Journal of Clinical and Experimental Dentistry最新文献

{"title":"Improving dimensional stability of irreversible hydrocolloid by condensation silicone incorporation.","authors":"Jefferson David Melo de Matos, João Pedro Oliveira de Batista, Jozely Francisca Mello Lima, Mário Alexandre Coelho Sinhoreti, Umberto Demoner Ramos, Daher Antonio Queiroz, Daniel Sartorelli Marques de Castro","doi":"10.4317/jced.64123","DOIUrl":"10.4317/jced.64123","url":null,"abstract":"<p><strong>Background: </strong>Irreversible hydrocolloid (alginate) is widely used for dental impressions, but its poor dimensional stability over time limits accuracy when delays in pouring occur. Enhancing its stability through material modification, such as incorporating condensation silicone, may improve clinical outcomes.</p><p><strong>Materials and methods: </strong>Three groups (n = 10) were evaluated: Group I (conventional alginate, Avagel), Group II (extended-pour alginate, Hydrogum 5), and Group III (alginate modified with condensation silicone). Specimens were fabricated using standardized molds and stored under controlled humidity. Dimensional stability was assessed at five time points (immediate, 24, 48, 72, and 120 h) by measuring mass and linear dimensions. Data were analyzed using ANOVA and Bonferroni tests (p &lt; 0.05), with effect size (²p) and 95% confidence intervals reported.</p><p><strong>Results: </strong>The experimental group demonstrated more consistent dimensional behavior over time, with reduced variability and more controlled effect sizes compared with conventional materials. Significant differences were observed at later time points, particularly at 72 h (p &lt; 0.05), where the modified material showed smaller dimensional changes. The incorporation of condensation silicone resulted in improved stability, as evidenced by more controlled dimensional variation.</p><p><strong>Conclusions: </strong>The addition of condensation silicone to an irreversible hydrocolloid significantly improved its dimensional stability, suggesting a promising approach to enhance clinical performance, especially when immediate pouring is not feasible.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"18 6","pages":"e780-e784"},"PeriodicalIF":0.0,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13353928/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421351","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":"Management of Ledge Formation and Perforations in Endodontics: A Survey of Knowledge, Attitudes, Practices, and Perceptions Among General Dental Practitioners and Endodontists.","authors":"Aruna Kumari Veronica, Kumar Dhanush, Venkatachalam Prakash, Anand Susila","doi":"10.4317/jced.64141","DOIUrl":"10.4317/jced.64141","url":null,"abstract":"<p><strong>Background: </strong>This study compared knowledge, attitudes, and perceptions of endodontists and general practitioners regarding ledge formation and root perforation.</p><p><strong>Materials and methods: </strong>A 15-item questionnaire assessed knowledge, attitudes, perceptions, and practices on ledge formation and root perforation. It was pilot-tested on 20 endodontists, revised for clarity and validity, and finalized for data collection.</p><p><strong>Results: </strong>A total of 202 responses (65%) were analyzed, including 51% academicians and 49% private practitioners. Most participants (82%) identified stiff instruments in curved canals as the primary cause of ledge formation, while 80% recognized sudden loss of working length as a key sign; 59% identified causes of apical perforation. Mineral trioxide aggregate was preferred by 98% for perforation repair, and CBCT by 72% for diagnosis. Additionally, 95% agreed that Ni-Ti instruments help prevent ledge formation, 84% practiced pre-curving of files, and 72% prioritized sealing, while 98% supported referral of perforation cases. Despite strong knowledge, clinical gaps were evident, with only 46% consistently using apex locators and 60% adhering to recommended protocols. Significant associations by experience involved causes, Ni-Ti use, apex locator use, management goals, and tip design. By professional status, differences included causes, Ni-Ti use, pre-curving, apex locator use, techniques, and rake angle. By practice type, causes, pre-curving, and rake angle varied. The Chi-square (²) test was used, with p &lt; 0.05 considered statistically significant.</p><p><strong>Conclusions: </strong>While practitioners demonstrate strong knowledge and positive attitudes, gaps in clinical implementation persist, particularly in the use of apex locators, adherence to protocols, and consistency in understanding causative factors.