International journal of dental hygiene最新文献

{"title":"Empathy, Professional Quality of Life and Stress Coping Strategies Among Dental Hygienists—A Cross-Sectional Study","authors":"Nir Uziel,&nbsp;Efrat Gilon,&nbsp;Alina Haj,&nbsp;Ilana Eli","doi":"10.1111/idh.70070","DOIUrl":"10.1111/idh.70070","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Introduction</h3>\u0000 \u0000 <p>Dental hygienists work in a stressful environment and often experience substantial personal distress, which can adversely affect their empathy as well as their professional quality of life. The present study attempted to evaluate stress coping strategies and their effect on empathy, burnout, compassion satisfaction and secondary traumatic stress among dental hygienists.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A cross-sectional online survey was conducted using the following self-report questionnaires (i) Jefferson Scale of Physician Empathy for Health Professionals (JSPE-HP); (ii) professional quality of life questionnaire (ProQoL) to measure burnout, compassion satisfaction and secondary traumatic stress; and (iii) Coping Inventory for Stressful Situations—Situation Specific Coping inventory (CISS-SSC) to measure task-focused coping, emotion-focused coping and avoidance focused coping strategies.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>127 hygienists responded. Subjects' empathy could be best predicted by task-oriented coping style and burnout (stepwise linear regression, <i>R</i>² = 0.19, <i>p</i> &lt; 0.01.). Subjects' burnout could be best predicted by emotion-focused coping style, empathy and age (<i>R</i>² = 0.346, <i>p</i> &lt; 0.001.), their level of secondary traumatic stress could be best predicted by emotional-focused coping (<i>R</i>² = 0.283, <i>p</i> &lt; 0.001) and level of compassion satisfaction could be best predicted by task-focused coping style, emotion-focused coping style and professional experience (<i>R</i>² = 0.315, <i>p</i> &lt; 0.01).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Findings suggest that in the dental hygiene profession, coping styles play a significant role in empathy and the different aspects of subjects' professional quality of life. While task-coping style positively affects subjects' empathy, emotion-focused coping causes dental hygienists to be more vulnerable to secondary traumatic stress and burnout.</p>\u0000 </section>\u0000 </div>","PeriodicalId":13791,"journal":{"name":"International journal of dental hygiene","volume":"24 4","pages":"651-657"},"PeriodicalIF":1.2,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/idh.70070","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147698623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison Between the Effect of Toothbrush-Generated Ultrasound and Vibration on Tooth Movement Acceleration During Levelling and Alignment: A Randomized Controlled Clinical Trial","authors":"Wesam Mhd Mounir Bakdach,&nbsp;Rania Hadad","doi":"10.1111/idh.70082","DOIUrl":"10.1111/idh.70082","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Ultrasound and vibration have been recently introduced as methods to enhance orthodontic treatment. Although multiple patents were designed for the intraoral application, the current study aimed to assess the effect of toothbrush-generated ultrasound and vibration, in an attempt to provide patients with a practical and available method that might be used in daily orthodontics practice.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>The research sample consisted of 36 patients with moderate upper incisor's crowding who were randomly assigned into three equal groups (ultrasound, vibration and control groups). After bonding the fixed orthodontic appliance, the two interventional groups were asked to apply ultrasound and vibration for 15 min/day. Whilst the control group was not subjected to any physical stimulus. A series of dental impressions were taken each two weeks since treatment commencement. Treatment duration and percentage of improvement in Little's Irregularity Index (LII) were used to compare between the groups.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The results showed a non-significant difference between the three groups in terms of the treatment duration (<i>P</i> = 0.571) and the percentage of improvement in LII measured from dental casts at all time points.