Dental and Medical Problems最新文献

{"title":"Bond strength of resin composite to caries-affected dentin after remineralization by different remineralizing agents: An in vitro study.","authors":"Sara Ibrahim Mohamed Fahmy, Ola Mohamed Ibrahim Fahmy, Sabry El Korashy, Mohamed Essam Mohamed Labib","doi":"10.17219/dmp/183841","DOIUrl":"https://doi.org/10.17219/dmp/183841","url":null,"abstract":"<p><strong>Background: </strong>Following selective caries removal, the efficacy of bonding to the dentin substrate is questionable due to alterations in mineral content and the quality of remaining dentin, especially in deep proximal cavities.</p><p><strong>Objectives: </strong>The aim of the study was to evaluate the microtensile bond strength of resin composite to artificially demineralized dentin and sound dentin compared to demineralized dentin that underwent different remineralization protocols. Additionally, the study sought to evaluate the effect of the 2 bonding modes (total-etch/self-etch) on the applied remineralizing agent, and to analyze the failure mode.</p><p><strong>Material and methods: </strong>The study utilized 30 sound proximal molar surfaces. They were randomly divided into 5 groups based on the remineralization protocols, as follows: sound dentin as positive control (G1); artificially demineralized dentin but without surface treatment as negative control (G2); and artificially demineralized dentin surface groups with surface treatments (sodium fluoride (NaF) solution (G3), nano-hydroxyapatite (nHAp) (G4), and a combination of remineralizing agents (G5)). Different modes of application of the bonding agent (total-etch (B1) and self-etch (B2)) were implemented. Then, a nanohybrid composite was applied and light cured. The microtensile bond strength test was performed, and the failure mode was evaluated.</p><p><strong>Results: </strong>The application of the total-etch mode resulted in a statistically significant difference between microtensile bond strength values of remineralization protocols. The NaF and nHAp groups (G3 and G4) exhibited the highest values. A statistically significant difference was observed between the microtensile bond strength values of remineralization protocols in the self-etch mode. The positive control, NaF, nHAp, and combined groups (G1, G3, G4, and G5) showed the highest values. The negative control group (G2) in both bonding modes demonstrated the lowest microtensile bond strength.</p><p><strong>Conclusions: </strong>All remineralization protocols applied to demineralized dentin demonstrated an improvement in bond strength that was equivalent to sound dentin. All remineralized dentin surfaces exhibited a favorable failure mode in comparison to the negative control group.</p>","PeriodicalId":11191,"journal":{"name":"Dental and Medical Problems","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144141706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"State of oral health and the impact of regular physical activity on selected salivary parameters in young athletes in relation to the sport-specific environment.","authors":"Iwona Grzesiak-Gasek, Katarzyna Dębska-Łasut, Kamil Michalik, Marek Popowczak, Jarosław Domaradzki","doi":"10.17219/dmp/187969","DOIUrl":"https://doi.org/10.17219/dmp/187969","url":null,"abstract":"<p><strong>Background: </strong>Poor oral health is correlated with participation in various sports and has a significant impact on athletes' quality of life (QoL).</p><p><strong>Objectives: </strong>The aim of the present study was to evaluate oral health and selected salivary parameters in young athletes in relation to the environment of the performed sport.</p><p><strong>Material and methods: </strong>Sixty adolescents aged 12-15 years (mean age: 13.0 ±0.5 years), including 30 competitive swimmers and 30 competitive basketball players, participated in the study. The following indices were calculated: the number of teeth affected by caries - decayed, missing and filled teeth (DMFT); and the simplified oral hygiene index (OHI-S). Saliva samples were collected from all subjects before and after the training. The saliva flow rate (V), pH, buffer capacity, and calcium (Ca) level, as well as salivary alpha-amylase (sAA) and salivary peroxidase (sPO) concentrations, were measured. In addition, the athletes rated the intensity of the training session using Foster's rating of perceived exertion (RPE) 0-10 scale.