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"18 6","pages":"e808-e817"},"PeriodicalIF":0.0,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13353927/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421339","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":"Intraoral Scanners for Three-Dimensional Assessment of Peri-Implant Soft Tissues: A Systematic Review of Clinical Studies.","authors":"Kakhramon Shomurodov, Rano Mirkhusanova, Elyor Bekmurodov, Oybek Idiev","doi":"10.4317/jced.64074","DOIUrl":"10.4317/jced.64074","url":null,"abstract":"<p><strong>Background: </strong>Precise assessment and longitudinal monitoring of peri-implant soft tissues are essential in implant dentistry, and digital workflows may enable objective and reproducible quantification of soft-tissue dynamics. Objectives: To systematically evaluate the clinical performance of intraoral scanners (IOSs) for the three-dimensional (3D) assessment of peri-implant soft tissues, focusing on accuracy, reliability, reproducibility, and clinical applicability.</p><p><strong>Material and methods: </strong>This systematic review followed PRISMA guidelines and was registered in PROSPERO (CRD420261295073). Electronic searches of PubMed, Scopus, and Web of Science were conducted up to December 2025. Clinical studies evaluating IOS-based 3D assessment of peri-implant soft tissues were included. Data extraction and risk-of-bias assessment (ROBINS-I) were performed independently by two reviewers.</p><p><strong>Results: </strong>Five clinical studies involving 56 patients and 62 implants met the inclusion criteria. IOS-based digital workflows enabled precise the 3D quantification of peri-implant soft-tissue morphology, including contour replication and volumetric changes. The removal of provisional restorations resulted in immediate mucosal collapse and increased dimensional deviation, highlighting the importance of tissue stabilization during digital acquisition. Digital morphometric analysis demonstrated high repeatability and reproducibility, with low measurement variability. Compared with conventional clinical methods, IOSs provided greater sensitivity for detecting subtle soft-tissue changes and enabled objective longitudinal monitoring. The overall risk of bias was moderate, mainly due to small sample sizes and pilot study designs.</p><p><strong>Conclusions: </strong>The available evidence on the use of IOS for the 3D assessment of peri-implant soft tissues is limited and primarily derived from small pilot studies with a moderate risk of bias. While the initial findings indicate the potential to detect morphological and volumetric changes, the reliability and clinical relevance of these measurements remain uncertain. Further well-designed, adequately powered longitudinal studies with standardized protocols are required to clarify their validity and clinical applicability.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"18 6","pages":"e833-e841"},"PeriodicalIF":0.0,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13353921/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421364","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 Canal Transportation, Centring Ability, Shaping Volume and Debris Extrusion in Double-Curved Root Canals Prepared with Four Reciprocating Systems: An in vitro study.","authors":"Hernan Dario Muñoz-Alvear, Javier Caviedes-Bucheli, Hugo Roberto Muñoz, David Alvear, Juan Restrepo-Puetaman, Esteban Arciniegas-Guzman, Juan Diaz-Villacis, Luis Lopez-Moncayo, Néstor Ríos-Osorio","doi":"10.4317/jced.64050","DOIUrl":"10.4317/jced.64050","url":null,"abstract":"<p><strong>Background: </strong>This in vitro study aims to evaluate canal transportation, centring ability, volumetric change, and apical debris extrusion of four reciprocating systems using CBCT, machine-learning segmentation, and the Myers-Montgomery method.</p><p><strong>Material and methods: </strong>Forty-eight 3D-printed maxillary canine resin teeth with standardised double-curved canals were randomly allocated to Reciproc Blue (RB), WaveOne Gold (WOG), One Reci (OR), or RC-One (n = 12). All canals were prepared at body temperature using manufacturer-recommended kinematics. Pre- and post-instrumentation CBCT scans (voxel size 70 µm) were segmented using supervised clustering to obtain canal geometry. Transportation and centring ability were analysed at 0.5-10 mm from the apex. Canal volume change was calculated from three-dimensional reconstructions. Apically extruded debris was collected and weighed. Non-parametric statistics (Kruskal-Wallis with Dunn's post hoc test) were applied ( = 0.05).</p><p><strong>Results: </strong>RC-One exhibited the lowest debris extrusion (median 0.032 mg), whereas WOG produced the greatest extrusion. RC-One also showed the lowest canal transportation (median 0.27), significantly lower than the other systems (p &lt; 0.001), while WOG demonstrated the highest transportation (mean 0.80). RC-One achieved the highest centring ability (mean 0.69), whereas WOG showed the lowest (mean 0.42). The smallest volumetric enlargement was observed with RC-One (99.57%), significantly lower than WOG and RB (p &lt; 0.01). WOG produced the greatest volume increase (137.23%).</p><p><strong>Conclusions: </strong>RC-One demonstrated the most favourable overall performance, with superior centring ability, minimal transportation, conservative shaping, and the lowest apical debris extrusion. These outcomes may be related to the interaction between its alloy properties, geometric design, and reciprocating kinematics. In contrast, WOG showed greater canal deviation and debris extrusion under the present experimental conditions.