Journal of Clinical and Experimental Dentistry最新文献

{"title":"Effect of precooling on the assessment of pain during local anesthesia in adults: A systematic review and meta-analysis.","authors":"Ana Beatriz Leme de Andrade, Sandra Lúcia Dantas de Moraes, Arthur José Barbosa de França, Rayanna Thayse Florêncio Costa, Eduardo Piza Pellizzer, Belmiro Cavalcanti do Egito Vasconcelos","doi":"10.4317/jced.62351","DOIUrl":"https://doi.org/10.4317/jced.62351","url":null,"abstract":"<p><strong>Background: </strong>Various methods aim to reduce pain from local anesthesia injections. While commonly used, topical anesthetics have limitations. This systematic review aimed to assess whether precooling is a more effective alternative to topical anesthetics for pain control during local anesthesia injections in adults.</p><p><strong>Material and methods: </strong>The review followed PRISMA guidelines and used the PICO framework. The protocol was registered in PROSPERO (CRD42023446314). Independent searches were conducted in PubMed/MEDLINE, SCOPUS, and Web of Science for studies published up to November 2024. Articles meeting the eligibility criteria were included. Data were extracted by one author and verified by another. A meta-analysis was performed to evaluate pain between the precooling and topical anesthetic groups after anesthesia and during needle insertion.</p><p><strong>Results: </strong>Eight randomized clinical trials met the inclusion criteria, with a combined sample of 415 patients. Six of the eight studies reported lower pain scores in patients who received precooling compared to those treated with topical anesthetics. Various agents were used for both local cooling and topical anesthesia. Meta-analysis showed statistically significant pain reduction in favor of precooling after anesthesia; however, no significant differences were found during needle insertion.</p><p><strong>Conclusions: </strong>Precooling may be an effective alternative to topical anesthetics, reducing pain associated with needle insertion and anesthetic injection in adults. Further research is warranted to establish a standardized application protocol. <b>Key words:</b>Local anesthesia, pain, precooling, cryoanesthesia, systematic review.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e341-e349"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994209/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143982009","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":"Association Between Alzheimer's Disease and Periodontal Inflammatory Parameters: A Systematic Review.","authors":"Adriana Melo, Javier Flores-Fraile, Roberto Lo Giudice, Enrico Marchetti, José Nart, Alice Rose Greethurst, Francisco Real-Voltas, Francesco Tarallo, Cosimo Galletti","doi":"10.4317/jced.62519","DOIUrl":"https://doi.org/10.4317/jced.62519","url":null,"abstract":"<p><strong>Background: </strong>The purpose of this systematic review was to analyze the current evidence of the potential correlation between periodontitis inflammatory parameters and Alzheimer's Disease (AD).</p><p><strong>Material and methods: </strong>A systematic review was conducted in accordance with the PRISMA guidelines. Electronic literature searches in PubMed, Medline, EBSCO, Scopus (ELSEVIER), Cochrane Library (Wiley) and Grey Library were conducted to analyze relevant references. Eligibility was based on inclusion criteria which included cross-sectional studies published after 2012.The rationale for selecting this temporal framework was grounded in the availability of studies from this period that aligned with the objectives and parameters of the review Authors independently selected the studies and extracted the data. Quality assessment was conducted under the Newcastle-Ottawa scale. The outcome variables were objectives, demographics, risks factors, dental statement, Pathogens, and conclusions.</p><p><strong>Results: </strong>The technique used was the comparison, pooling and study of different case studies (considered, or not, significant and/or representative). Out of 564 potentially eligible articles, 5 cross-sectional articles were included based on specific inclusion criteria such as being published after 2012, alignment with the study objectives, and focusing on Alzheimer's disease and periodontal inflammatory parameters. All five studies highlight a higher prevalence of AD in women that increases in age. While four studies supported connection between AD and periodontal inflammatory parameters, one study found no plausible association. The quality assessment displayed a mean score of 10.8 (Range: 0 to 13), being the domain \"selection\" the highest ranked and the \"comparability\" the lowest.</p><p><strong>Conclusions: </strong>Despite some conflicting studies, most suggest a positive correlation between PD and AD, highlighting the necessity for further clinical and longitudinal research. Also, patients with AD exhibit poorer oral hygiene, which contributes to PD, emphasizing the need for comprehensive dental care. Factors such as genetics, lifestyle and age play a significant role in this association. <b>Key words:</b>Alzheimer's disease, Cytokines, Gingipains, Periodontitis, Porphyromonas gingivalis.