</p><p><strong>Results: </strong>The mean DMFT score was 4.53 ±3.54 in the swimmers and 3.43 ±2.45 in the basketball players. The mean OHI-S score in the swimmers was 0.73 ±0.58, which was significantly higher than in the case of the basketball players (0.34 ±0.37). Some fluctuations in the salivary parameters were noticed in the swimmers vs. the basketball players, which was related to the type of training. When comparing the swimmers with the basketball players after the training, a significantly lower Ca level was observed in the latter group. However, when comparing post-training changes in the salivary parameters with regard to the pre-training values, significant decreases in V and increases in pH were observed in both groups. After the training, significant increases in the Ca level and the sAA concentration were found in the swimmers. The average RPE score was 4.96 ±2.16 in the swimmers vs. 5.13 ±2.02 in the basketball players. Most swimmers perceived the training as 'somewhat hard' or 'hard', and so did the basketball players.</p><p><strong>Conclusions: </strong>While the data showed no significant differences in DMFT between the groups, the basketball players presented significantly better oral hygiene in comparison with the swimmers. The data suggests that the salivary V and pH, and the levels of Ca and sAA are associated with the swimming training session, whereas V and pH are also associated with the basketball training session. The regression model showed that the sAA concentration could be a predictor of OHl-S, and that the salivary V, pH, buffer capacity, and Ca level could be predictors of the effort rating among swimmers. Also, pH could be a predictor of DMFT in basketball players.</p>","PeriodicalId":11191,"journal":{"name":"Dental and Medical Problems","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143982715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of oral hygiene knowledge and health-promoting behaviors among adults in the Masovian Voivodeship, Poland: A cross-sectional survey study.","authors":"Ewa Rusyan, Mariusz Panczyk, Zuzanna Jończyk, Filip Budnik, Karolina Zalisz, Agnieszka Mielczarek","doi":"10.17219/dmp/194167","DOIUrl":"https://doi.org/10.17219/dmp/194167","url":null,"abstract":"<p><strong>Background: </strong>The examination of pro-health behaviors is important in the assessment of factors that influence the health of the population. Despite a constant increase in pro-health awareness observed within Polish society, the epidemiological picture of adult oral health remains unsatisfactory.</p><p><strong>Objectives: </strong>The aim of the study was to assess the level of knowledge of the study population regarding the prevention of caries, the role of fluoride compounds, and hygiene habits.</p><p><strong>Material and methods: </strong>A quantitative cross-sectional methodology was employed in the study. A specially designed anonymous survey was used to ensure the confidentiality of participants and to encourage truthful responses. The data was collected over a 5-month period using computer-assisted web interviewing (CAWI) with a Google Forms survey. The link to the survey was shared in public groups and on social media platforms, ensuring the collection of a diverse sample. Submitted surveys were cataloged and de-identified prior to analysis.</p><p><strong>Results: </strong>The final sample size of the study was 643 participants. In the present study, only 95 respondents (14.77%) demonstrated sufficient knowledge about oral hygiene and declared behaviors that align with recommended practices. Factors such as place of residence, education and income did not have a statistically significant effect on the level of health awareness in relation to the preferred health attitude of the \"ideal patient\". The study revealed a lack of knowledge regarding the role of fluoride in caries prevention, with some individuals considering it harmful and refraining from using fluoride toothpaste. Approximately 20% of the surveyed population lacked awareness of the presence of fluoride in their toothpaste. These observations were comparable across both rural and urban areas.</p><p><strong>Conclusions: </strong>The present study indicates insufficient knowledge regarding oral health among the study population. It is necessary to introduce more comprehensive oral health education programs targeted at the adult population of Poland.