Acta Odontologica Scandinavica最新文献

{"title":"Impact of the 2018 periodontal classification on diagnosis, treatment strategies, and assessment of prognosis by dental hygienists in Swedish general dental care.","authors":"Emelie Stenberg, Nina Lundegren, Bengt Götrick, Aleksandar Milosavljevic","doi":"10.2340/aos.v85.46574","DOIUrl":"10.2340/aos.v85.46574","url":null,"abstract":"<p><p>treatment strategies, and prognostic assessments made by dental hygienists in general dentistry, compared with the 1999 classification.</p><p><strong>Materials and methods: </strong>A questionnaire comprising five patient cases was administered to dental hygienists in Sweden on two separate occasions. For each case, diagnoses, treatment plans, and prognostic assessments were proposed, first using the 1999 and subsequently the 2018 classification. Cases ranged from no marginal bone loss attributed to periodontitis and few (<10%) bleeding sites to marginal bone loss >30% and generalized inflammation (>30%). Answers from the two occasions were compared.</p><p><strong>Results: </strong>A total of 142 dental hygienists completed both questionnaires. Diagnostic assessments changed significantly in three of the five cases when using the 2018 classification (p < 0.05). In four cases, fewer treatment sessions were recommended, and more optimistic prognostic assessments were made when using the 2018 classification (p < 0.05).</p><p><strong>Conclusion: </strong>The 2018 classification resulted in greater variation in proposed diagnoses in cases without clear attachment loss and was associated with fewer recommended treatment sessions and more optimistic prognostic assessments. However, it appeared at least as effective as the 1999 classification in identifying cases with periodontitis.</p>","PeriodicalId":7313,"journal":{"name":"Acta Odontologica Scandinavica","volume":"85 ","pages":"503-510"},"PeriodicalIF":1.7,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13440219/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148629243","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":"Increased risk of periodontal disease and poor oral-related quality of life in fibromyalgia.","authors":"Katharine Hopkins, Camilla Ahlgren, Åsa Wahlin, Annarita Antelmi, Magnus Bruze, Cecilia Svedman","doi":"10.2340/aos.v85.46621","DOIUrl":"10.2340/aos.v85.46621","url":null,"abstract":"<p><strong>Objective: </strong>(1) To survey oral health in fibromyalgia (FM) and compare with population controls and (2) to assess whether patterns of contact allergy are related to oral status in FM.</p><p><strong>Materials and methods: </strong>Participants: 60 females with FM who had previously received contact allergy testing.</p><p><strong>Controls: </strong>120 age- and gender-matched individuals. Questionnaire on aspects of oral health and symptoms and Oral Health Impact Profile-14. Clinical and radiological examination regarding oral health status.</p><p><strong>Results: </strong>The degree of periodontal disease differed significantly between the FM and control groups (p = 0.017), with the difference most marked in younger patients. No difference was seen regarding dental caries and filled surfaces. FM patients had a higher prevalence of oral lesions than control patients (30.0% vs. 10.1%, p < 0.001). Younger FM patients had a poorer oral health-related quality of life than older patients. There was no relationship between oral symptoms or oral lesions and contact allergy.</p><p><strong>Conclusions: </strong>Patients with FM have a poorer oral status than controls, particularly concerning periodontitis and oral lesions. Further work is required to assess whether contact allergy may play a role in poorer oral status and systemic inflammation in FM.</p>","PeriodicalId":7313,"journal":{"name":"Acta Odontologica Scandinavica","volume":"85 ","pages":"511-519"},"PeriodicalIF":1.7,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13440220/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148629187","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":"Periodontitis and all-cause mortality in 60- and 66-year-old individuals: a 23-year prospective cohort study.","authors":"Sladjana Critén, Pia Andersson, Stefan Renvert, Johan Sanmartin Berglund, Bengt Götrick, Viveca Wallin Bengtsson","doi":"10.2340/aos.v85.46573","DOIUrl":"10.2340/aos.v85.46573","url":null,"abstract":"<p><strong>Objective: </strong>The present study aimed to investigate the association between baseline moderate-to-severe periodontitis and all-cause mortality over a 23-year follow-up among individuals aged 60 and 66 years.</p><p><strong>Materials and methods: </strong>This longitudinal study was based on data from the Swedish National Study on Aging and Care in Karlskrona, Blekinge, Sweden. A total of 340 participants aged 60 and 66 years old at baseline (2001-2003) who underwent periodontal and radiographic examination were included. Baseline data on age, sex, number of medications, smoking status, cash margin, and education were collected.