Operative dentistry最新文献

{"title":"Esthetic Outcome of a Universal Shade Resin Composite Placed Before Nonvital Tooth Bleaching.","authors":"T Ruaydee, P Saikaew, P Panpisut, C Kawamoto, A Tomokiyo, H Sano","doi":"10.2341/24-099-T","DOIUrl":"https://doi.org/10.2341/24-099-T","url":null,"abstract":"<p><strong>Objective: </strong>In this case report, we describe the use of a universal shade resin composite to restore a discolored tooth before nonvital tooth bleaching. The intent of this procedure is to maintain an acceptable color match, eliminating the need for subsequent replacement of the restoration after bleaching.</p><p><strong>Methods: </strong>A substantial defective Class IV resin composite was removed from a discolored, endodontically treated tooth #8. The existing gutta percha was sealed with glass ionomer, and 35% hydrogen peroxide gel was applied in the access chamber. The access cavity was temporarily sealed with a flowable resin composite and the entire tooth was restored with a group-shade universal resin composite. After a two-week bleaching period, the bleaching gel and temporary filling in the access cavity were replaced with the same universal shade resin composite, without necessitating the complete replacement of the entire restoration.</p><p><strong>Results: </strong>A favorable outcome was noted during a one-year follow-up period, with the bleached tooth maintaining a harmonious color and the resin composite restoration exhibiting a stable and satisfactory condition.</p><p><strong>Conclusion: </strong>The clinical use of a universal shade resin composite before bleaching exhibited significant promise in facilitating an effective color match in a discolored tooth after bleaching. This method may substantially diminish the need for restoration replacement due to challenges associated with color discrepancies.</p>","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248961","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":"The Use of Intraoral Camera, Quantitative Light Fluorescence, and Visual Examinations for the Detection and Assessment of Enamel Fluorosis.","authors":"N Abogazalah, L Al Dehailan, A-E Soto-Rojas, M Ando, S Martignon, H Eggertsson, D Shone, E-A Martinez-Mier","doi":"10.2341/24-137-C","DOIUrl":"https://doi.org/10.2341/24-137-C","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the in vivo and in vitro performance of an intraoral camera (IC), visual examination using the Thylstrup and Fejerskov Index (TFI), and quantitative light-induced fluorescence (QLF) to detect and quantify enamel fluorosis (EF).</p><p><strong>Methods and materials: </strong>Calibrated examiners performed IC-qualitative (ICQual), TFI, IC-quantitative (ICQuant), and QLF (Area, Fluorescence loss [ΔF], and ΔQ: Area×ΔF) on 150 extracted teeth in vitro and 150 children in vivo. Polarized light microscopy (PLM) was the gold standard for the in vitro phase. Cross tabulation, agreement, correlation, comparison of means from quantitative measures, sensitivity, and specificity were calculated for TFI, QLF, ICQual, and ICQuant. For the in vivo phase, TFI scores were cross tabulated with ICQuant and ICQual, and Kendall's Tau was used to measure correlation.</p><p><strong>Results: </strong>Agreements of TFI and ICQual with PLM were 53.77% and 47.17%, respectively. Correlation coefficients for QLF (area, ΔF, ΔQ) and ICQuant with PLM scores were 0.47, 0.56, 0.51, 0.46, respectively. Sensitivity/specificity for TFI, ICQual, ICQuant, and ΔQ were 0.86/0.58, 0.86/0.62, 0.86/0.58, and 1.00/0.13, respectively. For the in vivo phase, correlations of ICQual and ICQuant with TFI were 0.55 and 0.52, respectively. Quantitative measurements of ICQuant by TFI scores showed consistent separation in means, while those for QLF were neither as clear nor as consistent.</p><p><strong>Conclusion: </strong>All methods were able to detect and quantify enamel fluorosis. However, there were consistent and significant differences among them.