Journal of Contemporary Dental Practice最新文献

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Management of Deep Caries Lesions: A Study among Dentists in the Private Sector of Casablanca, Morocco. 深龋病变的管理:在卡萨布兰卡,摩洛哥私营部门牙医的研究。
Journal of Contemporary Dental Practice Pub Date : 2024-08-01 DOI: 10.5005/jp-journals-10024-3716
Kaoutar Laslami, Soukaina El Kharroubi, Mohamed Moudrif, Ameni Marzougui, Sofia Drouri, Sihame Chemlali, Imane Benkiran
{"title":"Management of Deep Caries Lesions: A Study among Dentists in the Private Sector of Casablanca, Morocco.","authors":"Kaoutar Laslami, Soukaina El Kharroubi, Mohamed Moudrif, Ameni Marzougui, Sofia Drouri, Sihame Chemlali, Imane Benkiran","doi":"10.5005/jp-journals-10024-3716","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3716","url":null,"abstract":"<p><strong>Aim and background: </strong>To find out which management methods are preferred by dentists in the private sector of Casablanca for a deep carious lesion or a pulp exposure during carious tissue removal in adult patients.</p><p><strong>Materials and methods: </strong>A questionnaire consisting of 25 questions was sent to 300 randomly sampled dentists in Casablanca. Only specialists in conservative dentistry and endodontics and general practitioners were included. There were three clinical scenarios allowing to approach the therapy recommended by each practitioner according to the proposed pulp diagnosis, these three different scenarios were based on preoperative symptomatology: Healthy pulp, reversible pulpitis, and irreversible pulpitis. Data entry and analysis were carried out using Epi7 and the results were statistically analyzed.</p><p><strong>Results: </strong>The survey was answered by 214 dentists,145 women and 69 men. Approximately 74.3% of the respondents always establish a pulp diagnosis before carious tissue removal. Approximately 56.54% use partial carious tissue removal techniques. During pulp exposure, 79.25% of the practitioners opted, respectively, for a direct pulp capping (DPC) in the case of healthy pulp and 46.7% in the case of reversible pulpitis, while no practitioner chose DPC in the case of irreversible pulpitis. In addition, 3.31, 27.83, and 4.23% opted for pulpotomy in cases of healthy pulp, reversible and irreversible pulpitis, respectively. Glass ionomer cement (GIC) and calcium hydroxide (CH) are the materials of choice for dentists in cases of partial caries removal. In the case of DPC, dentists use CH and Biodentine™ in particular.</p><p><strong>Conclusions: </strong>Partial carious tissue removal techniques are not adopted by the majority of dentists. When faced with irreversible pulpitis, most dentists (93.33%) go directly to endodontic treatment in the case of deep carious lesion without pulp exposure. While 204 dentists (95.33%) preferred root canal treatment (RCT) too in the case of deep carious lesion with pulp exposure. The use of bioactive materials should be encouraged in the management of deep caries lesions and pulp exposure, Biodentine™ and MTA were chosen by 96 of the practitioners.</p><p><strong>Clinical significance: </strong>Traditionally, the treatment of deep caries has been destructive, with removal of all carious dentin; however, the promotion of biologically based minimally invasive treatment strategies has been recommended to selectively (partially) remove caries and reduce the risk of pulp exposure. How to cite this article: Laslami K, Kharroubi SE, Moudrif M, et al. Management of Deep Caries Lesions: A Study among Dentists in the Private Sector of Casablanca, Morocco. J Contemp Dent Pract 2024;25(8):751-757.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"25 8","pages":"751-757"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142801582","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}
引用次数: 0
Internal Fit and Marginal Adaptation of Posterior CAD/CAM Crowns Fabricated from Fully Crystallized Lithium Disilicate Compared to Partially Crystallized Lithium Disilicate with Two Finish Line Thicknesses: An In Vitro Study. 两种终点线厚度下完全结晶二硅酸锂与部分结晶二硅酸锂制备后置CAD/CAM冠的内贴合和边缘适应:体外研究
Journal of Contemporary Dental Practice Pub Date : 2024-08-01 DOI: 10.5005/jp-journals-10024-3744
Menna ElGendy, Rana Sherif, Karim Rabie
