experimental Study.","authors":"Janardanan Sriman, Ahila Singaravel Chidembaranathan, Muthukumar Balasubramanium","doi":"10.18502/fid.v22i2.17541","DOIUrl":"10.18502/fid.v22i2.17541","url":null,"abstract":"Objectives: The purpose of this study was to investigate the effect of laser etching, air bone particle abrasion and acid etching on shear bond strength between re-cast Nickel Chromium alloy and dental ceramics. Materials and Methods: A master die was made according to ISO 9693; TR (11406). A total of 40 samples were fabricated with 50%w nickel-chromium alloy and 50%w previously casted nickel-chromium alloy. The samples were divided into four groups based on the surface treatment applied. Group 1 served as the untreated control, Group 2 underwent etching with 10% hydrochloric acid (HCl), Group 3 received surface treatment via air-borne particle abrasion, while Group 4 was conditioned using a pulsed Nd:YAG laser. Shear bond strength between ceramic and metal was tested using a universal testing machine and the mode of debonding was evaluated using scanning electron microscope. The obtained values were statistically analyzed using one-way ANOVA and Tukey's HSD Post Hoc test. Results: The mean values of shear bond strength for Group 1 was 22.69±2.63Mpa, Group 2 was 27.05±2.15Mpa, Group 3 was 34.46±2.46Mpa and Group 4 was 39.54±2.16Mpa. The difference among the groups was significant (P<0.001). Hence there was a statistical difference seen in shear bond strength between control and acid etching, air borne particle abrasion and laser etching. Conclusion: Laser surface conditioning produced more surface roughness compared to acid etching and air bone particle abrasion on re-cast Nickel Chromium alloy which increased the shear bond strength markedly between recast nickel-chromium alloy and dental Ceramic.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"2"},"PeriodicalIF":0.0,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12085872/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144101708","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}

引用次数: 0

Evaluation of Pentraxin-3 and Interleukin-6 Levels in Serum and Gingival Crevicular Fluid in Patients with Generalized Periodontitis and Periodontal Health Controls before and after Scaling and Root Planing. 广泛性牙周炎患者血清和龈沟液中pentagon -3和白细胞介素-6水平的评价及牙周健康控制在刮治和牙根刨治前后的意义

Frontiers in Dentistry Pub Date : 2025-01-06 eCollection Date: 2025-01-01 DOI: 10.18502/fid.v22i1.17393

Siamak Yaghobee, Sadegh Hasannia, Fatemeh Hamidzadeh, Saman Valadan Tahbaz, Rojin Shahmohammadi, Farzaneh Poursafar

{"title":"Evaluation of Pentraxin-3 and Interleukin-6 Levels in Serum and Gingival Crevicular Fluid in Patients with Generalized Periodontitis and Periodontal Health Controls before and after Scaling and Root Planing.","authors":"Siamak Yaghobee, Sadegh Hasannia, Fatemeh Hamidzadeh, Saman Valadan Tahbaz, Rojin Shahmohammadi, Farzaneh Poursafar","doi":"10.18502/fid.v22i1.17393","DOIUrl":"10.18502/fid.v22i1.17393","url":null,"abstract":"Objectives: Pentraxin-3 (PTX3) and interleukin-6 (IL-6) are two of the most important inflammatory cytokines produced by cells in periodontal tissues. The present study aims to evaluate the levels of PTX3 and IL-6 in serum and gingival crevicular fluid (GCF) in patients with generalized periodontitis stages II and III, grades A and B, and periodontal health individuals before and after scaling and root planing (SRP). Materials and Methods: In this study, 22 patients with periodontitis (12 males and 10 females) and 22 periodontal health controls (11 males and 11 females) were selected. All patients underwent full-mouth SRP. Serum and GCF samples were collected before and one month after SRP. PTX3 and IL-6 levels in serum and GCF samples were evaluated by enzyme-linked immunosorbent assay. Data analysis was performed using Mann-Whitney U and Wilcoxon tests (P<0.05). Results: Serum levels of PTX3 were significantly higher in the periodontitis group than the controls (P<0.05). GCF PTX3 levels and serum and GCF IL-6 levels were not significantly different between the groups. Furthermore, this study did not show any significant changes in the levels of these cytokines before and after SRP. Conclusion: Among the studied cytokines and media, only serum PTX3 levels showed a significant difference between periodontitis patients and healthy controls and could serve as a diagnostic marker of periodontal inflammation. SRP did not affect the levels of these cytokines, suggesting that other inflammatory factors may be involved in disease process. However, additional longitudinal prospective studies are needed to confirm these results.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"22 ","pages":"1"},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12085873/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144101690","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}

