Frontiers in Dentistry最新文献_第9页

Effect of Different Forms of Fluoride Application on Surface Roughness of Rhodium-Coated NiTi Orthodontic Wires: A Clinical Trial. 不同形式氟化物对镀铑镍钛正畸丝表面粗糙度影响的临床试验

Frontiers in Dentistry Pub Date : 2023-01-01 DOI: 10.18502/fid.v20i13.12660

Masoud Khanloghi, Sedigheh Sheikhzadeh, Soraya Khafri, Maysam Mirzaie

{"title":"Effect of Different Forms of Fluoride Application on Surface Roughness of Rhodium-Coated NiTi Orthodontic Wires: A Clinical Trial.","authors":"Masoud Khanloghi, Sedigheh Sheikhzadeh, Soraya Khafri, Maysam Mirzaie","doi":"10.18502/fid.v20i13.12660","DOIUrl":"https://doi.org/10.18502/fid.v20i13.12660","url":null,"abstract":"Objectives: This study aimed to assess the effect of different forms of fluoride application on surface roughness of rhodium-coated nickel-titanium (NiTi) orthodontic wires. Materials and Methods: This randomized clinical trial was conducted on 15 patients randomly divided into three groups: toothbrush with Oral-B toothpaste only, Oral-B toothpaste, and daily mouthwash, Oral-B toothpaste, and sodium fluoride gel. The surface roughness indices of orthodontic wires including arithmetic mean height (Sa), root mean square height, root mean square gradient, developed interfacial area ratio (Sdr) and maximum surface height were measured by atomic force microscopy at baseline and after 6 weeks of application in the patients' mouths. Data were analyzed by paired t-test, ANOVA, Games-Howell, and Tukey-HSD tests (P<0.05). Results: All surface roughness parameters in all three groups showed a significant increase after intervention, except for Sa in the toothpaste-only group (P=0.057) and Sdr in the sodium fluoride gel group (P=0.064). Conclusion: The surface roughness of rhodium-coated NiTi orthodontic wires increases following the use of different forms of fluoride.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"20 ","pages":"13"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e6/45/FID-20-13.PMC10258391.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9632591","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

Oral Rehabilitation of a Patient with Papillon Lefèvre Syndrome Using Fixed Full-Arch Hybrid Prostheses Supported by Four Axially Loaded Implants: A Case Report with Four-Year Follow-up. 4个轴向负载种植体支持的全弓混合固定假体对左侧乳突综合征患者的口腔康复:1例随访4年的报道。

Frontiers in Dentistry Pub Date : 2023-01-01 DOI: 10.18502/fid.v20i7.12606

Sharma Pawan Kumar, Vasudevan Karthikeyan, Krishnan Murugesan, Balasubramaniam Muthukumar, Krishna Kumar Raja, Sivanesan Karthikeyan Jagdish

{"title":"Oral Rehabilitation of a Patient with Papillon Lefèvre Syndrome Using Fixed Full-Arch Hybrid Prostheses Supported by Four Axially Loaded Implants: A Case Report with Four-Year Follow-up.","authors":"Sharma Pawan Kumar, Vasudevan Karthikeyan, Krishnan Murugesan, Balasubramaniam Muthukumar, Krishna Kumar Raja, Sivanesan Karthikeyan Jagdish","doi":"10.18502/fid.v20i7.12606","DOIUrl":"https://doi.org/10.18502/fid.v20i7.12606","url":null,"abstract":"This report details the successful prosthetic rehabilitation of a 25-year-old male patient with Papillon Lefèvre Syndrome (PLS) using an implant-supported hybrid prosthesis. Six implants were placed in the maxilla, and four were placed in the mandibular arch. All implants were inserted axially (non-tilted) and were planned to be loaded after a healing period of 6 months. One implant failed due to graft loss during the healing phase, which was removed and the remaining implants were restored with a hybrid prosthesis after 6 months, using the delayed loading protocol. The patient was followed-up for four years and all the remaining implants successfully integrated and remained fully functional during this period. The prosthesis significantly improved the functional, aesthetic, and psychological well-being of the patient. This case report is the first of its kind to use only four axially placed implants for rehabilitation of a PLS patient with a successful four-year follow-up.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"20 ","pages":"7"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/83/ff/FID-20-7.PMC10258398.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9635615","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 Role of Mouthguards in Preventing Temporomandibular Joint Injuries During Contact Sports: A Prospective Study. 护齿器在预防接触性运动中颞下颌关节损伤中的作用:一项前瞻性研究。

Frontiers in Dentistry Pub Date : 2023-01-01 DOI: 10.18502/fid.v20i12.12661

Ravalika Singarapu, Elavenil Panneerselvam, Sasikala Balasubramaniam, Komagan Prabhu Nakkeeran, Mrunalini Ramanathan, Krishnakumar Raja Vb