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The clinical application of both toothbrush-generated ultrasound and toothbrush-generated vibration, within the used parameters, had no effects on the total duration of treatment and tooth movement acceleration during levelling and alignment of moderate upper incisor's crowding. When comparing both approaches, no differential efficacy was observed at any time point. Future trials may investigate the effects of other parameters of ultrasound and vibration on tooth movement acceleration.</p>\u0000 </section>\u0000 </div>","PeriodicalId":13791,"journal":{"name":"International journal of dental hygiene","volume":"24 4","pages":"592-597"},"PeriodicalIF":1.2,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147837520","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}

{"title":"Assessment of the Effects of Toothbrushing and Cherry Juice on the Colour Stability of Restorative Materials in Paediatric Dentistry: An in Vitro Study","authors":"Didem Özkal Eminoğlu,&nbsp;Münevver Çoruh Kiliç,&nbsp;Merve İşcan Yapar,&nbsp;Mehpare Yener","doi":"10.1111/idh.70055","DOIUrl":"10.1111/idh.70055","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>This study assessed the impact of toothbrushing and exposure to cherry juice on the discoloration of various restorative materials commonly used in paediatric dentistry.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Forty specimens of each of the three types of restorative material (compomer, resin-modified glass ionomer cement and composite) were prepared. The specimens were immersed in cherry juice and distilled water for 10 days, forming two subgroups (brushed and unbrushed) within each material group (<i>n</i> = 10). The brushed samples were treated every 8 h for 1 min daily over 10 days. The colour change was measured at baseline and after 10 days, and the data were analysed using three-way ANOVA and Tamhane's T2 post hoc test.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>After 10 days, the brushed, cherry juice–soaked resin-modified glass ionomer cement exhibited the highest ΔE00 value (13.91 ± 2.9), while the lowest value was observed in the unbrushed, distilled water–soaked microhybrid composite (0.90 ± 0.46). Statistically significant differences were found between materials (<i>p</i> &lt; 0.001), brushed and unbrushed (<i>p</i> = 0.005), and cherry juice– and distilled water–soaked (<i>p</i> &lt; 0.001).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Brushing and the consumption of colouring negatively influence the colour stability of restorative materials. The composites demonstrate greater resistance to discoloration from brushing and exposure to coloured beverages.</p>\u0000 </section>\u0000 </div>","PeriodicalId":13791,"journal":{"name":"International journal of dental hygiene","volume":"24 4","pages":"506-512"},"PeriodicalIF":1.2,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147608759","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}

{"title":"Cariology—Related Patents in South America: Innovations in Prevention, Management and Treatment","authors":"Mara Assef Leitão Lotif,&nbsp;Lídia Audrey Rocha Valadas,&nbsp;Rosueti Diógenes de Oliveira Filho,&nbsp;Peter Bottenberg,&nbsp;Aldo Squassi,&nbsp;Thereza Cristina Farias Botelho Dantas,&nbsp;Mary Anne Medeiros Bandeira,&nbsp;Marta Maria de França Fonteles","doi":"10.1111/idh.70022","DOIUrl":"10.1111/idh.70022","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>The aim of this study was to perform a technological prospecting about the current scenario regarding patent applications involving the Cariology area in five South American countries.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This review offers general and oriented insights about patents in the Cariology area, considering active reports from 2000 through 2025. We conducted a technological prospecting on intellectual property banks of Argentina, Brazil, Chile, Paraguay and Uruguay using the keywords ‘caries’, ‘dental caries’, ‘dentistry’, ‘dental’, ‘oral’ and ‘buccal’.