scholarly journals Lithium disilicate and peek implant-retained single crowns - a randomized, prospective clinical study

2022 ◽  
pp. 3-3
Author(s):  
Ena Joksimovic ◽  
Miodrag Scepanovic ◽  
Danijela Staletovic ◽  
Mirjana Pejic-Duspara ◽  
Borivoj Bijelic ◽  
...  
Keyword(s):  
Statistical Significance ◽  
Lithium Disilicate ◽  
Observation Time ◽  
Control Group ◽  
Prospective Clinical Study ◽  
Tissue Healing ◽  
Significant Difference ◽  
Comparison Of The Results ◽  
And Control ◽  
Single Crowns

Introduction/Objective. Comparing two materials under the same conditions is the best way to define differences between them. PEEK is a polymer that has many possible uses in dentistry as already well-known lithium disilicate ceramics. The aim of this study was to compare peri-implant soft tissue healing and evaluate patient satisfaction with esthetics in different observation periods, as well as the success and survival rate of both types of crowns. Methods. The study was conducted as a clinical, prospective, randomized split-mouth study on 17 patients with bilaterally missing upper teeth of the same type, replaced with dental implants. Study outcomes have been analyzed with subjective (VAS scale) and objective parameters (MBI, MPI and PPD) baseline, six and twelve months after fixing crowns onto the implants. Results. Comparison of the results between PEEK and lithium disilicate crowns showed no statistical differences in terms of MPI, MBI and PPD in the observed periods. Analyzing MPI during observation periods in the PEEK group of crowns, statistical significance was registered between baseline values and after 6 months. Also, statistical significance was noticed in terms of PPD during the observation time both in the study and control group of crowns. Results for VAS for the esthetics showed no statistically significant difference between the groups, while VAS for restoration satisfaction showed a statistically significant difference. Conclusion. This study showed that scores of the applied subjective and objective parameters can be a reliable tool to rate the clinical outcome of implant-retained single crowns over time.

scholarly journals The Connection of the Level of Estradiol in Serum and Obesity with the Endometrial Bleeding in Postmenopausal Women

2019 ◽  
Vol 7 (1) ◽  
pp. 88-91 ◽  
Author(s):  
Valentina Tofiloska ◽  
Maria Krstevska ◽  
Ana Daneva-Markova ◽  
Viktorija Jovanovska
Keyword(s):  
Endometrial Cancer ◽  
Statistical Significance ◽  
Abnormal Uterine Bleeding ◽  
Control Group ◽  
Prospective Clinical Study ◽  
Study Group ◽  
Gynecology And Obstetrics ◽  
Increased Risk ◽  
Significant Difference ◽  
Post Menopausal

BACKGROUND: Postmenopausis is a period that begins one year after the last menstrual period. Abnormal uterine bleeding could be of different origins. AIM: This study aimed to determine the association of serum estrogen hormone levels and obesity with the occurrence of endometrial bleeding in post-menopausal women. MATERIAL AND METHODS: Prospective clinical study involving 120 postmenopausal patients treated at the University Clinic for Gynecology and Obstetrics-Skopje, divided into two groups: control and study. The control group consisted of 40 postmenopausal patients without endometrial bleeding, hospitalised and operated due to urogenital pathology. The study group consisted of 80 patients with endometrial bleeding who were divided into three subgroups according to the thickness of the endometrium: from 5-8 mm, 8-11 mm and above 11 mm. In all subjects, estradiol and BMI was determined. RESULTS: Estradiol levels were statistically higher in the study group compared to control while statistically significant difference among the three subgroups according to the thickness of the endometrium about the levels of estradiol in blood is not found. About BMI, the results showed that there was no statistical significance between the two examined groups. CONCLUSION: Patients with endometrial bleeding have increased levels of estradiol and are at increased risk of endometrial cancer about controls, the likelihood of endometrial cancer significantly increases by 1,108 times.

scholarly journals Influence of Therapeutic Play on the anxiety of hospitalized school-age children: Clinical trial

