Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry最新文献

{"title":"Issue Information - Editorial Board","authors":"","doi":"10.1111/jopr.70242","DOIUrl":"https://doi.org/10.1111/jopr.70242","url":null,"abstract":"","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"35 8","pages":"1169-1172"},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jopr.70242","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zirconia specimens printed by vat photopolymerization: Mechanical properties, fatigue properties, and fractography analysis","authors":"Zidi Zhai MSc,&nbsp;Chao Qian DDS, PhD,&nbsp;Ting Jiao DDS, PhD,&nbsp;Chun Xu DDS, PhD,&nbsp;Jian Sun DDS, PhD","doi":"10.1111/jopr.13942","DOIUrl":"10.1111/jopr.13942","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>The mechanical and fatigue properties of zirconia specimens printed by vat photopolymerization (VPP) were evaluated and compared with those of zirconia specimens milled by computer numerical control (CNC).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>Bar-shaped specimens were printed by stereolithography (SL) and digital light processing (DLP). CNC-milled specimens were used as control samples. The fracture toughness, hardness, and flexural strength properties of the zirconia specimens were evaluated via single edge V-notch beam tests, Vickers hardness tests, and 3-point bending tests. Dynamic fatigue tests were carried out in distilled water using a step-stress test. After static bending and dynamic step-stress testing, fractography analysis was performed. Statistical analysis was carried out to compare the fracture toughness, hardness, flexural strength, and fatigue cycle results of each group (<i>α</i> = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The fracture toughness values did not significantly differ among the groups (<i>p</i> &gt; 0.05). The flexural strength was 894.10 MPa for SL, 831.46 MPa for DLP, and 1140.39 MPa for CNC. The flexural strength of CNC was greater than that of SL and DLP (<i>p</i> &lt; 0.01). The mean fatigue cycles were 23498.07 for SL, 19858.60 for DLP, and 31566.80 for CNC. The mean fatigue failure strength was 643.13 MPa for SL, 530.63 MPa for DLP, and 903.75 MPa for CNC. The fatigue failure strength of CNC was greater than that of SL and DLP (<i>p</i> &lt; 0.05). Fractography analysis revealed material defects at the fracture origin for each group. A partially fused structure of the incompletely debonded resin could be observed in SL, and a porous region of incompletely sintered zirconia grains could be observed in CNC.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The fracture toughness and hardness of zirconia printed by VPP are comparable to those of zirconia milled by CNC. However, zirconia milled by CNC has superior static flexural strength and dynamic fatigue resistance. Further studies are needed to explore the clinical applications of VPP-printed zirconia.</p>\u0000 </section>\u0000 </div>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"35 8","pages":"1297-1303"},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142113942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical properties of 3D-printed resin denture teeth: An in vitro study","authors":"Rami S. Al-Fodeh BDS, MFDSRCSI, D.Ch.Dent (Prosth) TCD, FFDRCSI(Prosth),&nbsp;Ziad N. Al-Dwairi BDS, PhD, FFDRCS(Ire), FDSRCS(Edin), FDSRCPS(Glasg), FDSRCS (Eng), FFDTRCS (Edin), FCGDent,&nbsp;Mahmoud Almasri BDS, MDSc,&nbsp;Nadim Z. Baba DMD, MSD, FACP","doi":"10.1111/jopr.13939","DOIUrl":"10.1111/jopr.13939","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Purpose&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;The purpose of this study was to compare the wear, fracture strength, and mode of failure of various brands of 3D-printed resin denture teeth with prefabricated acrylic resin. Additionally, the study aimed to analyze the different modes of failure exhibited by these teeth.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Materials and Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;The study utilized 90 3D-printed and 30 prefabricated, 3D-printed resin teeth from three brands: L = Optiprint Lumina, A = ASIGA DentaTooth, P = Power resins, along with prefabricated acrylic teeth from M = Major Super Lux. Each of the 30 samples per main group was divided into two subgroups: The first subgroup samples (M1, A1, L1, P1) were subjected to thermal cycling and mechanical loading; M2, A2, L2, and P2 were not aged and tested directly. A scan of a prefabricated acrylic tooth was taken using an intraoral scanner, and then the STL file was printed using an Asiga 3Dprinter. The specimens underwent aging to simulate 5 years of clinical use with 10,000 thermal cycles and 1,200,000 dynamic load cycles on a chewing simulator. Surface roughness parameters (Rz, Ra, Rq) were measured using a 3D Optical Profilometer, fracture resistance was assessed using a universal testing machine, and SEM analysis was performed to observe failure modes. Statistical analysis using T-test, one-way analysis, and two-way analysis processed by the Statistical Package for Social Sciences (SPSS) software version 23.0 (SPSS: Inc., Chicago, IL, USA) was done with a level of significance set at &lt;0.05.