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e310-e323"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994203/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143985169","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":"Assessing the reliability of an integrated device measuring tongue pressure and bite force among dentate individuals - An observational study.","authors":"Jayaraja Banuchandar, Arun Aishwarya, Mani Uma-Maheswari, Mohamed Kasim","doi":"10.4317/jced.62517","DOIUrl":"https://doi.org/10.4317/jced.62517","url":null,"abstract":"<p><strong>Background: </strong>Tooth loss leading to complete edentulism negatively impacts quality of life and oral function. Reduced biting force capability affects normal oral function in those who have lost teeth. Decreased tongue pressure significantly affects total oromotor function, especially swallowing. While devices exist to measure biting force and tongue pressure independently, integrated evaluation tools are lacking. This emphasizes developing a reliable integrated tool for simultaneous evaluation. Purpose: To evaluate the reliability of an integrated device designed to measure tongue pressure and bite force simultaneously in dentate individuals.</p><p><strong>Material and methods: </strong>Study participants were 80 dentate individuals aged 21 to 55 years who were apparently normal. Participants with specific dental restorations, temporomandibular joint disorders, musculoskeletal disorders, or pacemakers were excluded. The MD30-60 force-sensitive sensors were employed to collect data on tongue pressure and bite force. Three recordings of the tongue pressure and bite force was done by three investigators at 1 minute time interval to prevent muscle fatigue. Statistical analysis utilized Intraclass Correlation Coefficient (ICC) and Lin's Concordance Correlation Coefficient (CCC) to assess the reliability of measurements.</p><p><strong>Results: </strong>The analysis of the Intraclass correlation and Lin's concordance correlation coefficient demonstrated excellent reliability for bite force measurements, with ICC values ranging from 0.882 to 0.906 and a mean bite force of approximately 510 N. Intraclass Correlation Coefficient (ICC) values ranged from 0.795 to 0.827 indicating good consistency among investigators. Bland-Altman analysis confirmed minimal bias and strong agreement for both measurements across investigators.</p><p><strong>Conclusions: </strong>The novel integrated device demonstrated high reliability for measuring bite force and tongue pressure simultaneously. <b>Key words:</b>Bite force, tongue pressure, reliability, integrated device, oral function, oro-motor function, clinical diagnosis, treatment planning, edentulism.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e293-e302"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994205/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144011244","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":"Dentoalveolar changes and transverse discrepancies through the treatment of class II division 1 malocclusion in children using a twin block device.","authors":"Harun Achmad, Rasmidar Samad, Mansjur Nasir, Asmidar Anas, Sri Ramadhany, Arrang Sesioria","doi":"10.4317/jced.62509","DOIUrl":"https://doi.org/10.4317/jced.62509","url":null,"abstract":"<p><strong>Background: </strong>This study aims to analyze dentoalveolar changes and transverse discrepancies in the treatment of class II division 1 dentoskeletal malocclusion before and after treatment using a functional twin block device.</p><p><strong>Material and methods: </strong>This study used a comparative analytical study to compare dentoalveolar changes and maxillary transverse discrepancies. The research sample was a study model of patients aged 7-15 years with 23 study models with class II division 1 dentoskeletal malocclusion cases at the clinic of the Department of Pediatric Dentistry, Hasanuddin University Educational Oral and Dental Hospital (RSGMP UNHAS). A sampling of the study model was carried out by purposive sampling. The measurement data was tested using the chi-squared normality test and then the statistical test was the paired t test.</p><p><strong>Results: </strong>Based on the statistical analysis of paired t-test there is a change in the distance between the mandibular canines, there is a change in the distance between the first premolars or between the mandibular first primary molars, there is a change in the distance between the second premolars or between the maxillary second primary molars, and there is a change in the distance between the maxillary molars after treatment using a twin block device.