Operative dentistry最新文献_第6页

Lest We Lose Sight: A Reprint with Foreword. 以免我们看不见：重印与前言。

IF 1.4 4区医学

Operative dentistry Pub Date : 2025-05-01 DOI: 10.2341/1559-2863-50-3-231

Kim Diefenderfer

引用次数: 0

Posterior Cantilevered Single-Retainer All-Ceramic Resin-Bonded Fixed Dental Prostheses: A 12-Year Clinical Case and Proposed Clinical Recommendations. 后悬臂单固位全陶瓷树脂粘接固定义齿：12年临床病例及临床建议。

IF 2.2 4区医学

Operative dentistry Pub Date : 2025-05-01 DOI: 10.2341/24-116-S

J-P Attal, G Tirlet, M LeCorre, P Boitelle, E Dursun, A Benoit, L Valtaud, E Caussin, P François

{"title":"Posterior Cantilevered Single-Retainer All-Ceramic Resin-Bonded Fixed Dental Prostheses: A 12-Year Clinical Case and Proposed Clinical Recommendations.","authors":"J-P Attal, G Tirlet, M LeCorre, P Boitelle, E Dursun, A Benoit, L Valtaud, E Caussin, P François","doi":"10.2341/24-116-S","DOIUrl":"10.2341/24-116-S","url":null,"abstract":"Objective: To present a clinical case featuring a posterior cantilevered single-retainer all-ceramic resin-bonded fixed dental prosthesis (PC-RBFDP) with 12 years of follow-up. This FDP was used to restore a missing premolar using a single-retainer canine abutment. The aim was also to draw clinical recommendations based on current data and experience.Methods: To address the present case, the missing premolar was replaced with a stratified 3Y-TZP zirconia PC-RBFDP fabricated from a conventional impression using CAD-CAM technology. The prosthesis was bonded using a resin luting cement containing 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP), and the patient was reevaluated semi-annually. Insights obtained from this case, along with advancements in scientific understanding based on current data, are further explored.Results: This clinical case, which occurred 12 years ago, was successful. Building on the insights gained from this case and subsequent ones, modifications to the preparation geometry have been implemented, informed by the in vitro biomechanical findings presented herein. Furthermore, a step-by-step clinical procedure is suggested, drawing from experience with other cases and the current literature on PC-RBFDPs.Conclusions: With a necessity of caution due to the limited evidence supporting this therapy, this clinical case shows promising results in the use of ceramic RBFDPs in the posterior region, providing an alternative to implants in contraindicated patients. The comprehensive approach shown in the step-by-step clinical case and the manuscript, including indication assessment, selection of bonding materials, ceramic choice, and preparation geometry, utilizes, to the best of our ability, the most current information and technology available. Continued research is needed to further validate this treatment modality.","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":"235-244"},"PeriodicalIF":2.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144209018","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

Variations in Microstructural, Thermal, and Mechanical Properties of Different CAD/CAM Lithium Disilicate Reinforced Glass Ceramics. 不同CAD/CAM技术对二硅酸锂增强玻璃陶瓷显微结构、热性能和力学性能的影响。