{"title":"Internal Fit and Marginal Adaptation of Posterior CAD/CAM Crowns Fabricated from Fully Crystallized Lithium Disilicate Compared to Partially Crystallized Lithium Disilicate with Two Finish Line Thicknesses: An <i>In Vitro</i> Study.","authors":"Menna ElGendy, Rana Sherif, Karim Rabie","doi":"10.5005/jp-journals-10024-3744","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3744","url":null,"abstract":"<p><strong>Aim: </strong>This study aimed to evaluate internal fit and marginal adaptation of posterior CAD/CAM crowns fabricated from partially crystallized lithium disilicate and fully crystallized lithium disilicate with two finish line thicknesses (0.5 mm chamfer and 1 mm round shoulder).</p><p><strong>Methodology: </strong>In this <i>in vitro</i> study, 20 sound extracted human molar teeth were collected. The teeth were prepared using a dental surveyor. Teeth were divided into main groups: Group I partially crystallized e.max CAD (Em) and Group II fully crystallized Initial LiSi (Li). Each group was subdivided according to finish line thicknesses into 0.5 mm chamfer and 1 mm round shoulder finish lines. All samples were tested for internal fit by triple scanning technique and the marginal adaptation was measured by stereomicroscope before cementation.</p><p><strong>Results: </strong>The results showed that the finish line thicknesses (0.5 mm chamfer,1 mm round shoulder) had no statistically significant effect on mean internal fit (<i>p</i> = 0.954). Ceramic types: Em and Li had no statistically significant effect on mean internal fit (<i>p</i> = 0.902). Regarding the marginal adaptation, Em showed statistically significantly higher mean marginal gap distance than Li (<i>p</i> < 0.001).</p><p><strong>Conclusion: </strong>The finish line thicknesses did not affect the internal fit or marginal adaptation values. Ceramic types did not affect the internal fit values. The marginal adaptation of Em was lower than Li.</p><p><strong>Clinical significance: </strong>GC Initial Lisi produced comparable results to the gold standard IPS e.max CAD, thus it can be used due to its clinically acceptable internal fit and marginal adaptation. How to cite this article: ElGendy M, Sherif R, Rabie K. Internal Fit and Marginal Adaptation of Posterior CAD/CAM Crowns Fabricated from Fully Crystallized Lithium Disilicate Compared to Partially Crystallized Lithium Disilicate with Two Finish Line Thicknesses: An <i>In Vitro</i> Study. J Contemp Dent Pract 2024;25(8):740-744.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"25 8","pages":"740-744"},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142801396","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}
引用次数: 0
Effects of Various Solutions on Color Stability and Surface Hardness of Nanohybrid Dental Composite Under Simulated Oral Conditions. 模拟口腔条件下各种溶液对纳米杂化牙科复合材料颜色稳定性和表面硬度的影响
Journal of Contemporary Dental Practice Pub Date : 2024-07-01 DOI: 10.5005/jp-journals-10024-3723
Preethesh Shetty, Harikrishnan Dn Jayakumar, Thomas J Pulickal, Namith Rai, Raksha Bhat
{"title":"Effects of Various Solutions on Color Stability and Surface Hardness of Nanohybrid Dental Composite Under Simulated Oral Conditions.","authors":"Preethesh Shetty, Harikrishnan Dn Jayakumar, Thomas J Pulickal, Namith Rai, Raksha Bhat","doi":"10.5005/jp-journals-10024-3723","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3723","url":null,"abstract":"<p><strong>Aim: </strong>This study evaluated effects of various solutions on color stability and surface hardness of a nanohybrid dental composite in simulated oral environments.</p><p><strong>Materials and methods: </strong>Sixty-four composite disks were fabricated and randomly allocated into eight groups (<i>n</i> = 8 per group): Artificial saliva (AS), Biotene (B), passion fruit juice (PFJ), orange juice (OJ), Sprite (S), Coca-Cola (CO), apple cider vinegar (ACV), and cranberry juice (CJ). Specimens were immersed in respective solutions at 37°C for 28 days. Surface microhardness was assessed using Vickers microhardness test, and color alterations were quantified using SpectroShade Micro spectrophotometer. Measurements were taken 24 hours after initial polymerization and after 28-day immersion period. Statistical analysis was performed using mixed model ANOVA.</p><p><strong>Results: </strong>After 28 days, specimens exhibited significant changes in microhardness and color. Polished surfaces showed microhardness decreases of 21.9-35.5%, with ACV and CJ causing largest reductions. Non-polished surfaces unexpectedly showed increased microhardness (11.2-17.4%). Color changes were more pronounced on polished surfaces, with CO and CJ causing maximum alterations. Statistical analysis revealed significant interactions between surface treatment, staining media, and immersion time (<i>p</i> < 0.05).