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>From a total of 1740 patents, companies and industries had 63.56% applications, 50.4% were claimed for compositions and 37.01% for personal products. Brazil was the most expressive with 88.39% followed by Argentina with 8.16% patent deposits. The United States was the main country of origin of patents with 41.72%. Most of the patents are A61K code (61.09%) for medical, dental or hygienic purposes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>This study demonstrates the interest in patenting compositions and products for personal use, mainly by Brazilian and American industries/companies. Based on the largest number of deposits founded, The United States demonstrates its strong influence on the international market. However, according to the patent application scenario observed, there is a need for innovation on new materials of prevention and treatment, also in detection and diagnosis techniques, as well as the protection of intellectual property developed and focused on the area of Cariology.</p>\u0000 </section>\u0000 </div>","PeriodicalId":13791,"journal":{"name":"International journal of dental hygiene","volume":"24 4","pages":"545-555"},"PeriodicalIF":1.2,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147627692","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}

{"title":"Erosion Potential of Commercial Fluoride-Free Mouthwashes on Dental Hard Tissues","authors":"Astrid C. Valdivia-Tapia,&nbsp;Adam B. Kelly,&nbsp;Anderson T. Hara,&nbsp;Jaime Aparecido Cury,&nbsp;Antonio Pedro Ricomini-Filho,&nbsp;Frank Lippert","doi":"10.1111/idh.70065","DOIUrl":"10.1111/idh.70065","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>Mouthwashes often present acidic pH, which raises concerns about their potential contribution to erosive tooth wear. This study evaluated the erosive potential of commercial fluoride-free mouthwashes using a screening method.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A convenience sample of 81 different mouthwashes was evaluated for their erosion potential (International Organization for Standardization, ISO/FDIS 28888:2013). This method measured the pH changes (ΔpH) of 25 mL of calcium phosphate solution (baseline pH 5.05 ± 0.05; mean ± standard deviation) once the test mouthwash was added (0.25 mL). Three citric acid/citrate buffers were used, with the maximum allowable ΔpH based on the strongest buffer. Each mouthwash was tested four times, and mean values, standard deviations, and the correlation/regression between the initial and final pH were calculated.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Mouthwashes presented a baseline pH range of 3.00–9.47. The reference solutions resulted in ΔpH of 0.58 ± 0.00, 0.89 ± 0.00, and 1.20 ± 0.01, respectively. None of the mouthwashes showed ΔpH higher than the strongest standard. Several unexpected results were observed: (i) nine mouthwashes with initial pH above 5.00 caused a pH drop when added to the screening solution; (ii) one mouthwash with initial pH 4.27 caused a pH drop to 4.17; and (iii) one with initial pH 4.93 caused a pH increase to 6.18. The correlation and regression values were: <i>r</i> = −0.81/<i>r</i>² = 0.65 (<i>p</i>-value &lt; 0.001).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Most mouthwashes showed no erosive potential, but unexpected pH shifts in over 10% highlight the need to refine testing methods for fluoride-free products.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>Some fluoride-free mouthwashes may contribute to dental erosion due to low pH. Identifying these products helps clinicians make safer recommendations for daily use.</p>\u0000 </section>\u0000 </div>","PeriodicalId":13791,"journal":{"name":"International journal of dental hygiene","volume":"24 4","pages":"658-667"},"PeriodicalIF":1.2,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/idh.70065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147638711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical and Biochemical Effects of Repeated Injectable Platelet-Rich Fibrin Application in Periodontitis Treatment: A Randomized Controlled Clinical Trial.","authors":"Berrak Ulu Emir, Erkan Özcan, Emre Avcı","doi":"10.1111/idh.70162","DOIUrl":"https://doi.org/10.1111/idh.70162","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to investigate the clinical and biochemical effects of repeated injectable platelet-rich fibrin (i-PRF) application into periodontal pockets following scaling and root planing (SRP) in patients with periodontitis.