{"title":"The Role of Mouthguards in Preventing Temporomandibular Joint Injuries During Contact Sports: A Prospective Study.","authors":"Ravalika Singarapu, Elavenil Panneerselvam, Sasikala Balasubramaniam, Komagan Prabhu Nakkeeran, Mrunalini Ramanathan, Krishnakumar Raja Vb","doi":"10.18502/fid.v20i12.12661","DOIUrl":"https://doi.org/10.18502/fid.v20i12.12661","url":null,"abstract":"Objectives: Injuries to the maxillofacial region during contact sports is a well-known issue. Protective measures have been advised to prevent and reduce these problems. Awareness regarding the role of mouthguards in preventing temporomandibular joint (TMJ) injuries during contact sports, is limited. The aim of the present study was to assess awareness regarding the use of mouthguards during contact sports and incidence of TMJ injuries in sportspersons. Materials and Methods: Eighty-six individuals training in contact sports were enrolled in the present study based on our inclusion and exclusion criteria. A questionnaire and clinical examination were used to assess TMJ pain, clicking, deviation, mouth opening, and locking. Results: The percentage of sportspersons aware of various protective gears was 23.8%. The awareness of TMJ injuries following contact sports was 6.9%, and 70.3% of the sportspersons were estimated to wear mouthguards. Clinical assessment of sportspersons using mouthguards revealed pain in 18.6% and clicking in 17.4% of the study subjects. The incidence of TMJ pain and clicking in individuals who did not use mouthguards were 81.4% and 82.6%, respectively. Conclusion: Application of mouthguards can reduce the incidence of TMJ injuries in contact sports. They also contribute significantly to the overall dental health of the athletes, as well as improving their overall athletic performance and decreasing the likelihood of other types of oral and facial injuries.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"20 ","pages":"12"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/33/c9/FID-20-12.PMC10258405.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9632592","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

Association of Serum 25-Hydroxyvitamin D and Chronic Periodontitis in Postmenopausal Women after Non-Surgical Periodontal Therapy. 绝经后妇女非手术牙周治疗后血清25-羟基维生素D与慢性牙周炎的关系

Frontiers in Dentistry Pub Date : 2023-01-01 DOI: 10.18502/fid.v20i8.12607

Adileh Shirmohammadi, Sanaz Mohammadi, Masoumeh Faramarzi, Amir Reza Babaloo, Mehrnoosh Sadighi, Solmaz Maleki Dizaj

{"title":"Association of Serum 25-Hydroxyvitamin D and Chronic Periodontitis in Postmenopausal Women after Non-Surgical Periodontal Therapy.","authors":"Adileh Shirmohammadi, Sanaz Mohammadi, Masoumeh Faramarzi, Amir Reza Babaloo, Mehrnoosh Sadighi, Solmaz Maleki Dizaj","doi":"10.18502/fid.v20i8.12607","DOIUrl":"https://doi.org/10.18502/fid.v20i8.12607","url":null,"abstract":"Objectives: Vitamin D deficiency appears to have a major effect on periodontal tissue health. The present study aimed to assess the association of the serum level of 25-hydroxyvitamin D and chronic periodontitis in postmenopausal women. Materials and Methods: This research was done on 30 postmenopausal women with chronic periodontitis who all had at least 20 natural teeth. Intravenous blood samples were taken from the study population at baseline and after completion of non-surgical periodontal treatment. This was followed by assessment of serum levels of 25-hydroxyvitamin D. Next, clinical parameters of all teeth except for third molars were measured, which included pocket depth (PD), gingival index (GI), and plaque index (PI). Data were analyzed by paired t-test and its non-parametric equivalent, the Wilcoxon test. P<0.05 was considered significant. Results: The mean PD, PI and GI before and after the intervention were significantly different (P<0.05). There was, however, no significant difference between the mean vitamin D concentrations before and after treatment (P>0.05). Conclusion: According to the results obtained in the present study, there is no association between serum vitamin D concentrations and chronic periodontitis in postmenopausal women.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"20 ","pages":"8"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/16/fd/FID-20-8.PMC10258399.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9629715","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 Cytotoxicity between Mineral Trioxide Aggregate Mixed with Chlorhexidine and Common Endodontic Regeneration Medicaments on Periodontal Ligament Stem Cells: an in Vitro Study. 氯己定与常用牙髓再生药物混合三氧化矿物聚集体对牙周韧带干细胞细胞毒性的体外比较研究。