</p><p><strong>Conclusion: </strong>All experimental groups demonstrated significant changes, highlighting composite materials' susceptibility to environmental factors. Even well-polymerized and polished surfaces underwent alterations, emphasizing necessity for periodic follow-up and maintenance polishing in esthetic restorations.</p><p><strong>Clinical significance: </strong>The present research emphasizes significance of oral environmental factors on composite restoration longevity and esthetics, advocating for patient education on dietary impacts and tailored maintenance strategies to preserve restoration quality. How to cite this article: Shetty P, Jayakumar HDN, Pulickal TJ, et al. Effects of Various Solutions on Color Stability and Surface Hardness of Nanohybrid Dental Composite Under Simulated Oral Conditions. J Contemp Dent Pract 2024;25(7):669-676.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"25 7","pages":"669-676"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142629529","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}
引用次数: 0
Eye Mapping: Innovative Technique for Precise Iris Positioning in Prosthetic Eye. 眼图:义眼虹膜精确定位的创新技术。
Journal of Contemporary Dental Practice Pub Date : 2024-07-01 DOI: 10.5005/jp-journals-10024-3715
Namita R Zilpilwar, Sharayu V Nimonkar, Pooja Chitlange, Seema Sathe, Surekha Godbole, Vikram M Belkhode
{"title":"Eye Mapping: Innovative Technique for Precise Iris Positioning in Prosthetic Eye.","authors":"Namita R Zilpilwar, Sharayu V Nimonkar, Pooja Chitlange, Seema Sathe, Surekha Godbole, Vikram M Belkhode","doi":"10.5005/jp-journals-10024-3715","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3715","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this technique is to institute \"Augmented Reality Tool\" in the field of maxillofacial prosthesis for an accurate and precise iris positioning in a prosthetic eye.</p><p><strong>Background: </strong>A congenital defect, irreversible damage, a painful blind eye, sympathetic ophthalmia, or the requirement for histological confirmation of a suspected illness can all result in the absence or loss of an eye. In such circumstances, meticulous preoperative, surgical, and prosthetic planning using a multidisciplinary approach is imperative for successful rehabilitation.</p><p><strong>Technique: </strong>Augmented reality filter was used to provide precise mapping of facial landmarks and to aid in iris positioning. Smartphone device (S22) was used and artificial intelligence (AI)-generated Instagram application was unfurled and augmented reality (AR) filter was instituted. The filter available in the application made it possible to see and confirm the iris shell's location in three dimensions from various angles. The dimensions thus provided, aided in the correct positioning of the iris in the prosthetic eye.</p><p><strong>Conclusion: </strong>Iris positioning stands as one of the crucial steps in fabricating a patient-specific ocular prosthesis. In the present case report, iris positioning was done using AI has provided an excellent esthetics results and patient compliance was met with satisfaction.</p><p><strong>Clinical significance: </strong>Accurate positioning of iris can be done using AR tool which is popular, easily accessible, less technique sensitive, and can be performed with slightest efforts in small clinical set-ups. Relating to patient, it is comfortable, economic, and trouble-free procedure. How to cite this article: Zilpilwar NR, Nimonkar SV, Chitlange P, et al. Eye Mapping: Innovative Technique for Precise Iris Positioning in Prosthetic Eye. J Contemp Dent Pract 2024;25(7):711-714.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"25 7","pages":"711-714"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142629454","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}
引用次数: 0
The Acoustic Emission Testing in the Evaluation of Fracture Toughness of Brittle Materials. 声发射测试在脆性材料断裂韧性评估中的应用。
Journal of Contemporary Dental Practice Pub Date : 2024-07-01 DOI: 10.5005/jp-journals-10024-3722
Camille Haddad, Jean Gebran Eng, Amine El Zoghbi
