Iraqi Dental Journal最新文献

{"title":"Prevalence and Correlations Between Temporomandibular Disorders in Dental Students Based on Diagnostic Criteria ( Dc/Tmd ), Parafunctions And Psychoemotional Stress","authors":"Hajer Ibraheem, Ola Ali Khalaf","doi":"10.26477/IDJ.V38I3.102","DOIUrl":"https://doi.org/10.26477/IDJ.V38I3.102","url":null,"abstract":"The aim of the study was to assess the prevalence of temporomandibular disorders (TMD) and oral parafunctions, as well as their correlation with psychoemotional factors among dental students by using diagnostic criteria (DC/RDC).the sample’s size of 407 students (169 males and 238 females) of dental college (100 fifth stage , 102 fourth stage ,99 third stage and 106 second stage ) . Firstly students subjected for stress questionnaire (perceived stress scale -10) , secondly they subjected to different clinical and questionnaire measures according to diagnostic criteria of temporomandibular disorders DC/TMD (axis1) which have standerized series of diagnostic tests based on clinical signs and symptoms , finally the dental students subjected for oral parafunctions ques- tionnaire using oral behavior checklist.the results obtained from this study showed that the prevalence of TMDs was significantly greater among students with oral parafunctions . We also observed that the prevalence of TMDs according to DC/TMD was higher among students with headache .in this study, the prevalence of psycho-emotional stress , TMD according to DC/TMD and oral parafunctions were higher in females than males and in fifth stage greater than other stages.the prevalence of TMDs according to DC/TMD were significantly higher among females than males.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":"44 1","pages":"160-162"},"PeriodicalIF":0.0,"publicationDate":"2016-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73509388","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":"The effects of polishing the fitting surface of acrylic base retainers on Methichillin resistance staphylococcus aureus; a laboratory study","authors":"D. A. Groosh, J. Pratten, N. Hunt","doi":"10.26477/IDJ.V38I3.98","DOIUrl":"https://doi.org/10.26477/IDJ.V38I3.98","url":null,"abstract":"This in vitro study evaluated the effects of polishing the fitting surface of two acrylic based matetrials on the surface characteristics and biofilm formation of Methicillin Resistance Staphylococcus aureus (MRSA) biofilms. A simulated mouth model (Constant Depth Film Fermenter) was used to produce biofilms on autopolymerised and heat cure acrylic substrata. Surface parameters included surface roughness, hydrophobicity and surface free energy was evaluated after using the conventional polishing procedure to samples simulating the clinical situation. The results showed that MRSA has successfully adhered and grown in all samples with a similar pattern without a significant difference between the recovered viable bacterial counts. The rough surface provide protect- ed niche for MRSA against the dislodgment forces. In conclusion, the finding of suggested that polishing the fitting surface of acrylic base materials may facilitate MRSA biofilm removal.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":"43 1","pages":"137-141"},"PeriodicalIF":0.0,"publicationDate":"2016-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77501699","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 Different Surface Treatments on The Tensile Bond Strength Between Acrylic Resin Teeth and Denture Base Material","authors":"Ihab Nafea Yaseen","doi":"10.26477/IDJ.V38I3.99","DOIUrl":"https://doi.org/10.26477/IDJ.V38I3.99","url":null,"abstract":"Aims of study : A study was carried out to assess the tensile bond strength between acrylic denture base and denture teeth af- ter manipulation with different surface treatments. Methods : Thirty central incisors from acrylic denture teeth were cut at the neck (ridge lap surface). Such teeth were then allocated into three groups of different surface treatments: teeth in the first group received no further treatment; teeth in the second group were surface treated with a groove placed and reinforced with a metal wire; teeth in the third group were reinforced with a glass fiber. Each group was processed by water – bath. Results: The results showed that all treated groups improved the tensile bond strength was in a significant, level at (P<0.01), while the third group glass fiber was the highest mean values. Conclusions: The metal wire enhanced significantly the tensile bond strength. The addition of glass fiber can significantly enhance the tensile bond strength between acrylic denture base and denture teeth.