Journal of dentistry (Shiraz, Iran)最新文献

{"title":"Jaw Fibro-Osseous Lesions: Use of a Predictive Index in Grading Probable Malignant Changes and a Review of Cases.","authors":"Akindayo Olufunto Akinyamoju, Seyi John Akinloye, Robinson Obos Okiti, Bukola Folasade Adeyemi","doi":"10.30476/dentjods.2023.96389.1935","DOIUrl":"10.30476/dentjods.2023.96389.1935","url":null,"abstract":"<p><strong>Statement of the problem: </strong>Fibro-osseous lesions (FLs), may rarely exhibit malignant features likewise undergo malignant transformation. Awareness of these features can assist in screening for potentially malignant cases and identifying low-grade central osteogenic sarcoma (LGCOS) that may mimic FLs.</p><p><strong>Purpose: </strong>The objective of this study was to determine the usability of an index in predicting malignant changes in jaw FLs.</p><p><strong>Materials and method: </strong>This was a retrospective study where hematoxylin and eosin (H&E) slides and archival records of fibrous dysplasia (FD) and ossifying fibroma (OF) cases were reviewed. The sections were assessed for permeation of marrow spaces, stromal growth pattern, cytologic atypia, mitotic activity, and pattern of bone growth, which are parameters for diagnosing LGCOS. The predictive histologic index of malignancy (PHIM) was determined by a sum of the scores and graded as 0=nil, 1=low, 2 & 3=moderate, and 4 & 5=high. Data were presented using descriptive analysis.</p><p><strong>Results: </strong>Ninety-three cases of FLs met the inclusion criteria, consisting of 40(43%) cases of FD and 53(57%) cases of OF. The peak age of presentation for FD and OF was 2^nd and 3^rd decade. There was a female preponderance of 1:1.6. The maxilla was the most common site affected by FD, while the mandible was most commonly affected by OF. For FD cases, the PHIM was moderate in 10(25%) cases and low in 21(52.5%) cases. Similarly, for OF cases, 30(56.6%) cases had low grade PHIM while 10(17%) cases had moderate grade PHIM.</p><p><strong>Conclusion: </strong>The PHIM depicted low to moderate malignancy grade in some of the cases studied. Follow up studies would be necessary to assess the PHIM.</p>","PeriodicalId":73702,"journal":{"name":"Journal of dentistry (Shiraz, Iran)","volume":"25 1","pages":"32-38"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963869/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140308122","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":"Efficacy of Laser Therapy in Trigeminal Neuralgia: a Systematic Review.","authors":"Sara Haghighat, Fahimeh Rezazadeh, Hossein Sedarat, Amir Tabesh, Elham Tayebi Khorami, Kiana Aghasadeghi","doi":"10.30476/dentjods.2023.95758.1889","DOIUrl":"10.30476/dentjods.2023.95758.1889","url":null,"abstract":"<p><strong>Statement of the problem: </strong>Trigeminal neuralgia is the most common and disabling type of neuralgia in craniofacial region. Because of adverse effects of first and second lines of treatment, new modalities including laser therapy have been investigated for treatment of trigeminal neuralgia.</p><p><strong>Purpose: </strong>The aim of this study was to review the effect of laser in trigeminal neuralgia. PubMed, Scopus, Web of Science, Science Direct, and Embase databases from December 1983 to August 2020 were searched using keywords \"trigeminal neuralgia\" and \"laser\". Our inclusion criteria were interventional studies with a randomized clinical trial design, which used laser for treatment of trigeminal neuralgia.</p><p><strong>Materials and method: </strong>In this systematic review, a total of 269 records were identified through systematically searching aforementioned databases among which, 30 were from PubMed and 44 were from Web of Science. A total of 111 records were duplicated and were therefore removed.</p><p><strong>Results: </strong>Only 17 records were considered relevant after reading title and abstracts. After reading full texts of the articles, 13 met the eligibility criteria and were included in our review.</p><p><strong>Conclusion: </strong>This review revealed that low-level laser therapy reduces pain in trigeminal neuralgia specially diode lasers, although there are no standardized protocols for laser procedures.