scholarly journals Effect of Different Cavity Disinfectants on Microleakage

2021 ◽  
Vol 10 (44) ◽  
pp. 3752-3756
Author(s):  
Samican Unal ◽  
Sema Yazici Akbiyik ◽  
Elif Pinar Bakir ◽  
Seyhmus Bakir
Keyword(s):  
Third Molar ◽  
Control Group ◽  
Universal Adhesive ◽  
Class V ◽  
Nail Polish ◽  
Significant Difference ◽  
Negative Effect ◽  
Oxygenated Water ◽  
Molar Teeth ◽  
Group 1

BACKGROUND Cavity disinfectants are frequently used for the elimination of bacteria that remain in the cavity, which are shown as the cause of secondary caries. However, its effect on microleakage from the tooth-restoration interface is still under investigation. The purpose of this study was to compare and evaluate the effects of the use of three different cavity disinfectants on microleakage in Class V composite restorations. METHODS For this study, 28 permanent third molar teeth without caries and restoration were used. Class V cavities of 4 mm x 3 mm x 3 mm were prepared on the buccal surfaces of each tooth. The teeth were randomly divided into 4 groups, with 7 teeth in each group. No cavity disinfectant was applied to the teeth in group 1. Tubulicid Red Label (Dental Therapeutics AB, Sweden) cavity disinfectant was applied to the 2nd group teeth, Cavity Cleanser (BISCO Inc., USA) cavity disinfectant to the 3rd group teeth, and Oxygenated Water (Dermosept, Turkey) cavity disinfectant to the 4th group teeth. Composite resin with universal adhesive and nanohybrid filler was applied to all samples in the groups in accordance with the recommendations of the manufacturers, and finishing and polishing processes were performed. Then, the thermal cycle (NOVA, Konya, Turkey) procedure was applied. After the restorations were covered with nail polish, they were kept in a 5 % basic fuchsin solution. The teeth were cut vertically in the buccolingual direction and examined with a stereomicroscope at x 40 magnification. The results were statistically evaluated with Kruskal-Wallis and Mann-Whitney U tests. RESULTS When the microleakage scores were compared between the control group and the groups treated with Tubulicid Red Label (p:0.204), Cavity Cleanser (p:0.204) and Oxygenated Water (P: 0.788), it was determined that there was no statistically significant difference (P > 0.05). CONCLUSİONS It was determined that different cavity disinfectants applied in Class V cavities did not have a negative effect on microleakage and the closest results to the control group were seen in the group where cavity cleanser disinfectant containing 2 % chlorhexidine digluconate was applied. KEY WORDS Cavity Disinfectants, Class V Cavity, Microleakage.

scholarly journals Objective assessment of stiffness in Achilles tendinopathy: a novel approach using the MyotonPRO

2018 ◽  
Vol 4 (1) ◽  
pp. e000446 ◽  
Author(s):  
Gafin Ericson Morgan ◽  
Rhodri Martin ◽  
Lisa Williams ◽  
Owen Pearce ◽  
Keith Morris
Keyword(s):  
Dynamic Stiffness ◽  
Objective Assessment ◽  
Weight Bearing ◽  
Achilles Tendinopathy ◽  
Control Group ◽  
Asymptomatic Group ◽  
Musculotendinous Junction ◽  
Significant Difference ◽  
Group 2 ◽  
Group 1

ObjectivesThe aim of this study was to establish quantitative values for asymptomatic and symptomatic Achilles tendons.DesignCohort study with a single (cross-sectional) time point of patients diagnosed with unilateral Achilles tendinopathy and an asymptomatic group with comparative homogeneity.MethodsA sample of 50 participants: 25 diagnosed with symptomatic unilateral Achilles tendinopathy (AT group) and 25 with asymptomatic Achilles tendons (control group 2). The asymptomatic side of the AT group was used as a control (control group 1). Measurements at 2 cm intervals on the tendon from its insertion at the calcaneum up to the musculotendinous junction were taken non-weight bearing (NWB) and weight bearing (WB) using the MyotonPRO.ResultsThere was a significant (p<0.005) decrease in natural oscillation frequency (F) at points 2, 3 and 4 of the AT group (NWB condition) and points 2 and 3 for the WB condition. There was a significant (p<0.005) increase in logarithmic decrement (D) at points 2 and 3 signifying a decrease in elasticity. Dynamic stiffness (S) was significantly (p<0.005) reduced in the AT group at points 2 and 3 WB and point 3 WB. There was no significant difference in creep (C) observed between the symptomatic and asymptomatic tendons. There was a significant (p<0.005) increase in mechanical stress relaxation time (R) at point 2 NWB.There was a correlation between body weight and gender on tendon mechanics, with the symptomatic tendons. No significant differences were observed between the control group 1 and control group 2.ConclusionsThe MyotonPRO measured decreased stiffness over a section of the tendon corresponding clinically with Achilles tendinopathy. This may have potential in identifying risk of injury and informing rehabilitation, however further extensive research is required to generate baseline data for specific population groups monitoring variables over time. Age, gender and body mass index appear to have some bearing on the mechanical properties of the tendon but mainly in the tendinopathy group.

