Quintessence international最新文献_第2页

The effect of surface treatment and glass-ceramic coating on the wear behavior of different types of zirconia and their antagonists. 表面处理和玻璃陶瓷涂层对不同类型氧化锆及其拮抗剂磨损行为的影响。

IF 1.3 4区医学

Quintessence international Pub Date : 2025-06-20 DOI: 10.3290/j.qi.b6184321

Märit Martha Müller, Sebastian Hahnel, Angelika Rauch, Martin Rosentritt

{"title":"The effect of surface treatment and glass-ceramic coating on the wear behavior of different types of zirconia and their antagonists.","authors":"Märit Martha Müller, Sebastian Hahnel, Angelika Rauch, Martin Rosentritt","doi":"10.3290/j.qi.b6184321","DOIUrl":"10.3290/j.qi.b6184321","url":null,"abstract":"Objectives: This in-vitro study aimed to investigate the influence of different pretreatments and surface coatings on the wear of different zirconia and their antagonists.Method and materials: Zirconia specimens (3-, 4- and 5-mol% yttria tetragonal zirconia; n = 160/material) were subjected to pretreatment (airborne-particle abrasion, 50 µm Al2O3, 1 bar; 120 µm Al2O3, 3 bar; polishing) and surface coating (spray glazing, micro-layering, layering, veneering). References comprised no pretreatment or coating. Wear tests were performed (50 N, 120,000 cycles). Wear (mean, maximum, antagonist) and arithmetic mean roughness Ra and average roughness depth Rz were determined. ANOVA, Bonferroni, and Pearson correlation (α = .05) were performed.Results: Ra/Rz showed significant (P < .001) differences (Ra: 0.01 ± 0.01 µm to 0.71 ± 0.06 µm; Rz: 0.31 ± 0.09 µm to 4.33 ± 0.44 µm). Two groups could be distinguished by mean and maximum wear with significant (P < .001) differences: (1) glaze sprayed and without coating (mean wear: 9.4 ± 2.6 µm to 57 ± 21.3 µm, max. wear: 24.1 ± 6.9 µm to 125.4 ± 18.2 µm) and (2) all coating procedures (mean wear: 129.2 ± 22.8 µm to 236.5 ± 62.0 µm; max. wear: 188.7 ± 21.4 µm to 444.2 ± 110.6 µm). Antagonist wear (9.2 ± 4.5 to 29.7 ± 5.0%) showed a significant (P < .001) correlation to surface coating, mean and maximum wear, and Ra and Rz. Mean wear significantly (P < .001) correlated with surface coating, maximum wear, and antagonist wear.Conclusion: Under clinical conditions, layering or veneering can lead to increased wear of the restoration, but in return reduce the abrasion of antagonists. Excessively rough surface treatments should be avoided, as they might increase antagonist wear.","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"432-441"},"PeriodicalIF":1.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064427","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

Resin infiltration for the esthetic treatment of molar-incisor hypomineralization: 1-year follow-up. 树脂浸润美容治疗磨牙切牙矿化低：1年随访。

IF 1.3 4区医学

Quintessence international Pub Date : 2025-06-20 DOI: 10.3290/j.qi.b6217993

Rafaelly Cubas Camargo, Cristian Higashi, João Luiz Bittencourt De Abreu, Ronaldo Hirata

引用次数: 0

Fractal analysis evaluation of regenerated bone in grafted and graftless maxillary sinus elevation procedures. 分形分析评价植骨和无植骨上颌窦提升术再生骨。

IF 1.3 4区医学

Quintessence international Pub Date : 2025-06-18 DOI: 10.3290/j.qi.b6309977

Ayşe Gül Öner Talmaç, Alaettin Koç, Ahmet Cemil Talmaç, Levent Ciğerim, Metin Çalışır, Emre Gürkan Eroğlu

