scholarly journals Impact of residual ridge anatomy on masticatory efficiency of conventional complete denture users

2021 ◽  
Vol 69 ◽  
Author(s):  
Maria de Fátima Trindade Pinto CAMPOS ◽  
Laércio Almeida de MELO ◽  
Roberto Fagner Felix ARAÚJO ◽  
Annie Karoline Bezerra de MEDEIROS ◽  
Adriana da Fonte Porto CARREIRO
Keyword(s):  
Cross Sectional Study ◽  
Wilcoxon Test ◽  
Masticatory Performance ◽  
Cross Sectional ◽  
Arch Width ◽  
Masticatory Efficiency ◽  
Ridge Height ◽  
Significant Difference ◽  
Spearman Correlation Test ◽  
Ridge Width

ABSTRACT Objective: The aim of this cross-sectional study was to evaluate the anatomical characteristics of edentulous residual ridges in stone casts of complete dentures users and assess correlations with masticatory efficiency. Methods: The sample included 74 study casts, of which 37 were higher and 37 bottom. Measurements were performed using a drypoint compass and a transparent ruler. Arches and ridges of maxillae and mandibles were classified into small, medium, and large. Masticatory efficiency was obtained by the sieve method with the old prostheses and 3 months after placement of new prostheses. The correlations between the anatomical variables of the ridges and arches (height, width and size) and masticatory efficiency were verified by the Spearman correlation test. Significant differences in masticatory efficiencies were assessed by the Wilcoxon test. Results: People with larger maxillary alveolar ridge presented better masticatory performance with old and new dentures. There was no correlation between maxillary ridge width and size with masticatory efficiency, but a correlation was found between maxillary arch width and masticatory efficiency evaluated with the old dentures. Conclusions: With the new dentures, the correlation had a tendency for significance. For the mandible, no correlation was found between height, width, and size of the ridge or with width, length, and size of the arch and masticatory efficiency. In addition, there was no significant difference between masticatory efficiencies evaluated with the old and new prostheses. For the maxilla, ridge height and arch width influence masticatory efficiency. For the mandible, the anatomy had little influence on masticatory performance.

scholarly journals ANALYSIS OF PLATELET COUNT ON FIBROSIS DEGREE IN CHRONIC HEPATITIS B PATIENTS

2018 ◽  
Vol 24 (2) ◽  
pp. 165
Author(s):  
Hairul Anwar ◽  
Mutmainnah Mutmainnah ◽  
Ibrahim Abdul Samad
Keyword(s):  
Chronic Hepatitis ◽  
Platelet Count ◽  
Hepatitis B ◽  
Chronic Hepatitis B ◽  
Complete Blood Count ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Significant Difference ◽  
B Virus ◽  
Spearman Correlation Test

Chronic hepatitis B is an infectious liver disease caused by hepatitis B virus that persist for more than 6 months. Fibrosis is a result of fibrogenesis which is the formation of connective tissue (scarring) caused by liver tissue damage. Liver damage will affect the production of thrombopoetin causing disturbances in the balance between destruction and production of platelet resulting in decreased platelet counts. This study was a retrospective cross-sectional study by taking the data from medical records of chronic hepatitis B patients who were tested for complete blood count and fibroScan at the Dr.Wahidin Sudirohusodo Hospital Makassar from January 2014 to July 2016. The result showed a total of 323 chronic B hepatitis patients, 99 with severe fibrosis, 84 with moderate fibrosis and 140 with mild fibrosis. The Spearman correlation test showed a significant correlation between the platelet count and the degree of fibrosis (p <0.001) and showed a positive correlation between both of them with a very strong correlation (r = 0.802). The Kruskal-Wallis test showed a significant difference between platelet count and the degree of fibrosis (p<0.001). The conclusion is that a decreased platelet count is a sign of an increase in the degree of fibrosis in chronic hepatitis B patients. It is suggested to perform another study with larger samples based on the degree of fibrosis. 

scholarly journals PERBANDINGAN KADAR NITRIC OXIDE PADA PEROKOK DAN BUKAN PEROKOK

2019 ◽  
Vol 7 (1) ◽  
pp. 96-101
Author(s):  
Maria Estela Karolina ◽  
Armaidi Darmawan ◽  
Wahyu Indah Dewi Aurora
Keyword(s):  
Nitric Oxide ◽  
Cross Sectional Study ◽  
Wilcoxon Test ◽  
Sectional Study ◽  
Test Statistic ◽  
Cross Sectional ◽  
Normality Test ◽  
Significant Difference ◽  
Microplate Reader ◽  
Nonsmoker Group