引用次数: 0

Validation of a Questionnaire on COVID-19 Knowledge and Attitude for Dental Patients. 口腔患者新冠肺炎知识和态度调查问卷的验证

Frontiers in Dentistry Pub Date : 2024-12-12 eCollection Date: 2024-01-01 DOI: 10.18502/fid.v21i48.17251

Mohammad Reza Khami, Mahsa Karimi, Morenike Oluwatoyin Folayan, Ahmad Reza Shamshiri, Prathip Phantumvanit, Armando E Soto-Rojas, Seyed Hossein Bassir, Heikki Murtomaa

{"title":"Validation of a Questionnaire on COVID-19 Knowledge and Attitude for Dental Patients.","authors":"Mohammad Reza Khami, Mahsa Karimi, Morenike Oluwatoyin Folayan, Ahmad Reza Shamshiri, Prathip Phantumvanit, Armando E Soto-Rojas, Seyed Hossein Bassir, Heikki Murtomaa","doi":"10.18502/fid.v21i48.17251","DOIUrl":"10.18502/fid.v21i48.17251","url":null,"abstract":"Objectives: The current study aimed to develop a valid and reliable questionnaire in both English and Persian to assess dental patients' knowledge and attitude during the COVID-19 outbreak. Materials and Methods: Through a comprehensive literature review, we designed the primary questionnaire in English and then translated it into Persian. The questionnaire consisted of six sections covering background information, knowledge of emergency dental treatments, transmission routes of disease, required preparation, source of information, and attitude. To evaluate the validity of the questionnaire, the researchers obtained expert opinions using the Item Content Validity Index (I-CVI) and Scale Content Validity Index (S-CVI/Ave). They distributed online versions of the questionnaire to a total of 60 English-speaking adults in Nigeria and the United States, and 60 Persian-speaking adults in Iran to measure its reliability using Cronbach's alpha. Results: I-CVI score, S-CVI/Ave, and Cronbach's alpha of the questionnaire ranged from 0.29-1, 0.62-0.99, and 41.1-87.6%, respectively. After reviewing the scores and comments received on each item, taking into account the opinions of the research team, a decision was made to remove, merge, modify, or retain certain items. This led to a final version of the questionnaire consisting of nine questions in the background section and 46 items in the remaining five sections. Conclusion: Overall, the developed questionnaire appears to be valid and reliable for assessing the knowledge and attitude of dental patients toward COVID-19 in dental settings. It can potentially serve as an appropriate scale in future infectious disease epidemics across diverse populations.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"21 ","pages":"48"},"PeriodicalIF":0.0,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11792724/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143188745","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}

引用次数: 0

Comparison of Canal Transportation by Two Rotary Systems, Neoniti vs. Wave One, Both Used with Reciprocal Motion. 两种旋转系统的运河运输比较，Neoniti与Wave 1，两者都使用相互运动。

Frontiers in Dentistry Pub Date : 2024-12-10 eCollection Date: 2024-01-01 DOI: 10.18502/fid.v21i47.17250