{"title":"Fractal analysis evaluation of regenerated bone in grafted and graftless maxillary sinus elevation procedures.","authors":"Ayşe Gül Öner Talmaç, Alaettin Koç, Ahmet Cemil Talmaç, Levent Ciğerim, Metin Çalışır, Emre Gürkan Eroğlu","doi":"10.3290/j.qi.b6309977","DOIUrl":"https://doi.org/10.3290/j.qi.b6309977","url":null,"abstract":"Objective: The aim of this study was to quantitatively calculate and compare the changes in regenerated bone around the implant in graftless and grafted sinus lift procedures using fractal dimension (FD) analysis, and to provide an additional criterion for clinical preference.Methods and materials: The study included 65 patients (29 graftless and 36 grafted) at the Faculty of Dentistry in xxxxxxxxxxxxxxxxxxxxxx. Graftless and grafted sinus lift techniques were compared in terms of FD and bone density (BD) on panoramic radiographs. Student's t-test was used to compare the mean values of FD and BD in patients with graftless and grafted sinus lifting. Pearson's correlation coefficient was used to analyse the correlation of FD and BD data with age. Statistical significance was accepted at a p < .05.Results: The FD and BD were not statistically significant between two groups (p>.05). The FD and BD parameters were higher in men for both sinus lift techniques.Conclusions: This study has shown that the graftless and grafted sinus lift techniques have similar FD and BD outcomes. Therefore, we conclude that the graftless technique is preferable for maxillary sinus lift because of its relatively simple technique.","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"0"},"PeriodicalIF":1.3,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144326731","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

Mobilization of impacted teeth in the digital age: a technical note. 数字时代埋伏牙的动员：技术说明。

IF 1.3 4区医学

Quintessence international Pub Date : 2025-06-18 DOI: 10.3290/j.qi.b6309966

Carolien A J Bauer, Frederic Bouffleur, Lutz D Hodecker, Christopher J Lux, Marie-Therese Heberer, Juliana M K Mielke

{"title":"Mobilization of impacted teeth in the digital age: a technical note.","authors":"Carolien A J Bauer, Frederic Bouffleur, Lutz D Hodecker, Christopher J Lux, Marie-Therese Heberer, Juliana M K Mielke","doi":"10.3290/j.qi.b6309966","DOIUrl":"https://doi.org/10.3290/j.qi.b6309966","url":null,"abstract":"Objectives: Tooth mobilization is a challenging orthodontic treatment. Inadequate interdisciplinary communication between surgery and orthodontics, as well as limited knowledge of the topography of the surgical field, can lead to unfavorable positioning of the appliance. This can result in dangerous force vectors for tooth movement. Comprehensive digital planning and customized tools could reduce these sources of error. Two cases of impacted canines were treated using cutting guides (CG) and customized attachments (CA).Methods and materials: A CBCT and intraoral scan were taken for planning. A CAD process was used to design a CG and a CA according to the required force vectors (OnyxCeph3™, Image Instruments GmbH, Chemnitz, Germany). Using various CAM processes, the CG (Biomed Clear Resin, Formlabs GmbH, Berlin, Germany) and a CA dummy (Permanent Crown Resin, Formlabs GmbH, Berlin, Germany) were fabricated in a 3D printer (Form 3b, Formlabs GmbH, Berlin, Germany). The CA was fabricated from titanium using the SLM process (OrthoLIZE GmbH, Nienhagen, Germany). The teeth were surgically exposed using the CG and CA dummies. The CA was conventionally cemented using Transbond XT (3M Unitek, Monrovia, CA, USA).Results: All teeth were successfully exposed with the CG. The CA could only be placed in the predetermined position according to the digital planning.Conclusion: The 3D planned CG can help to shorten the surgical procedure and keep the surgical field as small as possible. The 3D planned CA allows precise positioning. The digitally planned force vectors should prevent side effects on adjacent teeth and allow targeted mobilization. However, studies are needed for further validation.","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"0"},"PeriodicalIF":1.3,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144326732","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

Parental knowledge of oral prophylaxis and recommended fluoride concentration in toothpastes for children in Israel. 以色列父母对口腔预防的知识和儿童牙膏中建议的氟化物浓度。

