scholarly journals Comparative Evaluation of Cavosurface Marginal Integrity by Assessing Microleakage Scores of Three Different Composites using a Universal Adhesive in Self Etch and Selective Etch Modes- A Stereomicroscopic Study

Author(s):  
Archie Khera ◽  
Arvind Shenoy

Introduction: Composite resins are currently the most popular restorative materials due to their superior esthetics, strong mechanical properties and high resistance to dissolution. However, in spite of the improvements in resin composite formulations over the years, polymerisation shrinkage which necessitates incremental placement techniques still presents clinical challenges. Aim: To compare and evaluate cavosurface marginal integrity in Class I restorations by assessing microleakage scores using Tetric N-Flow Bulk fill, SureFil Bulk fill composites and Filtek Z350 XT and using selective etch and self etch modes of a universal adhesive. Materials and Methods: This in-vitro research study was carried out in the Department of Conservative Dentistry and Endodontics, Bapuji Dental College and Hospital, Davangere, Karnataka, India from April, 2018 to May, 2018. Sixty extracted non-carious, intact human mandibular molar teeth were selected for this study. Standardised Class I cavities of 4 mm depth were prepared by a single operator with a high-speed hand piece using carbide fissure # 245 (SS White Inc) bur under air-water coolant. Samples were randomly divided into two main groups in which Single Bond Universal was used: Group I: Selective Etch Mode (30), Group II: Self Etch Mode (30). These main groups were then divided into 3 subgroups each Subgroup TF: Tetric N- Flow Bulk fill (Ivoclar Vivadent), Subgroup SB: SureFil Bulk fill (Dentsply) and Subgroup FC: Filtek Z350 XT (3M ESPE). All the specimens were then sectioned longitudinally along the mesio-distal direction towards the center of the restoration. Each specimen was viewed under a stereomicroscope and grading was done according to dye penetration at the tooth-restoration interface. Kruskal-Wallis and Mann-Whitney U-test were used to analyse the results. Results: The results showed that there was statistically significant difference in the microleakage scores of Tetric N- Flow Bulk fill, Filtek Z350 XT and SureFil Bulk fill (p<0.001). Group I Subgroup TF yielded lower microleakage score 0.70±0.675 as compared to Group II Subgroup TF which had a higher score 1.60±1.578. This difference was not statistically significant. (p-value=0.266). Group I Subgroup SB yielded lower microleakage score 1.20±0.919 as compared to Group II Subgroup SB which had a higher score 2.10±0.568. This difference was statistically significant. (p-value=0.017). Group I Subgroup FC yielded lower microleakage score 2.50±1.354 as compared to Group II Subgroup FC which had a higher score 3.20±0.789. This difference was not statistically significant (p-value=0.260). Conclusion: Tetric N flow bulk fill flowable composite resin can be considered as a better choice when compared to SureFil bulk fill and Filtek Z350XT composite resins. Selective enamel etching with SureFil bulk fill should be considered as the better choice as compared to self-etch for providing adequate seal in mild universal adhesives in Class I cavities.

2019 ◽  
Vol 26 (08) ◽  
pp. 1377-1681
Author(s):  
Kashif Haroon ◽  
Uzma Ijaz ◽  
Saad Haroon ◽  
Taimoor Khan ◽  
Raheela Yasmin ◽  
...  

The revolution in orthodontics has been due to replacement of cemented bands by orthodontic brackets. Acid etching is required to bond a bracket on tooth’s surface. Traditional three step acid etch procedure consisted of etching, sealing/priming and bonding. The self etch system (etchant and primer together) can be used without the need for surface preparation, saving chair side time and minimizing contamination. Objectives: To compare the shear bond strength (SBS) of orthodontic bracket bonded with Conventional etching primer (Transbond XT, 3M Unitek) with self etch primer (Adper Prompt L-Pop, 3M ESPE). Study Design: Prospective study Setting: Orthodontic Clinic of Ihsan Mumtaz Hospital, Lahore and PCSIR (Lahore). Period: 6 months from June 2018 to December 2018. Material and Methods: 60 human maxillary premolars were randomly divided into 2 groups of 30 each. Group-I was bonded with conventional etching primer + composite and Group-II was bonded with self etch primer + composite. Shear bond strength was measured through Ionstron force testing machine. Statistical Analysis: For each variable, shear bond strength, arithmetic mean, standard deviation, minimum and maximum values were calculated. t-test was used to compare the shear bond strength (SBS) of the two groups and P value less than and equal to 0.05 was considered significant. Results: The mean shear bond strength in group 1 and group II was10.5MPa and 7.36MPa respectively. Conclusion: The shear bond strength of Conventional etching primer + adhesive was significantly higher than the shear bond strength of self etch primer +adhesive group.