Frontiers in Dentistry Pub Date : 2023-01-01 DOI: 10.18502/fid.v20i1.12024

Sholeh Ghabraei, Farzaneh Afkhami, Ahmad Reza Shamshiri, Zahra Mohammadi

{"title":"Comparison of Cytotoxicity between Mineral Trioxide Aggregate Mixed with Chlorhexidine and Common Endodontic Regeneration Medicaments on Periodontal Ligament Stem Cells: an in Vitro Study.","authors":"Sholeh Ghabraei, Farzaneh Afkhami, Ahmad Reza Shamshiri, Zahra Mohammadi","doi":"10.18502/fid.v20i1.12024","DOIUrl":"https://doi.org/10.18502/fid.v20i1.12024","url":null,"abstract":"Objectives: The combination of mineral trioxide aggregate (MTA) and 2% chlorhexidine (CHX) has been recently introduced as an intracanal medicament. The aim of this study was to evaluate the potential cytotoxic effects of MTA mixed with 2% chlorhexidine gel on human periodontal ligament stem cells (PDLSCs) and compare it with other common endodontic regeneration medicaments. Materials and Methods: Minimum inhibitory concentration and minimum bactericidal concentration of six experimental groups against Enterococcus faecalis was determined. The study groups consisted of RetoMTA mixed with 2% chlorhexidine gel (MTA+CHX), calcium hydroxide (CH), CH mixed with CHX gel, two concentrations of double antibiotic paste, and 2% CHX. The direct cytotoxic effect of minimum bactericidal concentration was evaluated by MTT on PDLSCs on days 1, 3, and 7. One-way ANOVA and post hoc tests were used for data analysis (P<0.05). Results: The viability of cells treated with MTA+CHX decreased significantly over time (P<0.05) making this group the most cytotoxic intracanal medicament on the 3rd and 7th days of treatment. On day one, the highest viability percentage was detected in the CH+CHX group followed by the CHX group. On day 3, CH+CHX and CHX groups displayed the highest viability percentage. On day 7, the highest viability was observed in the CHX group, which showed no significant difference with the control group (P=0.12). Conclusion: Regarding the antimicrobial potency of intracanal medicaments at minimum bactericidal concentration levels, CHX gel appears to be the least cytotoxic drug, while MTA+CHX shows the highest reduction in viability percentage.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"20 ","pages":"1"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c2/10/FID-20-1.PMC10258401.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9635611","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

Oral Health Status and Salivary Properties among Children before and after Tonsillectomy. 扁桃体切除术前后儿童口腔健康状况及唾液特性的研究。

Frontiers in Dentistry Pub Date : 2023-01-01 DOI: 10.18502/fid.v20i24.13168

Roya Ghafourifard, Fahimeh Rashidi Maybodi, Seyed Ali Mousavi, Azadeh Pourmirjafari

{"title":"Oral Health Status and Salivary Properties among Children before and after Tonsillectomy.","authors":"Roya Ghafourifard, Fahimeh Rashidi Maybodi, Seyed Ali Mousavi, Azadeh Pourmirjafari","doi":"10.18502/fid.v20i24.13168","DOIUrl":"https://doi.org/10.18502/fid.v20i24.13168","url":null,"abstract":"Objectives: Enlarged adenoids can lead to obstruction of the nasopharyngeal airway and subsequent oral respiration. Oral breathing can cause dry mouth, dehydration in gingival tissue, and resistance to plaque accumulation. This study aimed to evaluate the impact of tonsillectomy on oral health status, salivary pH and flow rate, and common complications caused by tonsillar hypertrophy in children. Materials and Methods: An analytical before-and-after study was conducted on 60 children aged 5-12 years who required tonsillectomy. We gathered data through a questionnaire and collected unstimulated saliva using the spitting method for five minutes. Salivary pH was measured by a pH meter and its volume was determined with a calibrated test tube. The plaque index, bleeding index and modified gingival index were determined using a disclosing tablet, Williams' probe and observational examination, respectively. All measurements were repeated one month after tonsillectomy. Paired t-test was used for data analysis. Results: We found a significant increase in mean pH and salivary flow rate after tonsillectomy and observed a decrease in oral health indices among the children one month after surgery. Over half of the children who reported complications such as dry mouth, itchy nose and throat, snoring, night sweats, and sleep disturbances experienced complete recovery after tonsillectomy. Conclusion: Based on the results obtained in the present study, children with enlarged adenoids showed significant improvements in salivary pH, salivary flow rate, and oral health indices, one month after tonsillectomy.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"20 ","pages":"24"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f3/1e/FID-20-24.PMC10493121.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10295531","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 Two Whitening Toothpastes on Composite Resin Restorations Discolored by 0.2% Chlorhexidine Mouthwash 两种美白牙膏对0.2%氯己定漱口液变色复合树脂修复体的影响

