Quintessence international最新文献

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Honey in orabase and triamcinolone acetonide for the treatment of atrophic/erosive oral lichen planus: a randomized, blind, controlled, clinical trial. 蜂蜜糖浆膏和曲安奈德治疗萎缩性/糜烂性口腔扁平苔藓:一项随机、盲、对照临床试验
IF 1.3 4区 医学
Quintessence international Pub Date : 2025-04-22 DOI: 10.3290/j.qi.b6043838
Sally Abd El-Meniem El-Haddad
{"title":"Honey in orabase and triamcinolone acetonide for the treatment of atrophic/erosive oral lichen planus: a randomized, blind, controlled, clinical trial.","authors":"Sally Abd El-Meniem El-Haddad","doi":"10.3290/j.qi.b6043838","DOIUrl":"10.3290/j.qi.b6043838","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to evaluate the clinical efficacy of an innovative preparation, honey in orabase (50% in 1:1), for treating atrophic/erosive oral lichen planus compared with triamcinolone acetonide 0.1% ointment.</p><p><strong>Method and materials: </strong>The study involved a total of 60 patients who were randomly divided into three groups: Group I (honey in orabase 50%, 1:1 paste), Group II (triamcinolone acetonide 0.1% ointment), and the control group, Group III (orabase paste). The primary outcome measure was pain, measured on a visual analog scale, and the secondary outcome was the evaluation of the clinical manifestation through an oral lichen planus reduction score assessment.</p><p><strong>Results: </strong>Compared to Group III, Groups I and II experienced significant reductions in their pain visual analog scale scores and oral lichen planus scores. Participants in Groups I and II reported minimal to no discomfort, with Group I demonstrating the most substantial pain relief.</p><p><strong>Conclusion: </strong>In comparison to triamcinolone acetonide 0.1% ointment and the control group, the study showed that honey in orabase 50% paste is effective in the reduction of pain and lesion size in patients with atrophic/erosive oral lichen planus. Therefore, as an alternative to utilizing the traditional triamcinolone acetonide 0.1% ointment to treat atrophic/erosive oral lichen planus, honey in orabase 50% paste may be an effective treatment option.</p>","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"318-327"},"PeriodicalIF":1.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143606188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stability of soft tissue augmentation at implant site using volume-stable collagen matrix: 2-year retrospective study. 使用体积稳定的胶原基质在种植体部位增强软组织的稳定性:2年回顾性研究。
IF 1.3 4区 医学
Quintessence international Pub Date : 2025-04-22 DOI: 10.3290/j.qi.b6094895
Yaniv Mayer, Leonardo Mancini, Yarden Berg, Jamil A Shibli, Marco Zeltner, Hadar Zigdon Giladi, Eran Gabay
{"title":"Stability of soft tissue augmentation at implant site using volume-stable collagen matrix: 2-year retrospective study.","authors":"Yaniv Mayer, Leonardo Mancini, Yarden Berg, Jamil A Shibli, Marco Zeltner, Hadar Zigdon Giladi, Eran Gabay","doi":"10.3290/j.qi.b6094895","DOIUrl":"10.3290/j.qi.b6094895","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the long-term dimensional stability of dental ridges 2 years after soft tissue augmentation using a porcine-derived volume-stable collagen matrix (VCMX) at healing abutment connections.</p><p><strong>Method and materials: </strong>A retrospective study was conducted at a private clinic from 2021 to 2023, involving 13 patients who underwent delayed single implant placement in both maxillae and mandible. Three months after implant placement, the buccal soft tissue adjacent to the abutment was augmented with VCMX. Intraoral scans were taken at three points: at implant placement (baseline), 1-month post-grafting, and 24 months after implant loading. Pre-implant CBCT scans were also obtained. Volumetric and profilometric changes were measured at 1, 2, and 3 mm below the mucosal margin by superimposing intraoral and CBCT scans. The Wilcoxon signed-rank test was used for statistical analysis.