Clinical and Experimental Dental Research最新文献

{"title":"Marginal and Internal Adaptation of Implant-Supported Three-Unit Metal Frameworks Fabricated by the Conventional, Semi-Digital, and Fully Digital Techniques Before and After Porcelain Application","authors":"Mansour Karimi,&nbsp;Hamid Neshandar Asli,&nbsp;Yeganeh Hamrah,&nbsp;Mohammad Ebrahim Ghaffari,&nbsp;Mehran Falahchai","doi":"10.1002/cre2.70173","DOIUrl":"https://doi.org/10.1002/cre2.70173","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>Only a small number of studies conducted on implant-supported fixed multi-unit restorations have evaluated the semi-digital fabrication techniques. This study aimed to assess the marginal and internal adaptation of implant-supported three-unit metal frameworks fabricated by the conventional, semi-digital, and fully digital techniques before and after porcelain application.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Material and Methods</h3>\u0000 \u0000 <p>In this in vitro study, 120 three-unit metal frameworks were fabricated by five different techniques (<i>n</i> = 20): fabrication of metal frameworks from hard metal by the milling technique, direct 3D-printing of metal, milling of resin pattern and subsequent casting, 3D-printing of resin pattern and subsequent casting, and conventional waxing and subsequent casting. The marginal and internal adaptation of the frameworks was evaluated before and after porcelain application by using the silicone replica technique. Data were analyzed using ANOVA followed by pairwise comparisons with the Games-Howell and paired samples tests (α = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Before porcelain application, resin pattern milling, and subsequent casting resulted in the smallest marginal gap, while hard metal milling yielded the largest marginal gap. The fully digital techniques yielded the largest cuspal and fossa gaps, while the conventional method yielded the largest axial gap. After porcelain application, metal 3D-printing and conventional casting resulted in comparable (<i>p</i> = 0.109) marginal gaps, smaller than hard metal milling (<i>p</i> &lt; 0.001). The conventional casting method yielded the smallest cuspal and fossa gaps (<i>p</i> &lt; 0.001). Porcelain application significantly increased the gap size at all measurement points (<i>p</i> &lt; 0.001).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The fabrication technique significantly affected the marginal and internal adaptation of implant-supported three-unit metal frameworks both before and after porcelain application.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70173","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144582386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oral Health Status of the Elderly Population in Iran","authors":"Shervan Shoaee,&nbsp;Mohammad-Hossein Heydari,&nbsp;Kiarash Parchami,&nbsp;Leili Alizadeh,&nbsp;Soheila Darmiani,&nbsp;Shima Bijari,&nbsp;Parvin Parvaie,&nbsp;Farshad Sharifi,&nbsp;Ali Sharifi,&nbsp;Mohammad Reza Khami,&nbsp;Shayan Sobhaninejad","doi":"10.1002/cre2.70170","DOIUrl":"https://doi.org/10.1002/cre2.70170","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>To evaluate the oral, periodontal, and dental health of the elderly population of Iran.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Material and Methods</h3>\u0000 \u0000 <p>This was a cross-sectional study as a part of the second wave of Birjand Longitudinal Aging Study (BLAS), which is a community-based prospective cohort study. The comprehensive geriatric oral health assessment tool was used for data collection. Data was collected through clinical examinations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Among the 1017 participants, the mean DMFT was 27.04. 67% (<i>n</i> = 681) were periodontally healthy, while mild to moderate periodontitis was diagnosed in 33% (<i>n</i> = 336) and severe periodontitis in 2.4% (<i>n</i> = 24). Xerostomia was diagnosed in 30% (305 individuals). 56.10% (<i>n</i> = 570) had removable dentures, among which 30.21% (<i>n</i> = 172) had poor retention, and 36.26% (<i>n</i> = 207) had poor stability. Red/white and exophytic lesions were diagnosed in 18.36% (<i>n</i> = 187) and 11.35% (<i>n</i> = 115), respectively. Tooth loss was prevalent, with 12.19% (<i>n</i> = 124) having mild tooth loss, 20.35% (<i>n</i> = 207) mild to moderate tooth loss, and 67.45% (<i>n</i> = 686) experiencing severe tooth loss.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Our study revealed significant oral health challenges among the elderly population. High DMFT and the prevalence of xerostomia, periodontitis, tooth loss and poorly fitted dentures underscore the need for targeted dental care interventions. Comprehensive strategies, including raising awareness and improving access to oral healthcare, are essential to enhance the quality of life and overall health of the elderly population.