</p>","PeriodicalId":73702,"journal":{"name":"Journal of dentistry (Shiraz, Iran)","volume":"25 1","pages":"17-25"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963861/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140308118","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":"Investigating the Effective Factors on the Acceptance of Teleorthodontic Technology Based on the Technology Acceptance Model 3 (TAM3).","authors":"Fatemeh Yazdanpanahi, Mehraban Shahi, Mehrdad Vossoughi, Nasrin Davaridolatabadi","doi":"10.30476/dentjods.2023.96932.1977","DOIUrl":"10.30476/dentjods.2023.96932.1977","url":null,"abstract":"<p><strong>Statement of the problem: </strong>Health information technology is used in dentistry worldwide. Despite the limited specialized resources for providing orthodontic treatment in Iran, the need to examine the technology acceptance model (TAM) seems necessary and is a significant step in the successful acceptance of teleorthodontic technology.</p><p><strong>Purpose: </strong>The present study has identified and investigated the factors affecting the acceptance of teleorthodontic technology among orthodontists based on the TAM3 with the aim of successful implementation and deployment of this technology.</p><p><strong>Materials and method: </strong>In this descriptive-analytical research, 300 Iranian orthodontists who were members of the Iranian Orthodontic Association were selected by census sampling. The data was gathered through a modified and accommodated questionnaire called the acceptance model 3. The validity was confirmed. Moreover, the reliability was calculated based on Cronbach's alpha, which was equal to 0.870. Multiple linear regression analysis was also utilized to investigate the relationships between dependent, independent, and mediator variables. Besides, the final model was designed by the Amos software.</p><p><strong>Results: </strong>The results of 251 orthodontic specialists proved that subjective norm, job relevance, output quality, results in demonstrability, and job relevance on output quality could significantly affect perceived usefulness. Similarly, the perception of external control was identified to have a significant influence on perceived ease of use. On the other hand, the perceived usefulness does not play a mediating role between perception and subjective norm. Furthermore, perceived usefulness was confirmed as a mediating factor in relationship to both perceived ease of use and behavioral intention.</p><p><strong>Conclusion: </strong>The findings of the present study revealed valuable scientific evidence to identify and apply the key factors affecting the acceptance and use of modern teleorthodontic technology in Iran. Besides, the structure of the TAM3 was recognized as fruitful and worthwhile for predicting the acceptance of this new technology and also in identifying key effective factors.</p>","PeriodicalId":73702,"journal":{"name":"Journal of dentistry (Shiraz, Iran)","volume":"25 1","pages":"68-76"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963866/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140308121","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":"<i>Chenopodium Ambrosioides</i> Linn Mitigates Bone Loss in Rats with Periodontitis.","authors":"Diego Thiers Oliveira Carneiro, Michael Douglas da Silva, Karla Vanessa Pinto Vasconcelos, Romero Dias, Vanessa Costa, Raquel Felipe Vasconcelos, Bárbara Carneiro, Gisele Barreto, Mirna Marques, Hellíada Chaves Vasconcelos, Howard Lopes Ribeiro Júnior, Jonas Nogueira Ferreira Maciel Gusmão, Helson da Silveira, Renata Leitão, Gerly Anne Brito, Karuza Maria Alves Pereira, Delane Viana Gondim, Paula Goes","doi":"10.30476/dentjods.2023.95767.1891","DOIUrl":"10.30476/dentjods.2023.95767.1891","url":null,"abstract":"<p><strong>Statement of the problem: </strong>Periodontitis is an inflammatory disease that causes bone loss. Some patients do not respond well to the classic treatment and need therapies that minimize bone loss, the main sequel of the disease. <i>Chenopodium ambrosioides</i> L. has stood out due to its anti-inflammatory and anti-oxidative activities. However, no study has yet investigated its effect on periodontitis.