Effect of Refurbishing Amalgam and Resin Composite Restorations After 12 Years: Controlled Clinical Trial

SUMMARY Objectives: The aim of this study was to clinically evaluate posterior amalgam and resin composite restorations refurbished over a period of 12 years by investigating the influence of refurbishing on the survival of restorations and comparing their behaviors with respect to controls. Methods and Materials: Thirty-four patients were enrolled, ages 18 to 80 years, with 174 restorations, 48 restorations of resin composite (RC), and 126 restorations of amalgam (AM). Restorations with localized defects in anatomy, roughness, luster, or marginal staining that were clinically judged as suitable for refurbishing according to US Public Health Service (USPHS) Ryge criteria were assigned to group A—refurbishing (n=85; 67 AM, 18 RC)—or group B—control (n=89; 59 AM, 30 RC); the quality of the restorations was evaluated blindly according to the modified USPHS criteria. Two observers conducted evaluations at the initial state (k=0.74) and after one to five, 10, and 12 years (k=0.88). Wilcoxon, Friedman, and Mantel-Cox tests were performed to compare the groups, respectively. Results: After 12 years, both groups experienced a similar decline, except for an evidently better performance in marginal adaptation in RC control (p=0.043) and in anatomy in AM refurbished (p=0.032). Conclusions: After 12 years, no difference was found in the clinical condition and longevity of the refurbished restorations compared to the control group.

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Gamification as an entrepreneur well-being intervention: A study protocol for a single-blinded randomised controlled trial

10.21203/rs.3.pex-1323/v1 ◽

2021 ◽

Author(s):

Waqar M. Naqvi

Keyword(s):

Controlled Trial ◽

Life Quality ◽

Well Being ◽

Likert Scale ◽

Control Group ◽

Group A ◽

Measuring Scale ◽

Group B ◽

Randomised Controlled

Abstract Entrepreneurs usually work for long hours resulting in exhaustion, stress, and burnout. The prevalent symptoms of burnout are reduced levels of physical and mental energy, reduced job efficiency and diminished productivity. Therefore, it is important to improve the health of entrepreneurs. Gamification has a positive relationship with improvements in health and well-being as it influences positive experiences and satisfaction. This trial aims to study how 30-minutes of virtual reality game use via Kinect Azure and Oculus platforms 3-times per week, for 4 weeks, relates to differences in entrepreneur stress, burnout, subjective life quality, and downstream firm performance. We will recruit entrepreneurs over the age of 18 for the gamification analysis. Analysis of previous power using G*Power will determine the sample size. We will divide the participants into 3 groups, wherein Group A will undergo gamification on the Kinect platform, Group B will undergo the Oculus Quest intervention, and Group C will be the control group. We will conduct the study at two sites, one at the HuMen research. The outcome measures include a five-point Likert scale for measuring entrepreneurial stress, burnout-measuring scale (BMS) for burnout, five-point Likert scale for performance and SF-12 for Quality of life. Since current strains pave ways to future accomplishment, entrepreneurs' eudemonic well-being might particularly relate to forward-looking challenge stressors and burnouts. The results will provide an insight into how gamification could help entrepreneurs to deal with work stress and maintain high well-being.

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Randomized Controlled Clinical Trial Comparing Transurethral Eneucleation and Resection of Prostate and Trans-urethral Resection of Prostate in the Management of Benign Prostatic Hyperplasia

BIRDEM Medical Journal ◽

10.3329/birdem.v7i3.33783 ◽

2017 ◽

Vol 7 (3) ◽

pp. 216-220

Author(s):

Md Mehedi Hasan ◽

Samira Rahat Afroze ◽

Muhammad Abdur Rahim ◽

Muhammad Abdus Salam

Keyword(s):