</p><p><strong>Conclusions: </strong>There were substantial dentoalveolar alterations in overjet, overbite, molar relation, and distance between premolars and molars after using the twin block device. <b>Key words:</b>Malocclusion, twin block, dentoalveolar, jaw discrepancy.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e239-e248"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994204/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064124","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 Matrix Metalloproteinase Inhibitors on the Dentin Bond Strength and Durability of a Two-Step Universal Adhesive System.","authors":"Mohammad Esmaeel Ebrahimi-Chaharom, Aida Moeinian, Mehdi Abed-Kahnamouei, Mehdi Daneshpooy, Mahmoud Bahari","doi":"10.4317/jced.62406","DOIUrl":"https://doi.org/10.4317/jced.62406","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to investigate the effects of using two types of matrix metalloproteinase inhibitors (MMPI) on the dentin bond strength and durability of a two-step universal adhesive (G2-BOND Universal Adhesive).</p><p><strong>Material and methods: </strong>This study was conducted on 24 extracted molars, resulting in 144 samples. The occlusal surface of the teeth was cut perpendicularly to the longitudinal axis to expose the dentin. The samples were divided into 6 groups: Group 1 (Control, etch-and-rinse (ER)): bonding in the ER mode without MMPI; Group 2: bonding in the ER mode with chlorhexidine (CHX); Group 3: bonding in the ER mode with benzalkonium chloride (BAC); Group 4 (Control, Self-etch (SE)): bonding in the SE mode without MMPI; Group 5: bonding in the SE mode with CHX; Group 6: bonding in the SE mode with BAC. The entire dentin surface was restored with composite resin. Each group was further divided into two subgroups and either thermocycled for 500 or 10,000 cycles. The samples were cut into cylinders with a one square millimeter cross-sectional area and tested for microtensile bond strength (µTBS). Data was analyzed using 3-Way ANOVA and Games-Howell tests (<i>p</i>< 0.05).</p><p><strong>Results: </strong>There was a statistically significant difference in the mean µTBS based on the type of MMPI, aging method, and etching strategy. The mean µTBS in the Control group was significantly lower than in the CHX and BAC groups (<i>P</i>< 0.05). The mean µTBS was higher at 24 hours and in the ER group (<i>P</i>< 0.001). The effect of aging was consistent and decreasing (<i>P</i>> 0.05).</p><p><strong>Conclusions: </strong>The µTBS to dentin decreases after aging. However, the use of MMPI preserves bond strength to some extent in comparison to control groups after aging. <b>Key words:</b>Universal adhesive, Matrix metalloproteinase, Bond strength, Chlorhexidine, Benzalkonium chloride.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e233-e238"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994208/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144005867","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":"Computer-Aided excision of Parapharyngeal Space Pleomorphic Adenoma by Transcervical Approach. Case report.","authors":"Clara López-Martínez, Íñigo Aragón-Niño, Alba García-López-Chicharro, Marta María Pampín-Martínez, José Luis Cebrián-Carretero","doi":"10.4317/jced.62547","DOIUrl":"https://doi.org/10.4317/jced.62547","url":null,"abstract":"<p><strong>Background: </strong>The parapharyngeal space, situated in the neck's lateral part, poses challenges for surgical intervention due to its complex anatomy. Tumors in this space are rare, accounting for 0.5-1% of head and neck tumors, often remaining asymptomatic until reaching substantial sizes.</p><p><strong>Material and methods: </strong>This article outlines the surgical management of such lesions using navigation software, illustrated through a clinical case. A 38-year-old male presented with a mass at the right mandibular angle. Preoperative planning with Brainlab iPlan CMF® software aided in understanding the tumor's relationship with adjacent structures. A transcervical approach facilitated tumor excision without damaging vital anatomical structures. Histopathology confirmed pleomorphic adenoma.</p><p><strong>Results: </strong>The paper underscores the rarity of parapharyngeal tumors, the importance of individualized surgical strategies, and the utility of 3D technology in preoperative planning for enhanced anatomical understanding.</p><p><strong>Conclusions: </strong>The cervical approach remains a satisfactory choice for benign lesions in this challenging space. <b>Key words:</b>Parapharyngeal space, 3D technology, pleomorphic adenoma, transcervical approach, virtual planning.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e350-e353"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994214/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144016943","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":"Bolton's ratio variations in Angle's Class I, Class II and Class III malocclusions: An observational study.","authors":"Pinaki Roy, Poulomi Roy, Sourav Koley, Subhasis Sheet","doi":"10.4317/jced.62591","DOIUrl":"https://doi.org/10.4317/jced.62591","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to compare Bolton's Overall and Anterior ratio in different types of malocclusions.