</p>","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248962","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":"At-home vs In-office Bleaching: An Updated Systematic Review and Meta-analysis.","authors":"J L de Geus, Acr Martins, A Reis, M Rezende","doi":"10.2341/24-078-LIT","DOIUrl":"https://doi.org/10.2341/24-078-LIT","url":null,"abstract":"<p><strong>Objective: </strong>To conduct a systematic review and meta-analysis to compare the efficacy, risk, and intensity of tooth sensitivity of at-home and in-office bleaching. This is an update of a systematic review first published in 2016, adding new evidence. Methods and Materials: A comprehensive search was performed in seven databases, including MEDLINE, EMBASE, and Cochrane Library. Additionally, other sources were screened manually for any additional trials, and the reference lists and citation lists of included trials and relevant reviews were manually searched. We included randomized clinical trials that compared the risk intensity of tooth sensitivity or bleaching efficacy of in-office and at-home treatments in adult patients. After data extraction and risk of bias assessment, mean differences or relative risks and the corresponding 95% confidence intervals were calculated and assessed with the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach.</p><p><strong>Results: </strong>A total of 910 articles were identified via databases and registers. After title and abstract screening, 11 studies remained. In addition, another 11 records were identified through websites, organizations, and citation searches. Including the previous studies from the earlier systematic review, 26 studies remained for qualitative analyses and 23 for meta-analysis. In 2024, six studies were added, totaling 32 studies included for qualitative analysis. The intensity of tooth sensitivity was significantly lower for at-home bleaching (standardized mean difference [SMD] -0.78; 95% confidence interval [CI] -1.53 to -0.03; p=0.04). There was no significant difference in the risk of tooth sensitivity (relative risk [RR] 0.82; 95% CI 0.61 to 1.10; p=0.19) or bleaching efficacy in ΔSGU (SMD 0.04; 95% CI -0.17 to 0.25; p=0.68). The color change in ΔE was significantly higher for at-home bleaching (SMD 0.49; 95% CI 0.14 to 0.84; p=0.006).</p><p><strong>Conclusion: </strong>Although there was a difference in the intensity of tooth sensitivity and color change in ΔE favoring at-home bleaching, the quality of the evidence was considered low. Neither the risk of tooth sensitivity nor the color change in shade guide units (ΔSGU) was influenced by the bleaching technique.</p>","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248960","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":"Effects of Catalyst Bioproducts on In-Office Whitening: A Randomized, Split-mouth Clinical Analysis.","authors":"L M Bueno Esteves, C A de Souza Costa, R A de Oliveira Ribeiro, K M Seicento Aidar, A de Oliveiro Santos, A Catalan, P H Dos Santos, Alf Briso","doi":"10.2341/24-090-C","DOIUrl":"https://doi.org/10.2341/24-090-C","url":null,"abstract":"<p><strong>Objectives: </strong>To compare conventional hydrogen peroxide (H2O2) whitening therapy (CT) applied for 45 minutes with a test therapy (TT) containing H2O2 whitening gel and catalyst bioproducts applied for 15 minutes.</p><p><strong>Methods: </strong>Thirty patients and their hemiarches were randomly divided into two groups: CT: application of 35% H2O2 three times for 15 minutes; test therapy (TT): based on the prior application of a polycaprolactone scaffold and the addition of 10 mg of peroxidase to the 35% whitening gel (3 drops of thickener, 9 drops of peroxide and 10 mg of peroxidase) for an exposure time of 15 minutes. The two treatments were carried out in three whitening sessions, 7 days apart. The chromatic change (ΔE00) and the bleaching index (ΔWID) were analyzed by spectrophotometry. Spontaneous sensitivity was assessed through a questionnaire, and thermal sensitivity was provoked through thermal stimuli after the three sessions and 14 days later. Esthetic self-perception was also measured using the Orofacial Esthetics Scale before and after each session.</p><p><strong>Results: </strong>After the first session, CT exceeded TT in ΔE00 and ΔWID, whereas they were equal at the other time points. Greater intensity and occurrence of spontaneous sensitivity occurred in the first and second sessions with CT. The CT group experienced thermal sensitivity at higher temperatures than the TT group at all times analyzed. Esthetic self-perception was higher (66.6%) in the TT group.