IF 2.2 4区医学

Operative dentistry Pub Date : 2025-05-01 DOI: 10.2341/24-133-L

L N Tavares, D C Ferraz, K K Dolenkei, K Zancopé, A C Almeida Silva, L H Raposo

{"title":"Variations in Microstructural, Thermal, and Mechanical Properties of Different CAD/CAM Lithium Disilicate Reinforced Glass Ceramics.","authors":"L N Tavares, D C Ferraz, K K Dolenkei, K Zancopé, A C Almeida Silva, L H Raposo","doi":"10.2341/24-133-L","DOIUrl":"10.2341/24-133-L","url":null,"abstract":"Purpose: This study compared four CAD/CAM lithium disilicate-reinforced glass ceramic systems (IPS e.max CAD, Rosetta SM CAD, T-lithium CAD, and IRIS CAD) regarding their crystalline and microstructural characteristics, thermal properties, mechanical strength, and bonding to a resin cement.Methods and materials: The crystalline and morphological characteristics of the ceramic microstructure were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), thermal behavior was assessed via differential thermal analysis (DTA). Mechanical properties were evaluated using a biaxial flexural strength test, and bonding to a resin cement was measured with a microshear strength test at distinct storage times. Data were evaluated using analysis of variance and Tukey HSD tests (α = 0.05).Results: High peak positions corresponding to standard lithium metasilicate and lithium disilicate with similar intensities were observed for all ceramics in the XRD analysis. SEM morphological analysis showed differences in crystal characteristics among the ceramics after HF etching. The DTA thermograms showed a crystallization process ranging from 812-872°C among the different ceramic systems. The IRIS system showed the lowest flexural strength values, while bond strengths to resin cement remained comparable among materials, regardless of storage time.Conclusions: Most lithium disilicate ceramic systems demonstrated acceptable characteristics in the tests performed, except for IRIS, which showed shortcomings in crystal morphology and mechanical strength, along with inconsistent thermal behavior. These findings underscore the importance of careful material selection to ensure durable dental restorations.","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":"333-344"},"PeriodicalIF":2.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144209020","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

Academy of Operative Dentistry: Award of Excellence: Dr. Bruce A. Matis. 牙科外科学会：优秀奖：Bruce A. Matis博士。

IF 2.2 4区医学

Operative dentistry Pub Date : 2025-04-04 DOI: 10.2341/1559-2863-50-2-122

Timothy Carlson

引用次数: 0

Celebrating Excellence. 庆祝卓越。

IF 1.4 4区医学

Operative dentistry Pub Date : 2025-03-01 DOI: 10.2341/1559-2863-50-2-117

Kim Diefenderfer

引用次数: 0

Cover II. II .封面

IF 1.4 4区医学

Operative dentistry Pub Date : 2025-03-01 DOI: 10.2341/1559-2863-50.2.ii

引用次数: 0

Fifty Years of Teaching Operative Dentistry - My Reflections. 五十年的牙科手术教学——我的感想。

IF 1.4 4区医学

Operative dentistry Pub Date : 2025-03-01 DOI: 10.2341/1559-2863-50-2-119

Gerald Denehy

引用次数: 0

Effect of Cement Type on Marginal Microleakage of Zirconia Crowns with or without Cervical Margin Relocation: An In Vitro Study. 骨水泥类型对颈缘移位前后氧化锆冠边缘微渗漏的影响。

IF 2.2 4区医学

Operative dentistry Pub Date : 2025-03-01 DOI: 10.2341/24-096-L

R I Farah

{"title":"Effect of Cement Type on Marginal Microleakage of Zirconia Crowns with or without Cervical Margin Relocation: An In Vitro Study.","authors":"R I Farah","doi":"10.2341/24-096-L","DOIUrl":"10.2341/24-096-L","url":null,"abstract":"This study evaluated the microleakage in zirconia crowns cemented with bioactive vs resin cements at two margin locations: cementum/dentin deep margin and composite-elevated margins. Standardized mesial box cavities were prepared in 30 molar teeth, with proximal cavosurface margins placed 1 mm below the cemento-enamel junction (CEJ) and restored with resin composite. The teeth were prepared for zirconia crowns, with mesial margins on the composite and distal margins on tooth structure 1 mm below the CEJ. Following digitization and zirconia crown fabrication, the specimens were randomly allocated into five groups based on the type of cement used: one multistep adhesive resin, one self-adhesive resin, one bioactive hybrid ionic resin, and two bioceramic cements. Microleakage was evaluated by measuring the percentage of dye penetration depth at the interfaces, with data analyzed using two-way ANOVA. The results revealed a significant interaction between cement type and margin location, with elevated margins exhibiting less leakage than deep ones across all cement types (p≤0.001). However, the effect of margin location on microleakage varied depending on the cement type, with variations in microleakage scores at each margin location ranging from statistically nonsignificant (p>0.05) to statistically significant (p≤0.05). Adhesive resin and hybrid bioactive cements significantly outperformed others in reducing microleakage at both margin interfaces.","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":"194-203"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143190093","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

Combined Orthodontic, Orthognathic Surgical, and Prosthodontic Treatment for Severe Class III Malocclusion Using Digital Workflows. 使用数字工作流程的正畸、正颌外科和修复联合治疗严重III类错牙合。