</p><p><strong>Material and methods: </strong>105 study cast were taken from the patients undergoing orthodontic treatment and they were divided into three classes based on molar relation, i.e. Angle's Class I (n = 35), Angle's Class II (n = 35) and Angle's Class III (n = 35) according to the Angle's classification of malocclusion. The mesio-distal widths of all maxillary and mandibular teeth from right first molar to left first molar were measured with a digital calliper. The findings were then used to calculate the anterior and total Bolton's ratios. Statistical analysis was done using ANOVA and Tukey's test.</p><p><strong>Results: </strong>The mean total ratio for the whole sample was 91.4±3.33, which is very close to Bolton's proposed ideal ratio. The anterior ratio for the whole sample was found to be 77.4±9.02, which is also similar Bolton's proposed ideal ratio. In Class I patients, the mean total ratio calculated was 91.2 ± 2.69, that is close to Bolton's proposed ideal ration and the mean anterior ratio calculated was 79.2±3.78, which is greater than Bolton's proposed ratio that signify increased mesio-distal width in mandibular anterior segment. The total mean ratio calculated for Class II was 91.1 ± 3.44) and for Class III patients was 92±3.77. The anterior mean ratio for class III patients was 78.6±5.24 and for Class II patients was 76.8± 5.28 which indicates higher anterior ration for class III patients and lower anterior ratio for class II patients compared to Bolton's ideal ratio that signifies mandibular anterior tooth material excess in Class III patients and maxillary anterior tooth material excess in class II cases.</p><p><strong>Conclusions: </strong>In this study population there was increased mesio-distal width in mandibular anterior segment in patients with Class I and Class III malocclusion. Also, there is maxillary anterior tooth material excess in Class II patients. <b>Key words:</b>Angle's classification, Anterior ratio , Bolton's Ratio , Inter-arch relationship, Overall ratio.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e280-e285"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994211/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144020550","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 Botulinum Toxin Injection into the Masseter Muscle in Patients with Bruxism: A single-arm, Institutional-Based Prospective Clinical Study.","authors":"Shehab Ahmed Hamad, Osama Ahmed, Ahmed Alraad","doi":"10.4317/jced.62496","DOIUrl":"https://doi.org/10.4317/jced.62496","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to evaluate the effect of botulinum toxin injection into the masseter muscle in patients with bruxism, focusing on pain, maximum mouth opening, occlusal bite force, and masseter muscle thickness.</p><p><strong>Material and methods: </strong>Thirty patients with bruxism (21 females, 9 males; mean age 32 ± 10 years) were injected with 10 IU of botulinum toxin into each masseter muscle. Evaluations were conducted at baseline and at 4, 8, and 12 weeks post-injection to assess pain, maximum mouth opening, occlusal bite force, and masseter muscle thickness.</p><p><strong>Results: </strong>Pain scores significantly declined from 6.8 ± 1.2 to 3. 4± 1.1 at 4 weeks. Mouth opening showed a significant improvement, increasing from 38.2 ± 3.9 mm to 41.3 ± 4.0 mm at 4 weeks. Bite force was significantly reduced from 500.5 ± 45.2 N to 422.0 ± 39.2 N at 4 weeks. Masseter muscle thickness also significantly decreased, from 13.4 ± 1.6 mm to 11.8 ± 1.5 mm at 4 weeks. A positive correlation was observed between the reduction in masseter muscle thickness and the decrease in bit force.</p><p><strong>Conclusions: </strong>Botulinum toxin injection was safe and effective in reducing pain, masseter muscle thickness, and bite force, as well as in improving mouth opening in patients with bruxism. <b>Key words:</b>Bite force, botulinum toxin-A, bruxism, masseter muscle, mouth opening.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e268-e272"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994210/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144020834","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 the bond strength, surface roughness and wettability between 3D-printed denture base resin to denture lining material to different surface treatments.","authors":"Ana Larisse Carneiro Pereira, Bárbara Beatriz Teixeira Lima Cardoso de Souza, Larissa Mendonça de Miranda, Míria Rafaelli Souza Curinga, Lucas Cavalcante de Sousa, Edson Érick Fernandes de Queiroz, Valentim A R Barão, Adriana da Fonte Porto Carreiro","doi":"10.4317/jced.62350","DOIUrl":"https://doi.org/10.4317/jced.62350","url":null,"abstract":"<p><strong>Background: </strong>The low bond strength between 3D-printed denture base resin and denture lining material is due to the difference in chemical structure, which justifies the use of methods to increase such bond. This study aims to examine the influence of different surface treatments on the bond strength, surface roughness, and wettability between 3D-printed denture resin and denture lining material.