</p><p><strong>Purpose: </strong>This study aimed to evaluate the bone protective effect of <i>Chenopodium ambrosioides</i> L. (CAL) extract on ligature-induced periodontitis model in rats.</p><p><strong>Materials and method: </strong>For this, a pre-clinical assay was performed, using male Wistar rats divided into 3 groups: Naive (N) (n=6), not submitted to any procedure; Saline (SAL) (n=6), submitted to ligature-induced periodontitis and receiving 2 ml/kg of 0.9% saline solution; and CAL extract, which was subdivided into 3 subgroups (n=6/subgroup) receiving the CAL at 3 (CAL3), 10 (CAL10) or 30 mg/kg (CAL30). All agents were given, by oral gavage, 30 min before periodontitis induction and daily until euthanasia (11^th day). By then, maxillae were removed for macroscopic, histological, and histometric analyses. Kidneys, liver, and stomach were collected to evaluate the safety of CAL extract. High-performance liquid chromatography (HPLC) assay was used to investigate the flavonoid content in the extract.</p><p><strong>Results: </strong><i>Chenopodium ambrosioides</i> L. extract at 30mg/kg showed a reduction by 58% in bone loss marked by an increase (+35%) in the number of osteoblasts and a reduction (-51%) on the number of osteoclasts (<i>p</i>< 0.05). No significant alteration in the liver, kidney, or stomach was seen. Rutin was the main flavonoid found.</p><p><strong>Conclusion: </strong>In summary, it was observed that <i>Chenopodium ambrosioides</i> L. extract has shown important anti-inflammatory and bone anabolic and anti-resorptive properties without causing toxicity in the main organs. Rutin, as the main flavonoid of the extract, seems to be responsible for the beneficial effect of this agent.</p>","PeriodicalId":73702,"journal":{"name":"Journal of dentistry (Shiraz, Iran)","volume":"25 1","pages":"59-67"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963862/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140308116","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 Causes of Dental Implant Migration into the Maxillary Sinus: A Case Series Study from 25 Years of Experience.","authors":"Hamid Mahmood Hashemi, Saba Mohammadi, Farnoosh Razmara","doi":"10.30476/dentjods.2023.95807.1898","DOIUrl":"10.30476/dentjods.2023.95807.1898","url":null,"abstract":"<p><p>The use of dental implants to restore edentulous jaws has become commonplace. Usually, in the maxilla, following a tooth extraction, the height of alveolar bone decreases. This alteration in bone increases the risk of implants migrating into the sinus. In general, Caldwell-Luc and endoscopic surgery are performed to retrieve dental implants. In this case series, we collected data from 39 patients who had the complication of implant displacement within the maxillary sinus for 25 years. All the implants were removed using the Caldwell-Luc technique. Implant migration happened following functional loading, during the prosthetic procedure, due to lack of osseointegration in 3 patients, and during implant placement into the fresh socket in 3 patients. In the remaining cases, migration occurred preoperatively or postoperatively and prior to implant loading. Insufficient bone quantity is sometimes causing the implant to migrate to the maxillary sinus. In case of minimal bone height, a sinus lift before implant placement should be conducted. Retrieval of an implant pushed inside the maxillary antrum using the Caldwell Luc approach proved to be a reliable technique.