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70170","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Glossary of Computer-Assisted Implant Surgery and Related Terms. First Edition","authors":"Adrià Jorba-Garcia,&nbsp;Alessandro Pozzi,&nbsp;Zhuofan Chen,&nbsp;James Chow,&nbsp;Romain Doliveux,&nbsp;Yiu Yan Leung,&nbsp;Katsuhiro Maruo,&nbsp;Atiphan Pimkhaokham,&nbsp;Sofya Sadilina,&nbsp;Adam Siu,&nbsp;Kay Vietor,&nbsp;Feng Wang,&nbsp;Yiqun Wu,&nbsp;Man Yi,&nbsp;Bilal Al-Nawas,&nbsp;Nikos Mattheos,&nbsp;ITI Network on CAIS","doi":"10.1002/cre2.70148","DOIUrl":"https://doi.org/10.1002/cre2.70148","url":null,"abstract":"<p>The rapid development of computer-assisted implant surgery (CAIS) and the respective research and clinical applications have necessitated a standardization of the terminology related not only to different devices, but also the different steps involved, surgical and presurgical procedures. The present glossary was introduced at the 1st International Team for Implantology Symposium on Computer-assisted Implant Surgery, based on the collective work of clinicians and researchers with deep understanding and experience in these technologies. The glossary was further refined and revised through the structured input of a large group of global experts within clinical application, research, and education of CAIS. The glossary includes 98 terms organized in 5 domains, aiming to clarify ambiguity and propose some standard nomenclature in the service of clinical practice, research but also development of new devices, protocols, and approaches.</p>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70148","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144573577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Endodontic Consequences of Early Stage of Medication-Related Osteonecrosis of the Jaw: A Case Report","authors":"Vanessa Baaroun,&nbsp;Samantha Elbhar,&nbsp;Carole Rémond,&nbsp;Ines Guessoum,&nbsp;Juliette Rochefort,&nbsp;Geraldine Lescaille,&nbsp;Yves Boucher,&nbsp;Marjorie Zanini","doi":"10.1002/cre2.70168","DOIUrl":"https://doi.org/10.1002/cre2.70168","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>Osteonecrosis of the jaws (MRONJ) is a frequent side effect of antiresorptive (AR) drugs used in oncology. MRONJ may have endodontic consequences, as reported in this clinical case.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Material and Methods</h3>\u0000 \u0000 <p>A 64-year-old woman being treated with antiresorptive (AR) drugs targeting bone metastasis of a primitive breast cancer consulted at the dental service of Pitié-Salpêtrière Hospital. She first experienced symptomatic apical periodontitis followed by symptomatic irreversible pulpitis, which were initially explained as resulting from occlusal trauma. Despite endodontic treatment, exacerbation of the symptomatology was noted. MRONJ was suspected, and the affected tooth was extracted.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The presence of necrotic bone during the surgery confirmed the diagnosis. Surgical treatment led to complete healing and total disappearance of clinical and radiological signs at 4 months.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>MRONJ can induce alterations in adjacent tooth vascularization and secondary pulpal disease. Early diagnosis is difficult because early-stage MRONJ occurs without clear radiographic signs.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70168","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144493031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Thermodynamic Cyclic Loading on Screw Loosening of Tightened Versus New Abutment Screw in Bone Level and Tissue Level Implants in DIO Implant Company (In-Vitro Study)","authors":"Amirhossein Fathi,&nbsp;Sina Borhani,&nbsp;Sepideh Salehi,&nbsp;Ramin Mosharraf,&nbsp;Ramin Atash","doi":"10.1002/cre2.70162","DOIUrl":"https://doi.org/10.1002/cre2.70162","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>The loosening of abutment screws is a common mechanical complication in dental implants, potentially leading to treatment failure. It is generally believed that dynamic forces may accelerate and facilitate screw loosening. Two approaches exist to address this issue: replacing the screw or re-tightening the existing one. However, there is no consensus on the efficacy of either method in preventing re-loosening.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Material and Methods</h3>\u0000 \u0000 <p>In this laboratory study, 20 implant-abutment sets with a diameter of 4.5 mm were randomly placed in resin blocks simulating bone tissue. The samples were tightened with a torque of 30 N cm and subjected to 10,000 dynamic cycles in a thermocycler device at temperatures ranging from 5°C to 55°C because it is the usual temperature of the mouth while drinking or eating cold and hot things. After dynamic cycling, the torque required to unscrew the abutment screws was measured using a digital torque meter, and the torque reduction in both groups was calculated.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The results showed a significant reduction in the torque of abutment screws in both implant types after dynamic loading. Additionally, tissue-level implants experienced greater loosening than Bone-level implants, requiring less force to unscrew the abutment in the Tissue-level group. New screws showed less torque reduction compared to previously tightened screws. Opening torque scores in the new bone-level implants after applying the primary thermodynamic cycle (26.7 N cm) were more than in the new tissue-level implants (24.7 N cm). The torque reduction percentage values of the implant after the primary thermodynamic cycle were significantly higher in the tissue-level (17.67 N cm) group than in the bone-level (11 N cm) group.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Overall, dynamic loading can cause loosening of abutment screws in dental implants, with Tissue level implants being more susceptible. It is recommended to periodically replace screws with new ones to prevent torque reduction and related complications.