2017 ◽  
Vol 70 (6) ◽  
pp. 1244-1249 ◽  
Author(s):  
Sabrina Gisele Tobias da Silva ◽  
Maiara Aurichio Santos ◽  
Claudia Maria de Freitas Floriano ◽  
Elaine Buchhorn Cintra Damião ◽  
Fernanda Vieira de Campos ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Statistical Significance ◽  
School Age Children ◽  
Control Group ◽  
School Age ◽  
Chi Square ◽  
Number Of Children ◽  
Significant Difference ◽  
Therapeutic Play ◽  
And Control

ABSTRACT Objective: To evaluate the effects of Dramatic Therapeutic Play (DTP) technique on the degree of anxiety in hospitalized school-age children. Method: Randomized clinical trial performed in two hospitals ofSão Paulo, between May and October 2015. The intervention consisted of the application of DTP and the outcome was evaluated through the Child Drawing: Hospital (CD: H) instrument. The Wilcoxon-Mann Whitney, Corrected t, Fisher’s exact and Chi-square tests were used in the analysis. Statistical significance was set at 5%. Results: In all, 28 children participated in the study. The majority of children (75%) had a low anxiety score, with a mean CD: H score of 73.9 and 69.4 in the intervention and control groups respectively, and with no significant difference. Conclusion: Children submitted to DTP had the same degree of anxiety as those in the control group. However, it is suggested that new studies be performed with a larger number of children in different hospitalization scenarios.

scholarly journals THE IMPACT OF SPORT GAMES EXERCISE PROGRAMS ON THE DEVELOPMENT OF SPECIFIC MOTOR ABILITIES IN ADOLESCENTS WITH INTELLECTUAL IMPAIRMENT

2020 ◽  
pp. 249
Author(s):  
Aleksandar Pejčić ◽  
Miodrag Kocić
Keyword(s):  
Motor Skills ◽  
Statistical Significance ◽  
Exercise Program ◽  
Experimental Program ◽  
Control Group ◽  
Mental Impairment ◽  
Motor Abilities ◽  
Significant Difference ◽  
And Control ◽  
The Impact

The aim of this study was to determine the effects of a sports games experimental program on improving specific motor abilities in adolescents with mental impairment. The study was conducted on a sample of 60 adolescents diagnosed with mild mental impairment, divided into two groups (experimental group EG, and control group CG) with an equal number of participants. The special program of sports games lasted for 12 weeks, with a weekly frequency of four times and a duration of 30 minutes per training. The participants of both groups were tested with the same variables within the specific motor skills for the sport of football and basketball. After a twelve-week experimental program of sports games, there were statistically significant improvements in the EG in the variables: SMFS, SMDR, SMCP with a statistical significance of r=0.000. The results of the ANOVA and MANOVA analyses indicated that after the application of the specific sports games program there was a statistically significant difference in the benefits for the EG compared to the CG, in the parameters of specific motor abilities with a statistical significance r=0.000 and the size of the impact. Based on these research results, it can be concluded that a specific exercise program conducted within twelve-week training of specifically dosed sports activities has significantly contributed the development of specific motor skills for football and basketball.

scholarly journals Evaluation of Alpha-1 Antitrypsin Level in the Serum of Children With Idiopathic Bronchiectasis

2021 ◽  
Author(s):  
Maryam Babaei ◽  
Zahra Kanannejad ◽  
Soheila Alyasin
Keyword(s):  
Serum Level ◽  
Respiratory Infections ◽  
Statistical Significance ◽  
Clinical Syndrome ◽  
Control Group ◽  
Case Group ◽  
Significant Difference ◽  
Alpha 1 Antitrypsin ◽  
One Year ◽  
And Control