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;The results showed that the difference in surface roughness parameters (Rz, Ra, Rq) before and after aging for Group M, Group A, Group L, and Group P was statistically significant (&lt;i&gt;p&lt;/i&gt; &lt; 0.05). Two-way ANOVA for wear resistance between aging and groups on dependent variable Rz (&lt;i&gt;p&lt;/i&gt; = 0.002), Ra (&lt;i&gt;p&lt;/i&gt; = 0.001), Rq (&lt;i&gt;p&lt;/i&gt; = 0.001) were significant. Multiple comparisons for surface roughness parameters showed Group A and Group L were lower than Group P and Group M (&lt;i&gt;p&lt;/i&gt; &lt; 0.05). For fracture strength, One-way ANOVA showed a significant difference between groups for fracture strength either without or after the aging procedure (&lt;i&gt;p&lt;/i&gt; &lt; 0.05). Multiple comparisons for fracture strength without aging showed no significant difference between Group M, Group A, and Group L (&lt;i&gt;p&lt;/i&gt; &gt; 0.05). After the aging procedure fracture strength for Group M was higher than Group A, Group L, and Group P (&lt;i&gt;p&lt;/i&gt; &lt; 0.05).&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Conclusion&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;3D-printed resin teeth showed a greater and comparable wear","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"35 8","pages":"1273-1280"},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142113939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vertical marginal gap and internal fit of virgilite-based lithium disilicate glass ceramic veneers with different preparation designs","authors":"Amr Rizk BDS, MSc, PhD,&nbsp;Ahmed Abdou BDS, MSc, PhD,&nbsp;Amira Mohammad Samy BDS, MSc, PhD,&nbsp;Nouran Mahmoud BDS, MSc, PhD,&nbsp;Sarah Omar BDS, MSc, PhD","doi":"10.1111/jopr.13937","DOIUrl":"10.1111/jopr.13937","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>To evaluate and compare internal fit and marginal adaptation of conventional lithium disilicate (LDS) glass ceramics and LDS containing virgilite computer-aided design and manufacturing (CAD-CAM) blocks before and after aging.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>Seventy-two epoxy replicated dies from two prepared maxillary right central incisors acrylic typodont were divided into two groups of different preparation designs (<i>n</i> = 36): Group I, incisal butt-joint, and Group P, incisal overlap. Each group was further subdivided into two equal groups according to ceramic material (<i>n</i> = 18): Group E, IPS e.max CAD, and Group T, Tessera advanced lithium disilicate (ALD) CAD-CAM blocks. The replica technique was used to assess the internal fit using a stereomicroscope at 45× magnification. Laminate veneers were cemented to their corresponding epoxy dies, then the vertical marginal gap was evaluated before and after thermal cycling. Repeated measures analysis of variance (ANOVA) were used for marginal fit data and 2-way ANOVA for internal fit measurements (<i>α</i> = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>For internal fit, there were no significant differences between tested groups. For vertical marginal gap results, two-way ANOVA showed that only aging had a significant effect on the vertical marginal gap (<i>p</i> &lt; 0.001), while different CAD-CAM materials and preparation designs did not affect the vertical marginal gap.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The vertical marginal gap and internal fits of IPS e.max CAD and CEREC Tessera CAD for both preparation designs were comparable. Aging significantly affected the vertical marginal gap of the laminate veneers of both materials and both preparation designs; however, all were within clinically acceptable ranges before and after aging.</p>\u0000 </section>\u0000 </div>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"35 8","pages":"1256-1264"},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142156454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of artificial intelligence–based software programs applied to the radiographic and photographic identification of dental implant systems","authors":"Sohil A. Kazim BDS, MDS, FRCDC, FACP,&nbsp;Charles J. Goodacre DDS, MSD","doi":"10.1111/jopr.70155","DOIUrl":"10.1111/jopr.70155","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>The purpose of this evaluation study was to assess the performance of ChatGPT-5, Google Gemini (v2.5), and Microsoft Copilot in identifying five demonstration dental implant systems and four implants from real clinical cases based on clinical and radiographic images.