</p><p><strong>Results: </strong>At baseline, 16.2% of participants had moderate-to-severe periodontitis. During the 23-year follow-up, 52.7% of participants with moderate-to-severe periodontitis died. In the adjusted survival analysis, moderate-to-severe periodontitis was associated with an increased risk of all-cause mortality (hazard ratio = 1.56; 95% confidence interval [CI] = 1.00-2.44, p = 0.050).</p><p><strong>Conclusions: </strong>Over 23-year follow-up, baseline moderate-to-severe periodontitis was associated with a higher risk of all-cause mortality among individuals aged 60 and 66 years. However, although the association was statistically significant, any sex-specific findings should be considered exploratory due to the limited number of events and the resulting wide CIs.</p>","PeriodicalId":7313,"journal":{"name":"Acta Odontologica Scandinavica","volume":"85 ","pages":"495-502"},"PeriodicalIF":1.7,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13434928/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148629277","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":"Predicting gingival embrasure risk after invisible orthodontics using multimodal data and machine learning.","authors":"Haiyan Wang, Hanfei Shi, Liping Fan, Zhang Sun, Xuelian Xiu, Hui Yuan","doi":"10.2340/aos.v85.46562","DOIUrl":"10.2340/aos.v85.46562","url":null,"abstract":"<p><strong>Objective: </strong>To develop and validate a risk prediction model for gingival embrasures after clear aligner therapy using multimodal oral data.</p><p><strong>Methods: </strong>A retrospective study of 340 patients (December 2022-June 2025) was randomly divided into training (n = 238) and validation (n = 102) sets (7:3). Univariate analysis, multivariate logistic regression, and least absolute shrinkage and selection operator regression were applied to identify independent risk factors. Three machine learning models - random forest (RF), logistic regression, and support vector machine - were constructed based on seven core variables. Model performance was assessed using area under the receiver operating characteristic curve (AUC), calibration curves, decision curve analysis, and Shapley Additive Explanations (SHAP) values for interpretability.</p><p><strong>Results: </strong>No significant baseline differences existed between sets (p > 0.05). Seven indicators were identified (p < 0.05). Multivariate analysis confirmed percentage of bleeding on probing-positive sites, interproximal alveolar bone height, and relative movement of adjacent teeth at target site as independent risk factors, while gingival thickness, proximal contact area, interdental papilla height, and buccal/lingual bone plate thickness were protective factors (p < 0.05). The RF model performed best: training AUC = 0.849 (95% CI: 0.786-0.912), validation AUC = 0.815 (95% CI: 0.720-0.910), with good calibration and net benefit. SHAP analysis highlighted gingival thickness and interproximal alveolar bone height as key predictors.</p><p><strong>Conclusion: </strong>A risk prediction model for post-clear aligner gingival embrasures was successfully developed and validated using multimodal oral data, with RF as the optimal algorithm. The model exhibits good discrimination, calibration, and clinical utility, which can be used as an objective auxiliary tool for individualized risk prediction following clear aligner therapy and supplement traditional clinical empirical judgment.</p>","PeriodicalId":7313,"journal":{"name":"Acta Odontologica Scandinavica","volume":"85 ","pages":"476-485"},"PeriodicalIF":1.7,"publicationDate":"2026-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13401248/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148547581","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":"Orthodontic treatment need assessment and treatment timing - a questionnaire survey among specialists in Denmark and Sweden.","authors":"Asta Nyvang Rank, Mikael Sonesson, Sofia Petrén, Liselotte Paulsson, Liselotte Sonnesen","doi":"10.2340/aos.v85.46501","DOIUrl":"10.2340/aos.v85.46501","url":null,"abstract":"<p><strong>Objective: </strong>To analyze national and regional differences in assessment of orthodontic treatment needs and timing for treatment between specialists in orthodontics in Denmark and Sweden. Additionally, to map the use of digital platforms in orthodontic referral processes.</p><p><strong>Materials and methods: </strong>A questionnaire comprising 20 items was developed to assess nine patient cases with different malocclusions and sent to nearly 500 board-certified orthodontic specialists in Denmark and Sweden. Each case was documented by clinical photos, line drawings of the head and face, and malocclusion descriptions. Before the start of the survey, the questionnaire was tested in both countries by eight experienced orthodontists. The survey was distributed between 06 November 2024 and 27 January 2025. Data were analyzed using chi-square tests with false discovery rate correction.