IF 1.3 4区医学

Quintessence international Pub Date : 2025-06-12 DOI: 10.3290/j.qi.b6287918

Ieva Avidana, Aaya Shahin, Jomana Hassan, Samer Srouji, Mervat Khoury Absawi

{"title":"Parental knowledge of oral prophylaxis and recommended fluoride concentration in toothpastes for children in Israel.","authors":"Ieva Avidana, Aaya Shahin, Jomana Hassan, Samer Srouji, Mervat Khoury Absawi","doi":"10.3290/j.qi.b6287918","DOIUrl":"https://doi.org/10.3290/j.qi.b6287918","url":null,"abstract":"Purpose: To evaluate parents' knowledge of the Israeli Ministry of Health guidelines on basic oral health practices and appropriate toothpaste usage for different pediatric age groups.Method: Anonymous questionnaires were distributed to parents attending the Pedodontics Department. The questionnaire included two sections: general questions and questions that were completed for all children in the family, categorizing them into three age groups-under 2 years, 2-6 years, and over 6 years.Results: A total of 242 questionnaires and 410 responses across different age groups were collected. Most respondents knew that teeth should be brushed as soon as the first tooth appears and believed that the first dental visit should be at age two (60.5% and 26.9%, respectively). However, only 15% of parents answered boths questions correctly. Toothpaste selection was primarily based on age (46.6%), with no significant differences across age groups for correct answer (p = 0.130). Awareness of the recommended fluoride concentration was low (16.1%), though parents of older children showed better knowledge (p = 0.040). Appropriate toothpaste amounts were used in 30.2% of the cases, with the 2-6 year age group demonstrating the highest awareness (p < 0.001). Only 3.7% of parents correctly answered all three toothpaste-related questions. Overall, the knowledge score for toothpaste guidelines was highest in the middle-aged group (31.21%, SD = 28.66, p < 0.001).Conclusion: A minority of parents are familiar with recommended early dental care practices and correct toothpaste usage. The findings emphasize the need to improve parental awareness from the very beginning of a child's development.","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"0"},"PeriodicalIF":1.3,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144275837","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 recombinant human bone morphogenetic protein-2 (rhBMP-2) on the volumetric contraction of post-extraction sockets: a double-blinded randomized controlled clinical trial. 重组人骨形态发生蛋白-2 （rhBMP-2）对拔牙后牙槽容积收缩的影响：一项双盲随机对照临床试验。

IF 1.3 4区医学

Quintessence international Pub Date : 2025-05-22 DOI: 10.3290/j.qi.b6184324

Leda M L Araujo, Walterson M Prado, Elton G Zenobio, Leonardo P Faverani, João Gabriel S Souza, Gustavo Vicentis Oliveira Fernandes, Jamil A Shibli

{"title":"Effect of recombinant human bone morphogenetic protein-2 (rhBMP-2) on the volumetric contraction of post-extraction sockets: a double-blinded randomized controlled clinical trial.","authors":"Leda M L Araujo, Walterson M Prado, Elton G Zenobio, Leonardo P Faverani, João Gabriel S Souza, Gustavo Vicentis Oliveira Fernandes, Jamil A Shibli","doi":"10.3290/j.qi.b6184324","DOIUrl":"10.3290/j.qi.b6184324","url":null,"abstract":"Objective: This study aimed to evaluate the effect of recombinant human bone morphogenic protein type-2 (rhBMP-2) on the alveolar ridge in the post-extraction socket in humans.Method and materials: 20 subjects with 25 teeth of the maxilla were included (11 sockets in the control [blood clot] and 14 in the test group [rhBMP-2]). The teeth were minimally and traumatically extracted. CBCT images were obtained 2 (T0) and 120 (T1) days after extraction. The buccal bone wall height, palatal bone wall height, and alveolar area were compared between both groups, as well as the volumetric contraction through overlapped images (T1 - T0) using Mimics software. The data were compared using the Mann-Whitney test (P .05).Results: The intragroup evaluation showed a significant buccal and palatal crest height resorption in the control group (P .05). In the intergroup assessment, the test group was superior to the control group in maintaining the average alveolar ridge area since the control group showed an area loss of approximately 39% between T0 and T1, whereas this reduction was approximately 15% in the test group (P .05).Conclusion: It is possible to conclude that using rhBMP-2 after tooth extraction resulted in better socket preservation, maintaining 2.5 times greater bone availability in the alveolar ridge than that of the control group.","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"364-374"},"PeriodicalIF":1.3,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144042170","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 : 2025-05-22 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":"10.3290/j.qi.b6156604","url":null,"abstract":"Objectives: Adolescents with intellectual and developmental disabilities 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 intellectual and developmental disabilities and to analyze changes in their dental hygiene habits following subsequent visits and oral hygiene education.Method and materials: This pilot longitudinal observational study involved students with mild to moderate intellectual and developmental disabilities 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.Results: Twenty-three participants aged 14 to 19 years 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.Conclusion: The findings indicate a high prevalence of dental caries, enamel defects, and erosive tooth wear among adolescents with intellectual and developmental disabilities. Despite poor baseline oral hygiene practices, regular follow-ups and oral hygiene education significantly improved oral hygiene habits and outcomes.","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"402-410"},"PeriodicalIF":1.3,"publicationDate":"2025-05-22","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

Networking, inspiration, and the future of oral health research. 网络，灵感和口腔健康研究的未来。