</p>","PeriodicalId":11191,"journal":{"name":"Dental and Medical Problems","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143982799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of the contamination and cleaning methods on the tensile bond strength of the polyetheretherketone restorative material cemented with dual-cure resin cement.","authors":"Iman Moheb Ibrahim, Ahmed Ezzat Sabet, Marwa Wahsh, Fatma Adel Mohamed Ahmed","doi":"10.17219/dmp/163128","DOIUrl":"https://doi.org/10.17219/dmp/163128","url":null,"abstract":"<p><strong>Background: </strong>These days, computer-aided design/computer-aided manufacturing (CAD/CAM) resinbased materials are being used daily in clinical practice for restorations in prosthetic dentistry. In comparison with ceramic materials, they are characterized by better stress distribution and decreased abrasion of the enamel of the opposing teeth. Consequently, they have been applied as alternative materials to ceramics in various dental restorations.</p><p><strong>Objectives: </strong>The contamination of the indirect restorative material, which occurs at the clinical and dental laboratory stages, might deteriorate the bonding strength. The ideal surface treatment of the novel polyetheretherketone (PEEK) material for decontamination is yet unknown. The present study was conducted to evaluate the tensile bond strength (TBS) between PEEK and dual-cure self-adhesive resin cement, and determine the effect of contaminants, like temporary cement, artificial saliva and a fit checker, as well as the cleaning methods, like ultrasonic cleaning, phosphoric acid etching and universal cleaning paste (Ivoclean), on the bond.</p><p><strong>Material and methods: </strong>Eighty PEEK disks were milled, having the final dimensions of 12 mm × 4 mm. The specimens were air-abraded with 50-micrometer aluminum oxide particles at a pressure of 2.8 bar for 15 s at a fixed distance of 10 mm, and then divided into 4 groups according to the contaminant used: temporary cement; artificial saliva; a fit checker; and a control group with no contamination. Furthermore, the first 3 groups were subsequently subdivided into 3 subgroups each according to the cleaning method applied: ultrasonic cleaning; phosphoric acid etching; and universal cleaning paste Ivoclean. The bonding of the specimens was done using dual-cure self-adhesive resin cement. The TBS of the different groups and subgroups was then measured at a crosshead speed of 2 mm/min in a universal testing machine (UTM), using a special test configuration.</p><p><strong>Results: </strong>There was a significant interaction between both tested variables (the contamination and cleaning methods) (p < 0.001). The samples contaminated with artificial saliva showed a significantly higher TBS value than the samples subjected to other contaminants (p = 0.005). For the samples contaminated with temporary cement and a fit checker, there were significant differences between the different cleaning methods, with ultrasonic cleaning providing the highest TBS values, followed by phosphoric acid etching, and finally Ivoclean (p < 0.001).</p><p><strong>Conclusions: </strong>Under the conditions of the present study, temporary cement and a fit checker adversely affected the TBS of PEEK, and ultrasonic cleaning was most effective for decontamination.</p>","PeriodicalId":11191,"journal":{"name":"Dental and Medical Problems","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143973160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sex difference in the hyoid bone position in adults with obstructive sleep apnea: Systematic review and meta-analysis.","authors":"Diana Graizel-Armoni, Tzvika Greenbaum, Tamar Brosh, Ron Kedem, Alona Emodi-Perlman","doi":"10.17219/dmp/192096","DOIUrl":"https://doi.org/10.17219/dmp/192096","url":null,"abstract":"<p><p>The hyoid bone exhibits potential sex-based variations and is implicated in the severity of obstructive sleep apnea (OSA). Sex-specific comparisons are lacking. The present meta-analysis aimed to address this gap.The Embase, MEDLINE and Web of Science databases were searched. The inclusion criteria were as follows: studies that reported the measurements of the hyoid bone-mandibular plane distance (HMP), demonstrated in cephalometric imaging (CEPH) in patients with OSA of both sexes, involving a polysomnography (PSG) examination with the apnea-hypopnea index (AHI), as well as information on the body mass index (BMI) and age. The exclusion criteria comprised reviews, meta-analyses