</p><p><strong>Conclusion: </strong>The test therapy can achieve the same whitening effect with less total exposure time and less tooth sensitivity than the conventional technique.</p>","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144209071","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":"Dental Adhesive Protection Against Development of Noncarious Cervical Lesions.","authors":"G C Denucci, L C Lima, G J Ekert, F Silva, T Scaramucci, S Sochacki, A T Hara","doi":"10.2341/24-177-L","DOIUrl":"https://doi.org/10.2341/24-177-L","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to verify whether dental adhesives prevent noncarious cervical lesion (NCCL) development in an in vitro simulation model based on abrasive/erosive challenges.</p><p><strong>Methods and materials: </strong>Extracted human premolars were randomly assigned to one of three treatments (n=16): 1. reference adhesive (Clearfil SE, Kuraray Co., Ltd., Chiyoda City, Tokyo, Japan); 2. experimental adhesive (10 wt% [percentage by weight] beta-tricalcium phosphate nanoparticles); 3. negative control (no treatment). After treatment, specimens were submitted to 11 episodes of 18 hours of acid exposure (1% citric acid solution-0.052 molar (M), pH ~2.5) interspersed by toothbrushing abrasion. Three-dimensional images of teeth were captured at baseline and after 5000, 10,000, 15,000, 35,000, and 55,000 toothbrushing strokes using an intraoral scanner. Tooth wear (mm3) was calculated after each toothbrushing period by scan superimposition. Lesion angle was measured, and shape classified. Data were analyzed using analysis of variance (ANOVA) and Fisher Protected Least Significant Difference (PLSD) tests (α=0.05).</p><p><strong>Results: </strong>Tooth wear increased with toothbrushing strokes overall (p<0.001) and within each treatment (p<0.05) except between 10,000 and 15,000 strokes (p=0.24). Reference had less tooth wear than control overall (mean difference [95% CI]: 0.68 [0.20,1.15], p=0.008) and for all toothbrushing periods (p<0.05) except at 55,000 strokes (0.54 [-0.38,1.46], p=0.25). Reference had less tooth wear than experimental overall (0.54 [0.01,1.07], p=0.046) and for 35,000 strokes (0.80 [0.13,1.46], p=0.019). Experimental had less tooth wear than negative control at 5000 and 10,000 strokes (p<0.05). Treatments had no effect on lesion angle (p=0.52). At 55,000 strokes, reference had more flat-shaped lesions than experimental (p<0.001) and negative control (p<0.001), but experimental and negative control were not different from each other (p=1.00) having more striated lesions.</p><p><strong>Conclusion: </strong>Adhesives showed some degree of protection against NCCL development at early stages; however, reference had longer-lasting protection than experimental.</p>","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144209069","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 Patient Age Impact In-Office Tooth Bleaching Outcomes? A Parallel Clinical Trial.","authors":"J L Martins, I S Araújo, J F Rabelo, C J Soares, A L Faria-E-Silva, A D Loguercio, Pcfs Filho, H L Carlo, G R da Silva","doi":"10.2341/24-061-C","DOIUrl":"https://doi.org/10.2341/24-061-C","url":null,"abstract":"<p><strong>Objectives: </strong>To assess the influence of patient age on tooth sensitivity, bleaching effectiveness, and the self-perception and psychosocial impact of dental esthetics following in-office tooth bleaching with 35% hydrogen peroxide.</p><p><strong>Methods: </strong>This parallel study categorized 56 subjects by age into early adulthood (18-25 years) and middle-aged (40-65 years) groups. The bleaching agent was applied in a single 45-minute session, spanning two bleaching sessions at a 1-week interval. Bleaching effectiveness assessment used upper incisors and canines. A shade guide (VITA Bleachedguide 3D-MASTER) and a portable spectrophotometer evaluated color changes. A visual analog scale and verbal rating scale recorded tooth sensitivity during and up to 48 hours after the bleaching procedure. The Psychosocial Impact of Dental Aesthetics Questionnaire measured the self-perception and psychosocial impact of the bleaching protocol. Student t-test, Fisher exact test, Mann-Whitney, multivariate analysis of variance, chi-square, two-way repeated measures analysis of variance, and the Wilcoxon test (α=0.05) verified the data.