{"title":"The Acoustic Emission Testing in the Evaluation of Fracture Toughness of Brittle Materials.","authors":"Camille Haddad, Jean Gebran Eng, Amine El Zoghbi","doi":"10.5005/jp-journals-10024-3722","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3722","url":null,"abstract":"<p><strong>Aim: </strong>Evaluating the fracture resistance of dental ceramics is essential for assessing their behavior. This study aimed to validate a custom load-to-fracture test for assessing fracture strength compared to a conventional method.</p><p><strong>Materials and methods: </strong>Acoustic emission testing, a non-destructive (ND) lab test, was employed to evaluate the fracture toughness (FT) of brittle materials by capturing sound waves generated by crack formation in failing samples. A total of 130 samples, divided into three types (glass sheets, zirconia sheets, and monolithic zirconia crowns), were tested. The fracture loads were measured using both custom and conventional methods.</p><p><strong>Results: </strong>The mean fracture loads for glass sheets were 650.46 N ± 110.38 (custom) compared to 691.41 N ± 155.92 (conventional). For zirconia sheets, the values were 95.25 N ± 7.78 (custom) vs 112.75 N ± 31.26 (conventional). Monolithic zirconia crowns showed mean fracture loads of 1108.99 N ± 327.89 (custom) compared to 1292.52 N ± 271.42 (conventional). Statistically significant differences were evident in all three types, indicating lower values with custom testing for all samples.</p><p><strong>Conclusion: </strong>The custom testing demonstrated an advantage in identifying cracks at lower loads, thereby enhancing the accuracy of fracture load values. Despite its limitations, the study suggests that the custom setup could be a viable alternative to conventional fracture load testing of brittle materials. However, further testing with more materials is recommended to enhance the results' accuracy and generalizability.</p><p><strong>Clinical significance: </strong>The findings indicate that the custom load-to-fracture test can provide more accurate measurements of FT in dental ceramics, which is crucial for predicting their clinical performance and longevity. How to cite this article: Haddad C, Eng JG, Zoghbi AE. The Acoustic Emission Testing in the Evaluation of Fracture Toughness of Brittle Materials. J Contemp Dent Pract 2024;25(7):617-623.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"25 7","pages":"617-623"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142629462","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}
引用次数: 0
Effect of Silver Diamine Fluoride and Potassium Iodide on Microleakage of Composite Resin in Anterior Primary Teeth. 二胺氟化银和碘化钾对前牙基牙复合树脂微渗漏的影响
Journal of Contemporary Dental Practice Pub Date : 2024-07-01 DOI: 10.5005/jp-journals-10024-3719
Avissasadat Meraji, Fardin Asadian, Somayeh Hekmatfar
{"title":"Effect of Silver Diamine Fluoride and Potassium Iodide on Microleakage of Composite Resin in Anterior Primary Teeth.","authors":"Avissasadat Meraji, Fardin Asadian, Somayeh Hekmatfar","doi":"10.5005/jp-journals-10024-3719","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3719","url":null,"abstract":"<p><strong>Aim: </strong>One of the preventive interventions for early childhood caries is the use of silver diamine fluoride (SDF), which works uniquely in the prevention of caries. The suggested method to minimize the discoloration of SDF is the use of potassium iodide (KI). However, there are concerns about the bonding properties of dentin after the application of SDF-KI. Therefore, this study aimed to investigate how SDF-KI affects composite resin microleakage in primary teeth.</p><p><strong>Materials and methods: </strong>In this <i>in vitro</i> study, class V cavities were created on the buccal surfaces of 60 extracted primary canines. The samples were divided into three groups: Group I: 38% SDF solution was applied to the cavity; Group II: SDF-KI solution was applied to the cavity; and group III: the cavities were irrigated with distilled water. All cavities were filled with composite resin and subjected to a thermocycling regime (500 cycles). The dye penetration of samples was evaluated following a 24-h immersion in 1% methylene blue. Microleakage at the occlusal and gingival margins was evaluated using a stereomicroscope at 40× magnification. Data were analyzed using the Chi-squared test (<i>p</i> < 0.05).</p><p><strong>Results: </strong>There was no statistically significant difference between microleakage scores at the occlusal margin (<i>p</i> = 0.128). At the cervical margin, the SDF-KI group had significantly more microleakage than the SDF and control groups (<i>p</i> = 0.001).</p><p><strong>Conclusion: </strong>Applying the SDF-KI significantly increased microleakage in the cervical margin but had no significant effect on the occlusal margin.</p><p><strong>Clinical significance: </strong>Regarding the beneficial effects of SDF in preventing and arresting dental caries, application of it before composite resin is suggested in controlling caries without the negative effects on microleakage. How to cite this article: Meraji A, Asadian F, Hekmatfar S. Effect of Silver Diamine Fluoride and Potassium Iodide on Microleakage of Composite Resin in Anterior Primary Teeth. J Contemp Dent Pract 2024;25(7):691-695.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"25 7","pages":"691-695"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142629527","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}