Controlled Trial ◽

Ethical Review ◽

Control Group ◽

Controlled Clinical Trial ◽

Transurethral Resection Of Prostate ◽

Randomized Controlled ◽

Significant Difference ◽

Group A ◽

The Mean ◽

Group B

Background: Transurethral resection of prostate (TURP) is the predominant surgical procedure for benign prostatic hypertension (BPH) but is not devoid of complications like capsular perforation, drop in Hb%, drop in Na+, residual adenoma; hence endeavors are evolving to combat such complications. A newer technique transurethral enucleation and resection of prostate (TUERP) has been devised to solve these problems. This study was designed to compare the safety and the efficacy of newer technique, TUERP with widely practiced TURP Methods: This randomized controlled trial was done at BSMMU, after getting ethical approval from the ethical review committee of the institute, from January to October, 2009. A total of 60 BPH patients were purposively enrolled in this study, after obtaining informed written consent and they were randomized as control, Group A (30 patients, underwent TURP) and experimental group, Group B (30 patients, underwent TEURP).Results: The mean preoperative Hb% level of Group A was 15.1 gm% (SD ± 0.5) and perioperative Hb% level was 13.04 gm% (SD ± 6.06). There was significant difference (P <0.05). The mean preoperative Hb% of Group B was 15.2 gm% (SD ± 0.5) and perioperative Hb% was 15.2 gm% (SD ± 0.48). There was no difference (P >0.05). The mean preoperative Na + of Group A was 140 mmol/l (SD ± 4.1) and perioperative Na+ was 126 mmol/l (SD ± 6.8). There was significant difference (P<0.01). The mean preoperative Na+ of Group B was 136 mmol/l (SD ± 4) and perioperative Na+ was 136 mmol/l (SD ± 2.70). There was no difference (P >0.05).Conclusion: TUERP eliminates drop in Hb% and Na+which are usual consequences following TURP. Thus TUERP can be advocated in the treatment of BPH as it also allows completeresection down to surgical capsule.Birdem Med J 2017; 7(3): 216-220

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Evaluation of the Effect of Ozonated Plant Oils on the Quality of Osseointegration of Dental Implants Under the Influence of Cyclosporin A: An In Vivo Study

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-09-00098 ◽

2011 ◽

Vol 37 (2) ◽

pp. 247-257 ◽

Cited By ~ 6

Author(s):

Amany A. El Hadary ◽

Hala H. Yassin ◽

Sameh T. Mekhemer ◽

Julian C. Holmes ◽

Martin Grootveld

Keyword(s):

Bone Density ◽

Cyclosporin A ◽

Dental Implants ◽

Immunosuppressive Agents ◽

Control Group ◽

Term Administration ◽

Group A ◽

Group B

Abstract Immunosuppressive agents have been recognized as factors that induce changes and modifications in bone metabolism. The purpose of this study was to evaluate the effect of ozonated plant extracts (herein termed ozonated oil) under the influence of Cyclosporin A (CsA) on osseointegration. A total of 20 dental implants were placed in 20 rabbit tibiae assigned to Group A or B. CsA was injected at an immunosuppressive dose in Groups A and B as a single-dose treatment. At the day of surgery, Group A received a single topical ozonated oil treatment (0.55 mL) around dental implants; Group B, the control group, received no ozonated oil. Animals were sacrificed after 8 weeks. Radiographs were obtained at implant surgery and on the day of sacrifice. Bone quality was compared between the 2 groups. Radiographically, osseointegration was microscopically evaluated using scanning electron and light microscopies. In ozonated Group A specimens, light microscopic examination demonstrated evidence of more organized mature bone compared with Group B. Within the limits of this study, the results suggest that short-term administration of CsA, when administered with topical ozonated oil, may influence bone density and the quality of dental implant osseointegration. Therefore, topically applied ozonated oil may influence bone density and the quality of osseointegration around dental implants.

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Comparison of the Effect of 0.2% Chlorhexidine Mouthwash and Persica Mouthwash on the Color of Resin Composite

Journal of Isfahan Dental School ◽

10.18502/ijds.v17i1.5917 ◽

2021 ◽

Author(s):

Fatemeh Ebrahimzadeh ◽

Hooman Fakhar ◽

Hosein Akbari ◽

Ramin Mosharraf ◽

Azin Farzad

Keyword(s):