Bronchiectasis is a clinical syndrome characterized by chronic cough, sputum production, recurrent respiratory infections, and permanent bronchial dilation. The association between the level of alpha-1 antitrypsin (AAT) and bronchiectasis is controversial. In this study, we aimed to investigate this association in children with idiopathic bronchiectasis. The study was conducted on 20 patients with idiopathic bronchiectasis as the case group (mean age 15.9±2.1) and 20 healthy individuals as the control group (mean age 14.9±2.6). Serum AAT level was measured using nephelometric analysis (g/L). Other criteria including sex, parent consanguinity, number of hospitalizations, age of the first symptom were evaluated in both groups related to AAT level. The mean serum level of AAT in the case and control groups were 1.3±0.29; 1.5±0.59, respectively, with statistical significance (P=0.001). There was a significant difference between the two groups in the AAT level distribution, according to AAT normal range (P=0.01). The case group had a more positive attitude toward consanguinity than the control group (66.7% versus 33.3%; P<0.001). The results showed that 80% of patients had the first symptom of disease under one year of age, 6.6% 1-5 years, 6.6% 5-10 years, and 6.6% in more than ten years old. In the case group, 53.3% had a history of medical hospitalization for one time, 26.7% two times, while 20% of the patients had no medical hospitalization. Decreased AAT serum level and high consanguinity rates may be considered as two risk factors for idiopathic bronchiectasis occurrence in children.

scholarly journals Relationship between Quality of Life and Occupational Accidents in South-East of Iran (Zahedan)

2016 ◽  
Vol 9 (2) ◽  
pp. 112 ◽  
Author(s):  
Fereydoon Laal ◽  
Mohammad Jafari Modrek ◽  
Davoud Balarak ◽  
Mahdi Mohammadi ◽  
Mahdieh Rakhshani ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Psychological Health ◽  
Statistical Significance ◽  
Occupational Accidents ◽  
Control Group ◽  
Life Questionnaire ◽  
Significant Difference ◽  
The Mean ◽  
And Control

<p>With the development of science and technology, occupational accidents, as one of the most important problems in the world, result in negative effects on physical and psychological health, and also the quality of life of workers. The aim of this study was to compare the quality of life among workers with and without accident. In a cross-sectional study, 93 workers were selected, 31 who experienced accident and 62 as control group. To gather the data, a researcher-made questionnaire for demographic characteristics and the quality of life questionnaire (SF-36) were used. Mann-Whitney and Chi-square tests were used for data analysis. The mean and standard deviation of age was 30.81±7.29 and 30.56±7.19 in workers with accident (case group) and control group, respectively. Homogeneity was ensured in terms of age and work experience and the two groups had no significant difference in this regard (p&gt;0.05). Most of the participants were high school graduates (67.7%). The majority of accidents (68.8%) had occurred in the manufacturing sections. The most common accident type was sprayed chemical substances (19.4%) and the less frequent was electrocution (3.2%). The mean total score for the quality of life was 37.61±14.29 and 74.92±12.95 in the case and control groups with a statistical significance difference (p&lt;0.001). The results of this study indicate that the incident could affect the quality of life of workers. Therefore, promoting the safety culture can help to reduce the occupational accidents.</p>

scholarly journals Comparison of dual-dimensional and rectangular wires in terms of space closure and anchorage loss during retraction with miniimplants: A prospective clinical study

2020 ◽  
Vol 14 (1) ◽  
pp. 54-60
Author(s):  
Sangeetha Morekonda Gnaneswar ◽  
Premkumar Sridhar
Keyword(s):  
Statistical Significance ◽  
Torque Control ◽  
Control Group ◽  
Prospective Clinical Study ◽  
Mini Implants ◽  
Space Closure ◽  
Significant Difference ◽  
The Difference ◽  
Anchorage Loss ◽  
Sliding Mechanics

Background . In sliding mechanics, archwires should slide easily during the retraction of anteriors. Round wires slide well, but the torque control is a significant problem. Rectangular wires produce effective torque expression but pose a challenge to free sliding due to factors like friction and force used to overcome friction, etc. To utilize the properties of both wires, the wire should be bi-dimensional. Dual-dimensional wire is one such wire with different dimensions in the anterior and posterior sections. This study aimed to compare the amount of space closure and anchorage loss of molars between the rectangular and dual-dimensional wire groups during retraction with mini-implants. Methods. Forty patients were randomly allocated to two groups (n=20). Patients with rectangular wires formed the control group, and those with dual-dimensional wires formed the experimental group. Mini-implants and NiTi coil springs were used for retraction. Model and cephalometric analyses were carried out to calculate the amount of space closure and anchor loss, before and four months after the study. Statistical significance was set at P<0.05. Results. The average amount of space closure was higher with DDW (3.98 mm) than rectangular wire (3.22 mm). The difference was statistically significant. No significant difference was found with anchorage loss. Conclusion. DDW can be used as an alternative to rectangular wires during retraction with mini-implants; however, it cannot replace the rectangular wires completely. Anchorage control was effective with both wires.