IF 1.3 4区医学

Quintessence international Pub Date : 2025-05-22 DOI: 10.3290/j.qi.b6217804

Ana Beatriz Cantao

引用次数: 0

Outcomes of implants placed in grafted sinuses in comparison with other regions. 鼻窦内植入物与其他部位植入物的比较。

IF 1.3 4区医学

Quintessence international Pub Date : 2025-05-22 DOI: 10.3290/j.qi.b6120629

Yung-Ting Hsu, Ida Zarrabi, Saumya Prajapati, Shale Ninneman, Diane Daubert, I-Chung Wang, Nelly Badr

{"title":"Outcomes of implants placed in grafted sinuses in comparison with other regions.","authors":"Yung-Ting Hsu, Ida Zarrabi, Saumya Prajapati, Shale Ninneman, Diane Daubert, I-Chung Wang, Nelly Badr","doi":"10.3290/j.qi.b6120629","DOIUrl":"10.3290/j.qi.b6120629","url":null,"abstract":"Objectives: The purpose of this study was to evaluate differences in marginal bone level and survival rates of implants placed in lateral-window sinus floor elevation (LSFE) sites compared to other sites.Method and materials: Patients with a history of LSFE and subsequent implant placement were identified. Clinical and radiographic data were collected by two calibrated examiners and divided into three cohorts for the analysis, including (1) implants placed in the LSFE-grafted sinus, (2) implants placed in the maxilla at sites other than grafted sinus, and (3) implants placed in the mandible. Implant survival rate and marginal bone level were recorded and calculated. The potential influences of several host-, implant-, and surgery-related factors on implant survival rate and marginal bone level were analyzed using generalized estimating equations.Results: 427 implants from 99 patients (63.8 ±12.5 years) with an average follow-up period of 32.3 ± 29.2 months were analyzed. The cumulative implant survival rate at the grafted sinuses was 93.63%. Mean marginal bone level was 0.44 ± 0.79 mm, 0.84 ± 1.21 mm, and 0.85 ± 1.16 mm for implants in group 1 (n = 142), group 2 (n = 129), and group 3 (n = 147) (P = .01). The majority of marginal bone loss occurred within the first 12 months after implant placement. The status of smoking and periodontal disease did not impact implant survival rate or marginal bone level for any group (P > .05). Neither sinus membrane perforation nor grafting materials affected marginal bone level (P > .05) in group 1.Conclusion: The utilization of LSFE and the presence of sinus membrane perforation during LSFE had no negative impact on implant outcomes.","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"344-353"},"PeriodicalIF":1.3,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143781056","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

Numb chin syndrome as initial manifestation of multiple myeloma: correlation of clinical and radiographic findings. 多发性骨髓瘤的初始表现为麻木下巴综合征：临床与影像学表现的相关性。

IF 1.3 4区医学

Quintessence international Pub Date : 2025-05-22 DOI: 10.3290/j.qi.b6217927

Almas Binnal, Joseph Katz, Ghaidaa Badabaan, Christian Edgar Davila, Anita Gohel

{"title":"Numb chin syndrome as initial manifestation of multiple myeloma: correlation of clinical and radiographic findings.","authors":"Almas Binnal, Joseph Katz, Ghaidaa Badabaan, Christian Edgar Davila, Anita Gohel","doi":"10.3290/j.qi.b6217927","DOIUrl":"10.3290/j.qi.b6217927","url":null,"abstract":"Multiple myeloma is a well-known hematologic malignancy. Development of multiple myeloma usually follows a spectrum of patterns over the course of the disease. Multiple myeloma is associated with higher relative mortality rates. Early diagnosis and management might help limit the disease process, reduce the associated morbidities, improve prognosis, survival, and quality of life among these patients. Multiple myeloma remains a diagnostic challenge owing to its diverse clinical presentation. Common symptoms associated with multiple myeloma are bone pain, anemia, generalized weakness, and weight loss. Numb chin syndrome characterized by numbness of lip and/or chin might be an initial presentation symptom in multiple myeloma patients. This manuscript presents two cases of multiple myeloma with numb chin syndrome and mandibular radiolucency. Correlation of CBCT findings with clinical symptoms of numb chin syndrome were instrumental in prompting diagnostic work up for multiple myeloma in these patients. The diagnosis was confirmed by bone marrow biopsy and other investigations. Early identification of these presentations might help reduce if not eliminate the delay encountered in the diagnosis of multiple myeloma.","PeriodicalId":20831,"journal":{"name":"Quintessence international","volume":"0 0","pages":"376-380"},"PeriodicalIF":1.3,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144079885","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