2021 ◽  
Vol 15 (9) ◽  
pp. 2873-2875
Author(s):  
Mudassar Nazzar ◽  
Muhammad Adeel-Ur- Rehman ◽  
Rizwan Anwar ◽  
Omer Farooq Tanveer ◽  
Muhammad Abdul Hanan ◽  
...  

Objectives: To compare the complications and outcomes of lateral entry pin fixation with medial and lateral pin fixation for Gartland type III supracondylar fractures of humerus. Methodology: This prospective comparative study involving 190 patients of Gartland type III close supracondylar fractures were included. from March-2019 to Dec-2020. In all patients, initially the elbow was mobilized using the splint placed above the elbow joint at 30 to 45 degrees’ flexion. After closed reduction, lateral pinning was applied in group I and in group II lateral and medial cross pinning was applied using the standard protocol. Patients were followed for iatrogenic ulnar nerve injury, radiologic and function outcomes in-terms of loss of reduction, elbow range of motion, loss in carrying angle and functional outcomes. Results: The two groups were comparable for loss of elbow range of motion, loss of carrying angle and loss of Bauman's angle. On clinical examination, immediate post-operative ulnar nerve injury was diagnosed in 4 (4.2%) cases in group II and in no patient in group I (p-value 0.12). Satisfactory functional outcomes were achieved in 85 (89.5%) patients in group I and in 88 (92.6%) patients in group II (p-value 0.44). Conclusion: Lateral pinning provided stable fixation clinically and radiologically as compared to lateral and medial cross pinning. Keywords: Supracondylar fracture of Humerus, Iatrogenic ulnar nerve injury, Lateral pin entry, lateral and medial cross pin entry.


2021 ◽  
Vol 15 (7) ◽  
pp. 2289-2291
Author(s):  
Jahangir Anjum ◽  
Talal Safdar ◽  
Muhammad Imran ◽  
Muazzam Fuaad ◽  
Waheed Iqbal ◽  
...  

Objective: The aim of this study is to determine the comparison of adverse outcomes in cirrhotic and non-cirrhotic patients presented with coronavirus disease. Study Design: Place and Duration: The department of Medicine of Divisional Headquarters Teaching Hospital Mirpur Azad Kashmir and Mohiuddin Teaching Hospital, Mirpur AJK for six months during the period from October 2020 to March 2021. Methodology: Total 80covid-19 patients of both genders with or without chronic liver disease were enrolled in this study. Patients were aged between 20-55 years. Patients were divided in to two groups. Group I (with cirrhosis 40 patients) and group II (without cirrhosis 40 patients). Outcomes in term of mortality between both groups were examined. All the data was analyzed by SPSS 26.0 version. Results: There were 24 (60%) males and 16 (40%) were females with mean age 44.19±7.65 years in group I while in group II 27 (67.5%) and 13 (32.5%) patients were males and females with mean age 43.62±5.34 years. We found that mortality rate among patients of group I (cirrhotic) had high mortality rate13 (32.5%) as compared to patients without cirrhosis 5 (12.5%) in group II with p-value 0.0003. Conclusion: We concluded in this that frequency of adverse outcomes was significantly high among cirrhotic patients with coronavirus disease as compared to non-cirrhotic patients. Keywords: Corvid-19, Mortality, Chronic Liver Disease


2021 ◽  
Vol 26 (2) ◽  
pp. 150-157
Author(s):  
R. R. Farkhshatova ◽  
L. P. Gerasimova ◽  
I. T. Yunusov