</p>","PeriodicalId":73702,"journal":{"name":"Journal of dentistry (Shiraz, Iran)","volume":"25 1","pages":"86-90"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963871/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140308134","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 Granular Cell Tumor: A Case Report with Emphasis on Pseudoepitheliomatous Hyperplasia in Oral Lesions.","authors":"Saede Atarbashi-Moghadam, Ali Lotfi, Parsa Eftekhari-Moghadam","doi":"10.30476/dentjods.2023.98784.2108","DOIUrl":"10.30476/dentjods.2023.98784.2108","url":null,"abstract":"<p><p>A granular cell tumor (GCT) is an unusual benign mesenchymal neoplasm with Schwann cells origin. The most common site is the dorsum of the tongue. It has a striking tendency to occur in females and is more frequent in adult patients. GCT typically shows an asymptomatic, slow-growing, single nodule. Histopathologically, it reveals a proliferation of polygonal cells with granular cytoplasm penetrating the adjacent muscles. In some cases, the overlying epithelium demonstrates pseudoepitheliomatous hyperplasia (PEH), which can complicate its precise diagnosis and may mimic squamous cell carcinoma (SCC). This paper presents a 58-year-old woman with a chief complaint of painless mass on the dorsal of the tongue for two years. The lesion was pink and circumscribed with firm consistency measuring 1×1cm. The surface of the lesion was intact. Microscopic examination demonstrated unencapsulated sheets of large, polygonal cells with abundant eosinophilic, granular cytoplasm, and vesicular nuclei. The overlying epithelium showed florid PEH and keratin pearl formation. S100 protein was positive diffusely. The diagnosis of oral GCT was made. Though GCT is a non-aggressive lesion, it may be confused with SCC due to florid PEH and keratin pearl formation. Although PEH is a neglected topic among oral pathologists, it is of great importance in the field of research. Diagnosis can sometimes be problematic because they mimic other lesions. The pathogenesis of PEH is still uncertain. Therefore, familiarity with these characteristics and determining the cause of the PEH leads to correct treatment. This article intends to raise the insight of oral pathologists about PEH in oral lesions.</p>","PeriodicalId":73702,"journal":{"name":"Journal of dentistry (Shiraz, Iran)","volume":"25 1","pages":"91-94"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963868/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140308132","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 <i>Staphylococcus Aureus</i> and <i>Pseudomonas Aeruginosa</i> in Saliva of Patients with Acute Myeloid Leukemia.","authors":"Jannan Ghapanchi, Hanieh Farahmand, Abdollah Bazargani, Seyed Omid Reza Zekavat, Fatemeh Lavaee, Amir Hossein Ojaghi","doi":"10.30476/dentjods.2023.97098.1989","DOIUrl":"10.30476/dentjods.2023.97098.1989","url":null,"abstract":"<p><strong>​statement of the problem: </strong>Patients with leukemia are prone to infectious and often life-threatening complications. Evidence suggests that a specific oral microbiota may contribute to septicemia, which can delay antineoplastic treatment, compromise treatment efficacy, or even endanger patients' lives.</p><p><strong>Purpose: </strong>This study investigated the prevalence of <i>Staphylococcus aureus</i> and <i>Pseudomonas aeruginosa</i> in the saliva of patients with acute myeloid leukemia who were candidates for bone marrow transplantation.</p><p><strong>Materials and method: </strong>This cross-sectional study was conducted in 2019 in the Hematology-Oncology Department of Namazi Hospital, Shiraz University of Medical Sciences. The study included 28 patients with acute myeloid leukemia eligible for bone marrow transplantation as the case group and age- and sex-matched healthy individuals as the control group. Unstimulated saliva samples were collected to determine the frequency of <i>Staphylococcus aureus</i> and <i>Pseudomonas aeruginosa</i>. Data were analyzed using SPSS version 18, the chi-square test, and the independent t-test.</p><p><strong>Results: </strong>In the patients with acute myeloid leukemia, 26 (86%) were positive for <i>Staph-ylococcus aureus</i> and 18 (60%) were positive for <i>Pseudomonas aeruginosa</i>. In the healthy group, 11 (22.9%) were positive for <i>Staphylococcus aureus</i> and 3 (6.2%) were positive for <i>Pseudomonas aeruginosa</i>. The frequency of <i>Pseudomonas aeruginosa</i> and <i>Staphylococcus aureus</i> in the saliva samples of patients with acute myeloid leukemia was significantly higher than in the healthy control subjects (<i>p</i> value < 0.05). Chi-square test showed no significant association between age and the frequency of bacteria (<i>p</i> value= 0.27).