scholarly journals Effect of Varicocelectomy on the Frequency of Nocturnal Sperm Emissions

2015 ◽  
Vol 10 (3) ◽  
pp. 250-253
Author(s):  
Cengiz Kara ◽  
Ozgu Aydogdu ◽  
Ural Oguz ◽  
Mehmet Giray Sönmez
Keyword(s):  
Inguinal Hernia ◽  
Depression Score ◽  
Control Group ◽  
Hormone Levels ◽  
Significant Difference ◽  
Younger Men ◽  
Serum Hormone ◽  
Postoperative Serum ◽  
Group 2 ◽  
Group 1

The aim of this study was to investigate the frequency of nocturnal sperm emissions (NSE) in varicocele patients after varicocele surgery. A total of 127 patients, 96 varicocele (Group 1) and 31 patients with inguinal hernia (Group 2) were included in this study. Mean age, laterality of surgical procedures, spermiogram results, marital status, and postoperative serum hormone levels were noted for all patients. Two groups were compared in terms of Beck depression score (BDS) and anxiety scores (AS). The frequency of NSE and libido changes in the patients during 10 days postoperatively was evaluated. The number of the patients who had NSE and increased libido were significantly higher in the varicocelectomy group when compared with the control group. No significant difference was noted between the groups in terms of BDS, AS, and serum hormone levels. No association was reported between BDS, AS, and serum hormone levels and the presence of NSE in Group 1. The incidence of NSE was higher in younger men. Increased libido was significantly associated with NSE in Group 1. Cord dissection during surgery may be a factor on increased frequency of NSEs in varicocele patients.

scholarly journals Effect of Proteolytic Agents on Microleakage of Etch and Rinse Adhesive Systems

2017 ◽  
Vol 16 ◽  
pp. 1-11
Author(s):  
Shahin Kasraei ◽  
Ebrahim Yarmohammadi ◽  
Maryam Farhadian ◽  
Mona Malek
Keyword(s):  
Phosphoric Acid ◽  
Nd:Yag Laser ◽  
Control Group ◽  
Single Bond ◽  
Adhesive Systems ◽  
Class V ◽  
Dentin Surface ◽  
Composite Restorations ◽  
Etch And Rinse ◽  
Significant Difference

Objective: this study aimed to assess the effect of treatment of phosphoric acid etched dentin surface with 5% bromelain enzyme and Nd:YAG laser prior to the use of etch and rinse adhesive systems on microleakage margins of class V composite restorations. Materials and Methods: sixty sound premolar teeth were selected. Standard class V cavities were prepared in the buccal and lingual surfaces of each teeth. Preparation in that way 1 mm of the cavity was above and 1 mm of it was below the cementoenamel junction. The teeth were then randomly divided into three groups including 20 teeth(40cavities  in each gorup). Two ethanol base etch and rinse system (Adper Single Bond and OptiBond Solo) was applied in each group. In the control group, cavities were etched with 37% phosphoric acid. Adper Single Bond was applied to 20 and OptiBond Solo was applied to the remaining 20 cavities and they were restored with Z250 composite (n=40). The same procedures were performed in bromelain and Nd:YAG laser groups with the difference that prior to the application of adhesive, aqueous 5% bromelain was applied in bromelain group while Nd:YAG laser was irradiated in laser group. All teeth were thermocycled and their apices were sealed with sticky wax. The tooth surfaces were coated with nail varnish except for 1 mm around the restoration margins, and the teeth were then immersed in fuchsine and sectioned by a diamond disc into mesial and distal halves. Marginal microleakage at both sides was determined and scored under a stereomicroscope at x40 magnification. Then data were analyzed using the Kruskal Wallis and Mann Whitney tests (α=0.05). Results: according the result of Mann Whitney test, Cervical margins showed significantly higher microleakage than the occlusal margins (P=0.000) but no significant difference was noted in microleakage of occlusal (P=0.362) or gingival (P=0.147) margins among the three groups by Kruskal Wallis test. Conclusion: in conclusion, application of proteolytic agents(5% bromelain solution and Nd:YAG laser)  on acid-etched dentin surface prior to the application of adhesive has no significant effect on marginal microleakage of class V composite restorations. 