and case reports. The risk of bias was assessed with the use of the Scottish Intercollegiate Guidelines Network (SIGN) checklist. Statistical analysis was conducted using Comprehensive Meta-Analysis software (CMA) and IBM SPSS Statistics for Windows.Seven observational studies with 718 adult patients (515 males and 203 females) met the inclusion criteria. The mean HMP value was 20.5 ±3.8 mm, with a significant difference observed between males (21.6 ±3.3 mm) and females (17.8 ±3.7 mm) (p < 0.00001). The correlation between HMP and AHI was significantly stronger in females - 2.5 times higher than in males (r = 0.423 vs. r = 0.167, respectively).Although a standard range of the hyoid bone position for healthy adults and elderly individuals is currently lacking, sex significantly affects the anatomical variation of the hyoid mandibular position in patients with OSA. It is crucial to identify distinct OSA endotypes by sex to ensure accurate diagnosis and treatment planning, which could lead to sex-specific therapeutic strategies.</p>","PeriodicalId":11191,"journal":{"name":"Dental and Medical Problems","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143962400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anterior Stafne bone defect: Literature review and a case series.","authors":"Dominika Kopciuch, Marzena Dominiak, Ingrid Różyło-Kalinowska, Paweł Kubasiewicz-Ross","doi":"10.17219/dmp/188781","DOIUrl":"https://doi.org/10.17219/dmp/188781","url":null,"abstract":"<p><p>The study objective was to review the literature and to present 3 cases of the anterior Stafne bone defect (SBD). The electronic databases - MEDLINE via PubMed and Google Scholar - were searched by 2 independent authors, who retrieved 20 articles concerning this pathology. The Stafne bone defect is an asymptomatic bone lesion, diagnosed mostly incidentally through radiological imaging, typically located in the lateral section of the mandible. The anterior SBD is exceedingly rarely observed. So far, less than 40 cases have been described. The hypothesis of the formation of a bone cavity in connection with the sublingual salivary gland has not been confirmed in the literature, considering other tissue structures present within the lesion, including lymphoid or adipose tissues. The anterior variant of SBD can be mistaken for other lesions, considering its atypical location and lower incidence rate. In most cases, it does not require any treatment and the 'wait-and-see' strategy is adopted. In the present study, 2 cases of twochamber and 1 case of single-chamber anterior SBDs were presented. Their course was asymptomatic; however, in 2 cases, increased tension of the suprahyoid muscles on physical examination was reported. The cone-beam computed tomography (CBCT) imaging was employed in each case. There was no need for biopsy, and the monitoring of the lesion was established in each reported case.</p>","PeriodicalId":11191,"journal":{"name":"Dental and Medical Problems","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143794395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of potential risk factors for the development of medication-related osteonecrosis of the jaw.","authors":"Monika Bełch, Grażyna Wyszyńska-Pawelec, Mariusz Szuta, Justyna Hajto-Bryk, Piotr Michalak, Jan Zapała, Joanna Zarzecka","doi":"10.17219/dmp/195758","DOIUrl":"https://doi.org/10.17219/dmp/195758","url":null,"abstract":"<p><strong>Background: </strong>Medication-related osteonecrosis of the jaw (MRONJ) is an undesirable consequence of the action of drugs, involving the exposure of bones in a patient not exposed to ionizing radiation in the head and neck area. The occurrence of MRONJ is associated with therapy with anti-resorptive drugs (bisphosphonates), receptor activator of nuclear factor-kappa B ligand (RANKL) drugs, e.g., denosumab, and anti-angiogenic drugs that are vascular endothelial growth factor (VEGF) inhibitors.</p><p><strong>Objectives: </strong>The aim of the present study was to identify risk factors for the development of MRONJ.