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>Clinical photographs of the demonstration implant platforms and corresponding radiographs of NobelActive (NobelActive; Nobel Biocare), NobelParallel Conical Connection (NobelParallel CC; Nobel Biocare), NobelReplace Conical Connection (NobelReplace CC; Nobel Biocare), Straumann Bone Level Conical (Straumann BLC; Institut Straumann), and Straumann BLX (Straumann BLX; Institut Straumann), were entered into ChatGPT-5, Google Gemini (v2.5), and Microsoft Copilot with one standardized prompt. In addition, four previously placed implants from real patient cases (NobelActive, NobelReplace CC, Straumann Bone Level Tapered [BLT], and Straumann BLX) were analyzed using the same software programs and standardized prompt. All inputs were conducted in a clean session. All responses from ChatGPT-5, Gemini, and Copilot software programs were compared for accuracy and descriptive completeness.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>ChatGPT-5 correctly identified two of the five demonstration implant systems, but did not definitively identify any of the four real clinical cases. Google Gemini failed to correctly identify any implant system in either the demonstration or clinical cases. Microsoft Copilot did not correctly identify the demonstration implants but correctly identified one of the four real clinical cases (Straumann BLX). Diagnostic overlap among tapered internal-connection systems was a common source of misclassification.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>None of the evaluated artificial intelligence (AI) software programs consistently identified dental implant systems across both demonstration and real clinical cases. Although ChatGPT-5 showed partial diagnostic capability in demonstration implants and Microsoft Copilot correctly identified one real clinical case, overall system-level identification remained unreliable.</p>\u0000 </section>\u0000 </div>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"35 8","pages":"1242-1248"},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jopr.70155","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147786786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of finishing and polishing techniques on the fit accuracy and dimensions of conventional and CAD-CAM removable partial denture frameworks","authors":"Majed S. Altoman BDS, MS, FACP,&nbsp;Pooya Soltanzadeh DDS, MS, FACP,&nbsp;Montry S. Suprono DDS, MSD, FACP,&nbsp;Thrya S. Gadah BDS, MSD, FRCDC,&nbsp;Mathew T. Kattadiyil BDS, MSD, MS, FACP","doi":"10.1111/jopr.13950","DOIUrl":"10.1111/jopr.13950","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>The purpose of this study was to compare the effects of finishing and polishing techniques on the fit accuracy, metal loss, and surface roughness of conventional versus CAD-CAM removable partial denture (RPD) frameworks.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>A 3D-printed maxillary Kennedy class III modification I model served as the master cast. Forty impressions (20 conventional and 20 digital) were divided into four groups: lost-wax technique (Group I: LWT), CAD-printed (Group II: CAD-RP), CAD-printed from a stone cast (Group III: CAD-RPS), and lost-wax technique from resin-printed models (Group IV: LWTR). Various finishing and polishing techniques were applied, followed by digital scanning for fit accuracy assessment using surface matching software. Metal thickness loss and surface roughness were evaluated pre- and post-finishing and polishing. The Kruskal-Wallis test followed by the Scheffe post-hoc test were conducted to evaluate the fit accuracy between groups (<i>α</i> = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Color mapping revealed significant differences (<i>p</i> &lt; 0.001) between conventionally casted RPD frameworks and 3D-printed groups post-finishing and polishing. The most significant gap was observed with the guide plates from printed RPD frameworks. The D-Lyte technique resulted in less metal loss compared to the conventional finishing and polishing technique (<i>p</i> &lt; 0.001).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Within the limitations of this study, conventionally processed RPD groups exhibited better overall fit accuracy post-finishing and polishing. Both conventional cast and 3D-printed RPD frameworks showed clinically acceptable fit accuracy. The D-Lyte technique presented less metal loss and smoother surfaces compared to other groups, suggesting it as a viable alternative.</p>\u0000 </section>\u0000 </div>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"35 8","pages":"1333-1340"},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142299355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Three-dimensional evaluation of soft tissue changes following placement of two different healing abutments with different emergence profile designs: A randomized controlled trial","authors":"Rania E. Ramadan BDS, MSc, PhD,&nbsp;Faten S. Mohamed BDS, MSc, PhD,&nbsp;Mervat E. Abd-ELLAH BDS, MSc, PhD","doi":"10.1111/jopr.70212","DOIUrl":"10.1111/jopr.70212","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>The purpose of this trial was to assess linear dimensional and volumetric changes of buccal peri-implant soft tissues of mandibular single first molar implants after 3 months of healing using a prefabricated scannable healing abutment (HA) with a convex emergence profile (EP) in comparison with a customized non-scannable HA with a concave EP.