Relevance. It is currently relevant to study and compare the effectiveness of the autologous connective tissue grafts and the combination of collagen-based and autologous platelet-rich plasma in the surgical treatment of Miller Class I gingival recessions.Materials and methods. We examined and treated 48 (20 male (41.67%) and 28 female (58.33%)) patients aged from 25 to 40 years with Miller Class I gingival recessions. All gingival recessions were treated surgically using a modified twolayer tunnel technique. The patients were divided into two groups according to the graft type. Group I (24 patients (50%) had a connective tissue graft from the hard palate. Group II (24 patients (50%) used the combination of the autologous platelet-rich plasma and 3D collagen matrix Fibromatrix for the regeneration of oral soft tissues. We removed the sutures on the 14th day. The patients were followed up on the 7th and 14th days and in 1.3 months.Results. 48 Miller Class I gingival recessions were treated between 2018 and 2020. The depth of gingival recessions averaged 3.5 ± 1.13 mm before treatment. The level of the attached keratinized gingiva regarding the cementoenamel junction significantly (p < 0.001) improved in both groups after the surgery. The width and thickness of the keratinized gingiva best increased in group II. The mean effectiveness of gingival recession treatment was 84% in study group I and 96% – in study group II. Pain syndrome, fibrinous plaque and soft tissue edema were insignificant in group II.Conclusion. The combination of the autologous platelet-rich plasma and Fibromatrix, collagen 3D matrix, for the regeneration of the oral soft tissues is a more effective technique for the treatment of Miller Class I gingival recessions. This technique has several advantages. It is minimally invasive, less painful, soft tissue postoperative swelling is less and the received volume of the attached keratinized gums is larger than with a connective tissue graft. 


2018 ◽  
Vol 41 (3) ◽  
pp. 159-164 ◽  
Author(s):  
Madhabi Baidya ◽  
Mahfuza Shirin ◽  
Liton Chandra Saha

Background: Adequate neonatal transport is a key component of care of the sick newborns who require referral to tertiary care center. Poor transportation is one of the iatrogenic factors associated with greater neonatal mortality. Neonatal transport is the greatest challenge faced today in our country. The purpose of this study was to find out characteristics of transport of referred neonates and to idention the factors that contribute to mortality.Methodology: This cross sectional study was conducted in Dhaka Shishu (Children) Hospital from June 2013 to November 2013. Both term and preterm neonates who were referred within first seven days of life were included and those with gross congenital abnormalities and left against medical advice were excluded from the study. After enrollment, data were collected using a structured questionnaire including birth details, interventions before transportation, reasons for referral, and details of transportation. Outcome & duration of hospital stay were also recorded. Neonates who were expired considered as group I and who were survived considered as group II. The study variables were analyzed for their association with immediate outcome by applying chi square test and t test. P value <0.05 was considered significant.Results: This study found that out of 332 neonates 181 were expired with 54.5% mortality rate. One eighty one neonates who were expired, considered as group I and one fifty one neonate were survived, considered as group II. The mortality was significantly high in male neonates [RR 0.80 (0.66-0.97)] and neonates those delivered at home [RR 1.34(1.10-1.64)] (p<0.05). Perinatal asphyxia, pre-term low birth weight, neonatal sepsis were the main causes of referral. It was found that transportation without any referral note [RR 1.40 (1.14- 1.71)], no advice regarding maintenance of airway[RR 1.50(1.17- 1.92)]and keeping warm [RR 1.51(1.17-1.950], resuscitation on admission [RR 1.63(1.23-2.17)] and transportation required > 3hours [RR 1.36(1.09-1.69)] were associated with significantly higher mortality among referred transported neonates(p<0.05).Conclusions: This study found that male neonates, home delivery, transportation without any referral note, no advice regarding maintenance of airway and keeping warm, resuscitation needed on admission and prolonged transportation time were significantly associated with mortality of referred transported neonates.Bangladesh J Child Health 2017; VOL 41 (3) :159-164


2021 ◽  
Author(s):  
Shivkumar Gopalakrishnan ◽  
sangeetha kandasamy ◽  
S.Malini ◽  
S.Peer Mohamed ◽  
k.velmurugan

Abstract Background. Approximately 5% of COVID-19 patients suffer near fatal disease. Clinical and radiologic features may predict severe disease albeit with limited specificity and radiation hazard. Laboratory biomarkers are eyed as simple, specific and point of care triage tools to optimize management decisions.This study aimed to study the role of inflammatory markers in prognosticating COVID-19 patients.Methodology. A hospital based retrospective study was conducted on COVID-19 adult inpatients classified into three groups as mild disease-recovered [Group I], severe disease-recovered [Group II] and dead [Group III]. Categorical outcomes were compared using Chi square test. Univariate binary logistic regression analysis was performed to test the association between the explanatory and outcome variables. Unadjusted OR along with 95% CI was calculated. The utility of lab parameters (Ferritin, LDH, D dimer, N/L ratio and PLT/L ratio) in predicting severity of COVID-19 was assessed by Receiver Operative Curve (ROC) analysis. P value < 0.05 was considered statistically significant.Results. The mean age was 49.32 +/- 17.1 years. Among study population, 378 were Group I, 66 Group II, and 56 Group III. Median levels of Ferritin among the 3 groups were 62ng/mL, 388.50 ng/mL and 1199.50 ng/mL. Median value of LDH were 95U/L, 720 and 982.50(p <0.001). D-dimer values of 3 groups were 23.20ng/mL, 104.30 ng/mL and 197.10 ng/mL (p <0.001). CRP done qualitatively was positive in 2 (0.53%), 30 (45.45%) and 53 (94.64%) of patients. The odds of patients suffering severe COVID-19 rose with rising values of ferritin, LDH and D-dimer [unadjusted OR 1.007, 1.004 &1.020]Conclusion. One time measurement of serum ferritin, LDH, D-dimer and CRP is promising to predict outcomes for COVID 19 inpatients. Single qualitative CRP was equally good but more cost effective than quantitative CRP. The most specific combination was NLR, Lymphocyte percentage and D-dimer levels done between 7th – 10th day of symptoms.