</p><p><strong>Material and methods: </strong>The medical records of patients hospitalized in the years 2015-2022 in the Department of Maxillofacial Surgery of the Ludwik Rydygier Specialist Hospital in Krakow and the Clinical Department of Maxillofacial Surgery of University Hospital in Krakow, Poland, were retrospectively analyzed. The study included patients treated for MRONJ in the maxilla and/or the mandible with a history of past bisphosphonate therapy. Patients with symptoms of osteonecrosis after radiotherapy of the head and neck region were excluded from the study. The patients' demographic data, comorbidities, the initial disease treated with bisphosphonates, the route of drug administration, the type of causative dental surgery, the area of necrosis, and the MRONJ class according to the American Association of Oral and Maxillofacial Surgeons (AAOMS) criteria were analyzed.</p><p><strong>Results: </strong>The investigated group consisted of 29 females and 14 males. Common comorbidities were anemia, diabetes mellitus (DM) and hypertension. Bisphosphonates were used in 30 patients (69.8%) treated for cancer, in 10 patients (23.3%) treated for osteoporosis and in 2 patients (4.7%) treated for osteopenia. In the majority of cases (n = 19; 44.2%), bisphosphonates were administrated intravenously. Medication-related osteonecrosis of the jaw was diagnosed in the mandible in 25 cases (58.1%) and in 18 (41.9%) - in the maxilla. In 14 patients (32.6%), necrosis was initiated by a dental procedure, most often tooth extraction.</p><p><strong>Conclusions: </strong>Risk factors for the development of MRONJ in patients treated with bisphosphonates include the intravenous route of drug administration, past intraoral surgery, female gender, and senior age.</p>","PeriodicalId":11191,"journal":{"name":"Dental and Medical Problems","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143751554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effectiveness of heartfulness meditation in the management of recurrent aphthous ulcers.","authors":"Madhulika Yadav, Neha Rathore, Ashish Katiyar, Ravish Ahuja, Amogh Tanwar, Sahana Shivkumar, Vincenzo Ronsivalle, Marco Cicciù, Giuseppe Minervini","doi":"10.17219/dmp/168912","DOIUrl":"https://doi.org/10.17219/dmp/168912","url":null,"abstract":"<p><strong>Background: </strong>Recurrent aphthous ulcers (RAUs) are the most prevalent form of painful oral mucosal disorder. Conventional treatment for RAUs involves the administration of tetracycline, which has been shown to alleviate clinical signs and symptoms. However, this medication has been associated with a number of adverse effects. Heartfulness meditation (HM) has been shown to facilitate natural healing of ulcers without complications by developing a compassionate connection with oneself.</p><p><strong>Objectives: </strong>The aim of the study was to evaluate the effectiveness of HM in the management of RAUs and to compare its effects with those of conventional treatment.</p><p><strong>Material and methods: </strong>A parallel study was conducted among 54 patients affected with RAUs. The patients were divided into 3 groups: group 1 - HM; group 2 - tetracycline treatment; and group 3 - combination of tetracycline treatment and HM. The evaluated outcomes included pain levels and the duration of ulceration. One-way analysis of variance (ANOVA) and paired t-test were applied to identify significant differences between the groups.</p><p><strong>Results: </strong>A substantial decrease in pain intensity was observed during HM. The group that engaged in meditation alongside tetracycline treatment exhibited the lowest pain scores. At follow-up intervals of 3, 5 and 7 days, pain levels between the tetracycline group and the HM group were similar. The group that received a combination of tetracycline treatment and HM demonstrated the shortest duration of ulcers (7.167 ±0.383 days).</p><p><strong>Conclusions: </strong>The study concluded that when HM was practiced in addition to tetracycline treatment, it demonstrated superior efficacy in reducing pain at the shortest time. Furthermore, the study noted a reduction in the duration of ulcers when HM was used in conjunction with tetracycline, as compared to the practice of HM alone.</p>","PeriodicalId":11191,"journal":{"name":"Dental and Medical Problems","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143729090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of EDTA, fumaric acid, and the chitosan solutions prepared with distilled water and acetic acid on dentin microhardness and tubular penetration: An in vitro study.","authors":"Esma Sariçam, Hanife Altınışık, Neslihan Bulak, Berna Güven, Sabiha Zeynep Yurdagül, Gülin Amasya","doi":"10.17219/dmp/167467","DOIUrl":"https://doi.org/10.17219/dmp/167467","url":null,"abstract":"<p><strong>Background: </strong>Chitosan prepared with acetic acid is commonly used as an endodontic irrigant. However, the chitosan solution prepared with distilled water has not been evaluated for endodontic usage.