引用次数: 0
The Effect of Three Metal Oxide Nanocoatings on the Frictional Resistance of Superelastic Orthodontic Archwires: A Comprehensive In vitro Analysis. 三种金属氧化物纳米涂层对超弹性正畸弓丝摩擦阻力的影响:体外综合分析
Journal of Contemporary Dental Practice Pub Date : 2024-07-01 DOI: 10.5005/jp-journals-10024-3730
Srinivasan Dilip, Krishnan Rajkumar
{"title":"The Effect of Three Metal Oxide Nanocoatings on the Frictional Resistance of Superelastic Orthodontic Archwires: A Comprehensive <i>In vitro</i> Analysis.","authors":"Srinivasan Dilip, Krishnan Rajkumar","doi":"10.5005/jp-journals-10024-3730","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3730","url":null,"abstract":"<p><strong>Aim and objective: </strong>To evaluate and compare the impact of nanocoatings made of oxides of Aluminum, Titanium, and Zirconium, on the frictional resistance on three types of superelastic orthodontics archwires namely; nickel titanium, copper nickel titanium and low hysteresis nickel titanium.</p><p><strong>Materials and methods: </strong>There are120 archwire segments of equal dimensions were divided into four groups (<i>n</i> = 30) with 10 samples each of low hysteresis superelastic archwires; NiTi archwires and CuNiTi archwires. While group A were uncoated, other groups were nanocoated with group B: Aluminum oxide; group C: Titanium dioxide; group D: Zirconium oxide respectively. Upper premolar metal brackets MBT 0.022 slot were used for testing. The frictional properties of the archwires were measured using a Universal testing machine equipped with a custom-made jig. Statistical tests including analysis of variance and <i>post hoc</i>tests were used for analysis.</p><p><strong>Results: </strong>The least frictional resistance among the three types of archwires was seen with low hysteresis(L&H) NiTi wires coated with ZrO<sub>2</sub> (3.1253 ± 0.45822 <i>N</i>) and the highest with uncoated CuNiTi archwires (7.1113 ± 1.29031 <i>N</i>). Among the nanocoatings, the least value was found for ZrO<sub>2</sub> nanocoatings followed by TiO<sub>2</sub>, Al2O<sub>3</sub> and highest with uncoated archwires across all three types of archwires.</p><p><strong>Conclusion: </strong>Low hysteresisNiTi have the least frictional resistance compared to CuNiTi and NiTi archwires. The findings also suggest that all the three metal oxide nanocoatings reduce frictional resistance significantly, among which, ZrO<sub>2</sub> nanocoatings were the most effective. This study underscores the potential efficacy of metal oxide nanocoatings in reducing archwire friction and, consequently, will improve orthodontic treatment efficiency and patient comfort. How to cite this article: Dilip S, Rajkumar K. The Effect of Three Metal Oxide Nanocoatings on the Frictional Resistance of Superelastic Orthodontic Archwires: A Comprehensive <i>In vitro</i> Analysis. J Contemp Dent Pract 2024;25(7):649-655.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"25 7","pages":"649-655"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142629532","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}
引用次数: 0
The Influence of Different Pontic Designs on Fracture Resistance of Implant-supported Fixed Partial Dentures Anchored in Polyurethane Simulating Bone-blocks of Two Different Densities: An In Vitro Study. 不同基托设计对种植体支持的固定局部义齿锚定在两种不同密度的聚氨酯模拟骨块中的抗折性的影响:体外研究。
Journal of Contemporary Dental Practice Pub Date : 2024-07-01 DOI: 10.5005/jp-journals-10024-3721
Mohamed S Othman, Manal Rh Abu-Eittah