</p><p><strong>Results: </strong>All 13 patients completed the 2-year follow-up. Mean volumetric changes at the graft site were + 18.15 ± 15.34 mm3 initially, decreasing by 11.73 ± 21.91 mm3 over 2 years. Profilometric analysis showed increases of 0.72 ± 0.88 mm, 0.54 ± 0.65 mm, and 0.32 ± 0.65 mm at 1, 2, and 3 mm, respectively, 1-month post-grafting. At 24 months, reductions of -0.17 ± 0.77 mm, -0.45 ± 0.58 mm, and -0.48 ± 0.60 mm were recorded.</p><p><strong>Conclusions: </strong>VCMX use for soft tissue augmentation shows minimal remodeling after 24 months, supporting its efficacy for soft tissue stability in dental implantology. Further long-term studies are recommended. (Quintessence Int 2025;56:274-283; doi: 10.3290/j.qi.b6094895).</p>","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"274-283"},"PeriodicalIF":1.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143721219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of mandibular exercises in the control of signs and symptoms of temporomandibular disorders: a randomized controlled clinical trial. 下颌运动对颞下颌疾病症状和体征控制的影响:一项随机对照临床试验
IF 1.3 4区 医学
Quintessence international Pub Date : 2025-04-22 DOI: 10.3290/j.qi.b5984433
Wagner Araújo de Negreiros, Romulo Rocha Regis, Ana Cristina de Mello Fiallos, José Eugênio Teixeira Rocha, Isaac Augusto Dantas Nogueira, Paulo Goberlânio de Barros Silva, Raniel Fernandes Peixoto
{"title":"Effect of mandibular exercises in the control of signs and symptoms of temporomandibular disorders: a randomized controlled clinical trial.","authors":"Wagner Araújo de Negreiros, Romulo Rocha Regis, Ana Cristina de Mello Fiallos, José Eugênio Teixeira Rocha, Isaac Augusto Dantas Nogueira, Paulo Goberlânio de Barros Silva, Raniel Fernandes Peixoto","doi":"10.3290/j.qi.b5984433","DOIUrl":"10.3290/j.qi.b5984433","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the effectiveness of mandibular exercises in patients with temporomandibular disorders (TMD) diagnosed by Research Diagnostic Criteria for TMD (RDC/TMD).</p><p><strong>Method and materials: </strong>Thirty-two patients seeking clinical treatment for TMD were randomly assigned to groups based on the treatment modality: conservative therapy, including occlusal splint therapy and counseling; and mandibular exercises. Muscle and joint pain were assessed using a four-point scale (0 = no pain, 1 = mild pain, 2 = moderate pain, and 3 = severe pain). The maximum unassisted mouth opening (MUMO) was measured in millimeters, both with pain and pain-free. Outcomes were evaluated at baseline (T0) and after a 3-month intervention period (T1).</p><p><strong>Results: </strong>Both treatments significantly reduced muscle and joint pain intensity at most assessed sites. The reduction in pain with mandibular exercises compared to conservative therapy was statistically significant at the right lateral pole of the temporomandibular joint (P = .048; rank-biserial correlation coefficient [rrb] = 0.348). After 3 months, mandibular exercises resulted in greater pain-free MUMO (T0 vs T1; P = .004; rrb = 0.594), and the increase in MUMO was greater than that observed with conservative therapy (P .001; rrb = 0.742).</p><p><strong>Conclusion: </strong>Mandibular exercises and conservative therapy similarly reduced palpatory pain, with mandibular exercises showing greater clinical impact at the right lateral pole. Both treatments led to significant improvements in the masseter and temperomandibular joint pole. Mandibular exercises also provided superior, clinically meaningful gains in pain-free MUMO, positioning it as a preferred option when enhancing jaw mobility is a primary goal in TMD management.</p>","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"330-338"},"PeriodicalIF":1.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143459283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adhesion of Porphyromonas gingivalis and growth of human gingival fibroblasts on modified titanium dental implant surfaces exhibiting 1,000-nm spikes. 牙龈卟啉单胞菌在改性钛牙种植体表面的粘附和人牙龈成纤维细胞的生长表现出1000 nm的峰值。
IF 1.3 4区 医学
Quintessence international Pub Date : 2025-04-22 DOI: 10.3290/j.qi.b5993849
Fariba Ashrafi, Monika Astasov-Frauenhoffer, Elizaveta Fasler-Kan, Sabrina Ruggiero, Roland Steiner, Laurent Marot, Fabien Sanchez, Sebastian Kühl, Michael M Bornstein, Khaled Mukaddam