scholarly journals Effects of COX 1-2 Inhibitors on Prevention of Rocuronium Injection Pain: Controlled, Randomised, Double Blind Study

2021 ◽  
Author(s):  
Mehmet Sahap ◽  
Handan Gulec ◽  
Esra ozayar ◽  
Ozlem zdemir ◽  
Merve Kacan ◽  
...  
Keyword(s):  
General Anesthesia ◽  
Control Group ◽  
Anesthesia Induction ◽  
Movement Response ◽  
Rocuronium Bromide ◽  
Cox Inhibitors ◽  
Significant Difference ◽  
Group 2 ◽  
Withdrawal Response ◽  
Group 1

Purpose : Rocuronium bromide is a painful agent while general anesthesia induction. The aim of the study is to investigate the effects of cox inhibitors as a resque agent against the rocuronium pain Methodology : Sixty patients enrolled for the general anesthesia enrolled in this study. Patients were allocated into two groups (Group 1: Dexkethoprofen group, Group 2: Control group) .Pain was evaluated by during rocuronium injection, patients were scored by a scale showed below. 0;No movement response to injection 1;Mild movement response to injection 2;Hand withdrawal response to injection 3;Arm withdrawal response to injection We also evaluated the pain with 2 questions when the patient was in the recovery room.Question 1.What was the last feeling before you fall into sleep? and question 2. Did you feel any pain on your hand during medication injection for anesthesia? Results:There were differences between the groups in terms of total pain score for example in group 1 there were 16 (53%) patients who did not make any movement during rocuronium injection while there were 22 (73%) patients in group 2.There was significant difference in injection rocuronium bromide pain between group 1: dexkethoprofen group, Group 2: control group in terms of the answer to the second question.Patients felt less pain than the control group. Conclusion:The effect of cox inhibitors on rocuronium pain was seen in our study but check is also effective in reducing pain in vascular width.

scholarly journals THE EFFECT OF SCIENCE LEARNING MODEL, ENVIRONMENT, TECHNOLOGY, AND SOCIETY ASSISTED BY ENVIRONMENTAL MEDIA ON SCIENCE KNOWLEDGE COMPETENCE OF GRADE V ELEMENTARY SCHOOL STUDENTS OF SRIKANDI CLUSTER EAST DENPASAR IN ACADEMIC YEAR 2017/2018

2018 ◽  
Vol 2 (2) ◽  
pp. 100
Author(s):  
Putu Suwi Arista dewi ◽  
I N Jampel ◽  
I N L Jayanta
Keyword(s):  
Statistical Analysis ◽  
Science Learning ◽  
Learning Model ◽  
Choice Test ◽  
Control Group ◽  
Class V ◽  
Environmental Media ◽  
Significant Difference ◽  
Experimental Group ◽  
Model Environment

This study aims to determine the effect of Science Learning Model, Environment, Technology, Society assisted Environmental media on Science Competence of grade V students. The type of this research was quasi experiment with non-equivalent group design. The population in this study was the entire class V in the Srikandi cluster East Denpasar amounted to 362 students. The sample of this research was class V of SDN 5 Sumerta were 28 students as experimental group and class V of SDN 10 Sumerta were 28 students as control group. Data collected with multiple choice test instruments, then was analyzed using descriptive statistical analysis and inferential statistical analysis (t-test). Based on the data analysis, tcount = 2.500 and ttabel (5% significance level) = 2,000. This means that tcount = 2,500> ttabel = 2,000. There was a significant difference of science competence between groups of students who was taught by science learning model, Environment, Technology, Society assisted Environmental media and group of students which is learn through conventional learning. The average value of science competence of the experimental group ( ) is 79.00 while the mean score of control group students ( ) is 74.07. This means =79,00 > =74,07, so it can be concluded that the application of learning model of Science, Environment, Technology, Society assisted Environmental media influenced the competence of science. Based on the results of this study it is suggested that the results of this study can be used as a relevant study, especially as supporting the next research.

scholarly journals Effect of Diode Laser (810 nm) Irradiation on Marginal Microleakage of Multi-mode Adhesive Resins in Class V Composite Restorations