Abstract Background: Cigarette smoke can affect macrophage metabolism by activating macrophages to release leukotrien B4, IL-8 and TNFα which lead to increased production of superoxide (O2-) and H2O2 and also cause oxidative damage to macromolecules such as lipids, proteins, DNA that can eliminate antioxidants and form free radicals such as Nitric Oxide (NO). NO has an important contribution in the occurrence of infection where NO will be produced more by iNOS. Methods: This study is a cross sectional study with a sample of samples taken in total sampling from medical students of Jambi University as many as 22 people with smokers and 22 non-smokers. Conducted NO examination by using microplate reader on wave 595. Research data obtained then tested by statistical analysis with mann whitney and wilcoxon test. Results : NO levels in smokers were higher than nonsmoker group NO levels. Based on normality test data with Mann Whitney obtained significant difference between both groups value of sig 0.030. Furthermore, Wilcoxon analysis. The result of wilcoxon analysis shows statistic test output where sig (<0,05). Conclusion : NO levels in the smoker group were higher than in the nonsmokers group. NO levels between smokers and nonsmokers were significantly different. Keywords : Smokers, non-smokers, nitric oxide   Abstrak Pendahuluan : Asap rokok dapat mempengaruhi metabolisme makrofag dengan mengaktifkan makrofag untuk melepaskan leukotrien B4, IL-8 dan TNFα yang menyebabkan meningkatnya produksi superoksida (O2-) dan H2O2 dan juga menyebabkan kerusakan oksidatif makromolekul seperti lipid, protein, DNA yang dapat   menghilangkan  antioksidan  serta  membentuk radikal  bebas seperti Nitrit  Oxide  (NO).  NO mempunyai kontribusi yang penting dalam terjadinya infeksi dimana NO akan diproduksi lebih banyak oleh iNOS. Metode : Penelitian ini merupakan penelitian cross sectional dengan sampel penelitian yang diambil secara total sampling dari mahasiswa kedokteran Universitas Jambi sebanyak 22 orang dengan perokok dan 22 orang bukan perokok. Dilakukan pemeriksaan NO dengan menggunakan microplate reader pada gelombang 595. Data penelitian yang di dapatkan kemudian di uji dengan analisis statistic dengan uji mann whitney dan wilcoxon. Hasil : Kadar NO pada perokok lebih tinggi dibandingkan dengan kadar NO kelompok bukan perokok. Berdasarkan uji normalitas data dengan Mann whitney diperoleh perbedaan yang bermakna diantara kedua kelompok nilai sig 0.030. Selanjutnya dilakukan Analisis Wilcoxon. Hasil analisis wilcoxon menunjukkan output test statistic dimana sig (<0,05). Kesimpulan  :  Kadar  NO  pada  kelompok  perokok  lebih  tinggi  dibandingkan  dengan  kelompok  bukan perokok. Kadar NO antara kelompok perokok dan bukan perokok terdapat perbedaan yang signifikan. Kata Kunci : Perokok, bukan perokok, Nitric Oxide

scholarly journals Malondialdehyde Levels in Preeclampsia before and after Delivery

1970 ◽  
pp. 143
Author(s):  
Harold Rumopa ◽  
Freddy W. Wagey ◽  
Eddy Suparman
Keyword(s):  
Oxidative Stress ◽  
Plasma Levels ◽  
Cross Sectional Study ◽  
Hplc Method ◽  
Wilcoxon Test ◽  
Sectional Study ◽  
Cross Sectional ◽  
Average Value ◽  
Significant Difference ◽  
Before And After