scholarly journals Expression of angiogenic markers in jawbones and femur in a rat model treated with zoledronic acid

2022 ◽  
Vol 15 (1) ◽  
Author(s):  
Jing Wen Li ◽  
Jing Yi Wang ◽  
Ru Qing Yu ◽  
Lei Huo ◽  
Li Wu Zheng
Keyword(s):  
Gene Expression ◽  
Zoledronic Acid ◽  
Soft Tissue ◽  
Rat Model ◽  
Pcr Analysis ◽  
Control Group ◽  
Tissue Healing ◽  
Significant Difference ◽  
And Control ◽  
Group 1

Abstract Objectives This study aimed to investigate the gene expression of angiogenic marker in surgically treated jawbones and femur on a rat model administrated with zoledronic acid. Results No soft tissue fenestration or bone exposure was found in femur. Delayed soft tissue healing was found in both ZA group (3 in mandible, 4 in maxilla) and control group (1 in mandible, 2 in maxilla), while exposed bone was found only in the ZA group (1 in maxilla, 2 in mandible). RT-PCR analysis demonstrated no significant difference in gene expression of angiogenetic markers between ZA-treated and control groups in femur and mandible. In the maxilla, the expression of VEGFA and VEGFR-2 in medium-term ZA group was significantly down-regulated compared with that in the control. The ZA treatment does not change significantly the expression of the angiogenic factors in femur and mandible, but significantly downregulates the expression in maxilla in this rat model. The angiogenesis inhibition may contribute to the development of MRONJ but does not play a key role.

scholarly journals Clinical Evaluation of Time Efficiency and Fit Accuracy of Lithium Disilicate Single Crowns between Conventional and Digital Impression

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5467
Author(s):  
Ji-Su Park ◽  
Young-Jun Lim ◽  
Bongju Kim ◽  
Myung-Joo Kim ◽  
Ho-Beom Kwon
Keyword(s):  
Conventional Method ◽  
Statistical Tests ◽  
Statistical Significance ◽  
Lithium Disilicate ◽  
Digital Impression ◽  
Time Efficiency ◽  
Digital Dentistry ◽  
Single Crown ◽  
Significant Difference ◽  
Single Crowns

The purpose of this study was to demonstrate the time-efficiency and the clinical effectiveness of chairside-fabricated lithium disilicate single crowns by digital impressions compared to the conventional method. Thirteen patients requiring a single crown on the maxillary or mandibular premolar or first molar were assigned as study subjects. The impressions were obtained using the conventional method and two digital methods with intraoral scanners: AEGIS.PO (Digital Dentistry Solution, Seoul, Korea) and CEREC Omnicam (Sirona, Bensheim, Germany). Two types of lithium disilicate single crowns were obtained; a reference crown (by conventional workflow) and a chairside crown (by digital workflow). The total time taken for fabricating the chairside crown was recorded. The replica technique was performed to compare the marginal and internal fit of the two types of crowns. In addition, accuracy of the intraoral scanners was evaluated by the best-fit alignment method. The difference between the groups was analyzed using the two-tailed paired t-test or one-way ANOVA, followed by the Student–Newman–Keuls test for multiple comparisons. Statistical significance was accepted at p < 0.05 for all statistical tests. The time required to obtain the impressions by the AEGIS (7:16 ± 1:50 min:s) and CEREC (7:29 ± 2:03 min:s) intraoral scans was significantly lower than the conventional method (12:41 ± 1:16 min:s; p < 0.001). There was no significant difference between the intraoral scanners. The total working time to fabricate the chairside crown averaged 30:58 ± 4:40 min:s. The average marginal gap was not significantly different between the reference (107.86 ± 42.45 µm) and chairside (115.52 ± 38.22 µm) crowns (p > 0.05), based on results of replica measurement. The average internal gaps were not significantly different. The average value of the root mean square between the AEGIS (31.7 ± 12.3 µm) and CEREC (32.4 ± 9.7 µm) scans was not significantly different (p > 0.05). Intraoral scans required a significantly shorter impression time than the conventional method, and it was possible to fabricate a lithium disilicate crown in a single visit. There were no statistically significant differences in the fit of the restorations and accuracy of the intraoral scanners compared to the conventional workflow.