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":"4 1","pages":"142-146"},"PeriodicalIF":0.0,"publicationDate":"2016-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81855788","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":"Comparative Evaluation of Effect of Irrigation Solutions with Various Exposure Time on Microhardness of Root Canal Dentin (In Vitro Study)","authors":"H. A. Saleh","doi":"10.26477/IDJ.V38I3.96","DOIUrl":"https://doi.org/10.26477/IDJ.V38I3.96","url":null,"abstract":"Background: It is important to test the effect of the irrigating solutions on dentin, as they may come in contact during irrigation procedures. These irrigants cause alterations on dentin and enamel surfaces and affect their interactions with materials used for obturation and coronal restorations. The aim was to study the microhardness of root canal dentin after irrigation with different irrigant solutions for different periods. Materials and Methods: Twenty five newly extracted non carious human permanent incisors were sectioned at cementoenamel junction and splitted longitudinally then divided into five groups; Gr1 (control) distilled water, G2: 5.25% sodium hypochlorite (NaOCl) for (10 min) then 17% EDTA for (1 min), G3: 5.25% sodium hypochlorite (NaOCl) for (10 min) then 17% EDTA for (5 min), G4: 5.25% sodium hypochlorite(NaOCl) for (20 min) then 17% EDTA for (1 min) and G5: 5.25% sodium hypochlorite(NaOCl) for (20 min) then 17% EDTA for (5 min). Vickers microhardness was evaluated.  Results: Data were analyzed using one-way ANOVA and paired t-test. The results indicated that all treatment time with 5.25% NaOCl and 17% EDTA decreased dentin microhardness significantly compared to distilled water (control). There were significant differences (P<0.001) between the tested groups with increasing time of exposure of irrigation solutions. Treatment with distilled water (control) showed significantly the highest microhardness value, while 5.25% sodium hypochlorite for 20 minute followed by 5 minutes (G5) with 17% EDTA showed significantly the least microhardness value followed by G4, G3 and G2. Conclusions :Increasing irrigation time with both 5.25% sodium hypochlorite and 17% EDTA decreased dentin microhardness.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":"1 1","pages":"124-128"},"PeriodicalIF":0.0,"publicationDate":"2016-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88700841","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":"A comparative Study of Immunohistochemical Expression of Tumor Necrosis Factor-Alpha, Interleukin-6and Vascular Endothelial Growth Factor in Giant Cell Granuloma of the Jaws and Giant Cell Tumor of Long Bones","authors":"Saba F. Naji, W. H. Younis, B. H. Abdullah","doi":"10.26477/IDJ.V38I2.81","DOIUrl":"https://doi.org/10.26477/IDJ.V38I2.81","url":null,"abstract":"Background: Central giant cell granuloma (CGCG) and peripheral giant cell granuloma(PGCG) are pathological conditions of the jaws that share the same microscopic features, but differ clinically in terms of their behavior. While the giant cell tumor (GCT) of long bones is a rare benign neoplasm, tend to affect femur and tubular bone, characterized by local aggressiveness, high recur- rence rates and metastasis to the lung. Objectives: To evaluate, compare and correlate the expression of TNF-α, IL-6 and VEGF in peripheral and central giant cell granu - loma of the jaw and giant cell tumor of long bones. Methods: A total of 60 retrospective formalin- fixed, paraffine-embeded specimens of giant cell lesions of the jaws and long bones, where included in this study. An immunohistochemical staining with TNF-α , IL-6 and VEGF monoclonal antibodies were performed. Results: TNF-α, IL-6 and VEGF were expressedin all lesions. The PGCG comparedto the CGCG and GCT showed significantly in - creased expression of TNF-α and decreased expression of VEGF by the stromal cells..GCT showed increased expression of VEGF by M NGCs and stromal cells .There is a non significant difference between CGCG and GCT regarding the expression of all three cytokines. Conclusions: The present study confirmed the usefulness TNF-α,IL-6 and VEGF in evaluating osteoclastogenesis. The results of this study proved that the biological activity of TNF-α, IL-6 and VEGF was comparable between the central giant cell granuloma and giant cell tumors, supporting the observations that these two lesions are the same entity and have the same biological behavior.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":"13 1","pages":"70-79"},"PeriodicalIF":0.0,"publicationDate":"2016-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86534280","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":"Comparing Maximum Stresses and Displacements in A Lower Complete Denture with Different Occlusal Plane Levels and Schemes . A Three Dimensional Finite Element Stress Analysis Study","authors":"Abdalbasit Ahmed Fatiallah, S. Faraj","doi":"10.26477/IDJ.V38I2.90","DOIUrl":"https://doi.org/10.26477/IDJ.V38I2.90","url":null,"abstract":"Purpose of study: A three dimensional stress analysis method was used to assessed the stress distribution and displacement in a lower complete denture Materials and Methods : The sample consists of three groups , First group :three set of lower complete denture constructed using cast poured from ready made teaching mould to study the effects of balanced ,lingualized and monoplane occlusal schemes on the stress distribution when the occlusal plane leveled with upper, middle and lower third of the retro molar pad .the load used in this study was 58.8 Newton directed axially downward applied on specific sites differ with different occlusal schemes. Results : Both balanced and lingualized occlusal schemes exert minimal stresses and rotational movements around ridge crest when leveled with middle third of retro molar pad while occlusal plane leveled with the lower third of retro molar pad shows more incidence for rotational movements Conclusion : Stability improved in monoplane occlusal plane over the three occlusal plane levels the posterior of teeth should be adjusted over the ridge crest so that the lateral stresses reduced and increased denture stability.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":"2 1","pages":"107-112"},"PeriodicalIF":0.0,"publicationDate":"2016-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89792794","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":"Cyclic Fatigue Resistance of New Endodontic Files in Reciprocal vs. Rotational Motion","authors":"M. Chakmakchi, Ashraf AlChalabi","doi":"10.26477/IDJ.V38I2.86","DOIUrl":"https://doi.org/10.26477/IDJ.V38I2.86","url":null,"abstract":"Objectives: To evaluate the flexural fatigue resistance of WaveOne Primary and Protaper NEXT X2 NiTi files used in reciprocating and rotation motions. Materials and methods: A 20 files, 25mm long for use in reciprocating [Group 1: WaveOne Primary, n=10] and continuous rotation [Group 2: Protaper NEXT X2, n=10] were selected. All instruments were operated in a static model for cyclic fatigue testing which was conducted in a device that allowed for a reproducible simulation of an instrument confined in a curved canal. The instruments were activated by a torque-controlled motor [X-smart plus, Dentspy Maillefer] using the preset program WaveOne ALL for the WaveOne instruments and the preset program for the Ppotaper NEXT X2 instruments. All instruments were rotated until fracture occurred. The number of cycles to failure [NCF] for each instrument was calculated. The length of the fractured file tip was mea- sured. NCF data were statistically analyzed by Student t -test. Results: The statistical analysis revealed a statistically significant differences [p<0.001] between two groups. WaveOne primary instruments were associated with a significantly greater NCF. Conclusions: The test results showed significantly increased cyclic fatigue resistance of the file with reciprocal motions compared to continuous rotation. No differences were found between the lengths of the fractured segment.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":"3 1","pages":"102-106"},"PeriodicalIF":0.0,"publicationDate":"2016-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82538578","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":"The effect of oral health educational pictures and video on periodontal health and behavior of school children","authors":"A. Mahmood","doi":"10.26477/IDJ.V38I2.80","DOIUrl":"https://doi.org/10.26477/IDJ.V38I2.80","url":null,"abstract":"Background: Oral health education for students is a fundamental role for maintaining and raising perfect oral health and pre- venting oral diseases in future. This study was performed to evaluate the effect of oral health educational pictures and video on periodontal health and behavior in dentition of 12-years old school children in Baghdad city. Materials and methods: Oral examination was conducted on (128) children of (Al-Yamama) primary school in Baghdad city. They were divided into four equal groups, each one consisting of (32) children. The first oral examination was done in first visit to chil- dren (pre-test). The community periodontal index (CPITN) scores were used to evaluate periodontal health status of children. Then, the first and second groups, experimental groups, were received instruction about oral health enhancement with education- al program (pictures and video clip) regularly for one month. The third and fourth groups, control groups, were received instruction about oral health enhancement only regularly for one month. The second oral examination was done after one month to children (post-test). Also, questionnaire were given to assess oral health behaviors of children in pre- and post- tests. Results: Clinical examination display that CPITN of experimental groups (1, 2) was lower with healthier gingiva when compared with control groups (3, 4) with statistical significant differences between pre and post-tests (P-value <0.005). The percentages of using tooth brush and paste, frequency of teeth cleaning at day, time taking for cleaning teeth, preferable time of cleaning, brush- ing technique, tooth brush replacement, cause of tooth brushing and using of dental floss were improved in post-test in all groups in comparison with pre-test especially in the experimental groups (1, 2). Conclusion : Results of this study clearly reflect the proposed positive effect of the educational program in the lowering CPITN indices scores among the participants in the experimental group. Results of this study also provide another clue that combination of instruction about oral health enhancement with educational program (pictures and video clip) that represent new strategies for community oral health education; which could be targeted in order to enhance the effect of the oral health education campaigns directed to primary school children.