Mohsen Aminsobhani, Arvin Rezaei Avval, Fatemeh Hamidzadeh

{"title":"Comparison of Canal Transportation by Two Rotary Systems, Neoniti vs. Wave One, Both Used with Reciprocal Motion.","authors":"Mohsen Aminsobhani, Arvin Rezaei Avval, Fatemeh Hamidzadeh","doi":"10.18502/fid.v21i47.17250","DOIUrl":"10.18502/fid.v21i47.17250","url":null,"abstract":"Objectives: Preserving the original canal morphology is the ideal goal during root canal preparation. This study aimed to compare canal transportation at various cross-sections using the Neoniti and Wave One Gold rotary systems, both applied with reciprocal motion. Materials and Methods: Forty acrylic S-shape canal simulator endo-blocks were used in this study. Two preparation protocols were applied: (1) Proglider (#16/0.02) followed by Wave One Gold (#20/0.07) and (2) GPS followed by A1#20 (reciprocal motion). The canals were dyed before and after preparation, and images were captured from both stages using blocks. These images were then superimposed using Adobe Photoshop to assess differences, and measurements were taken with Digimizer image analysis software. The data was analyzed using an independent samples T-test, with statistical significance set at P<0.05. Results: Transportation was significantly greater in the middle third of the canal simulator in the group that was treated with Proglider (#16/0.02) followed by Wave One Gold (#20/0.07). However, no significant differences were observed in the coronal or apical thirds. Conclusion: While the manufacturer of Neoniti recommends using this system with continuous rotational motion, it can also be effectively utilized with reciprocal motion, yielding satisfactory results while respecting the canal anatomy.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"21 ","pages":"47"},"PeriodicalIF":0.0,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11792736/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143188155","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}

引用次数: 0

Color Assessment of Screw-Retained Implant Prostheses Access Hole Fillings: An In-Vitro Study. 螺钉保留种植体假体通道孔填充物的颜色评估：一项体外研究。

Frontiers in Dentistry Pub Date : 2024-12-07 eCollection Date: 2024-01-01 DOI: 10.18502/fid.v21i46.17177

Arash Sarrafzadeh, Afrooz Nakhostin, Soheila Jadidi, Malihe Safari

{"title":"Color Assessment of Screw-Retained Implant Prostheses Access Hole Fillings: An In-Vitro Study.","authors":"Arash Sarrafzadeh, Afrooz Nakhostin, Soheila Jadidi, Malihe Safari","doi":"10.18502/fid.v21i46.17177","DOIUrl":"10.18502/fid.v21i46.17177","url":null,"abstract":"Objectives: This study aimed to investigate the aesthetic aspect of screw-retained restorations by examining three different types of filling materials used for the access cavity, highlighting the significance of aesthetics in implant restorations. Materials and Methods: In this laboratory investigation, simulation samples of screw-retained restorations were filled with flowable composite resin (group F), opaque and flowable composite resin (group O) and porcelain plug (group P) at baseline (T0). The samples were subjected to thermocycling twice (T1 and T3), undergoing 1000 cycles in coffee, orange juice, and distilled water, followed by washing performed after each thermocycling (T2 and T4). Colorimetric analysis and surface roughness measurements were conducted, and the data were statistically analyzed using. two-way analysis of variance (ANOVA), ,Tukey post hoc, two-way analysis of covariance (ANCOVA), and paired-t test. P<0.05 was considered significant. Results: The type of filling material had a significant effect on the color difference observed between the restoration and filling materials (P<0.05). Notably, samples from group P exhibited a more pronounced color difference at T4, despite showing a lower color difference at T0, when compared to group O. Conclusion: The use of porcelain plugs did not provide a notable advantage over the combination of flowable and opaque composite resins, particularly given the difficulties in fabricating and positioning porcelain plugs within the access cavity. Therefore, it is recommended to utilize flowable composite resins in conjunction with an opaque composite resin layer beneath, to effectively conceal any dark shades from the underlying metal.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"21 ","pages":"46"},"PeriodicalIF":0.0,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11792726/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143188071","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}

引用次数: 0

Antifungal Efficacy of Ganoderma lucidum and Clotrimazole for Treatment of Denture Stomatitis: A Randomized Clinical Trial. 灵芝联合克霉唑治疗义齿口炎的随机临床研究。