</p><p><strong>Material and methods: </strong>Bar-shaped (75×10×10 mm) and square-shaped (10×10×3 mm) specimens were manufactured using heat-polymerized (HT) (VIPICRIL Plus) and 3D-printed (3D) (Prizma 3D Bio Denture) denture base resin. The bar specimens were sectioned, removing 3 mm from the center to facilitate the insertion of the denture lining material (Ufi Gel SC). Specimens were subjected to three surface treatments (n=15): no treatment (CT), immersion in monomer for 180 seconds (M), and airborne-particle abrasion oxide with 50 µm aluminum oxide (AP). The tensile bond strength was measured at a rate of 5mm/min before and after subjecting the specimens to thermocycling (10 000 cycles). The square-shaped specimens were used to assess average surface roughness (Ra) and wettability (°). Data analysis was performed using a 3-way ANOVA with Tukey's post-test (<i>P</i><.05).</p><p><strong>Results: </strong>The treatment of the 3D-printed denture base resin (1.200±0.486) with AP made the bond strength to the denture lining material similar to HT denture base resin (1.314±0.249), without the negative impact of aging. In contrast, M treatment increased the bond strength of both resins to the denture lining material (HT: 2.076±0.463; 3D: 1.534±0.484). Treatment with M provided a lower contact angle for the 3D and HT denture base resin, while the HT denture base resin presented a greater surface roughness for M and AP, compared to 3D.</p><p><strong>Conclusions: </strong>The 3D-printed denture base resin should undergo immersion in monomer treatment to enhance its bond strength with the denture lining material. <b>Key words:</b>Denture lining material, Complete denture, Manufactured material, Denture base resin, Bond strength.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e249-e258"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994212/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144003509","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":"Influence of Er, Cr and Diode-980nm lasers on the microhardness of root dentin after cariogenic challenge.","authors":"Bruna Alves Castro de Menezes, Larissa Rocha Pacheco, Fernanda Rodrigues Borges Amaral Guarato, Gabriella Rodovalho Paiva, Juliana Jendiroba Faraoni, Regina Guenka Palma-Dibb, Maria Angélica Hueb de Menezes Oliveira, Denise Tornavoi de Castro, Vinícius Rangel Geraldo-Martins, Cesar Penazzo Lepri","doi":"10.4317/jced.62412","DOIUrl":"https://doi.org/10.4317/jced.62412","url":null,"abstract":"<p><strong>Background: </strong>Root caries is an oral health condition characterized by the demineralization of the root surfaces of teeth. It is particularly common among elderly populations. Lasers have proven to be quite effective in treating root caries, with varying effects depending on the laser parameters and the target tissue. Thus, aim of this article was to evaluate the influence of Er,Cr laser irradiation and 980 nm diode laser application, with or without fluoride treatment, on the microhardness of root dentin.</p><p><strong>Material and methods: </strong>Eigthy-bovine incisors were selected (4mm x 4mm x 3mm-thickness) and divided into 8 groups (n=10). NT: no treatment (negative control); FG: Fluoride gel (2%NaF); Er,Cr: Er,Cr: YSGG; Er,Cr+FG; FG+ Er,Cr; Di: 980 nm diode laser; Di+FG; FG+Di. The parameters Er,Cr:YSGG laser were as follows: 0.25 W; 5.0 Hz; 4.46 J/cm2 without water and 55% air. Furthermore, the 980-nm diode laser parameters were 2.0 W; 2.0 Hz; 21.41 J/cm2. Half of each specimen was isolated (control area) and the other half received one of the treatments proposed after to pH cycling during for 15 days to simulate a high caries risk environment, followed by longitudinal microhardness analysis (Knoop) under a load of 30 gf for 30 seconds. Microhardness percentage values were analyzed using the non-parametric Kruskal-Wallis test, followed by Dunn's post hoc test for pairwise comparisons.</p><p><strong>Results: </strong>The highest percentage of microhardness loss was observed at 30 μm in FG (35.7%) and in CO (51.9%) (<i>p</i>< 0.05).</p><p><strong>Conclusions: </strong>This study suggests that laser irradiation, with or without fluoride application, is associated with reduced microhardness loss in root dentin. <b>Key words:</b>Dentin, Fluoride, Hardness Tests, Laser, Root caries.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e303-e309"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994207/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144001857","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}