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"18 5","pages":"e662-e670"},"PeriodicalIF":0.0,"publicationDate":"2026-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13354048/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421182","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 Pre-emptive Injection-based Corticosteroid Administration and Its Routes on Post-Endodontic Pain: A Systematic Review and Meta-analysis of Randomized Clinical Trials.","authors":"Reem Al-Yamoor, Stefan Vasile Stefanescu, Maria Miheala Iuga, Fernando Mauricio Espada-Salgado, Steve Bilsborrow, Kavalipurapu Venkata Teja, Kaligotla Apoorva Vasundhara","doi":"10.4317/jced.64027","DOIUrl":"10.4317/jced.64027","url":null,"abstract":"<p><strong>Background: </strong>Post-endodontic pain PP is a frequent complication following root canal treatment RCT, primarily resulting from acute inflammation. Pre-emptive corticosteroid administration has been proposed to attenuate this inflammatory response and reduce PP. This systematic review and meta-analysis assessed the effectiveness of injection-based corticosteroids delivered through different routes in minimizing PP at various postoperative intervals.</p><p><strong>Material and methods: </strong>A comprehensive search of PubMed, Scopus, Web of Science, LILACS, Cochrane Library, and Google Scholar was conducted up to March 2025, following PRISMA 2020 guidelines. Randomized controlled trials evaluating pre-emptive corticosteroid injections via infiltrative, intraligamentary, or intramuscular routes were included. Risk of bias was assessed using the Cochrane RoB 2.0 tool, and meta-analyses were performed using Review Manager 5.4. The review was prospectively registered in PROSPERO CRD420251005886.</p><p><strong>Results: </strong>Nine RCTs comprising 917 participants were analyzed. Corticosteroid injections, including dexamethasone, methylprednisolone, and betamethasone, significantly reduced PP compared with placebo at all time points, with the most pronounced effect within the first 12 hours and sustained, though reduced, benefits up to 72 hours. Infiltrative injections demonstrated greater efficacy than intraligamentary routes.</p><p><strong>Conclusions: </strong>Pre-emptive corticosteroid injections, particularly dexamethasone via infiltrative or intraligamentary routes, effectively reduce post-endodontic pain, especially within the first 24 hours.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"18 5","pages":"e688-e703"},"PeriodicalIF":0.0,"publicationDate":"2026-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13354040/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421179","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":"Accuracy of visual and radiographic ICDAS-merged criteria for secondary caries on permanent posterior teeth.","authors":"Yaysa Vásquez, Margarita Usuga-Vacca, Stefania Martignon, Andrea Cortes","doi":"10.4317/jced.63565","DOIUrl":"10.4317/jced.63565","url":null,"abstract":"<p><strong>Background: </strong>This in vitro study evaluated the diagnostic accuracy of visual and radiographic assessments for secondary caries (ICDAS-merged) on posterior permanent teeth.</p><p><strong>Material and methods: </strong>Teeth were obtained from a university tooth bank and selected based on the presence of occlusal or proximal restorations. Two trained examiners assessed 296 restored surfaces using ICDAS-merged secondary caries criteria, grouping scores into sound (0), initial (1-2), moderate (3-4), and extensive (5-6). Scores were validated against a histological gold standard using three diagnostic thresholds: (1) sound vs. initial+moderate+extensive; (2) sound+initial vs. moderate+extensive; and (3) sound+initial+moderate vs. extensive. Analyses included Spearman correlation, weighted kappa, and calculation of sensitivity, specificity, and accuracy.</p><p><strong>Results: </strong>After sample evaluation included 129 premolar surfaces and 167 molar surfaces, restored either with amalgam (n = 194) or composite resin (n = 102). Both methods showed substantial inter- and intra-examiner reproducibility (kappa: 0.70-0.80). Correlation with histology was substantial for both visual (=0.73) and radiographic (=0.70) assessments. At the threshold of sound vs. initial+moderate+extensive, specificity was high (visual: 0.85; radiographic: 0.93), while sensitivity was higher for visual (0.80) than for radiographic criteria (0.68). Overall accuracy was high for both methods (visual: 0.83; radiographic: 0.81). Across restorative materials, visual assessment showed consistent accuracy for amalgam and composite restorations. In contrast, radiographic assessment showed lower sensitivity for amalgam (0.61) and composite (0.64) restorations at the same threshold. ICDAS-merged visual criteria demonstrated strong accuracy and reproducibility for detecting secondary caries in restored permanent teeth, regardless of restorative material.