{"title":"Adhesion of Porphyromonas gingivalis and growth of human gingival fibroblasts on modified titanium dental implant surfaces exhibiting 1,000-nm spikes.","authors":"Fariba Ashrafi, Monika Astasov-Frauenhoffer, Elizaveta Fasler-Kan, Sabrina Ruggiero, Roland Steiner, Laurent Marot, Fabien Sanchez, Sebastian Kühl, Michael M Bornstein, Khaled Mukaddam","doi":"10.3290/j.qi.b5993849","DOIUrl":"10.3290/j.qi.b5993849","url":null,"abstract":"<p><strong>Objectives: </strong>The aim of this study was to assess the antibacterial efficacy of nanostructured dental implant surfaces against Porphyromonas gingivalis, a crucial bacterium in the progression of peri-implantitis. An additional aim was to evaluate the possible effect of the modified implant surface on the viability of human gingival fibroblasts (HGnFs).</p><p><strong>Method and materials: </strong>As detailed in prior research, sputtering by helium ions was used to produce nanospiked titanium surfaces with a height of 1,000 nm (Ti1000). Smooth machined (Ti machined) and sand-blasted, large-grit, acid-etched titanium disks (TiSLA) served as controls. The antibacterial characteristics of the samples against P gingivalis were evaluated by conventional culturing and SEM. The vitality of HGnFs was assessed using the MTT assay.</p><p><strong>Results: </strong>Generally, nanostructured Ti1000 surfaces exhibited lower bacterial counts than the two controls (Ti1000 vs TiSLA -36% and Ti1000 vs Ti machined -37%) without being statistically significant. Moreover, the nanosurface did not affect the vitality of HGnFs.</p><p><strong>Conclusion: </strong>The nanospikes of the modified titanium implant surface did not hinder gingival fibroblasts' vitality or proliferation characteristics. Optimizing the spacing and height parameters of the nanospikes could further improve the antibacterial effects of this unique remodification approach.</p>","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"284-291"},"PeriodicalIF":1.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143483910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of lingual orthodontic appliances in the dimensional reduction of labial gingival recession and root prominence caused by wire syndrome in the anterior mandible: a multicenter study. 舌正畸矫治器对前下颌金属丝综合征引起的唇龈退缩和根突的缩小效果:一项多中心研究。
IF 1.3 4区 医学
Quintessence international Pub Date : 2025-04-22 DOI: 10.3290/j.qi.b5984435
Jonas Q Schmid, Christos Katsaros, Anton Sculean, Catherine Galletti, Lara Bettenhäuser-Hartung, Yann Janssens
{"title":"The effect of lingual orthodontic appliances in the dimensional reduction of labial gingival recession and root prominence caused by wire syndrome in the anterior mandible: a multicenter study.","authors":"Jonas Q Schmid, Christos Katsaros, Anton Sculean, Catherine Galletti, Lara Bettenhäuser-Hartung, Yann Janssens","doi":"10.3290/j.qi.b5984435","DOIUrl":"10.3290/j.qi.b5984435","url":null,"abstract":"<p><strong>Objective: </strong>Wire syndrome or X-effect/twist-effect describes undesired long-term tooth movements following fixed retainer placement. Since it includes root torque changes that might cause gingival recession, those situations often require periodontal, orthodontic, and conservative treatment. The aim of this study was to assess the effectiveness of fixed orthodontic treatment with completely customized lingual appliances (CCLAs) and continuous archwires for a clinically significant reduction in the dimensions of labial gingival recessions in the anterior mandible, caused by wire syndrome, in a group of consecutive patients treated with the same approach. Moreover, the reduction in root prominence of the affected teeth relative to the two neighboring teeth was evaluated.