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":"140 1","pages":"63-69"},"PeriodicalIF":0.0,"publicationDate":"2016-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86590336","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":"Salivary a-Amylase and Albumin Levels In Patients with Chronic Periodontitis and Poorly or Well Controlled Type 2 Diabetes Mellitus","authors":"M. Ahmed","doi":"10.26477/IDJ.V38I2.82","DOIUrl":"https://doi.org/10.26477/IDJ.V38I2.82","url":null,"abstract":"Background: Recent studies suggest that chronic periodontitis (CP) and type2 diabetes mellitus (T2DM) are bidirection- ally associated. Analysis of saliva as a mirror of oral and systemic health could allow identification of α amylase (α-Am) and albumin (A1) antioxidant system markers to assist in the diagnosis and monitoring of both diseases. The aims of study, compare the clinical periodontal parameters in chronic periodontitis patients with poorly or well controlled T2DM, salivary α-Am, A1, flow rate (FR) and pH then correlate between biochemical, physical and clinical periodontal parameters of each study and control groups. Materials and Methods : 80 males, with an age range of (35-50) years were divided into four groups, (20 subjects at each): two groups had well or poorly controlled T2DM both of them with chronic periodontitis, group of patients with only chronic periodontitis and control group with healthy periodontium and systemically healthy. From all subjects unstimulated whole salivary samples were collected to measure FR, pH, Al and α – Am, then clinical periodontal parameters (plaque index, gingival index, bleeding on probing, probing pocket depth and clinical attachment level)were recorded. Results : patients had chronic periodontitis with poorly controlled T2DM demonstrated the highest median values of all clinical periodontal parameters and highest increase in levels of salivary α-Am and Al with lowest median values of FR and pH, in addition to the highly significant differences among the study and control groups regarding biochemical and phys - ical parameters. Positive correlation were revealed between α-Am with Al and both of them with all clinical periodontal parameters but, they were negative with FR and pH. Conclusion : patients with poor glycemic control had more severe periodontal tissue break down with decrease in FR and pH also obvious increase in levels of A1 and α- Am so, these biochemical markers will provide an objective phenotype to allow practitioners for early diagnosis, which is essential for improved prognosis and effective delay of clinical compli- cations associated with chronic periodontitis and DM and an important strategy to lower the incidence of both diseases world wide.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":"14 1","pages":"80-86"},"PeriodicalIF":0.0,"publicationDate":"2016-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82241598","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 Oil Paint Addition on Micro Hardness of Acrylic Ocular Prosthesis","authors":"Firas Abd Kati, A. F. J. Al-Kaabi","doi":"10.26477/IDJ.V38I2.83","DOIUrl":"https://doi.org/10.26477/IDJ.V38I2.83","url":null,"abstract":"Introduction: Medical grade acrylic resin is the material of choice for many dental and facial restorations. When making artificial eye from this polymer, it is highly required to apply the perfect shade matching the original one. However, this may have some significant effect on the mechanical properties as well as surface integrity since most types of paints used with acrylic resin are oil paints. The aim of this study was to evaluate the effect of oil paint addition on acrylic resin surface hardness. Methods: The study consisted of 3 main groups (control, white 1, and white 2). Each group consisted of 10 samples. The paint concentration was increased from white 1 to white 1 respectively. Vickers hardness test was applied on all samples. Results: The statistical results showed that there was a significant increase in the acrylic surface hardness as the oil paint concen- tration increases (p-value < 0.05). Conclusion: A conclusion drawn from this study that the oil paint would have significantly increase the acrylic eye prosthesis hard- ness but it might be to a certain level.","PeriodicalId":78326,"journal":{"name":"Iraqi Dental Journal","volume":"22 1","pages":"87-89"},"PeriodicalIF":0.0,"publicationDate":"2016-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85912380","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}