</p><p><strong>Conclusions: </strong>Radiographic criteria exhibited high specificity but lower sensitivity, particularly for early lesions, highlighting the value of visual inspection as a reliable method for detecting secondary caries in clinical settings.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"18 5","pages":"e681-e687"},"PeriodicalIF":0.0,"publicationDate":"2026-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13354049/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421057","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":"Cyclic fatigue resistance of two NiTi rotary instruments after blue heat treatment.","authors":"Idalia Rodríguez-Delgado, Jennipher Monserrat Salazar-Vázquez, Jorge Jaime Flores-Treviño, Mayra Guadalupe Martínez-García, José M Diabb-Zavala, Myriam Angélica De La Garza-Ramos","doi":"10.4317/jced.63881","DOIUrl":"10.4317/jced.63881","url":null,"abstract":"<p><strong>Background: </strong>This study evaluated the cyclic fatigue resistance of two blue heat-treated rotary instruments. Thirty files (15 Eflex Blue and 15 BlueShaper) activated by an E-CONNECT motor at 350 RPM with a 2.5 N torque were evaluated.</p><p><strong>Material and methods: </strong>A stainless-steel device with three different curvatures (25°, 45°, and 90°) was fixed to a SHIMADZU tensile testing machine to measure cyclic fatigue. The instruments were placed on the motor at a constant speed, then on the testing device; the time to each instrument's fracture was recorded. Tension, time, and instrument deformation were measured. Data were analyzed using the Shapiro-Wilk and Kruskal-Wallis tests at a 5% significance level.</p><p><strong>Results: </strong>Eflex Blue files demonstrated superior tensile strength and stability over time, particularly at a 25° curvature (p &lt; 0.05). Performance was comparable between the two files at 45° and 90° curvatures, with no significant differences in deformation percentage.</p><p><strong>Conclusions: </strong>Eflex Blue files demonstrated greater cyclic fatigue resistance than BlueShaper, especially at smaller curvatures (25°). Although both systems exhibited similar deformation rates, the fracture resistance of both files decreased as curvature increased, reaching a critical threshold at 90°.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"18 5","pages":"e611-e615"},"PeriodicalIF":0.0,"publicationDate":"2026-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13354050/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421125","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":"Bioactivity and dimensional stability of resin-, hybrid-, and silicate-based endodontic sealers: An in vitro comparative study.","authors":"Mirlyn de Souza Dias, Joana Lia Freitas Furtado, Maria Aline Ferreira Damasceno, Janaina Cabral de Carvalho, Delane Viana Gondim, Murilo Priori Alcalde, Marco Antônio Húngaro Duarte, Bruno Carvalho de Vasconcelos","doi":"10.4317/jced.63855","DOIUrl":"10.4317/jced.63855","url":null,"abstract":"<p><strong>Background: </strong>The success of endodontic treatment depends on selecting sealers with suitable physicochemical and biological properties. Solubility, pH, and calcium ion (Ca²+) release are critical factors influencing biocompatibility, antimicrobial activity, and long-term sealing.</p><p><strong>Material and methods: </strong>This in vitro study compared three endodontic sealers, AH Plus (AHP), MTA Fillapex (MTAF), and EndoSequence BC Sealer (ESBC). pH was measured with a digital pH meter, and Ca²+ release was determined by atomic absorption spectrophotometry after 3, 24, 72, and 168 hours. Volumetric solubility was analyzed using micro-computed tomography before and after 7 days of immersion.</p><p><strong>Results: </strong>All sealers exhibited an alkaline pH. ESBC showed the highest pH and Ca²+ release at all time points, followed by MTAF. AHP released minimal and progressively decreasing calcium release. In volumetric analysis, ESBC demonstrated the greatest solubility, with pronounced volume reduction, whereas AHP and MTAF showed slight mass gain, indicating greater dimensional stability.</p><p><strong>Conclusions: </strong>Although ESBC exhibited higher bioactive potential, its excessive solubility may impair long-term sealing. AHP and MTAF presented more stable dimensional behavior, suggesting better long-term performance. These in vitro results highlight the balance between bioactivity and stability as a key factor when selecting root canal sealers for clinical use.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"18 5","pages":"e605-e610"},"PeriodicalIF":0.0,"publicationDate":"2026-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13354044/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421078","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":"In-house digital workflow for virtual surgical planning and guide fabrication in bimaxillary orthognathic surgery with genioplasty: A technical case report.","authors":"Martín Andura-Correas, Guillermo Chacón-Ferrer, Marta María Pampín-Martínez, Álvaro Sada-Malumbres, José Luis Del Castillo-Pardo-de Vera, José Luis Cebrián-Carretero","doi":"10.4317/jced.64061","DOIUrl":"10.4317/jced.64061","url":null,"abstract":"<p><strong>Background: </strong>Virtual surgical planning (VSP) has become the standard approach in orthognathic surgery, allowing more precise and predictable skeletal movements. However, many centers still rely on outsourced digital workflows for surgical planning and guide fabrication, which may increase turnaround times and costs. The development of in-house digital workflows offers an alternative that allows full control of the planning and manufacturing process.