</p><p><strong>Method and materials: </strong>This retrospective cohort study from three centers included 20 consecutively recruited patients with labial gingival recession at mandibular incisors and canines due to wire syndrome. A total of 25 teeth were assessed. CCLA treatment with a standardized archwire sequence (0.012″/0.014″ NiTi, 0.016″ × 0.022″ NiTi, 0.018″ × 0.018″ beta-titanium with optional extra-torque) was identical in all three centers. Primary endpoints of recession depth, recession width, and recession surface were assessed on digital models at debonding (T1) and compared to baseline (T0) both as absolute differences (T0 - T1), and as ratios ([T0 - T1]/T0) by one-sample t tests with P .05. As a secondary endpoint, the reduction of root prominence relative to the gingival surface of the alveolar yoke of the two neighboring teeth was measured in millimeters.</p><p><strong>Results: </strong>Treatment resulted in a significant reduction in all dimensions of gingival recession. The mean reduction in recession depth was 1.86 mm (44.9%) and in recession width 0.70 mm (35.6%). The mean recession surface was reduced from 10.77 mm2 to 3.93 mm2, indicating a mean recession surface reduction of 61.4%. All changes were statistically significant (P .001). The range of recession surface reduction was from 25.4% to 100%, and 18 out of the 25 recessions showed a reduction of more than 50%. The maximum reduction in root prominence amounted to more than 3 mm.</p><p><strong>Conclusion: </strong>The use of CCLAs to torque roots of the anterior mandibular teeth, exposed by wire syndrome, towards the middle of the alveolar process reduces the area of subsequent labial gingival recession and reduces the root prominence of the affected teeth substantially. This is considered a critical step in optimizing the predictability of surgical recession coverage.</p>","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"306-317"},"PeriodicalIF":1.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143459285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Silver fluoride/potassium iodide application in hypersensitive MIH-affected molars in schoolchildren: prospective clinical evaluation of immediate and mid-term effects in desensitization. 氟化银/碘化钾在学龄儿童过敏mihav磨牙中的应用:脱敏即刻和中期效果的前瞻性临床评价
IF 1.3 4区 医学
Quintessence international Pub Date : 2025-04-22 DOI: 10.3290/j.qi.b6120624
Walaa Basem Ahmed, Ahmad Al Masri, Christian H Splieth, Julian Schmoeckel
{"title":"Silver fluoride/potassium iodide application in hypersensitive MIH-affected molars in schoolchildren: prospective clinical evaluation of immediate and mid-term effects in desensitization.","authors":"Walaa Basem Ahmed, Ahmad Al Masri, Christian H Splieth, Julian Schmoeckel","doi":"10.3290/j.qi.b6120624","DOIUrl":"10.3290/j.qi.b6120624","url":null,"abstract":"<p><strong>Objectives: </strong>This single-arm prospective interventional study evaluated the effectiveness of silver-fluoride combined with potassium-iodide (AgF+KI; Riva Star Aqua, SDI) in decreasing hypersensitivity after its application on permanent molars affected by molar incisor hypomineralization (MIH Treatment Need Index [TNI] 3 and 4) immediately (15 minutes) and after 3 months.</p><p><strong>Method and materials: </strong>In total, 22 children with 53 hypersensitive MIH-affected permanent molars (MIH TNI 3 or 4) underwent AgF+KI application after isolation with cotton rolls. Teeth included had no prior in-office desensitizing agents or sealants within 1 month before recruitment. Hypersensitivity was assessed using a 1-second air blast stimulus at three intervals: baseline, 15 minutes, and 3 months posttreatment (blinded). The response to the air-stimulus was quantified using the Schiff Cold Air Sensitivity Scale (SCASS), and teeth with grades 2 and 3 only were included. Statistical analysis involved the Wilcoxon signed-rank test, Mann-Whitney U test, and Friedman test.</p><p><strong>Results: </strong>The reported mean SCASS scores declined significantly from 2.5 (± 0.5) at baseline to 1.2 (± 0.9) after 15 minutes and 1.0 (± 1.0) after 3 months (n = 20 patients, n = 49 molars). Molars with SCASS 2 had a statistically significantly lower mean hypersensitivity score (from n = 26 to n = 24) compared to SCASS 3 teeth (from n = 27 to n = 19) at the subsequent posttreatment evaluation. However, the percentage reduction from baseline was not significant. Additionally, the reduction in hypersensitivity after AgF+KI application was almost identical for treated (desensitizing agent >1 month prior enrolment) and untreated molars.</p><p><strong>Conclusion: </strong>AgF+KI is an effective and simple desensitizer providing instant and mid-term relief in schoolchildren with hypersensitive MIH-molars.</p>","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"292-303"},"PeriodicalIF":1.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143781086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of oral health and dental hygiene habits in adolescents with intellectual and developmental disabilities: a longitudinal pilot study. 评估智力和发育障碍青少年的口腔健康和牙齿卫生习惯:一项纵向试点研究。