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70162","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144493032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Facial Proportions, Landmarks Relationships With Facial and Dental Midlines, and Smile Framework","authors":"Zahra Bagheri,&nbsp;Vahid Mollabashi,&nbsp;Mohammad Mahdi Maleki,&nbsp;Behnaz Alafchi","doi":"10.1002/cre2.70164","DOIUrl":"https://doi.org/10.1002/cre2.70164","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>Facial features play a key role in determining human attractiveness. Facial beauty is characterized by harmonious proportions and symmetry, essential for successful aesthetic treatments in oral rehabilitation. This study examines relationships between oral and facial midlines and key anatomical landmarks, as well as evaluates the smile framework and dental/facial proportions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>A total of 637 males and females with an average age of 22.13 years (ranging from 18 to 40) were examined. Each individual had three digital images taken: a full-face photo at rest, a forced smile photo, and an intraoral photo. For each patient, three levels of aesthetic analysis, from macro to micro aesthetics, were conducted. Initially, transverse and vertical facial proportions and their relationships with the golden ratio were assessed. Next, the relationships between predetermined important facial landmarks and the oral and facial midlines were evaluated, and finally, the patient's smile framework was analyzed. Data analysis was performed via IBM SPSS Statistics (v24.0) and appropriate statistical tests.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The studied population had a consonant smile arc, upward upper lip curvature, medium smile line with exposure up to the first molar, and square-shaped teeth. Order of landmarks relative to facial midline from left to right includes the following: nasion, nose tip, philtrum, mouth midline, and dental midline. Furthermore, five out of seven vertical facial proportions and all transverse facial proportions closely align with the divine ratio (1.618), with significant gender-specific differences.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Integration of these aesthetic standards are necessary to ensure satisfactory and predictable outcomes in treatments and can be used at macroesthetic, miniesthetic, and microesthetic levels by maxillofacial surgeons, prosthodontists, orthodontists, and restorative specialists. According to impact of race, sex, and age on these factors, conducting similar studies in different populations is recommended to achieve more precise and aesthetically pleasing treatments tailored to each community.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70164","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144493033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Influence of Deep Margin Elevation and Immediate Dentin Sealing on the Fracture Strength of Premolars Restored With Indirect Inlays: An In Vitro Study","authors":"Lulwa E. Al-Turki,&nbsp;Osamah A. Alsulimani,&nbsp;Khadijah M. Baik,&nbsp;Haytham Othmani,&nbsp;Naif M. Alqarni,&nbsp;Abdullah A. Alqarni,&nbsp;Raghad A. Al-Dabbagh","doi":"10.1002/cre2.70161","DOIUrl":"https://doi.org/10.1002/cre2.70161","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Objective&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;To evaluate the effect of deep margin elevation (DME) and immediate dentin sealing (IDS) on the fracture strength of premolars restored with lithium disilicate inlay restorations.&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;Standard MOD inlays with proximal box preparations extending 3 mm apical to the cementoenamel junction were prepared on forty sound premolars (&lt;i&gt;n&lt;/i&gt; = 10) randomly divided into four groups: inlays without DME and without IDS (G1); inlays without DME but with IDS (G2); inlays with DME but without IDS (G3); and inlays with both techniques applied (G4). Composite resin was applied incrementally to elevate the proximal cervical margin coronally to the cementoenamel junction. For immediate dentin sealing, bonding agent was applied immediately after tooth preparation. All teeth were restored with lithium disilicate inlays and, after adhesive resin cementation, specimens were thermomechanically aged for 500 cycles at 5°–55°C and then subjected to load failure testing. Failure loads and locations were recorded and analyzed using one- and two-way ANOVA with Tukey's post-hoc testing (&lt;i&gt;α&lt;/i&gt; = 0.05). Failure modes were analyzed using descriptive statistics.&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 mean fracture loads were 565.76 ± 233.22 N, 978.47 ± 394.2 N, 974.31 ± 334.7 N, and 1108.21 ± 292.41 N for G1, G2, G3, and G4, respectively. Deep margin elevation (&lt;i&gt;p&lt;/i&gt; = 0.011) and immediate dentin sealing (&lt;i&gt;p&lt;/i&gt; = 0.010) were associated with significantly increased fracture loads. Fracture loads were significantly lower for G1 teeth than for G2-G4 teeth, but there were no significant differences between G2, G3, and G4. G1 teeth showed 50% catastrophic and non-catastrophic failures, which increased to 60% for G2 and decreased to 20% for G3 teeth. Samples with both seals and elevation (G4) had a 60% catastrophic failure rate.