Frontiers in Dentistry Pub Date : 2024-12-01 eCollection Date: 2024-01-01 DOI: 10.18502/fid.v21i45.17178

Fahimeh Pakravan, Afsaneh Yegdaneh, Somayeh Taymouri, Shiva Rahimi, Negin Ghahremani

{"title":"Antifungal Efficacy of Ganoderma lucidum and Clotrimazole for Treatment of Denture Stomatitis: A Randomized Clinical Trial.","authors":"Fahimeh Pakravan, Afsaneh Yegdaneh, Somayeh Taymouri, Shiva Rahimi, Negin Ghahremani","doi":"10.18502/fid.v21i45.17178","DOIUrl":"10.18502/fid.v21i45.17178","url":null,"abstract":"Objectives: This study aimed to compare the antifungal efficacy of Ganoderma lucidum (G. lucidum) and clotrimazole for treatment of denture stomatitis (DS). Materials and Methods: This double-blind randomized clinical trial was conducted on 50 patients with DS types I and II assigned to two groups (N=25). In the first group, G. lucidum extract was administered in the form of 5% gel while 1% clotrimazole gel was prescribed for the second group. Pain intensity according to the visual analog scale (VAS), and the percentage of DS recovery based on the Budtz-Jorgenson index were evaluated and recorded after 7 and 14 days. Data were analyzed using the Chi-square test, independent samples t-test, repeated measures ANOVA, and logistic regression (alpha=0.05). Results: The percentage of complete recovery on day 7 in the G. lucidum group (28%) was higher than that in the clotrimazole group (16%) but not significantly (P=0.592). Not wearing dentures overnight significantly increased the odds of recovery by 6.56 times, while the odds of recovery decreased by 0.03 times in DS type II, as compared to DS type I (P= 0.009). Conclusion: No significant difference existed between the antifungal efficacy of G. lucidum and clotrimazole for clinical treatment of DS. Thus, Ganoderma may be regarded as an alternative treatment, especially in patients' resistant to azoles. Nonetheless, further clinical studies are required to shed more light on this topic.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"21 ","pages":"45"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11792735/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143187593","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}

引用次数: 0

Clinical Guide Adaptation for Amalgam Waste Management in Dental Settings in Iran. 临床指南适应汞合金废物管理在牙科设置在伊朗。

Frontiers in Dentistry Pub Date : 2024-11-19 eCollection Date: 2024-01-01 DOI: 10.18502/fid.v21i44.17053

Mahsa Eshrati, Fatemeh Momeniha, Nafiseh Momeni, Elham Ahmadi, Atieh Hashemian, Homa Kashani, Mojgan Alaeddini

{"title":"Clinical Guide Adaptation for Amalgam Waste Management in Dental Settings in Iran.","authors":"Mahsa Eshrati, Fatemeh Momeniha, Nafiseh Momeni, Elham Ahmadi, Atieh Hashemian, Homa Kashani, Mojgan Alaeddini","doi":"10.18502/fid.v21i44.17053","DOIUrl":"10.18502/fid.v21i44.17053","url":null,"abstract":"Objectives: Dental clinics are one of the major producers of mercury-containing waste due to the use of dental amalgam. The atmospheric transport and persistence of mercury and its compounds in the environment, coupled with their high potential for bioaccumulation and detrimental effects on human health and ecosystems, underscore the necessity for effective management of mercury waste. Due to the lack of comprehensive and integrated guidelines for the effective management of dental amalgam waste in Iran, the objective of this study was to adapt a guideline for the management of amalgam waste in dental settings within the country. Materials and Methods: The method used was based on the adaptation principles presented by the Ministry of Health and Medical Education, and included searching and reviewing guidelines related to the management of amalgam waste in developed countries, extracting recommendations, revising the recommendations considering the local infra-structures and conditions, and receiving expert opinions and reaching consensus according to the RAND/UCLA Appropriateness Method. Results: The final guideline includes 34 recommendations in 5 areas: manage-ment of the amalgam scraps, considerations for dental equipment, management of the extracted teeth containing amalgam restorations, management of the amalgam capsules, and considerations for placement and replacement of the amalgam restorations. Conclusion: The use of this guideline in medical universities, public and private dental clinics, along with the supervisory role of the Ministry of Health and Medical Education, can be a way to minimize the environmental hazards of mercury.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"21 ","pages":"44"},"PeriodicalIF":0.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11792727/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143187739","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}