</p><p><strong>Methods: </strong>Twenty patients with Stage III Grade B periodontitis were enrolled in this randomized, controlled, split-mouth study. i-PRF was applied into all periodontal pockets at the test site after SRP and repeated after 2 weeks, whereas the control site received only sterile saline irrigation. Clinical periodontal parameters were recorded at baseline and at 3 months. Gingival crevicular fluid (GCF) samples were collected at baseline, on Day 7 following each i-PRF application, and at 3 months. Levels of Platelet Factor-4 (PF4), Platelet-Derived Growth Factor-BB (PDGF-BB), Transforming Growth Factor-β1 (TGF-β1), and Myeloperoxidase (MPO) were analysed using the enzyme-linked immunosorbent assay (ELISA) method.</p><p><strong>Results: </strong>In periodontal pockets with an initial depth of ≥ 4 mm, no statistically significant differences were observed between the groups in probing depth (PD) or bleeding on probing (BOP) at 3 months (p > 0.05). However, clinical attachment loss (CAL), Plaque Index (PI), and Gingival Index (GI) values were significantly lower in the test sites than the control sites at 3 months (p < 0.01, p < 0.05, and p < 0.05, respectively). TGF-β1 total amounts were higher in the test sites at Week 2 and at Month 3 (p < 0.01). MPO total amounts were higher in the test sites at Week 4 compared to control sites (p < 0.05).</p><p><strong>Conclusions: </strong>Adjunctive use of i-PRF with SRP may enhance tissue healing and improve periodontal clinical parameters.</p><p><strong>Trial registration: </strong>ClinicalTrials.gov NCT07029035, 19 June 2025 (retrospectively registered).</p>","PeriodicalId":13791,"journal":{"name":"International journal of dental hygiene","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148968225","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}

{"title":"Effectiveness of Omega-3 Fatty Acids as an Adjunct to Scaling and Root Planing in Periodontitis: A Meta-Analysis of Randomized Controlled Trials.","authors":"Onaiza Kulsum, Pedro Sampaio, Ahmad Shoeb Hashmi, Narinder Dev Gupta, Saif Khan","doi":"10.1111/idh.70166","DOIUrl":"https://doi.org/10.1111/idh.70166","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;Periodontitis is a chronic inflammatory disease driven largely by a dysregulated host immune response to bacterial biofilm. Omega-3 polyunsaturated fatty acids have anti-inflammatory and pro-resolving properties and have been proposed as an adjunct to scaling and root planing (SRP), but findings across individual trials remain inconsistent. This systematic review and meta-analysis aimed to evaluate the clinical efficacy of adjunctive omega-3 fatty acids compared with SRP alone or SRP plus placebo in patients with periodontitis.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;A systematic search of PubMed, Scopus, Cochrane Library, grey literature and Google Scholar was conducted in accordance with PRISMA 2020 and Cochrane Handbook guidelines. Randomized controlled trials comparing SRP with adjunctive omega-3 supplementation to SRP alone or SRP plus placebo were included. Probing pocket depth (PPD) and clinical attachment level (CAL) were pooled as mean differences (MD), given that these outcomes were measured in the same unit (millimetres) across studies, while gingival index (GI), bleeding on probing (BOP) and plaque index (PI) were pooled as standardized mean differences (SMD), reflecting differing measurement scales. A random-effects model (Restricted Maximum-Likelihood method) was used, with heterogeneity quantified by the I&lt;sup&gt;2&lt;/sup&gt; statistic. Two sensitivity analyses were performed for each outcome: a leave-one-out analysis and a separate analysis excluding the one study whose data were converted from medians and interquartile ranges. Certainty of evidence was assessed using GRADE.