2019 ◽  
Vol 10 (4) ◽  
pp. 275-282
Author(s):  
Niusha Golbar ◽  
Shahin Kasraei ◽  
Anahit Afrasiabi ◽  
Elahe Mostajir ◽  
Seyed Masoud Mojahedi
Keyword(s):  
Diode Laser ◽  
Resin Composite ◽  
Control Group ◽  
Blue Dye ◽  
Adhesive Systems ◽  
Universal Adhesive ◽  
Class V ◽  
Composite Restorations ◽  
Self Etch ◽  
Multi Mode

Introduction: Some studies have shown that laser irradiation on unpolymerized adhesives can improve composite-dentin adhesion. The aim of the present study was to evaluate the effect of the diode laser (810 nm) on the microleakage of multi-mode adhesive systems at enamel and dentin margins of composite restorations. Methods: Classic class V boxes were prepared on 48 sound premolar teeth and randomly divided into 6 groups (n=16). In the control groups, Scotchbond Universal (SBC), G-Premio (GBC), and Ambar U (AMC) were used by a self-etch mode. In the test groups (SBL, GBL, ABL), the 810 nm diode laser was irradiated (1 W) for 10 seconds before the polymerization of the adhesive. The boxes were restored by the resin composite. After finishing and polishing, the samples were thermocycled (5°C to 55°C) for 1000 cycles and then immersed in 0.1% methylene blue dye (48 hours). Dye penetration through the gingival and occlusal margins was measured by Stereomicroscope. The data were analyzed at the 5% significance level using Kruskal-Wallis and Mann-Whitney U tests. Results: Significant differences were found between the control and test groups (P<0.05). The occlusal margins of the SBL and GBL groups and the cervical margin of the SBL group exhibited the lowest microleakage (P<0.05). The AM control group showed maximum microleakage at cervical and occlusal margins. Conclusion: The irradiation of the 810 nm diode laser on the unpolymerized universal adhesive systems in a self-etch mode caused a significant reduction in enamel and dentin marginal microleakage of composite restorations.

Effect of Preoperative Single Dose Dexamethasone Injection in Masseter Muscle on Postoperative Sequelae Following Lower Impacted Third Molar Surgery

2021 ◽  
Author(s):  
Mehrzad Moghadasi ◽  
Arash Golestaneh ◽  
Arash Ghodosi ◽  
Shayan Golestani
Keyword(s):  
Masseter Muscle ◽  
Third Molar ◽  
Control Group ◽  
P Value ◽  
Surgical Removal ◽  
Third Molars ◽  
Bony Tissue ◽  
Oral Aperture ◽  
Significant Difference ◽  
Facial Swelling

Introduction: The surgical removal of impacted lower third molars involves trauma to soft and bony tissue and can result in pain, swelling and trismus. The purpose of this study was to evaluate the efficacy of dexamethasone, as a single 4 mg dose injected into the masseter muscle prior to extraction of impacted lower third molars on theses postoperative sequelae.   Materials & Methods: This prospective, randomized clinical research consisted of 43 healthy patients. The study group received 4 mg dexamethasone into the masseter muscle via intrabuccal approach immediately before starting the procedure while the control group received no corticoid. 7 days after surgery. Data were analyzed using t-test (α = 0.05).   Results: The patients administered dexamethasone showed superior results after surgery in terms of oral aperture, pain and all the facial swelling parameters, with statistically significant differences versus the controls (p value<0.001). Also there was statistically significant difference in terms of patients trismus between case and controlgroups (p value<0.001).   Conclusion: The results obtained showed that 4 mg of dexamethasone injected into the masseter muscle in the immediately before starting the procedure significantly reduces swelling, trism us and pain.  

Effect of Cryotherapy & Active Stretching Together and Active Stretching Alone for Improving Hamstring Flexibility in Asymptomatic Individuals

2021 ◽  
Vol 11 (6) ◽  
pp. 342-348
Author(s):  
Nishat Tabassum ◽  
Sanghamitra Jena
Keyword(s):  
Control Group ◽  
Test Results ◽  
Post Intervention ◽  
Study Objective ◽  
Significant Difference ◽  
Group 2 ◽  
Hamstring Flexibility ◽  
Asymptomatic Individuals ◽  
Post Assessment ◽  
Group 1

Study Objective: To know about the effects of cryotherapy and active stretching together and active stretching alone for improving hamstring flexibility in asymptomatic individuals. Method: 22 subjects were participated in study of the age 18 to 40. Subjects were randomly and equally assigned to static stretching and cryotherapy (group 1) and only active stretching (group 2). Subjects in each group were given stretching and cryotherapy for three weeks. Pre and post assessment of ROM was measured by the KEA, SLR and Sit and reach test. Results: After three weeks of intervention there was a significant difference between pre intervention and post intervention score in both the group but in group 1 showed significant difference between KEA, SLR and SRT variables. Conclusion: Subject who received active stretching and cryotherapy showed better improvement than the control group who received only active stretching. Hence it can be concluded that active stretching along with cryotherapy can improve hamstring flexibility than the active stretching only. Key words: Cryotherapy, flexibility, ROM, active stretching.