IF 1.3 4区 医学
Quintessence international Pub Date : 2025-04-16 DOI: 10.3290/j.qi.b6156604
Rüya Sessiz, Gizem Ayan, Berkant Sezer, İlgi Tosun
{"title":"Evaluation of oral health and dental hygiene habits in adolescents with intellectual and developmental disabilities: a longitudinal pilot study.","authors":"Rüya Sessiz, Gizem Ayan, Berkant Sezer, İlgi Tosun","doi":"10.3290/j.qi.b6156604","DOIUrl":"https://doi.org/10.3290/j.qi.b6156604","url":null,"abstract":"<p><strong>Objectives: </strong>Adolescents with intellectual and developmental disabilities (IDDs) are at increased risk of oral diseases due to physical limitations, poor oral health awareness, and inadequate dental hygiene practices. The aim of this study was to evaluate the oral health status of adolescents with IDDs and to analyze changes in their dental hygiene habits following subsequent visits and oral hygiene education.</p><p><strong>Method and materials: </strong>This pilot longitudinal observational study involved students with mild to moderate IDDs from a special needs school. Oral health was assessed using the Decayed, Missing, and Filled Teeth (DMFT) index, International Caries Detection and Assessment System (ICDAS-II), Basic Erosive Wear Examination (BEWE), Developmental Defects of Enamel (DDE), and Simplified Oral Hygiene (OHI-S) indices. Participants received oral hygiene training, and their brushing techniques were evaluated using the Oral Hygiene Skills Survey. Data on brushing frequency, skills, toothpaste use, and OHI-S scores were collected at baseline and at 1-, 3-, and 6-month follow-ups.</p><p><strong>Results: </strong>Twenty-three participants aged 14-19 were evaluated, showing high DMFT scores (mean 10.91 ± 6.06), advanced caries in 78.3%, and enamel defects and erosive tooth wear in 65.2%. Significant improvements were observed in toothbrushing frequency (P = .008), with reductions in OHI-S scores (P = .001) and enhanced brushing skills (P = .016) during follow-ups.</p><p><strong>Conclusion: </strong>The findings indicate a high prevalence of dental caries, enamel defects, and erosive tooth wear among adolescents with IDDs. Despite poor baseline oral hygiene practices, regular follow-ups and oral hygiene education significantly improved oral hygiene habits and outcomes.</p>","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"0"},"PeriodicalIF":1.3,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144044577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of prolonged heating protocols on the physico-mechanical properties of resin composites. 长时间加热对树脂复合材料物理力学性能的影响。
IF 1.3 4区 医学
Quintessence international Pub Date : 2025-04-16 DOI: 10.3290/j.qi.b6156608
Pedro Magão, Sharmila Samuel, Guilherme Moura, Georgia Mesquita, Karen McPherson, Sorin Teich, Fabio Rizzante
{"title":"Influence of prolonged heating protocols on the physico-mechanical properties of resin composites.","authors":"Pedro Magão, Sharmila Samuel, Guilherme Moura, Georgia Mesquita, Karen McPherson, Sorin Teich, Fabio Rizzante","doi":"10.3290/j.qi.b6156608","DOIUrl":"https://doi.org/10.3290/j.qi.b6156608","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to evaluate the physical-mechanical behavior of resin composites when subjected to different prolonged heating protocols.