</p><p><strong>Conclusion: </strong>In the current study, the frequency of <i>Staphylococcus aureus</i> and <i>Pseudomonas aeruginosa</i> in the saliva of patients with acute myeloid leukemia was higher than in the healthy control group.</p>","PeriodicalId":73702,"journal":{"name":"Journal of dentistry (Shiraz, Iran)","volume":"25 1","pages":"45-50"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963863/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140308119","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":"Histopathologic Evaluation of Periapical Radiolucencies Clinico-Radiographically Diagnosed as Endodontic Lesions: A Retrospective Analysis.","authors":"Saede Atarbashi-Moghadam, Mehrdad Azar, Shaghayegheh Dowdani","doi":"10.30476/dentjods.2023.96819.1967","DOIUrl":"10.30476/dentjods.2023.96819.1967","url":null,"abstract":"<p><strong>Statement of the problem: </strong>Periapical cyst and granuloma are inflammatory endodontic lesions. Periapical granuloma usually heals spontaneously after endodontic treatment; however, periapical cyst mostly needs to be removed via surgical approaches. Although some clinicians believe that microscopic examination of periapical lesions is unnecessary, it is proved that some of them has non-endodontic nature that need critical consideration.</p><p><strong>Purpose: </strong>The purpose of this study was to assess the disagreement between clinico-radiographic and microscopic diagnosis of periapical cysts and granulomas in a major center of oral pathology service in Iran.</p><p><strong>Materials and method: </strong>In this retrospective, descriptive cross-sectional study, the archives of the oral and maxillofacial pathology department of Shahid Beheshti University of Medical Sciences served as the source of the material during an 18-year-period for this retrospective, descriptive cross-sectional study. The reports of all patients whose initial clinical diagnosis was a periapical cyst/granuloma were extracted.</p><p><strong>Results: </strong> In the present study, 474 cases were diagnosed with a periapical cyst/granuloma clinico-radiographically, of which 61 cases (12.86%) received a microscopic diagnosis of a non-endodontic pathology. The most frequent lesion was odontogenic keratocyst (n= 12, 19.67%) followed by infected odontogenic cyst (n= 12, 19.67%). About 21.31% of diagnoses were non-cystic lesions and 4.9% were malignancies. The most odontogenic tumors that were diagnosed as periapical cyst/granuloma in clinico-radiography were the ameloblastoma variants (n= 4, 6.55%).</p><p><strong>Conclusion: </strong> A wide variety of microscopic diagnoses, including aggressive lesions such as ameloblastoma, as well as other malignant lesions was noted in this study. These misdiagnoses can lead to an inappropriate treatment plan. It is important to microscopically examine all lesions removed from the jaw.</p>","PeriodicalId":73702,"journal":{"name":"Journal of dentistry (Shiraz, Iran)","volume":"25 1","pages":"39-44"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963870/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140308120","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":"Time-Dependent Antibacterial Effects of <i>Citrullus Colocynthis</i> Seed Extract Compared to Calcium Hydroxide in Teeth Infected with <i>Enterococcus Faecalis</i>.","authors":"Yasamin Ghahramani, Najme Mohammadi, Saman Baghaei, Negar Ghorbani Jahandizi","doi":"10.30476/dentjods.2023.97670.2026","DOIUrl":"10.30476/dentjods.2023.97670.2026","url":null,"abstract":"<p><strong>Statement of the problem: </strong>Endodontic efforts are focused on eliminating intracanal pathogens. Applying intracanal medicament for infected teeth is beneficial for achieving better antibacterial effects in endodontic treatments. Different intracanal medicaments should be assessed and compared for this purpose.