IF 2.2 4区医学

Operative dentistry Pub Date : 2025-03-01 DOI: 10.2341/23-099-S

L Szegedi, N K Rózsa, B Nemes, G Lőrincz, P Kreuter, D Végh, I Róth, S Bogdán, P Hermann, Z Géczi

{"title":"Combined Orthodontic, Orthognathic Surgical, and Prosthodontic Treatment for Severe Class III Malocclusion Using Digital Workflows.","authors":"L Szegedi, N K Rózsa, B Nemes, G Lőrincz, P Kreuter, D Végh, I Róth, S Bogdán, P Hermann, Z Géczi","doi":"10.2341/23-099-S","DOIUrl":"10.2341/23-099-S","url":null,"abstract":"The patient underwent combined orthodonticorthognathic surgical treatment due to her skeletal Class III malocclusion. In the first phase, orthodontic decompensation was performed with maxillary and mandibular fixed appliances. The maxillary first premolars were extracted; the created space was closed by anterior retraction. The posterior anchorage was reinforced with interradicular temporary anchorage devices. In the second phase, a digital surgical treatment plan was made with intra- and extraoral simulation (including occlusion and profile). During the orthognathic surgery, a bilateral sagittal split osteotomy with mandibular setback was combined with maxillary movements, using 3D-printed surgical splints. In the third phase, the orthodontic treatment continued to finish and settle the occlusion. Spaces were created between the upper incisors for ceramic veneers to gain proper overjet and occlusion. The last phase was prosthetic and esthetic rehabilitation. During the planning, a 2Dand 3D-smile design was created and presented to the patient as a mock-up. After digital impression and design, four E-max veneers were milled and cemented using dual cement to finish the workflow. Retention splints were created to preserve the new status as a final step.","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":"50 2","pages":"123-131"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143803860","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

Effects of Experimental Nanohydroxyapatite Gel on Enamel Surface After Bleaching. 纳米羟基磷灰石凝胶对牙釉质漂白后表面的影响。

IF 2.2 4区医学

Operative dentistry Pub Date : 2025-03-01 DOI: 10.2341/24-008-L

A Tunc Dicle, E Eliguzeloglu Dalkılıc, E Akyol

{"title":"Effects of Experimental Nanohydroxyapatite Gel on Enamel Surface After Bleaching.","authors":"A Tunc Dicle, E Eliguzeloglu Dalkılıc, E Akyol","doi":"10.2341/24-008-L","DOIUrl":"10.2341/24-008-L","url":null,"abstract":"The purpose of this study was to investigate the effect of chitosan-added experimental nanohydroxyapatite (n-HA) gel on the physical and morphological changes of the enamel surface after the use of two different vital bleaching agents. Fifty-two intact, caries-free human maxillary incisors were embedded in acrylic resin. Chitosan-added n-HA powder was synthesized using a high-temperature oxidation method and then mixed with phosphate-buffered saline solution (PBS) to form a gel. The teeth were divided into four groups: Group B: Biowhiten in-office 40% n-HP (BioWhiten, Biodent Ltd, Istanbul, Turkey); Group O: Opalescence Boost 40% HP (Ultradent Products Inc., South Jordan, UT, USA); Group BN: Biowhiten in-office 40% n-HP+n-HA gel; Group ON: Opalescence Boost 40% HP+n-HA gel. Color change, surface microhardness, and surface roughness (Ra) measurements were taken before, immediately after, and one week after bleaching. Three specimens from each group were also subjected to scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS) analysis. The data were statistically analyzed using an analysis of variance (ANOVA) and Bonferroni post hoc test (p<0.05). After bleaching, all groups showed a noticeable change in color (p<0.05), but with no differences among the treatment groups (p>0.05). After bleaching, the highest Ra values were determined in Group O (p<0.05). Group ON showed a statistically lower Ra value than Group O (p<0.05). The lowest microhardness value after bleaching was observed in Group O (p<0.05), which also had the lowest calcium/phosphorus (Ca/P) value. After the experimental chitosan-added n-HA gel application, the Ca/P ratio increased. The use of experimental chitosan-added n-HA gel after bleaching improved the physical and morphological properties of the enamel surface without reducing the effectiveness of bleaching.","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":"50 2","pages":"218-228"},"PeriodicalIF":2.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143803863","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