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>Twenty-four subjects were included in the trial. Single implants were placed in mandibular first molars. Two groups of participants were assigned at random to either a control group that received a custom HA with a concave EP (<i>n</i> = 12) or a test group that received a prefabricated scannable HA with a convex EP (<i>n</i> = 12) on the day of implant placement. Pre- and 3-month intraoral scans were made to measure linear dimensional and volumetric changes of buccal peri-implant soft tissues using a three-dimensional metrology software program. Statistical analysis was performed using Mann–Whitney <i>U</i> test and independent sample <i>t-</i>test for linear dimensional and volumetric changes, respectively (<i>α</i> = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>A statistically significant difference was found regarding the linear dimensional changes between test and control groups at 0 and 1 mm from soft tissue margin around the HA (<i>p</i> = 0.001 and 0.005, respectively), with slightly higher values for the control group. No statistically significant difference was shown between the tested groups at 2, 3, and 4 mm from the soft tissue margin (<i>p</i> = 0.419, 0.073, and 0.908, respectively). Moreover, there was not a statistically significant difference in the digital analysis of volumetric changes between the two groups (<i>p</i> = 0.062).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Scannable HAs with convex EP design showed comparable results to customized HAs with concave EP design regarding the buccal soft tissue volume in mandibular first molar implant sites. Although statistically significant differences were found, this was likely of very limited clinical significance.</p>\u0000 </section>\u0000 </div>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"35 8","pages":"1231-1241"},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148686477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Complete-arch implant rehabilitation and adjunctive orthognathic surgery of a patient with hypohidrotic ectodermal dysplasia utilizing a digital workflow: A clinical report","authors":"Luiz Gonzaga DDS, MS,&nbsp;Ghida Lawand BDS, MSc,&nbsp;Spencer Blumberg DMD, MD,&nbsp;Melvin Franklin Dolwick DMD, PhD,&nbsp;William Martin DMD, MS","doi":"10.1111/jopr.14060","DOIUrl":"10.1111/jopr.14060","url":null,"abstract":"<p>Hypohidrotic ectodermal dysplasia (HED) is a rare genetic disorder characterized by congenital anomalies in ectodermal tissues, with dental manifestations commonly including hypodontia or oligodontia. Addressing the significant aesthetic, functional, and psychosocial challenges associated with HED requires early surgical and prosthodontic intervention following skeletal maturation. This clinical report details a digital workflow for complete-arch implant rehabilitation of the maxilla and mandible, combined with orthognathic surgery, in an adolescent patient with HED. Integrating digital technologies enhanced treatment planning, surgical precision, and prosthetic outcomes, improving aesthetics, functionality, and overall patient quality of life.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"35 8","pages":"1173-1182"},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144054405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of Streptococcus mutans biofilms on the color stability and topographical features of three lithium disilicate ceramics","authors":"Abdulrahman A. Balhaddad BDS, MSD, PhD,&nbsp;Abdulkareem Muneer Al Otaibi BDS,&nbsp;Khalid Saud Alotaibi BDS,&nbsp;Afnan O. Al-Zain BDS, MSD, PhD,&nbsp;Eman H. Ismail DDS, Ms, PhD,&nbsp;Yousif A. Al-Dulaijan BDS, MDS, FRCD(C), PhD,&nbsp;Haidar Alalawi BDS, CAGS, DScD,&nbsp;Ahmad M. Al-Thobity BDS, MDS, FRCD(C)","doi":"10.1111/jopr.13944","DOIUrl":"10.1111/jopr.13944","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>Secondary caries around ceramic restorations is the most common reason for the replacement of fixed dental prostheses (FDPs). Therefore, it is important to examine the susceptibility of different ceramic materials to biofilm formation. This study aimed to evaluate biofilm development and associated roughness and color alterations in three lithium disilicate ceramics: Emax CAD (EC), Emax Press (EP), and LiSi Press (LP).