scholarly journals Effect of cryotherapy in preventing mucositis associated with the use of 5-fluorouracil

2020 ◽  
Vol 28 ◽  
Author(s):  
Andrea Bezerra Rodrigues ◽  
Maria Isis Freire De Aguiar ◽  
Patrícia Peres De Oliveira ◽  
Naiana Pacifico Alves ◽  
Renan Alves Silva ◽  
...  
Keyword(s):  
Statistical Significance ◽  
Antineoplastic Agent ◽  
Control Group ◽  
Control Groups ◽  
Double Blind ◽  
Physiological Serum ◽  
Significant Difference ◽  
Oral Cryotherapy ◽  
And Control ◽  
Experimental Group

Objective: to evaluate the effect of oral cryotherapy compared to physiological serum on the development of oral mucositis in outpatient cancer patients using the 5-fluorouracil antineoplastic agent. Method: this is a controlled, randomized, double-blind, and multi-center clinical trial, conducted with 60 patients undergoing chemotherapy. The experimental group (n=30) used oral cryotherapy during the infusion of the 5-FU antineoplastic agent, while the control group (n=30) performed mouthwash with physiological serum at their homes. The oral cavity of the participants was assessed at three times: before randomization, and on the 7th and 14th days after using 5-FU. For data analysis, descriptive analyses and the ANOVA, paired t, and McNemar tests were used. Results: there was no statistically significant difference between the experimental and control groups in the assessments regarding the grade of mucositis. However, cryotherapy presented the chance to reduce the presence of intragroup mucositis, between the first and second assessments (p=0.000126). Conclusion: cryotherapy did not obtain statistical significance in relation to oral hygiene with serum, but it proved to be effective intragroup. Record number: RBR-4k7zh3

scholarly journals Therapeutic Efficacy of Vitamin A in the Treatment of Idiopathic Microscopic Hematuria in Children

2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Parsa Yousefichaijan ◽  
Masoud Rezagholizamenjany ◽  
Fatemeh Dorreh ◽  
Hassan Taherahmadi ◽  
Mohamad Rafiei ◽  
...  
Keyword(s):  
Vitamin A ◽  
Statistical Significance ◽  
Microscopic Hematuria ◽  
Control Group ◽  
P Value ◽  
Routine Treatment ◽  
Significant Difference ◽  
The Family ◽  
Routine Handling ◽  
And Control

Background: Hematuria is a symptom with a prevalence of 0.5% to 2% in those aged 5 - 12 years. Different factors can influence the severity of hematuria, including vitamin A (as a micronutrient). Objectives: The current study aimed to evaluate the therapeutic effect of vitamin A on hematuria in children. Methods: In this clinical trial study, 156 children aged 5 - 12 years with Idiopathic Microscopic Hematuria are studied. Participants were divided into two groups of treatment and control (each with 76 subjects). Those in the treatment group received vitamin A as a pearl of 25000 in 14 days, in addition to the routine treatment. The control group only received routine handling. The basic information of patients were recorded using an author-develop form by the supervisor and intern. Urine samples were collected on 14, 28, and 42 days. Data were analyzed using SPSS. Statistical significance was considered when P-value < 0.05. Results: There was no significant difference between the two groups concerning gender (P = 0.202), age (P = 0.330), father's education (P = 0.152), mother's education (P = 0.392), father's occupation (P = 0.125), mother's occupation (P = 0.265), and numbers of children in the family (P = 0.209) variables. Hematuria status on days 14 (P = 0.014), 28 (P = 0.001), and 42 after treatment (P = 0.001) was statistically more positive in the vitamin A group, compared to the placebo group. Hence, there was a significant difference between the two groups. Conclusions: Vitamin A can improve idiopathic microscopic hematuria. Hence, vitamin can be used as an alternative treatment to treat idiopathic hematuria in children.

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