Frontiers in Dentistry Pub Date : 2022-12-20 DOI: 10.18502/fid.v19i38.11748

F. Ebrahimzadeh, Hooman Fakhar, Hossesin Akbari, R. Mosharraf, A. Farzad

{"title":"Effect of Two Whitening Toothpastes on Composite Resin Restorations Discolored by 0.2% Chlorhexidine Mouthwash","authors":"F. Ebrahimzadeh, Hooman Fakhar, Hossesin Akbari, R. Mosharraf, A. Farzad","doi":"10.18502/fid.v19i38.11748","DOIUrl":"https://doi.org/10.18502/fid.v19i38.11748","url":null,"abstract":"Objectives: This study compared the effect of two whitening toothpastes on composite specimens discolored with 0.2% chlorhexidine (CHX). Materials and Methods: Twenty-four composite specimens were fabricated from Charisma Diamond composite resin. The initial color of specimens was measured according to the CIE L*a*b* color system using a spectrophotometer. The specimens were immersed in 0.2% CHX twice a day for 1 minute each time, for 2 weeks. The color of specimens was measured again, and the specimens were assigned to three groups (n=8). The control group specimens were immersed in distilled water. The two test group specimens were brushed twice daily for 21 days with Oral B toothbrush and Signal White Now and Crest 3D White whitening toothpastes each time for 30 seconds. The color of specimens was measured again. Data were analyzed by one-way ANOVA and t-test. Results: CHX increased the a, b, and L color parameters in all groups. There were no significant differences in ΔL (P=0.10), Δa (P=0.24), and Δb (P=0.07) among the study groups. The a, b, and L parameters decreased after brushing the specimens discolored with 0.2% CHX with the whitening toothpastes. There were significant differences in ΔL (P=0.03), Δa (P=0.02), and Δb (P=0.01) among the three study groups after using the whitening toothpastes. The highest ΔL, Δa, Δb, and ΔE values were recorded in Crest 3D White group, followed by Signal White Now group. Conclusion: Crest 3D White whitening toothpaste had higher efficacy to resume the original color of composite specimens discolored with 0.2% CHX.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47918614","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

Abstracts of the 21st International Meeting of the Iranian Academy of Periodontology 伊朗牙周病学会第21届国际会议摘要

Frontiers in Dentistry Pub Date : 2022-10-21 DOI: 10.18502/fid.v19i34.11116

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引用次数: 0

Combining Circumvestibular Corticotomy with Maxillary Protraction as a Conservative Approach to Treatment in an Adolescent with Maxillary Deficiency: A Case Report with Long Term Follow-up. 前庭周围皮质切开术联合上颌前伸术保守治疗青少年上颌缺陷1例:长期随访1例。

Frontiers in Dentistry Pub Date : 2022-08-11 eCollection Date: 2022-01-01 DOI: 10.18502/fid.v19i28.10599

Farzad Piroozmand, Mohsen Shirazi, Behzad Salari, Hooman Zarnegar

{"title":"Combining Circumvestibular Corticotomy with Maxillary Protraction as a Conservative Approach to Treatment in an Adolescent with Maxillary Deficiency: A Case Report with Long Term Follow-up.","authors":"Farzad Piroozmand, Mohsen Shirazi, Behzad Salari, Hooman Zarnegar","doi":"10.18502/fid.v19i28.10599","DOIUrl":"https://doi.org/10.18502/fid.v19i28.10599","url":null,"abstract":"Maxillary protraction with a face mask is an effective treatment for class III children with maxillary hypoplasia. However, in late adolescence, orthopedic approaches are not very effective for treatment of maxillary deficiency. The aim of this study was to report a minimally invasive technique to orthopedically treat a 16-year-old female adolescent with mild to moderate maxillary deficiency, before the cessation of growth. A circumvestibular corticotomy technique was performed followed by a regimen of rapid maxillary expansion and application of heavy extra-oral forces. After termination of the orthopedic and orthodontic phases, the patient was monitored for ten years. The dental and skeletal results immediately after treatment were compared with the results ten years after termination of treatment. A noticeable anterior displacement of \"A\" point was observed after the orthopedic phase and this remained unchanged for ten years.","PeriodicalId":12445,"journal":{"name":"Frontiers in Dentistry","volume":" ","pages":"28"},"PeriodicalIF":0.0,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/8d/1e/FID-19-28.PMC9675624.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40460724","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

Radiographic Findings of Congenital Facial Infiltrating Lipomatosis: A Case Report. 先天性面部浸润性脂肪瘤病x线表现1例。

Frontiers in Dentistry Pub Date : 2022-08-11 eCollection Date: 2022-01-01 DOI: 10.18502/fid.v19i27.10598

Hoorieh Bashizadehfakhar, Mehrdad Panjnoush, Yasaman Kheirandish, Azin Sedaghati, Faezeh Mirjalili, Sara Aliasghari Abandansari

引用次数: 0