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;Fifteen randomized controlled trials met the inclusion criteria. Adjunctive omega-3 significantly reduced PPD (15 studies, n = 617; MD = -0.43 mm; 95% CI -0.68 to -0.18; I&lt;sup&gt;2&lt;/sup&gt; = 92%) and improved CAL (12 studies, n = 514; MD = -0.47 mm; 95% CI -0.76 to -0.18; I&lt;sup&gt;2&lt;/sup&gt; = 89%). Significant benefits favouring omega-3 were also found for GI (7 studies, n = 297; SMD = -0.59; 95% CI -1.09 to -0.09; I&lt;sup&gt;2&lt;/sup&gt; = 76%), BOP (7 studies, n = 318; SMD = -0.95; 95% CI -1.60 to -0.31; I&lt;sup&gt;2&lt;/sup&gt; = 86%) and PI (9 studies, n = 407; SMD = -0.34; 95% CI -0.66 to -0.02; I&lt;sup&gt;2&lt;/sup&gt; = 60%). Both sensitivity analyses confirmed the direction and statistical significance of all pooled estimates. Certainty of evidence, assessed by GRADE, ranged from very low to low across outcomes.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;Adjunctive omega-3 fatty acid supplementation was associated with statistically significant improvements in PPD, CAL, GI, BOP and PI compared with SRP alone or SRP plus placebo. However, given the very low to low certainty of the underlying evidence and the substantial heterogeneity across included trials, these findings should be interpreted with caution, and omega-3 supplementation should currently be regarded as a supportive adjunct rather than a substitute for conventional periodontal therapy pending","PeriodicalId":13791,"journal":{"name":"International journal of dental hygiene","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148967865","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}

{"title":"Integrating Supragingival Scaling and Biofilm Management Into Breast Cancer Patients' Care.","authors":"Kelly R V Villafuerte, Francisco J Candido Dos Reis, Hélio H A Carrara, Cristhiam H Martinez, Daniela B Palioto","doi":"10.1111/idh.70156","DOIUrl":"https://doi.org/10.1111/idh.70156","url":null,"abstract":"<p><strong>Objective: </strong>The study was designed as a quasi-experimental clinical trial to evaluate the impact of chemotherapy on periodontal conditions, haematology and salivary flow in patients with breast cancer and gingivitis, after supragingival scaling.</p><p><strong>Materials and methods: </strong>They were divided into patients with breast cancer and gingivitis (BC/G = 20); and patients without cancer with gingivitis (G = 20). Clinical parameters [Plaque Index (PI), bleeding on probing (BOP), Probing Depth (PD), Clinical Attachment Level (CAL)], haematological parameters (complete blood count) and salivary flow were evaluated at baseline, 6, 12 and 24 weeks.</p><p><strong>Results: </strong>After supragingival scaling, both groups exhibited a reduction in BOP and PI. However, the group without cancer (G) showed a significantly (p < 0.05) greater reduction at weeks 12 and 24 compared to the group with cancer (BC/G). In the haematological parameters, the G group showed higher haemoglobin and red blood cell levels than the BC/G group at 6, 12 and 24 weeks (p < 0.05). The salivary flow rate was decreased at 6, 12 and 24 weeks in cancer patients (< 0.3 mL/min); however, they did not show hyposalivation (< 0.1 mL/min).</p><p><strong>Conclusion: </strong>Chemotherapy negatively impacts periodontal conditions, making it difficult to control inflammation, affects haematological parameters and reduces salivary flow rate, although without causing hyposalivation. This highlights the need for the application of supragingival scaling with strict biofilm control in breast cancer patients.</p>","PeriodicalId":13791,"journal":{"name":"International journal of dental hygiene","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148919562","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}

{"title":"Does Hydrogen Peroxide/Colloidal-Silver Reduce the Aerosolized Bacteria Generated During Dental Procedures?","authors":"Ayşe Bulut, Faik Serhat Özsoy, Gülçin Akca, Nazime Tuncay, Ömer Engin Bulut","doi":"10.1111/idh.70167","DOIUrl":"https://doi.org/10.1111/idh.70167","url":null,"abstract":"<p><strong>Objectives: </strong>Bioaerosols containing live microorganisms that may cause disease development are formed during many dental procedures. Although some recent studies have addressed reduction of the aerosolized bacterial load, none have examined the use of hydrogen peroxide (H₂O₂)/colloidal-silver for this purpose. The current study aimed to evaluate the reduction of aerosolized bacteria during dental procedures at different distances and directions and investigate the efficacy of H₂O₂/Colloidal-silver on Staphylococcus aureus.