</p><p><strong>Material and methods: </strong>A patient with dentofacial deformity underwent bimaxillary orthognathic surgery (Le Fort I and bilateral sagittal split osteotomy) with guided genioplasty using a \"Maxilla First\" protocol. DICOM files from CBCT imaging and STL models from intraoral scans were merged in IPS Case Designer to perform virtual surgical planning. Surgical splints and guides were designed using Meshmixer and manufactured in the hospital's 3D laboratory using stereolithography with biocompatible resins. Post-processing included alcohol cleaning, thermal curing, and sterilization according to hospital protocols.</p><p><strong>Results: </strong>The entire workflow from image acquisition to sterilized surgical guides was completed within approximately 3-5 days. Virtual planning allowed accurate simulation of skeletal movements and fabrication of patient-specific guides and splints. Intraoperative application demonstrated excellent adaptation of the guides and splints, allowing precise transfer of the virtual plan and reducing the need for intraoperative adjustments.</p><p><strong>Conclusions: </strong>In-house digital workflows represent a feasible and efficient approach for orthognathic surgery planning and guide fabrication. This model improves communication between clinical and technical teams, reduces production times and costs, and increases autonomy in surgical planning.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"18 5","pages":"e716-e719"},"PeriodicalIF":0.0,"publicationDate":"2026-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13354051/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421136","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":"Internal root resorption: understanding the pink tooth of mummery and its clinical implications.","authors":"Halex de Souza Mercante, Gabriel Pereira Nunes, Priscila Toninatto Alves de Toledo, Michela Melissa Duarte Seixas Sostena, Larissa Pereira Nunes, Hugo Rodrigues Gonçalves, Tamires Passadori Martins, Ana Paula Miranda Vieira","doi":"10.4317/jced.63932","DOIUrl":"10.4317/jced.63932","url":null,"abstract":"<p><strong>Background: </strong>Root resorption may be physiological or pathological. Physiological resorption occurs in deciduous teeth to allow replacement by permanent successors. In permanent dentition, resorption is pathological and classified as external (ERR) or internal (IRR), depending on its origin. IRR begins within the root canal and may lead to progressive dentin destruction. Although often asymptomatic, advanced cases may present as a pink discoloration of the crown, known as Pink Tooth of Mummery (PTM). To review current scientific evidence regarding the etiology, pathogenesis, classification, diagnosis, and treatment of IRR, as well as its clinical association with PTM.</p><p><strong>Material and methods: </strong>This review was conducted using a structured search of PubMed, Scopus, LILACS, and SciELO. Studies addressing IRR in human teeth and aspects related to its etiology, pathogenesis, classification, diagnosis, or treatment were included. Reports involving PTM associated with internal or external resorptive processes were also considered. Data were extracted and qualitatively synthesized.</p><p><strong>Results: </strong>A total of 62 articles were selected for analysis. Trauma was the most frequently reported etiological factor, followed by orthodontic movement, pulpotomy procedures, pulp infections, and tooth autotransplantation. IRR is classified as internal surface, internal inflammatory, or internal replacement resorption, based on biological and pathological features. Diagnosis relies on clinical examination and imaging, with cone beam computed tomography improving assessment of lesion location and extent. Conventional endodontic treatment remains the primary management strategy in favorable cases. PTM is not exclusive to IRR and may also occur in external or physiological resorption. The literature on PTM consists predominantly of case reports.</p><p><strong>Conclusions: </strong>Early diagnosis is essential for the appropriate management of IRR. While bioactive materials and regenerative approaches have been explored, current evidence remains limited, particularly regarding PTM, highlighting the need for further clinical studies.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"18 5","pages":"e616-e627"},"PeriodicalIF":0.0,"publicationDate":"2026-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13354038/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148421177","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}