{"title":"The Influence of Different Pontic Designs on Fracture Resistance of Implant-supported Fixed Partial Dentures Anchored in Polyurethane Simulating Bone-blocks of Two Different Densities: An <i>In Vitro</i> Study.","authors":"Mohamed S Othman, Manal Rh Abu-Eittah","doi":"10.5005/jp-journals-10024-3721","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3721","url":null,"abstract":"<p><strong>Aim: </strong>This study aimed to evaluate the fracture resistance of implant-supported fixed partial prostheses fabricated from monolithic zirconia with different pontic framework designs and anchored in different bone-like simulation models of two different densities.</p><p><strong>Materials and methods: </strong>A total of 60 implants were anchored in two different <i>in vitro</i> bone simulation models of two different densities, namely, solid polyurethane foam blocks, 20 and 10 pounds per cubic foot (PCF) to construct implant-supported fixed partial dentures (FPDs), the pontic constructed to replace missing second premolar and first molar. Thirty models were constructed and then divided into two groups according to anchoring material D2 (<i>n</i> = 15) and D3 (<i>n</i> = 15). Each group of models was subdivided into three groups according to pontic design (<i>n</i> = 5). Each model was tested against fracture in a universal testing machine. The data were analyzed with a two-way univariate ANOVA and Tukey HSD test (α = 0.05). The results were statistically analyzed, and the values were considered significant at <i>p</i>≤0.05.</p><p><strong>Results: </strong>The findings showed that neither change in pontic design nor change in bone type has a significant influence on the fracture resistance of the prostheses (<i>p</i> > 0.05). All the tested materials fell within the acceptable range for functioning under mastication, with a slight change in resistance when the pontic design was changed.</p><p><strong>Conclusion: </strong>Zirconia is considered the material of choice when planning implant-supported FPDs because of its high fracture strength values. Within the limitations of this study, the pontic design and synthetic polyurethane bone-simulating model had no effect on the fracture resistance of four-unit implant-supported FPDs.</p><p><strong>Clinical significance: </strong>This study postulated that any pontic design could be used in four units of implant-supported FPDs according to functional and aesthetic needs, as long as the histological nature of the alveolar bone falls within the D2 or D3 bone type. How to cite this article: Othman MS, Abu-Eittah MRH. The Influence of Different Pontic Designs on Fracture Resistance of Implant-supported Fixed Partial Dentures Anchored in Polyurethane Simulating Bone-blocks of Two Different Densities: An <i>In Vitro</i> Study. J Contemp Dent Pract 2024;25(7):684-690.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"25 7","pages":"684-690"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142629540","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}
引用次数: 0
Case-control Study: Comparative Evaluation of Bio active Glass (Novabone Putty) and Demineralized Freeze-dried Bone Allograft in the Treatment of Mandibular Furcation Defects. 病例对照研究:生物活性玻璃(Novabone 粘合剂)与去矿化冻干骨异体移植治疗下颌骨毛囊缺损的比较评估。
Journal of Contemporary Dental Practice Pub Date : 2024-07-01 DOI: 10.5005/jp-journals-10024-3729
Abarna Sen, Padma Rajan, Vivek Kumar, Archisman Mukherjee, Rahul Sahoo, Chetan Kumar
{"title":"Case-control Study: Comparative Evaluation of Bio active Glass (Novabone Putty) and Demineralized Freeze-dried Bone Allograft in the Treatment of Mandibular Furcation Defects.","authors":"Abarna Sen, Padma Rajan, Vivek Kumar, Archisman Mukherjee, Rahul Sahoo, Chetan Kumar","doi":"10.5005/jp-journals-10024-3729","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3729","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this study was to compare a second-generation bioactive glass putty biomaterial (Novabone putty) against demineralized freeze-dried bone allograft (DFDBA) in mandibular grade II furcation defects.</p><p><strong>Materials and methods: </strong>Fifteen systematically healthy individuals in the age range of 38-50 years were selected for this split-mouth study. Group I consisting of 15 sites, was treated with DFDBA and group II consisting of 15 sites was treated with Novabone putty (NB putty). The clinical parameters recorded at 0, 3 and 6 months included plaque index (PI), gingival index (GI), probing pocket depth (PPD), relative vertical attachment level (RVAL) and relative horizontal attachment level (RHAL). Standardized intraoral periapical radiographs were taken at all 30 sites pre-and 6 months post-operatively.