2009 ◽  
Vol 66 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Drenka Turjacanin-Pantelic ◽  
Dragana Bojovic-Jovic ◽  
Biljana Arsic ◽  
Eliana Garalejic

Background/Aim. A modern approach to surgical treatment of tuboperitoneal infertility is based on laporascopic techniques. The aim of this study was to compare results of tuboperitoneal infertility treatment by the use of laparoscopy and classical laparotomy. Methods. A retrospectiveprospective study on 66 women treated operatively form tuboperitoneal infertility was performed. Data from patient's anamnesis and those related to the surgical treatment results, obtained by the use of an inquiry, were used in retrospective and prospective analysis, respectively. Chi-square test was used in statistical analysis. P value < 0.05 was considered significant. Results. Classical laparotomy was used on 34 women in a period from 1996 to 1997, while 32 women were operated laparoscopically in a period from 1999 to 2000. The results were as follows: a total number of conceived women was 16 (24%), seven in the group I (20.6%) and nine in the group II (28.1%); 13 women were with one pregnancy, six in the group I (17.6%) and seven in the group II (22%). Twice pregnant were three women, one in the group I (2.9%) and two in the group II (6.2%). The resulting pregnancies were: five women with abortion spontaneous, two in the group I (5.9%) and three in the group II (9.4%); two women with extrauterine pregnancy in the group I (5.9%); three with pretemporal birth, one in the group I (2.9%) and two in the group II (6.2%), while six women were with the temporal birth, two in the group I (5.9%) and four in the group II (12.5%). Statistical analysis showed that there was no significant difference in the results between these two groups. Conclusion. Surgical treatment of tubeperitoneal infertility, regardless of the used methods (classical laparotomy or laparoscopy) was successful in a great number of women. These methods have a great advantage over in vitro fertilization, and they should not be ignored.


2016 ◽  
Vol 17 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Vineet Kini ◽  
Dilip G Nayak ◽  
Ashita S Uppoor

ABSTRACT Background Guided tissue regeneration (GTR) therapy has shown good results in the management of mandibular molar class II furcation defects. Advances in biomaterial sciences have developed alloplastic bone replacement graft materials and bioabsorbable GTR barrier membranes with good biologic response and handling properties. The aim of this study was to compare the attachment gain and the bone fill obtained with an alloplast [biphasic calcium phosphate (BCP) 60% hydroxyapatite (HA) and 40% beta tricalcium phosphate (β-TCP)] with and without a bioabsorbable GTR barrier [flowable poly (DL-lactide) (PLA) dissolved in N-methyl-2- pyrrolidone (NMP)] in the treatment of mandibular molar class II furcation defects. Materials and methods A total of 20 class II furcation defects were treated in 16 patients with chronic periodontitis in a comparative study. Ten defects were treated with Camceram® (BCP 60% HA and 40% – TCP) bone replacement graft material (group I) and 10 defects with a combination of Camceram® bone replacement graft material with Atrisorb® Freeflow™, bio-absorbable GTR barrier (flowable PLA dissolved in NMP) (group II). At baseline and at 6 months postsurgery, clinical parameters of vertical probing depth (PD) and horizontal probing depth (P-H), clinical attachment level (CAL), gingival recession (GR), and vertical depth of furcation defect (VDF) and horizontal depth of furcation defect (BP-H) were evaluated. Results Statistical analysis was done with the Statistical Package for Social Sciences (SPSS) program. Intergroup comparisons made at 6 months postsurgery by unpaired Student's t-test showed mean reduction in PD in group I was 3.10 ± 0.73 mm and in group II was 3.20 ± 1.03 mm (p > 0.05). Mean reduction in P-H in group I was 1.60 ± 0.69 mm and in group II was 1.90 ± 0.73 mm (p > 0.05). Gain in CAL in group I was 2.80 ± 1.03 mm and in group II was 2.90 ± 0.94 mm (p > 0.05). Change in GR in group I was .0.30 ± 0.48 mm and in group II was .0.30 ± 0.48 (p > 0.05). Reduction in VDF in group I was 1.30 ± 0.67 mm and in group II was 1.80 ± 0.63 mm (p . 0.01). Reduction in BP-H in group I was 1.30 ± 0.67 mm and in group II was 1.90 ± 0.73 mm (p . 0.05). Conclusion It was concluded that the combination technique of BCP alloplast with a flowable bioabsorbable GTR barrier led to better results in regard to defect bone fill as compared with when the BCP alloplast alone was used. How to cite this article Kini V, Nayak DG, Uppoor AS. A Clinical Evaluation of Biphasic Calcium Phosphate Alloplast with and without a Flowable Bioabsorbable Guided Tissue Regeneration Barrier in the Treatment of Mandibular Molar Class II Furcation Defects. J Contemp Dent Pract 2016;17(2):143-148.