</p><p><strong>Methods: </strong>Group A (n = 300) was the control group where sterile distilled water was used. Group B (n = 300) was the study group, where sterile distilled water with 500 ppm H₂O₂/Colloidal-silver was used. Blood agar plates were placed at the 3, 6, and 9 o'clock positions and the head position (relative to 12 o'clock) at different distances; the head phantom's jaws were then contaminated with bacterial suspension at each position. The plates were then incubated for 24-48 h. The grown colonies were counted and expressed as colony-forming units (CFU)/plate. Statistical analysis was performed using the Mann-Whitney U test for comparing independent samples.</p><p><strong>Results: </strong>There were statistically significant differences between Group A and Group B bacterial counts at 50, 100, and 200 cm distances at the 6 o'clock position, and at 100 and 200 cm distances at the 9 o'clock position (p < 0.001, remaining significant after Bonferroni correction). There was a notable reduction in Group B at the head position compared to Group A.</p><p><strong>Conclusion: </strong>The findings showed that H₂O₂/Colloidal-silver (0.05%) had bactericidal efficacy against settled Staphylococcus aureus contamination at the positions tested.</p>","PeriodicalId":13791,"journal":{"name":"International journal of dental hygiene","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148919656","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}

{"title":"Tooth Discoloration Potential of Coffee With Common Additives and the Effectiveness of Whitening Toothpastes in Stain Removal.","authors":"Soyeon Kim, Wanki Lee, Van Mai Truong, Napas Lappanakokiat, Chang-Ha Lee, Young-Seok Park","doi":"10.1111/idh.70160","DOIUrl":"https://doi.org/10.1111/idh.70160","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to evaluate the influence of common coffee additives on tooth discolouration and assess the effectiveness of two commercially available whitening toothpastes in removing these stains.</p><p><strong>Materials and methods: </strong>Sixty bovine enamel specimens were randomly assigned to six groups (n = 10 per group) according to the coffee solution used: black coffee (control), coffee with sugar, stevia, Sweet'N Low, Splenda, or cream. Specimens were immersed for 7 days, and colour measurements were obtained every 24 h using a spectrophotometer and quantified using the CIEDE2000 colour difference formula (ΔE₀₀). After staining, specimens were brushed with either a hydrogen peroxide-based toothpaste (V) or an abrasive-based toothpaste (WS) for up to 10,000 cycles, with colour measurements repeated during the brushing phase (1000, 3000, 5000). An additional 18 specimens (n = 3 per group) were sectioned to evaluate stain penetration depth using a microspectrophotometer. Colour change data were analysed using a linear mixed-effects model and one-way ANOVA with Tukey's post hoc test (α = 0.05).</p><p><strong>Results: </strong>The linear mixed-effects model showed that tooth discoloration increased significantly with immersion time (β = 1.27, p < 0.001). A significant interaction between additive group and immersion time was observed for the cream group (β = -0.776, p < 0.001), indicating a slower rate of discoloration than the control. After 7 days, one-way ANOVA revealed significant differences among additive groups (p = 0.017), with the cream group showing the least discoloration (ΔE₀₀ = 7.26 ± 2.34) and the Splenda group the greatest (ΔE₀₀ = 14.48 ± 0.91). Brushing significantly reduced discoloration across cycles (β = 0.338, p < 0.001), but no significant differences were observed between toothpaste formulations (p = 0.443) or in the toothpaste-cycle interaction (p = 0.306). Cross-sectional analysis showed pigment penetration into enamel and dentine, with the cream group exhibiting the lowest subsurface discoloration.</p><p><strong>Conclusion: </strong>Coffee additives affect the degree of tooth discoloration, with cream showing a protective effect. Both whitening toothpastes were effective, but the hydrogen peroxide formulation generally performed slightly better, potentially due to its deeper stain removal capability.</p>","PeriodicalId":13791,"journal":{"name":"International journal of dental hygiene","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148911868","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}