Resin Composite ◽

Control Group ◽

P Value ◽

Patient Dissatisfaction ◽

Composite Restorations ◽

School Of Dentistry ◽

Initial Color ◽

Group B ◽

And Control

Introduction: Discoloration of resin composite restorations can lead to patient dissatisfaction. 0.2% Chlorhexidine and Persica mouthwashes are among the agents that cause discoloration. The aim of this study was to investigate the degree of discoloration caused by the 0.2% Chlorhexidine and Persica mouthwashes on resin composite samples. Materials and Methods: This in-vitro experimental study was conducted in Kashan and Isfahan School of Dentistry in 2020-2021. Number of 30 disc-shaped samples were fabricated from Charisma Diamond resin composite. The initial color of samples was measured by CIE Lab system in spectrophotometer. Then samples were divided into 3 groups (A, B, and C) (n = 10).The control group (A) was placed in distilled water, group B was immersed in the 0.2% Chlorhexidine mouthwash and group C was immersed in the Persica mouthwash. The color of the samples was measured again afterwards. Data were analyzed with One-way ANOVA and t-Test (α = 0.05). Results: The amount of l, a, b and ΔE after using 0.2% Chlorhexidine and Persica mouthwashes increased. The mean of Δl, Δa, Δb and ΔE showed significant differences between groups (p value < 0.05). Conclusion: The discoloration of Persica mouthwash was more than 0.2% Chlorhexidine mouthwash and control group. Therefore, for patients with resin composite restorations, 0.2% Chlorhexidine mouthwash is better.

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The effects of funoran-containing xylitol chewing gum on dental plaque

Journal of Polymer Engineering ◽

10.1515/polyeng-2013-0225 ◽

2014 ◽

Vol 34 (3) ◽

pp. 203-208

Author(s):

Meng-Jiy Wang ◽

Wei-Jen Chang ◽

Wei-Fang Lee ◽

Sheng-Yang Lee ◽

Joen-Rong Sheu ◽

...

Keyword(s):

Dental Plaque ◽

Ph Value ◽

Study Groups ◽

Mutans Streptococci ◽

Chewing Gum ◽

Control Group ◽

Controlled Clinical Trial ◽

Plaque Ph ◽

Group A ◽

Group B

Abstract The aim of the study was to investigate the efficacy of the addition of funoran to xylitol chewing gum in dental plaque. In a double-blinded randomized controlled clinical trial, 36 health adults (21–30 years old), who volunteered after informed consent, with >105 colony-forming units/ml mutans streptococci (MS) at baseline, were assigned randomly into one of three parallel study groups: xylitol+funoran gum (group A), sucrose gum group (group B), and control group (no gum have been provided; group C). The pH value, flash weight, and MS of dental plaque were recorded at baseline and after 2 weeks of treatment. A statistically significant reduction (p<0.05) of salivary MS was displayed in group A after the intervention when compared with baseline. The weight of plaque was reduced after 2 weeks of treatment (p=0.032) in group A. There was no significance in plaque pH value before and after the treatment in any group. Daily funoran-containing xylitol chewing gum application significantly reduced the dental plaque volume and caries pathogen counts in the oral cavity, suggesting that the use of funoran-containing xylitol chewing gum may be a useful adjunct for caries control.

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In Vitro Evaluation of Marginal Adaptation of Direct Class II Composite Restorations Made of Different “Low-Shrinkage” Systems

Operative Dentistry ◽

10.2341/15-217-l ◽

2017 ◽

Vol 42 (3) ◽

pp. 273-283 ◽

Cited By ~ 4

Author(s):

C Shahidi ◽

I Krejci ◽

D Dietschi

Keyword(s):

Resin Composite ◽

Class Ii ◽

Control Group ◽

Third Molars ◽

Eccentric Load ◽

Composite Restorations ◽

Perfect Adaptation ◽

Before And After ◽

Group A

SUMMARY The present study evaluated the influence of various low-shrinkage restorative systems in class II direct composite restorations following simulated occlusal loading. Forty MOD class II cavities were prepared on freshly extracted human lower third molars with proximal margins located mesially 1.0 mm coronal to and distally 1 mm apical to the cementoenamel junction. The samples were randomly distributed into five experimental groups corresponding to the following restorative systems: a conventional resin composite (Tetric) as active control group, a low-shrinkage composite (Extra Low Shrinkage [ELS]) alone or combined with its corresponding flowable version (ELSflow) used as a 1- to 1.5-mm liner, a bulk-filling flowable composite (Surefil SDR) covered by a 1-mm layer of restorative composite (Ceram-X), and a restorative bulk-filling composite (SonicFill). All specimens were submitted to 1,000,000 cycles with a 100N eccentric load into saline. Tooth restoration margins were analyzed semiquantitatively by scanning electron microscopy before and after loading. The percentage of perfect adaptation to enamel varied from 94.15% (SonicFill) to 100% (ELS) before loading and from 69.22% (SonicFill) to 93.61% (ELS and ELSflow) after loading. Continuous adaptation to cervical dentin varied from 22.9% (Tetric) to 79.48% (SDR/Ceram-X) before loading and from 18.66% (Tetric) to 56.84% (SDR/Ceram-X) after loading. SDR/CeramX and SonicFill showed the best cervical dentin adaptation.