</p><p><strong>Method and materials: </strong>A total of 150 specimens were divided into 15 groups (n = 10 per group) based on the restorative materials (Filtek Supreme, Viscalor, and Grandioso) and heating protocols: room temperature (22 °C), 24 hours at 68 °C, 7 days at 68 °C, 30- and 100- cycles of artificial aging by thermocycling (5 and 68 °C for 10 minutes each). The materials were inserted into a PVS matrix, cured for 20 seconds using a 1000 mW/cm² LED light-curing unit, stored for 24 hours in. The response variables measured were flexural strength and Knoop microhardness.</p><p><strong>Results: </strong>The flexural strength evaluation showed that Grandioso exhibited higher strength compared to Filtek Supreme and Viscalor, with no significant differences observed across the heating protocols. This indicates that prolonged heating did not affect the flexural strength of any of the tested resins. Knoop microhardness testing revealed significant differences among resins and heating protocols. Grandioso demonstrated the highest surface hardness across all protocols, while Filtek Supreme showed a decrease in hardness after 100 thermocycling cycles. Prolonged heating reduced surface hardness for Grandioso and Viscalor compared to room temperature, whereas Filtek Supreme maintained its hardness under extended heat exposure.</p><p><strong>Conclusion: </strong>These findings suggest that while flexural strength remains unaffected by heating, surface hardness varies depending on the resin type and the heating duration.</p>","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"0"},"PeriodicalIF":1.3,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144017550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Management and coping of dental clinics during the COVID-19 pandemic: a cross-sectional study in three countries. COVID-19大流行期间牙科诊所的管理和应对:三个国家的横断面研究
IF 1.3 4区 医学
Quintessence international Pub Date : 2025-04-16 DOI: 10.3290/j.qi.b6153663
Gisela Berenstein Ajzman, Shada Fadela, Patricia Batista Lopes do Nascimento, Leticia Maria Correia Pimentel, Sonu Acharya, Sarit Naishlos, Sigalit Blumer
{"title":"Management and coping of dental clinics during the COVID-19 pandemic: a cross-sectional study in three countries.","authors":"Gisela Berenstein Ajzman, Shada Fadela, Patricia Batista Lopes do Nascimento, Leticia Maria Correia Pimentel, Sonu Acharya, Sarit Naishlos, Sigalit Blumer","doi":"10.3290/j.qi.b6153663","DOIUrl":"https://doi.org/10.3290/j.qi.b6153663","url":null,"abstract":"<p><strong>Objective: </strong>To examine the changes in dental practice in response to the COVID-19 pandemic 6 to 12 months after its outbreak.</p><p><strong>Method and materials: </strong>An electronic survey was disseminated among dental practitioners from Brazil, India, and Israel between August 2020 and April 2021. The questionnaire comprised two sections: 1) participant demographics and participant characteristics, and 2) working conditions during the COVID-19 pandemic.</p><p><strong>Results: </strong>In total, 979 respondents (72.6% females) completed the questionnaire (56.9% Brazilian, 24.6% Israeli, 18.5% Indian). About two-thirds of Brazilian (62.1%) and Indian respondents (68.4%) and 54.8% of Israeli respondents provided emergency care during the first wave of the pandemic; a fifth or lower treated patients with COVID-19. Most respondents reported changes in their appointment management, along with decreased income compared to the period before the pandemic, attributed to the decrease in the number of treatments together with increased expenses, mainly on equipment, protection, and disinfection. More than half of Indian and Israeli respondents reported that guidelines provided by the Ministry of Health were very clear, compared to 31% of Brazilian dental practitioners. Only 35.8% of Brazilian respondents reported that they had received clear instructions regarding conduct in the clinic compared to 69% and 72% of Indian and Israeli respondents, respectively.</p><p><strong>Conclusions: </strong>Dental practitioners from three very different countries around the world faced similar challenges in their practices during the first months of the COVID-19 pandemic. Although most participants adjusted to the alterations in their professional routines necessitated by pandemic-related restrictions, these modifications also resulted in shifts in clinicians' workloads, elevated expenditures, and reduced income. Public health guidelines provided to dental practices by the authorities were not always clear. Understanding these challenges and how to deal with them should help cope better with future worldwide crises. (Quintessence Int 2025;56:2-16; doi: ##.