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p><i>Streptococcus mutans</i> biofilms were grown on the three ceramics (<i>n</i> = 10 per group) for 7 days. Surface roughness values and color alteration were assessed before and after the biofilm using a non-contact profilometer and spectrophotometer, respectively. Biofilm growth was evaluated using colony-forming units (CFUs) and scanning electron microscope (SEM) images. The data were analyzed using one-way ANOVA and Tukey tests.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>There was a significant (<i>p ≤</i> 0.001) growth of <i>S. mutans</i> colonies on EC (6.75 ± 0.56) and EP (6.72 ± 0.54) specimens compared to LP, which showed no biofilm growth. The change in average surface roughness (∆<i>R_a</i>, nm) was significantly lower (<i>p</i> &lt; 0.001) in the EC specimens (0.029 ± 0.003) compared to the EP (0.055 ± 0.012) and LP (0.041 ± 0.010). When the changes in the <i>R_v</i> and <i>R_t</i> values were investigated, no significant difference was observed among the groups. Following the biofilm challenge, the change in color (∆<i>E</i>₀₀) was significantly lower (<i>p</i> = 0.005) in the LP group (1.68 ± 1.45) compared to the EC group (3.89 ± 1.50) and no significant difference was observed between the EP group (2.74 ± 1.01) and the other two ceramics (<i>p ≥</i> 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>LP ceramics exhibited superior resistance to <i>S. mutans</i> biofilm formation and associated changes in surface roughness and color compared to the Emax CAD and Emax Press ceramics. These findings suggest that the LiSi Press material may be more favorable to mitigate the risk of secondary caries.</p>\u0000 </section>\u0000 </div>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"35 8","pages":"1304-1311"},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142113941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Directional PICO framing and unsupported conclusions in prosthodontic systematic reviews: A methodological analysis","authors":"Geoffrey A. Thompson DDS, MS,&nbsp;Mohamed Elshewy BDS, MS,&nbsp;Ahmed Zaher DDS, MS","doi":"10.1111/jopr.70111","DOIUrl":"10.1111/jopr.70111","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Purpose&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Systematic reviews are foundational to evidence-based prosthodontics, yet their conclusions may be shaped by methodological choices made during question formulation, evidence selection, analysis, and interpretation. This methodological analysis examines how directional framing of review questions, reliance on surrogate outcomes, and interpretive approaches may influence conclusions in a limited sample of eight prosthodontic systematic reviews, particularly when evidence is sparse, heterogeneous, or indirect.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Eight recent systematic reviews in prosthodontics, restorative dentistry, and implant therapy were purposively selected for methodological analysis. Each review included an explicit PICO [Patient/Problem (P), Intervention (I), Comparison (C), and Outcome (O)] or focused clinical question and relied on limited or heterogeneous evidence while offering practice-oriented interpretations. Reviews were assessed for the neutrality of question framing, handling of surrogate and clinical outcomes, management of heterogeneity, and alignment between evidence and conclusions. Directional PICOs were defined as those that framed alternatives asymmetrically or suggested expected benefit or acceptability for one option. A Cochrane review was used as a benchmark for interpretive proportionality and neutrality.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;All eight prosthodontic reviews exhibited patterns in which interpretation appeared influenced by question framing, evidence type, or heterogeneity. Directional PICO framing frequently aligned with similarly directional conclusions. Reviews relying on in vitro or surrogate endpoints often extrapolated laboratory findings to clinical recommendations. Other observed patterns included limited distinction between surrogate and clinical outcomes, difficulty combining findings from methodologically diverse studies, and conclusions that went beyond what the available evidence could reliably support. The Cochrane review demonstrated clear separation between evidence and inference and maintained interpretive restraint in light of evidentiary limitations.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Conclusions&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Within this set of eight prosthodontic systematic reviews, directional framing, surrogate outcomes, and heterogeneous or indirect evidence appeared to influence how conclusions were formulated. Neutral framing, clear differentiation of outcomes, transparent heterogeneity management, and alignment between conclusions and evidence certainty may strengthen future prosthodontic evidence syntheses.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"35 8","pages":"1203-1210"},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146195842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}