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Clinical Behaviour and Marginal Sealing of Bulk-Fill Resin Composite Restorations Using Light Amplified High-Intensity LEDs Curing: A Randomized Controlled Clinical Trial

Open Access Macedonian Journal of Medical Sciences ◽

10.3889/oamjms.2019.216 ◽

2019 ◽

Vol 7 (8) ◽

pp. 1360-1368 ◽

Cited By ~ 1

Author(s):

Shereen Essameldin Fahim ◽

Mostafa Abdelhamid Mostafa ◽

Mohsen Hussein Abi-Elhassan ◽

HebatAllah Mohamed Taher

Keyword(s):

High Intensity ◽

Clinical Performance ◽

Clinical Success ◽

Resin Composite ◽

Control Group ◽

Controlled Clinical Trial ◽

P Value ◽

Eligibility Criteria ◽

Double Blind ◽

Composite Restorations

BACKGROUND: Delivering sufficient intensity output of curing lights is mandatory to ensure optimum cure and clinical success of bulk-fill resin composite restorations and to avoid undesirable clinical outcomes. AIM: To evaluate the effectiveness of using light amplified high intensity LED curing on the clinical performance and marginal sealing of posterior bulk-fill resin composite restorations. MATERIAL AND METHODS: This study was designed as a randomised, controlled, double-blind, Unicenter, parallel, two arms, superiority trial with 1:1 allocation ratio. Adult patients who required posterior tooth-coloured restorations were asked to participate in this trial. All participants signed written informed consent after being completely aware of the settings of the study. The participants who fulfilled the eligibility criteria were divided into two groups according to the type of light curing mode used. Adhesive compound proximal cavities were prepared. All restorative materials were applied according to the respective manufacturer’s instructions. Assessments of the restorations were done at baseline (one week after placement of the restoration), after 6 months and after 12 months using the modified US Public Health Service (USPHS) criteria. For quantitative assessment of the marginal sealing, resin replicas were analysed using scanning electron microscopy. Statistical analysis was done using Chi-square, Mann Whitney, independent t-test and dependent t-tests. RESULTS: There were no statistical differences between the two groups for the tested clinical parameters along the study periods. For marginal analysis, there were no statistical differences between the intervention and control group at baseline and six months (p-value = 0.347 and 0.516) respectively. At 12 months the control group showed statistically significant higher percentages (p-value = 0.031). CONCLUSION: Light amplified high-intensity curing units have clinical performance comparable with the conventional LED.

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Addition of clonidine or fentanyl with bupivacaine for supraclavicular brachial plexus blocks in upper limb surgery - a randomized comparative study

Journal of the Bangladesh Society of Anaesthesiologists ◽

10.3329/jbsa.v24i1.19792 ◽

2014 ◽

Vol 24 (1) ◽

pp. 3-7

Author(s):

Nasir Uddin Ahmed ◽

Mozaffor Hossain ◽

AKM Akhtaruzzaman ◽

Montosh Kumar Mondol ◽

UH Shahera Khatun

Keyword(s):

Brachial Plexus ◽

Brachial Plexus Block ◽

Sensory Block ◽

Control Group ◽

Upper Limb Surgery ◽

Supraclavicular Brachial Plexus Block ◽

Group A ◽

Group B ◽

Plexus Block

Background The popularity of supraclavicular brachial plexus block in upper limb surgery in recent years are due to better understanding of using adjuvant to local anaesthetics, its advantages and in avoidance of the hazards of general anaesthesia. Objective To compare the quality of anaesthesia and duration of analgesia with clonidine-bupivacaine or fentanyl-bupivacaine in supraclavicular brachial plexus block. Method A total number of 60 patients (ASA class 1 and II) were selected randomly into two groups, thirty in each group. Group-A (control group) received fentanyl (100ìg) 2ml and bupivacaine (0.25%) 38ml, total of 40ml.Group-B (study group) received clonidine (150ìg) 2ml and bupivacaine (0.25%) 38ml, total of 40ml.The parameters including pulse rate, non-invasive systolic and diastolic blood pressure, respiratory rate, SpO2, onset and duration of motor and sensory block, post operative pain score in VAS, duration of analgesia, first analgesic demand, side effects were assessed and recorded. Result Onset and duration of sensory block were significantly higher in group-B than in group-A (P<0.001) and motor block were quite prolonged in group-B than group-A (p<0.001), prevalence of sedation in group-B slightly higher than group-A. But intensity of pain measured by VAS in group-A expressed highest at 8 hours of postoperative period and group-B shows highest VAS at 12 hours. Duration of effective analgesia (time from supraclavicular block to first analgesic demand) in study group-B had significantly longer mean duration than that produced by control group-A (14.4 ± 1.3 vs 10.9 ± 1.5 hours; P<0.001). Conclusion Clonidine and bupivacaine combination is a better alternative to fentanyl and bupivacaine in respect of quality of anaesthesia and duration of analgesia. DOI: http://dx.doi.org/10.3329/jbsa.v24i1.19792 Journal of Bangladesh Society of Anaesthesiologists 2011; 24(1): 3-7