Investigation of TAp63 gene Expression and Follicle Count Using Melatonin in Cisplatin-induced Ovarian Toxicity

2020 ◽  
Author(s):  
Hacı Öztürk Şahin ◽  
Mehmet Nuri Duran ◽  
Fatma Sılan ◽  
Ece Sılan ◽  
Duygu Sıddıkoglu ◽  
...  
Keyword(s):  
Gene Expression ◽  
Female Rats ◽  
Histological Evaluation ◽  
Saline Control ◽  
Control Group ◽  
Ovarian Toxicity ◽  
Significant Difference ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Abstract Background: Premature ovarian failure is among the most important side effects of chemotherapy during reproductive period. Preserving ovarian function is gradually gaining importance during oncologic treatment. The present study aims to investigate the potential of melatonin to protect from cisplatin-induced ovarian toxicity in rats. Twenty nine female rats were divided to three groups: Saline control group (Group 1), cisplatin group (Group 2), and cisplatin+melatonin group (Group 3). While the rats in Groups 2 and 3 were administered 5 mg/kg single dose of cisplatin via intra-peritoneal (IP) route, the rats in Group 3 were started on melatonin (20 mg/kg IP) before cisplatin administration and continued during 3 consecutive days. Ovaries were removed one week after cisplatin administration in all groups. Blood samples were obtained before the rats were decapited. Histological evaluation, follicle count, and classification were performed. TAp63 mRNA expression was evaluated using mRNA extraction and real-time polymerase chain reaction (PCR) method. Serum estradiol (E2) and anti-mullerian hormone (AMH) values were measured with enzyme immune-assay technology. Results: While primordial follicles were seen to decrease in Group 2 as compared to Group 1 (p:0.023), primordial follicle count was observed to be preserved significantly in melatonin group as compared to Group 2 (p:0.047). Moreover, cisplatin-induced histo-pathological morphology was preserved in favor of normal histology in melatonin group. A significant difference was not observed between groups with regard to mean serum AMH and E2 values (p:0.102 and p:0.411, respectively). While TAp63 gene expression significantly increased in Group 2 as compared to control group (p:0.001), we did not detect a statistically significant difference in cisplatin+melatonin group, although gene expression decreased (p:0.34). Conclusion: We conclude that concurrent administration of melatonin and cisplatin may protect from ovarian damage.

Effect of Endocrowns on Fracture Strength and Microleakage of Endodontically Treated Primary Molar Teeth

2019 ◽  
Vol 10 (2) ◽  
pp. 113-119
Author(s):  
Tarek Seddik ◽  
Sera Derelioglu
Keyword(s):  
Fracture Strength ◽  
Compressive Loading ◽  
Class Ii ◽  
Control Group ◽  
Second Primary ◽  
Endodontically Treated Teeth ◽  
Primary Molar ◽  
Molar Teeth ◽  
Group 2 ◽  
Group 1

Objectives: Optimal restoration of endodontically treated teeth is very important for the durability of the endodontic treatment. The focus of this study was to evaluate the fracture strength and microleakage of composite endocrowns compared with Class II composite restorations in endodontically treated primary molar teeth. Materials and Methods: 48 extracted second primary molars were divided into 2 groups. Group 1 (control): teeth with Class II and endodontic access cavities restored with G-aenial composite; group 2: endocrown restorations with G-aenial composite. After completing restorative procedures, teeth were subjected to thermal cycling (500 cycles). Compressive loading was applied to half of the samples, although the other half were immersed in 0.5% basic fucsin solution for 24 h, sectioned, and examined for dye penetration under stereomicroscope. Data were subjected to statistical analysis by the Mann-Whitney U test (α = 0.05). Results: The fracture strength of endocrowns (1741 ± 379.35 N) was significantly higher than that of the control group (1126.5 ± 405.39 N) ( P < .05). No statistical difference was found in microleakage between the 2 groups ( P > .05). Conclusion: Endocrown preparation increases the fracture strength of the final composite restoration when used in primary molar teeth. Composite endocrown restorations can be a practical and an esthetic option for restoring endodontically treated primary molar teeth.

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