</p><p><strong>Results: </strong>Probing pocket depth reduced significantly (<i>p</i> = 0.001) when baseline values were compared to 3 and 6 months postoperatively. In group II mean RVAL changed from 6.56 ± 1.44 at baseline to 4.80 ± 1.14 at 3 months and 4.80 ± 1.33 at 6 months which was found to be highly significant (HS) (<i>p</i> = 0.001). The mean RHAL also showed a significant difference when baseline values were compared to 6 months post-operatively in both the groups. With respect to defect depth and bone density, no significant difference was found between the two groups.</p><p><strong>Conclusion: </strong>Significant improvement of the clinical parameters were seen in both the groups. As both the groups showed increase in defect fill and bone density, it can be summarized that NB putty seems to have comparable regeneration property to that of DFDBA when used for mandibular grade II furcation defects.</p><p><strong>Clinical significance: </strong>The ease of use and higher level of biological performance of second-generation bioactive glass putty make it an ideal graft material. How to cite this article: Sen A, Rajan P, Kumar V, et al. Case-control Study: Comparative Evaluation of Bio active Glass (Novabone Putty) and Demineralized Freeze-dried Bone Allograft in the Treatment of Mandibular Furcation Defects. J Contemp Dent Pract 2024;25(7):696-702.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"25 7","pages":"696-702"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142629523","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}
引用次数: 0
Radiographic Assessment of the Quality of Root Canal Filling of Mandibular First Molars Performed by Endodontists in Asir Region, Saudi Arabia. 沙特阿拉伯阿西尔地区牙髓病学家对下颌第一磨牙根管充填质量的放射学评估。
Journal of Contemporary Dental Practice Pub Date : 2024-07-01 DOI: 10.5005/jp-journals-10024-3666
Raid A Almnea
{"title":"Radiographic Assessment of the Quality of Root Canal Filling of Mandibular First Molars Performed by Endodontists in Asir Region, Saudi Arabia.","authors":"Raid A Almnea","doi":"10.5005/jp-journals-10024-3666","DOIUrl":"https://doi.org/10.5005/jp-journals-10024-3666","url":null,"abstract":"<p><strong>Aim: </strong>This study aimed to assess and evaluate the quality of root canal fillings (RCFs) conducted on mandibular first molars performed by endodontists in the Asir region, Saudi Arabia.</p><p><strong>Participants and methods: </strong>A cross-sectional radiographical study was conducted among patients over 18 years old from both genders treated by endodontists with different qualifications and experiences. The treatments were carried out under similar operating field, materials, and equipment. The quality of the X-rays was evaluated according to the international standards in the form of length, density, and taper. Those radiographs were assessed by two evaluators with similar certificates. Intraexaminer agreements were calculated. Chi-square or Fisher's exact tests were used to test the significant difference between groups and the quality parameters. <i>p</i> < 0.05 was considered a cutoff point for statistical significance.</p><p><strong>Results: </strong>A total of 74 mandibular molars with 224 root canals treated were assessed in this radiographic study. The recorded adequate percentages were 77, 93, and 91% for the quality of RCF taper, density, and taper, respectively, with acceptable overall RCF quality of 87%. Significant differences were recorded between the right and left sides in terms of taper (<i>p</i> = 0.035), as well as between different years of experiences and different locations of the canals in terms of density (<i>p</i> = 0.040 for both variables).</p><p><strong>Conclusion: </strong>The quality of RCFs performed by endodontist with different type of certificates performed in mandibular first molars were high in terms of density and taper but moderate in length. The overall RCF quality was acceptable.</p><p><strong>Clinical significance: </strong>Evaluation of the postoperative preapical X-rays for the endodontically treated teeth is a positive point in maintaining high standard services of patients. It should be followed as mentioned in the recommended textbooks in relation to length, taper, and density. How to cite this article: Almnea RA. Radiographic Assessment of the Quality of Root Canal Filling of Mandibular First Molars Performed by Endodontists in Asir Region, Saudi Arabia. J Contemp Dent Pract 2024;25(7):624-630.</p>","PeriodicalId":35792,"journal":{"name":"Journal of Contemporary Dental Practice","volume":"25 7","pages":"624-630"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142629459","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}
引用次数: 0
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