</p><p><strong>Results: </strong>Early adulthood subjects demonstrated a significant increase (17%) in the risk of tooth sensitivity (p=0.038), and the highest pain levels occurred 1 hour after the bleaching session (p<0.01). Nonetheless, early adulthood subjects showed improved bleaching effects 30 days after the procedure when compared to the middle-aged subjects, even though the overall perception of the psychosocial impact of dental esthetics was more evident in middle-aged subjects.</p><p><strong>Conclusions: </strong>Patient age influenced in-office bleaching outcomes. Both age groups reported esthetic satisfaction, but early adulthood subjects (18-25 years) experienced a more substantial whitening effect, greater dentin sensitivity, and higher psychological impact. Conversely, middle-aged subjects (40-65 years) had a better overall perception of the psychosocial impact of dental esthetics.</p>","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144209070","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":"Shear Bond Strength of Liner Materials to Caries-Free and Caries-Affected Dentin.","authors":"Z K Greene, N R Smith, T Gomes, N C Lawson","doi":"10.2341/24-112-L","DOIUrl":"https://doi.org/10.2341/24-112-L","url":null,"abstract":"<p><strong>Background: </strong>Dental liners are used on caries-free dentin to attenuate postoperative sensitivity and caries-affected dentin to promote remineralization and for antibacterial effects. The shear bond strength of liners to caries-affected and caries-free dentin is a significant clinical property in the restoration of teeth with large caries lesions. Objective: The aim of this in vitro study was to compare the shear bond strengths (SBS) of different liners to caries-free and caries-affected dentin.</p><p><strong>Methods and materials: </strong>SBS specimens were prepared according to ISO 29022:2013(E) (n=10/group). Caries-free dentin specimens were ground to superficial dentin. For caries-affected dentin, grinding to proximity of carious dentin was performed, remaining caries-infected dentin was removed with a polymer bur, and sanding to 320 grit was conducted to achieve a flat surface. 150-micron thick tape was centered over caries-free or caries-affected dentin, and five different liners (new RMGI-based calcium silicate liner [RMGI/CS], Biodentine, Lime-Lite Enhanced, TheraCal LC, Vitrebond Plus) were applied to dentin and leveled with the tape. Specimens were treated with adhesive, cured, and bonded with resin composite using the Ultradent fixture. Specimens were stored in 37°C water for 24 ± 2 hours and debonded at 1 mm/min. SBS was analyzed by two-way analysis of variance (ANOVA) and the Tukey post hoc test.</p><p><strong>Results: </strong>There was a significant difference in SBS among materials for both caries-affected and caries-free dentin (p<0.01). Tukey post hoc analysis grouped materials into significantly different groups for caries-free dentin (Lime-Lite Enhanced, Biodentine < TheraCal LC < Vitrebond Plus, RMGI/CS) and caries-affected dentin (Lime-Lite Enhanced, Biodentine, TheraCal LC < Vitrebond Plus, RMGI/CS). There was no difference in SBS to caries-free and caries-affected dentin for Lime-Lite Enhanced (p=0.359), Biodentine (p=0.522), Vitrebond Plus (p=0.406), or RMGI/CS (p=0.165). SBS was significantly greater to caries-free dentin with TheraCal LC (p<0.01).</p><p><strong>Conclusions: </strong>RMGI/CS and Vitrebond Plus produced higher SBS to caries-free and caries-affected dentin than the three other materials. There was a higher bond to caries-free dentin than caries-affected dentin for TheraCal LC, but not for any of the other liners tested. Clinicians should balance biologic advantages of liner materials with a decrease in bond strength.</p>","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144209019","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":"Evaluation of Bond Strengths of Conventional and Self-Adhesive Cements in the Cementation of Fiberglass Posts: A Systematic Review and Meta-Analysis.","authors":"M E Heráclio, A J Nascimento, C G Souza E Silva, C P Assis, R Braz, T Correia","doi":"10.2341/23-073-LIT","DOIUrl":"https://doi.org/10.2341/23-073-LIT","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the bond strength of self-adhesive (no need for bonding procedures) and conventional (with total-etch or self-etch primers) cementation strategies and the qualitative variables that interfere with the adhesion of fiberglass posts through a systematic review and meta-analysis of in vitro studies.