####/j.qi.a#####).</p>","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"0"},"PeriodicalIF":1.3,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144014607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Daily supervised toothbrushing in kindergartens: second and third years of "Smiles" oral health promotion program among preschool children. 幼儿园每日监督刷牙:学龄前儿童“微笑”口腔健康促进计划的第二年和第三年。
IF 1.3 4区 医学
Quintessence international Pub Date : 2025-04-16 DOI: 10.3290/j.qi.b6156591
Hadas Goldberg, Guy Tobias, Zvi Feine, Merav Kynan Orenstein, Harold Sgan-Cohen, Jonathan Mann, Avi Zini, Nirit Yavnai, Yuval Vered
{"title":"Daily supervised toothbrushing in kindergartens: second and third years of \"Smiles\" oral health promotion program among preschool children.","authors":"Hadas Goldberg, Guy Tobias, Zvi Feine, Merav Kynan Orenstein, Harold Sgan-Cohen, Jonathan Mann, Avi Zini, Nirit Yavnai, Yuval Vered","doi":"10.3290/j.qi.b6156591","DOIUrl":"https://doi.org/10.3290/j.qi.b6156591","url":null,"abstract":"<p><strong>Objectives: </strong>To describe the second and third years of \"Smiles\", with the objective of demonstrating feasible, practical, and realistic aspects of enhancement of daily tooth brushing skills and integration of a supportive environment of daily-supervised tooth brushing in kindergartens.</p><p><strong>Methods and materials: </strong>Thirty-six out of 180 kindergartens (20%) across Israel, which participated at the first year of the program, took part at the second and third years of the program. Eighteen kindergartens served as study group with a supervised tooth-brushing routine, and 18 kindergartens served as controls without supervised tooth-brushing routine. Tooth-brushing skills recorded by Simmons index at base line among 3-year-old children, after one year and finally after two years among 5-year-old children. ECC (early childhood caries) evaluated by deft index among 5-year-old childrenat the end of the program. Statistical analysis included Chi-square test, Mann-Whitney test, and aGeneral Linear Model.</p><p><strong>Results: </strong>One thousand and twenty eight (1,028) preschool children (503 of them in the daily toothbrushing kindergartens), their parents, and their educational staff took part in the program. The average number of brushing days per week at the daily-supervised tooth brushing kindergartens met the desired threshold of 3 days a week. The average daily percentage of preschool children brushing their teeth exceeded 80%. High levels of program cooperation and satisfaction (>80%) were recorded. Children in tooth brushing kindergartens demonstrated statistically significant three fold higher levels of tooth brushing skills improvement as compared to children in control kindergartens (33% as compared to 11%, p<0.001 respectively). Being in the Jewish sector and participation in daily tooth brushing program revealed as predictors of low dft scores among 5 year old children (OR=0.320, OR=0.552, p<0.001 respectively).</p><p><strong>Conclusion: </strong>The successful performance and positive atmosphere of \"Smiles\" in all its levels; the organization, the staff, the parents, and the children, made this endeavor an example of a large-scale demonstration program with practical and realistic enhancement of daily tooth brushing skills and integration of daily-supervised tooth brushing among preschool children in kindergartens. Following the introduction of \"Smiles\" program results to the Ministry of Health in 2017, this service has turn to a fait accompli as part of the dental health services for pupils in Israel in 2018.</p>","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"0"},"PeriodicalIF":1.3,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143995822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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