</p><p><strong>Results: </strong>Two hundred and nineteen responses were included. Both intra-regional and cross-national differences were found in treatment need assessments. Danish respondents showed greater agreement, while Swedish assessments varied more. Digital referral systems were more common in Sweden but linked to an increased tendency to select patient observation rather than making a definitive assessment of treatment need. In Denmark, high agreement (> 80%) was found for treatment need in six of nine cases. One patient case was generally deemed not eligible, while one case demonstrated high variability. Significant regional differences were noted in both treatment need and timing. In Sweden, strong agreement was observed for five cases. One case showed wide variation. Regional differences were significant for some cases, both in need and preferred treatment timing.</p><p><strong>Conclusions: </strong>Specialists in Orthodontics in Denmark showed more consistent assessments than those in Sweden, likely due to national guidelines. Digital referrals were common in Sweden but linked to more varied evaluations, especially in borderline cases.</p>","PeriodicalId":7313,"journal":{"name":"Acta Odontologica Scandinavica","volume":"85 ","pages":"486-494"},"PeriodicalIF":1.7,"publicationDate":"2026-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13430413/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148547402","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":"Analysis of prosthetic outcomes and influencing factors in patients with alveolar bone atrophy.","authors":"Wei Zhang, Chang'ao Xue, Yan Chen","doi":"10.2340/aos.v85.46467","DOIUrl":"10.2340/aos.v85.46467","url":null,"abstract":"<p><strong>Objective: </strong>To investigate implant-supported prosthetic outcomes and influencing factors in alveolar bone atrophy.</p><p><strong>Material and methods: </strong>One hundred and fifty patients with atrophy receiving implants (2021-2022) were followed for 2 years. Success (n = 97, 64.7%) and failure (n = 53, 35.3%) groups were compared using univariate analysis, followed by multivariate logistic regression to identify factors associated with overall failure and Cox regression to assess time to failure.</p><p><strong>Results: </strong>Univariate analysis identified age, gender, smoking, implant length, and prosthesis type as significant (p < 0.05). Multivariate logistic regression showed short implant length (< 10 mm) as the sole independent risk factor for failure (OR = 4.418, p = 0.004); age ≥ 60 years (OR = 2.560, p = 0.094) and female gender (OR = 1.127, p = 0.807) were not significant. Multivariable Cox regression revealed age ≥ 60 years as a significant predictor of earlier failure (HR = 2.558, p = 0.010), while female gender and short implants were not (p > 0.05). Kaplan-Meier curves showed significant survival differences for age (p = 0.010), gender (p = 0.023), and implant length (p = 0.021).</p><p><strong>Conclusion: </strong>Short implant independently increases failure risk; age ≥ 60 years accelerates failure. Bone augmentation is preferred. Findings need validation.</p>","PeriodicalId":7313,"journal":{"name":"Acta Odontologica Scandinavica","volume":"85 ","pages":"460-468"},"PeriodicalIF":1.7,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13392522/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148534892","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 of the ultrasonic, Masserann, and BTR-pen techniques for removing fractured instruments with dental microscope: a CBCT-based in vitro study.","authors":"Esra Balkanlıoğlu, Aliye Kamalak, Berkcan Güner","doi":"10.2340/aos.v85.46531","DOIUrl":"10.2340/aos.v85.46531","url":null,"abstract":"<p><strong>Objective: </strong>This in vitro study compared the efficacy, dentin loss, and outcomes of ultrasonic, Masserann, and Broken Tool Remover Pen (BTR-Pen) techniques for removing fractured endodontic instruments using cone-beam computed tomography (CBCT) analysis.</p><p><strong>Materials and methods: </strong>Ninety extracted single-rooted teeth were randomly allocated into three groups (n = 30). ProTaper F2 instruments were intentionally fractured in the middle third of each canal, creating 3-4 mm fragments. Removal was performed using ultrasonic tips, Masserann trephine burs, or the BTR-Pen loop system. CBCT scans quantified dentin loss. Success rates, removal times, and complications were analyzed using one-way analysis of variance, Tukey honestly significant difference, chi-square, and likelihood-ratio chi-square tests (p < 0.05).</p><p><strong>Results: </strong>Ultrasonic removal showed the highest success rate (90.0%), followed by BTR-Pen (86.7%) and Masserann (70.0%). Pairwise likelihood-ratio chi-square analysis showed lower success for Masserann than ultrasonic removal (p = 0.049). Masserann caused significantly greater canal volume increase (4.50 ± 0.50 mm³) than ultrasonic (0.75 ± 0.30 mm³) and BTR-Pen (0.93 ± 0.40 mm³) techniques (p < 0.001). Ultrasonic removal required the shortest time (110.0 ± 35.0 s), followed by BTR-Pen (213.4 ± 40.0 s) and Masserann (240.0 ± 50.0 s).</p><p><strong>Conclusions: </strong>Ultrasonic and BTR-Pen techniques achieved high success with better dentin preservation than Masserann. When retrieval is indicated, techniques that maximize dentin preservation should be preferred to reduce the risk of root weakening and procedural complications.