</p><p><strong>Methods: </strong>This systematic review and meta-analysis was performed according to the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) and registered under the International Prospective Register of Systematic Reviews (PROSPERO). The research question was \"What resin cement provides better bond strength between the fiberglass posts and the root dentin: conventional or self-adhesive?\" The PubMed/MEDLINE, Web of Science, Scopus, and Cochrane databases were searched by two independent researchers.</p><p><strong>Results: </strong>There were statistically significant differences between self-adhesive and conventional resin cements (p<0.00001), favoring conventional cements.</p><p><strong>Conclusion: </strong>Conventional cements presented the best results regarding the bond strength of the fiberglass post cementation. However, variations in methodology and the risk of bias in analyzed studies may have decreased the reliability of the present study. More studies on this subject using a leveled methodology are recommended.</p>","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144209072","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":"Mapping Funding Assistance for Bulk-fill Resin Composites: A Bibliometric Analysis of Published Studies Between 2014 and 2023.","authors":"S B Miranda, Majr Montes, G A Borges, M R Santi, Mab Silva, Rbe Lins","doi":"10.2341/24-020-LIT","DOIUrl":"https://doi.org/10.2341/24-020-LIT","url":null,"abstract":"<p><strong>Objective: </strong>The aim of this bibliometric analysis was to investigate the prevalence of bibliometric parameters related to clinical trials with bulk-fill resin composites according to financial assistance over time.</p><p><strong>Methods: </strong>Five electronic databases were accessed (PubMed/MEDLINE, Embase, The Cochrane Library, Virtual Health Library, and Scopus) and seven bibliometric parameters related to geographic origin, year, impact factor, and publication details related to bulk-fill resin composite restorations and their clinical performance were considered. The prevalence ratio was applied using Poisson multiple regression analysis (α=0.05) to assess the association between funding and associated bibliometric parameters.</p><p><strong>Results: </strong>In total, 59 clinical trials that analyzed the clinical performance of restorations with bulk-fill resin composites were published between 2014 and 2023 and were evaluated bibliometrically; 40.7% (n=24) of the studies reported financial assistance. Financing was associated with bibliometric parameters related to the consistency of the materials, specifically with studies involving sculptable and flowable composites funded more frequently (p<0.001) than studies evaluating only sculptable consistency. Studies that analyzed class I and II cavities showed greater financial assistance (p=0.028) compared to class I cavities, and financing increased as the journal's impact factor increased (p=0.013).</p><p><strong>Conclusions: </strong>Financial assistance of clinical trials evaluating bulk-fill resin composite restorations was associated with material consistency, tooth cavity design, and journal impact factor bibliometric parameters.</p>","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144209073","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":"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":"https://doi.org/10.2341/24-116-S","url":null,"abstract":"<p><strong>Objective: </strong>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.</p><p><strong>Methods: </strong>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.</p><p><strong>Results: </strong>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.</p><p><strong>Conclusions: </strong>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.</p>","PeriodicalId":19502,"journal":{"name":"Operative dentistry","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-06-03","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}