Revista CEFAC ◽  
2021 ◽  
Vol 23 (3) ◽  
Author(s):  
Cláudia da Silva ◽  
Patrícia do Valle Alves

ABSTRACT Purpose: to compare vocabulary performances and verify the lexical competence of students with and without difficulties learning to read and write. Methods: 93 first-grade students were divided into Group I (50 students without difficulties) and Group II (43 students with difficulties learning to read and write). They were administered the Child Language Test focusing on vocabulary. The analysis considered aspects of usual word designation, non-designation, and substitution process. The data analysis was conducted with the Mann-Whitney test, with a p-value ≤ 0.05. Results: there were significant performances in the comparison between the groups in all the conceptual fields analyzed. There was no significance for either group regarding the conceptual fields of Foods, Furniture and Appliances, Places, and Professions in non-designation; regarding Means of Transportation in substitution processes; regarding Toys and Musical Instruments in both non-designation and substitution processes. Group I had higher means than Group II in usual word designation, and lower ones in non-designation and substitution processes. Conclusion: students with difficulties learning to read and write had greater difficulties in usual word designation, as well as higher error indexes in substitution processes and non-designation, which reveals a deficient vocabulary concerning lexical access in comparison with students without difficulties.


2021 ◽  
Vol 15 (9) ◽  
pp. 2948-2951
Author(s):  
Mehwish Syed ◽  
Afrah Aman ◽  
Saeeda Safi ◽  
Rabia Nawaz ◽  
Asia Habib ◽  
...  

Objective: The aim of this study is to compare the effectiveness of intrauterine balloon tamponade and B lynch suture for management of severe postpartum hemorrhage. Study Design: Randomized Control trial Place and Duration: The study was conducted at Gynae & Obs department of Qazi Hussain Ahmad Medical Complex, Nowshera KPK for six months duration from January to 2021 to June 2021. Methods: There were one hundred and twenty patients with ages 20-45 years were presented in this study. All women had severe postpartum hemorrhage were included in this study. Demographically detailed of enrolled cases age, body mass index, gestational age and parity were recorded after taking informed written consent. Patients were equally divided into 2-groups I and II. Group I had 60 patients and received Lynch suture while in group II 60 patients received intrauterine balloon tamponade. Post-operative success rate among both groups were assessed and compared in terms of bleeding control within 10-15 minutes. SPSS 24.0 version was used to analyze the complete data. Results: In group I mean age was 29.09±2.53 years with mean BMI 25.11±7.64 kg/m2 while in group II mean age was 29.02±3.62 years with mean BMI 24.87±6.32 kg/m2. Mean gestational age in group I was 37.87±3.29 weeks and in group II mean gestational age was 38.19±6.41 weeks. Mean parity in group I was 4.03±1.19 and in group II it was 4.01±0.87. Frequency of success rate in group I was significantly higher among 54 (90%) cases as compared to group II 39 (65%) with p value < 0.05. We found that patients of group I was significantly satisfied than that of patients who received intrauterine balloon tamponade. Conclusion: In this research we concluded that lynch suture for the management of severe postpartum hemorrhage among females had higher effectiveness in terms of bleeding control within 15 minutes and with higher satisfaction among patients as compared to those females who received intrauterine balloon tamponade. Keywords: Postpartum hemorrhage, Lynch Suture, intrauterine balloon tamponade, Success Rate


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