</p>","PeriodicalId":7313,"journal":{"name":"Acta Odontologica Scandinavica","volume":"85 ","pages":"469-475"},"PeriodicalIF":1.7,"publicationDate":"2026-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13392644/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148534908","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":"Frequency of salivary flow rate measurements in Sweden 2008-2024.","authors":"Håkan Flink, Anders Hedenbjörk-Lager, Eva Nohlert, Åke Tegelberg","doi":"10.2340/aos.v85.46503","DOIUrl":"10.2340/aos.v85.46503","url":null,"abstract":"<p><strong>Objective: </strong>Saliva flow rate measurement (SFRM) is a prerequisite for accurate diagnosis of hyposalivation, but national data about the frequency of SFRM conducted in the Swedish population are lacking. The objective was to describe performed SFRMs in the population via registration in the Swedish dental financial system and compare with the earlier reported prevalence of hyposalivation.</p><p><strong>Material and methods: </strong>A descriptive retrospective registry-based study was completed. Dental care registry data from 2008 to 2024 were investigated to determine the proportion of individuals > 25 years of age who had undergone SFRM.</p><p><strong>Results: </strong>During 2008-2024, 70,390 SFRMs were conducted in Sweden. SFRMs began to increase in 2013. SFRMs were performed more than twice as often for females than males. Measurements increased by age up to a peak at 65-69 years of age (1.7%) and decreased thereafter. The frequency of SFRM amounted to approximately 0.9% of the total Swedish population.</p><p><strong>Conclusions: </strong>The number of SFRMs performed in the Swedish population is low overall, with increased numbers in women and in older ages. The findings support that an increased use of SFRM to improve diagnosis of hyposalivation could be beneficial to understand more about the prevalence of hyposalivation and support for preventive caries treatment.</p>","PeriodicalId":7313,"journal":{"name":"Acta Odontologica Scandinavica","volume":"85 ","pages":"445-450"},"PeriodicalIF":1.7,"publicationDate":"2026-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13379885/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148454228","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":"Perceived importance of oral health among patients attending Katutura Hospital general outpatient department and dental clinic, Namibia.","authors":"Juvenary John Rutabanzibwa, Andrew Ross","doi":"10.2340/aos.v85.46511","DOIUrl":"10.2340/aos.v85.46511","url":null,"abstract":"<p><strong>Objective: </strong>To examine determinants of oral health knowledge, perceived oral health status, perceived dental needs, and clinically assessed tooth decay among adults attending Katutura Hospital, Namibia.</p><p><strong>Material and methods: </strong>A cross-sectional hospital-based study was conducted among adults attending the dental clinic and general outpatient department. Of 660 invited participants, 639 were included in the final analysis (response rate 96.8%). Data were collected using structured questionnaires assessing socio-demographic characteristics, oral health knowledge, oral hygiene practices, perceived oral health status, and perceived dental needs. Clinical oral examinations were performed to assess tooth decay. Multivariable logistic regression analyses were conducted to identify factors independently associated with the outcomes.</p><p><strong>Results: </strong>Most participants (89.7%) demonstrated good oral health knowledge. Tertiary education was the only independent predictor of good oral health knowledge (adjusted odds ratio [AOR] = 2.47; 95% confidence interval [CI]: 1.54-3.97) and was associated with lower odds of tooth decay (AOR = 0.39; 95% CI: 0.27-0.57). Brushing twice or more daily was significantly associated with good self-rated oral health (AOR = 2.03; 95% CI: 1.45-2.84). Employment status was inversely associated with perceived dental needs (AOR = 0.71; 95% CI: 0.51-0.99).</p><p><strong>Conclusions: </strong>Education was the principal determinant of oral health knowledge and clinical tooth decay, while oral hygiene practices influenced perceived oral health. Strengthening oral health promotion and improving access to preventive services may reduce inequalities and unmet dental needs in Namibia.</p>","PeriodicalId":7313,"journal":{"name":"Acta Odontologica Scandinavica","volume":"85 ","pages":"425-433"},"PeriodicalIF":1.7,"publicationDate":"2026-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13379886/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148454299","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":"Artificial intelligence in endodontic decision-making: hallucinations and emerging challenges for clinical practice.","authors":"Carlos Wesley Lopes Brasil da Silva, Mariana Souza D'Afonseca, Ana Luiza Gonzaga Zonca, Jardel Francisco Mazzi Chaves, Fabiane Carneiro Lopes Olhê, Henrico Badaoui Strazzi-Sahyon, Gustavo Sivieri-Araujo","doi":"10.2340/aos.v85.46515","DOIUrl":"10.2340/aos.v85.46515","url":null,"abstract":"","PeriodicalId":7313,"journal":{"name":"Acta Odontologica Scandinavica","volume":"85 ","pages":"451-452"},"PeriodicalIF":1.7,"publicationDate":"2026-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13382706/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148454270","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}