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A COMPARATIVE CLINICAL STUDY OF KADALI KSHAR PRATISARAN AND INJ. SETROL IN THE MANAGEMENT OF ABHYANTAR ARSHA W.S.R. TO INTERNAL HAEMORRHOIDS.

10.36106/ijsr/7601868 ◽

2019 ◽

pp. 1-3

Author(s):

Amit Paliwal

Keyword(s):

Clinical Study ◽

Control Group ◽

Controlled Clinical Trial ◽

Randomized Controlled ◽

Detailed Explanation ◽

Comparative Clinical Study ◽

Group A ◽

Group B ◽

And Control

There is a very peculiar role of “Kshar Karma” (an Anushastra), in the management of Arsha, as described by Sushrutacharya.Acharyas have mentioned Kadali as suitable for the Kshara formulation. Patients suffering from AbhyantaraArsha are subjected to KadaliPratisaraneeyaKshar and efficacy ofKadaliKsharPratisaran and inj. Setrol is compared in the management of AbhyantarArsha. In Clinical study an Open randomized controlled clinical trial is conducted of trial group A and control group B for 30 patients in each group.In observations a detailed explanation is given aboutdistribution of patients according to age, sex, occupation.The results of the study are analyzed statistically compared and are presented in tables and graphs form. By highlighting the outcome of the study along with limitations and scope of further improvement it is concluded that KadaliKsharpratisarana gives potent effects in AbhyantarArsha

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Evaluation of clinical parameters related to methotrexate therapy in lichen planus

Bangabandhu Sheikh Mujib Medical University Journal ◽

10.3329/bsmmuj.v6i2.29122 ◽

2016 ◽

Vol 6 (2) ◽

pp. 90

Author(s):

Samaresh Chandra Hazra ◽

Agha Masood Choudhury ◽

Lubna Khondker ◽

Md. Shirajul Islam Khan ◽

Muhammad Munir Rashid

Keyword(s):

Clinical Trial ◽

Lichen Planus ◽

Control Group ◽

Controlled Clinical Trial ◽

Clinical Parameters ◽

Morning Dose ◽

Group A ◽

Group B ◽

And Control

Background: For better management of lichen planus a clinical trial of oral methotrexate is necessary in ow· country. Objective: The objective of this study is to evaluate efficacy and safety ofmethotrexate therapy in the treatment of lichen planus.Methods: It was a prospective randomized controlled clinical trial conducted in the department of Dermatology and Venereology, BSMMU, Dhaka, from January 2009 to December 2010. Forty four patients of lichen planus were included in the study. Cases (group-A, n=23) were treated with methotrexate (10 mg) single morning dose and control (group-B, n=21) were treated with mini pulse betamethasone (5mg) single morning dose on 2 consecutive days during the period of 12 weeks. Results: Clinical parameters were measured by follow up clinical examination. Morphological lesion of lichen planus improved 95. 7% in group-A and only 28.6% improved in group-B. At the end of study 82.6% bad no complaints of itching in group-A and 100% had no complaints of itching in group-B. 16(69.6%) patients in group-A were completely cured clinically but 10(47.6%) in group-B. Anemia 3(14.2%) and edema 12(57.1 %) developed in group-B but none in group-A. In group-B, dyspepsia 15(71.4%), acne 10(47.6%),mooning face 8(38.1%), striae 8(38.1%) and hypertrichosis 4(19.0%) developed but none in group-A lntermittenr diarrhoea, headache, nausea and fatigue complained in both groups of patients but the percentage of complaints was higher amog group-8 compared to group-A. Menstrual abnormality developed in group-B 5(71.4%) but none in group-A.Conclusion: The overall adverse effects were less in group-A than group-B. Therefore, methotrexate can be used as an alternative safer option for the treatment of lichen planus.

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