引用次数: 0

Investigation of Mechanical Properties, Shade, and Water Sorption/Solubility of Commercial Composite Resins. 商用复合树脂的机械性能、遮光性和吸水性/溶解性研究。

Frontiers in Dentistry Pub Date : 2024-11-06 eCollection Date: 2024-01-01 DOI: 10.18502/fid.v21i43.16849

Golnaz Tayebi, Sajjad Omidian, Sara Abtahi, Alireza Ranjbar Hassani, Yasaman Sherafatmand

{"title":"Investigation of Mechanical Properties, Shade, and Water Sorption/Solubility of Commercial Composite Resins.","authors":"Golnaz Tayebi, Sajjad Omidian, Sara Abtahi, Alireza Ranjbar Hassani, Yasaman Sherafatmand","doi":"10.18502/fid.v21i43.16849","DOIUrl":"10.18502/fid.v21i43.16849","url":null,"abstract":"Objectives: Assessment of mechanical properties of composite resins is important since they can affect the clinical performance and longevity of restorations. This study aimed to assess and compare different properties of dental composite resins available in the market. Materials and Methods: In this comparative study, samples of four different dental composite resins (Edge COM, Saremco, FGM, and Kulzer) were tested according to ISO 4049:2019 guidelines. Flexural strength (by using a universal testing machine), depth of cure (using the ISO 4049 scrape technique), radiopacity (with aluminum step wedge), water sorption/solubility (by using immersion and drying cycles), and shade (by using Vita Easy Shade) of the samples were assessed. Data were analyzed by one-way ANOVA and Tukey's post-hoc test (alpha=0.05). Results: No significant difference was found in flexural strength among the four groups (P>0.05). The depth of cure of FGM was significantly higher than that of other groups (P<0.05). Solubility and water sorption were the highest in Kulzer, and the lowest in Edge COM (P<0.05). All tested composites met the necessary radiopacity standards for precise radiographic diagnosis; radiopacity was higher in Saremco and FGM groups. None of the composite resins matched the reference A2 shade. Conclusion: Although no significant difference was found in flexural strength of the tested composites, they had differences in other properties. Edge COM exhibited high flexural strength, while Saremco had optimal radiopacity.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"21 ","pages":"43"},"PeriodicalIF":0.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11792747/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143188722","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}

引用次数: 0

Effect of Hyaluronic Acid Mucoadhesives on Palatal Wound Healing and Postoperative Discomfort in Free Gingival Graft Surgery: A Clinical Trial. 透明质酸粘合剂对游离龈移植手术中腭部伤口愈合和术后不适的影响：临床试验。

Frontiers in Dentistry Pub Date : 2024-11-06 eCollection Date: 2024-01-01 DOI: 10.18502/fid.v21i42.16848

Parisa Nabiyi, Niloofar Jenabian, Sohrab Kazemi, Ali Akbar Moghadamnia, Seyed Ali Seyedmajidi