&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;When applied individually or together, deep margin elevation and immediate dentin sealing significantly increase the fracture strength of premolars restored with indirect lithium disilicate inlays.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Clinical Implications&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;In the challenging setting of margin elevation, studies on the effects of immediate dentin sealing have generally been limited to evaluating marginal integrity and bond strength. The findings of this In Vitro study suggest that both deep margin ele","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70161","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144367427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to “Effects of Repeated Use and Sterilization on the Wear of Zirconia Implant Drills: A SEM-Based Analysis”","authors":"","doi":"10.1002/cre2.70157","DOIUrl":"https://doi.org/10.1002/cre2.70157","url":null,"abstract":"<p>Alevizakos, V., Mosch, R., Platte, A.-C., and von See, C. 2025. “Effects of Repeated Use and Sterilization on the Wear of Zirconia Implant Drills: A SEM-Based Analysis.” <i>Clinical and Experimental Dental Research</i> 11: e70088. https://doi.org/10.1002/cre2.70088</p><p>Kemo Funder Statement was missing in the article. This statement has now been included.</p><p>We apologize for this error.</p>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70157","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of High-Power LED Barriers on Shear Bond Strength and Curing Time in Orthodontic Brackets With Single-Component Adhesive","authors":"Yasaman Bozorgnia,&nbsp;Mahla Tak,&nbsp;Maryam Jamali","doi":"10.1002/cre2.70153","DOIUrl":"https://doi.org/10.1002/cre2.70153","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>The dental light-curing unit is a crucial component in bonding brackets. Since it cannot be steam-sterilized, it is covered with a disposable barrier and disinfected between patients. This study examined the impact of the cellophane layer used to cover the light guides on both the shear bond strength and the adhesive remnant index.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Material and Methods</h3>\u0000 \u0000 <p>Fifty human premolars, extracted for clinical purposes, were randomly allocated into five groups. Three of these groups were cured using a high-power LED unit with a cellophane layer, applying curing times of 3, 6, and 9 s. The remaining two groups were cured for 3 and 6 s without a cellophane layer. The bracket shear bond strengths were assessed utilizing a universal testing machine. The collected data underwent analysis through a one-way analysis of variance (ANOVA), followed by Tukey's post hoc test.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The group with the highest shear bond strength was group 5 (6 s of light curing without a cellophane layer), while group 1 (3 s of light curing with a cellophane layer) had the lowest shear bond strength. Significant statistical differences were identified among the groups (<i>p</i> &lt; 0.05). Moreover, no notable differences were observed concerning the adhesive remnant index.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The cellophane layer decreased the shear bond strength. Therefore, to achieve clinically accepted values, at least 9 s of radiation is necessary when using cellophane.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70153","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dental Implants Placed in Fresh Human Extraction Sockets Without Osteotomy: A Case Series","authors":"Thanos Dounis,&nbsp;Valeria Jimenez Ortiz","doi":"10.1002/cre2.70159","DOIUrl":"https://doi.org/10.1002/cre2.70159","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>This case series evaluates healing parameters of immediately placed implants in fresh extraction sockets without osteotomies. It examines resonance frequency analysis (RFA) trends and radiographic bone changes from placement to prosthetic restoration.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Material and Methods</h3>\u0000 \u0000 <p>The study reports on eight patients with 10 implants using a self-tapping, knife-shaped implant with progressive thread design and anatomical healing abutments. RFA values and standardized radiographs were recorded at three time points from placement to prosthetic restoration.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Implants were placed in molar, premolar, and incisor sockets. All implants achieved insertion torque greater than 35 Ncm and high ISQ values. The median reported bone remodeling was 0.35 mm from implant placement to definitive restoration. RFA revealed a median of 64 ISQ buccolingually and 74 ISQ mesiodistally at placement, increasing to 76 ISQ buccolingually and 82 ISQ mesiodistally pre-prosthetically.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The findings suggest that immediate dental implants placed without osteotomies in select anatomical conditions can achieve successful osseointegration and functional stability. However, given the small sample size, further studies with larger cohorts are necessary to validate these results.</p>\u0000 </section>\u0000 </div>","PeriodicalId":10203,"journal":{"name":"Clinical and Experimental Dental Research","volume":"11 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cre2.70159","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}