</p><p><strong>Purpose: </strong>The aim of this study was to assess the antibacterial efficacy of <i>Citrullus colocynthis</i> seed extract comparing to Ca(OH)₂ on teeth contaminated with <i>Enterococcus faecalis</i>.</p><p><strong>Materials and method: </strong>In this <i>in vitro</i> study, a novel strain of <i>Enterococcus faecalis</i> (<i>Enterococcus spp.</i> ATCC 19433) yielded from the root canal treated tooth with persistent apical periodontitis. The canals of 78 human single-rooted extracted teeth were contaminated with mentioned strain and treated with <i>Citrullus colocynthis</i> essential oil and Ca(OH)₂ for 1, 7, and 14 days. To determine the chemical composition of the oils, gas chromatography-mass spectrometry (GC-MS) was applied. The percentage reduction from baseline c.f.u./mL values was estimated.</p><p><strong>Results: </strong>Oleic acid, benzoic acid, and gallic acid were the major contents of <i>Citrullus colocynthis</i> essential oil. The c.f.u./mL count decreased considerably as contact duration rose for both medicaments. After 7 days, a statistically significant difference was identified between the medicaments. <i>Citrullus colocynthis</i> showed higher antimicrobial efficacy. However, after 14 days, no substantial difference was found.</p><p><strong>Conclusion: </strong><i>Citrullus colocynthis</i> essential oil, displayed great antimicrobial efficacy against <i>Enterococcus faecalis</i> higher than Ca(OH)₂ over the first week contact period.</p>","PeriodicalId":73702,"journal":{"name":"Journal of dentistry (Shiraz, Iran)","volume":"25 1","pages":"77-85"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963867/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140308136","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 Incorporating Titanium Dioxide Nanoparticles into White Portland Cement, White Mineral Trioxide Aggregate, and Calcium Enriched Mixture Cement on the Push-out Bond Strength to Furcal Area Dentin.","authors":"Shahriar Shahi, Mohammad Samiei, Mahmoud Bahari, Hamidreza Yavari, Mona Rahbar Mahvarian","doi":"10.30476/dentjods.2023.92290.1627","DOIUrl":"10.30476/dentjods.2023.92290.1627","url":null,"abstract":"<p><strong>Statement of the problem: </strong>Bond strength of furcation repair materials is an essential factor in clinical success. Studies on the effect of adding titanium dioxide (TiO₂) nanoparticles on the push-out bond strength of commonly used endodontic cements for furcation perforation repair is limited.</p><p><strong>Purpose: </strong>This study aimed to evaluate the effect of adding TiO₂ nanoparticles to white Portland cement (PC), white mineral trioxide aggregate (MTA), and calcium enriched mixture cement (CEM) on their push-out bond strengths.</p><p><strong>Materials and method: </strong>In this <i>in vitro</i> study, 120 endodontically treated molars were assigned to six groups (n=20) based on the material used to repair the perforation. In three groups, the cements (white PC, white MTA, and CEM) were placed in pure form, and in the three remaining groups, 1 weight % of TiO₂ was added. The push-out bond strength was measured using a universal testing machine at a strain rate of 0.5 mm/min. Data were analyzed using one-way ANOVA and post hoc Games-Howell test (<i>p</i>< 0.05).</p><p><strong>Results: </strong>One-way ANOVA showed significant differences in the mean bond strength values between the six groups (<i>p</i>= 0.002). The post hoc Games-Howell test showed that the bond strengths in MTA+TiO₂ and PC+TiO₂ groups were significantly higher than those in MTA and PC groups, respectively. However, there was no significant difference in the bond strength between CEM and CEM+ TiO₂ groups.</p><p><strong>Conclusion: </strong>The incorporation of TiO₂ into MTA and PC increased their push-out bond strength. However, it did not affect the push-out bond strength of CEM cement.</p>","PeriodicalId":73702,"journal":{"name":"Journal of dentistry (Shiraz, Iran)","volume":"24 4","pages":"422-428"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10749436/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139040981","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}