{"title":"Effect of Hyaluronic Acid Mucoadhesives on Palatal Wound Healing and Postoperative Discomfort in Free Gingival Graft Surgery: A Clinical Trial.","authors":"Parisa Nabiyi, Niloofar Jenabian, Sohrab Kazemi, Ali Akbar Moghadamnia, Seyed Ali Seyedmajidi","doi":"10.18502/fid.v21i42.16848","DOIUrl":"10.18502/fid.v21i42.16848","url":null,"abstract":"Objectives: This study aimed to assess the effect of hyaluronic acid (HA) mucoadhesives with two different concentrations on palatal epithelial wound healing and postoperative discomfort following free gingival graft (FGG) surgery. Materials and Methods: In this triple-blind, randomized, controlled clinical trial, 39 patients undergoing FGG surgery were randomly allocated to three groups (N=13). Following palatal graft harvesting, the two experimental groups received mucoadhesives containing 0.8% and 0.2% HA, while the control group received mucoadhesives without HA. In all groups, the donor site was protected with periodontal dressing. Epithelization, color match, contour, and distortion were assessed at 3, 7, 14, 21, and 42 days, postoperatively using the Landry's healing index and modified Manchester Scar Proforma (mMSP) index. Pain level and response to thermal stimuli were evaluated after 3, 7, 14, and 21 days using a visual analog scale (VAS). Data were analyzed by the Chi-square, Kruskal-Wallis, Mann-Whitney, Friedman, and Wilcoxon signed-rank tests (alpha=0.05). Results: Significant differences were observed in the mMSP index scores among the groups at 3, 7, 14, and 42 days, favoring HA groups (P<0.05). The Landry's healing index score was significantly higher in 0.8% HA group on day 21 (P=0.023), compared to the control group. No significant differences were found in pain score or thermal stimulus responses among the groups (P>0.05). Conclusion: Mucoadhesives containing HA were found to enhance palatal wound healing, leading to improved outcomes in terms of epithelization, color match, contour, and distortion reduction.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"21 ","pages":"42"},"PeriodicalIF":0.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11792737/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143188668","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}

引用次数: 0

The Effect of Human Blood and Platelet-Rich Fibrin on the Surface Microhardness of Hydraulic Calcium Silicate-Based Cements. 人血及富血小板纤维蛋白对水合硅酸钙基水泥表面显微硬度的影响。

Frontiers in Dentistry Pub Date : 2024-11-02 eCollection Date: 2024-01-01 DOI: 10.18502/fid.v21i41.16847

Noushin Shokouhinejad, Pourya Hosseini, Hasan Razmi

{"title":"The Effect of Human Blood and Platelet-Rich Fibrin on the Surface Microhardness of Hydraulic Calcium Silicate-Based Cements.","authors":"Noushin Shokouhinejad, Pourya Hosseini, Hasan Razmi","doi":"10.18502/fid.v21i41.16847","DOIUrl":"10.18502/fid.v21i41.16847","url":null,"abstract":"Objectives: This study aimed to compare the effect of human blood and platelet-rich fibrin (PRF) on the surface microhardness of hydraulic calcium silicate-based cements (OrthoMTA and RetroMTA). Materials and Methods: Two types of mineral trioxide aggregate, OrthoMTA and RetroMTA, were mixed and placed into cylindrical molds. The lower surfaces of all cements were exposed to saline. The upper surfaces of cements were exposed to human blood, PRF, or phosphate buffer saline (PBS). After storage for 7 days in fully saturated humidity at 37°C, the microhardness of cement surface exposed to blood, PRF, or PBS was measured using the Vickers microhardness test. The data were analyzed using two-way analysis of variance and post hoc Tamhane's T2 test. The significance level was set at P<0.05. Results: Exposure to blood and PRF significantly decreased the surface microhardness of OrthoMTA and RetroMTA. The microhardness of PBS-contacted cements was significantly higher than that of blood or PRF groups (P<0.001). The microhardness values for OrthoMTA exposed to PRF were significantly higher than the blood group (P=0.020). There were no significant differences between RetroMTA contacted with blood or PRF groups (P=0.985). When exposed to blood or PBS, RetroMTA had a significantly higher microhardness than OrthoMTA (P<0.001 for blood, P=0.002 for PBS). Conclusion: Exposure to blood or PRF decreased the surface microhardness of both cements. Blood-contaminated RetroMTA showed significantly higher surface microhardness than OrthoMTA contacted with blood. No significant difference was found between PRF-contacted OrthoMTA and RetroMTA.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"21 ","pages":"41"},"PeriodicalIF":0.0,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11792733/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143188735","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}

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