</p><p><strong>Objectives: </strong>The present study aimed to compare the effects of ethylenediaminetetraacetic acid (EDTA), fumaric acid, and the chitosan solutions prepared with distilled water (C-DW) and acetic acid (C-AA) on dentin microhardness and dentinal tubule penetration.</p><p><strong>Material and methods: </strong>Eighty maxillary central incisors were endodontically instrumented and randomly divided into 2 main groups (n = 40) for the evaluation of dentin microhardness and tubular penetration, with 4 subgroups in each main group (n = 10) according to the final irrigation solutions used (EDTA, fumaric acid, C-DW, and C-AA). The C-AA solution was prepared by diluting medium-molecularweight chitosan in acetic acid. The C-DW solution was prepared with distilled water and chitosan ammonium salts, which were synthesized using trichloroacetic acid and low-molecular-weight chitosan. After irrigation, the roots were sectioned horizontally 2 mm (the apical third) and 5 mm (the middle third) from the apex. The microhardness measurements were taken at depths of 500 μm and 1,000 μm from the canal lumen. The sections were examined for tubular penetration using confocal laser scanning microscopy. The data was analyzed using the analysis of variance (ANOVA), with a significance level set at p < 0.05.</p><p><strong>Results: </strong>The microhardness values were statistically similar at either depth for each third (p > 0.05), except for the 1,000-μm depth in the apical third, where the use of the C-AA solution resulted in lower microhardness as compared to fumaric acid (p < 0.05). No significant differences were observed in tubular penetration with regard to each third (p > 0.05).</p><p><strong>Conclusions: </strong>All solutions showed a similar penetration ability in each third. At the 1,000-μm depth in the apical third, the fumaric acid solution provided a higher microhardness value than the C-AA solution.</p>","PeriodicalId":11191,"journal":{"name":"Dental and Medical Problems","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143729096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of selected parameters of reparative dentin after direct pulp capping with MTA Repair HP in human teeth, using CBCT and micro-CT.","authors":"Mirona Palczewska-Komsa, Adam Puszkarz, Bartosz Dalewski, Kinga Kaczor-Wiankowska, Ewa Sobolewska, Łukasz Pałka, Magdalena Gębska, Alicja Nowicka","doi":"10.17219/dmp/189747","DOIUrl":"https://doi.org/10.17219/dmp/189747","url":null,"abstract":"<p><strong>Background: </strong>The biomimetic regeneration of the pulp-dentin complex is a modern approach involving the application of a bioactive substance. Bioactive substances (e.g., cement or stem cells) have been reported to be able to control the signaling and differentiation of the pulp cells, thus limiting the inflammatory reactions and enabling the repair and regeneration of tissues. One of such materials is MTA Repair HP (MTA HP) - a type of mineral trioxide aggregate (MTA) material characterized by high plasticity, composed of hydrophilic particles of mineral oxides.</p><p><strong>Objectives: </strong>The aim of the present study was to analyze the reaction of the pulp-dentin complex of human teeth to MTA HP using 2 radiological techniques - cone-beam computed tomography (CBCT) and micro-computed tomography (micro-CT).</p><p><strong>Material and methods: </strong>In the study, 6 caries-free, intact maxillary and mandibular third molars or premolars from 6 patients aged 30-37 years were analyzed. The teeth were scheduled to be extracted for orthodontic or surgical reasons.</p><p><strong>Results: </strong>No statistically significant differences in the examined parameters of the tertiary dentin were observed in the CBCT and micro-CT images (p < 0.05).</p><p><strong>Conclusions: </strong>The CBCT technique, similarly to micro-CT, proved to be effective in identifying and assessing the tertiary dentin. Furthermore, CBCT has the advantage of usability in clinical settings. Knowledge on the parameters of reparative dentin identified with radiological techniques is still insufficient, and further research is recommended.</p>","PeriodicalId":11191,"journal":{"name":"Dental and Medical Problems","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}