  Objective: Determine differences plasma levels MDA in preeclampsiabefore and 2 hours after delivery.   Methods: This was an analytic cross-sectional study. Subjectconsists of 23 pregnancies with preeclampsia, where 23 bloodsamples taken before delivery and 23 were taken 2 hours afterdelivery. This study was conducted from August 2016 untilDecember 2016 at Department of Obstetrics and GynecologyFaculty of Medicine Universitas Sam Ratulangi / Prof. Dr. R. D.Kandou Hospital Manado and satellite hospital. Samples weretaken from plasma and analysed using HPLC method at Prodiaclinical laboratory.   Results: In patients with severe preeclampsia before deliverywe found average value (1.4796  0.40819 nmol/ml), minimumvalue (1.03 nmol/ml) and maximal value (2.77 nmol/ml)and 2 hours after delivery with average value (1.2470 0.34324 nmol/ml), minimum value (0.91 nmol/ml), and maximumvalue (2.47 nmol/ml). by using Wilcoxon test, we foundthere were significant differences in plasma levels of MDA (p =0.000).   Conclusion: This significant difference suggests that decreasedplasma levels of MDA 2 hours after delivery and gives the sense thatthere is a relationship between oxidative stress of cells with severepreeclampsia before and shortly after delivery, that MDA is an indicatorof oxidative stress.   Keywords: malondialdehyde, oxidative stress, peroxidation lipid,preeclampsia

scholarly journals CORRELATION OF AA INDEX (AFP APTT) WITH DEGREE OF LIVER FIBROSIS IN CHRONIC HEPATITIS B PATIENTS

2019 ◽  
Vol 25 (2) ◽  
pp. 170
Author(s):  
Rika Andriany ◽  
Ibrahim Abdul Samad ◽  
Mansyur Arif
Keyword(s):  
Chronic Hepatitis ◽  
Liver Fibrosis ◽  
Hepatitis B ◽  
Chronic Hepatitis B ◽  
Cross Sectional Study ◽  
Serum Marker ◽  
Cross Sectional ◽  
Significant Difference ◽  
Spearman Correlation Test ◽  
Aa Index

A liver biopsy is the gold standard for diagnosing and staging liver fibrosis in chronic hepatitis B patient but with many disadvantages so it is difficult to use as a routine examination. Research on index based on serum marker is helpful in predicting liver fibrosis. We conducted a study of the alpha-fetoprotein (AFP) and partial activated thromboplastin time (APTT) index or AA index in relation to the degree of liver fibrosis in chronic hepatitis B patients. This study was a retrospective cross-sectional study in dr.Wahidin Sudirohusodo Hospital Makassar by taking the data from medical records of chronic hepatitis B patients from January 2015 to December 2016. Samples were chronic hepatitis B patients who were tested for AFP, APTT and Fibroscan. The result showed the total of 79 chronic hepatitis B patients, 23 with severe fibrosis, 9 with moderate fibrosis, 26 with mild fibrosis, and 21 with no fibrosis. Spearman correlation test showed a significant correlation between the AA index and the degree of fibrosis (p <0.001) and showed a positive correlation between both of them with a very strong correlation (r = 0.830). Oneway Anova test showed a significant difference between the AA index and the  degree of fibrosis (p<0.001). The results of this study indicate that the AA index can be used as a predictor of fibrosis in chronic hepatitis B patients. It is suggested to do another study with larger sample based on the degree of fibrosis.

scholarly journals Sub Sinus Ridge Height at First Molar Region- A Panoramic Radiograph Based Study

2020 ◽  
Vol 18 (2) ◽  
pp. 243-247
Author(s):  
Nashib Pandey ◽  
Sujaya Gupta ◽  
Ankit Shah ◽  
Anju Khapung ◽  
Bhageshwar Dhami
Keyword(s):  
Age Groups ◽  
Panoramic Radiograph ◽  
Cross Sectional Study ◽  
Treatment Needs ◽  
Sinus Augmentation ◽  
Cross Sectional ◽  
Ridge Height ◽  
Significant Difference ◽  
The Difference ◽  
Molar Region

Background: Among various replacement options available for maxillary molars, implants necessitate the need to examine available ridge height and width. Panoramic radiographs (orthopantomograms) are routinely used for preliminary determination of ridge height which is helpful in communicating with patients regarding treatment needs and options. This study was designed with the aim to assess the sub sinus ridge height at dentulous and edentulous first molar sites.Methods: A cross-sectional study was conducted from March to November 2019 among patients visiting the dental college. The orthopantomograms of 455 patients were prospectively collected and analysed using Carestream imaging software (version 7.0.0). Distance from alveolar crest to maxillary sinus was measured in first molar region. Results: Mean minimal sub sinus ridge height at non-missing maxillary first molar site was 8.16 ± 2.6 mm, whereas for missing maxillary first molar site it was 5.25 ± 2.28 mm and the difference was statistically significant (p<0.001). Statistically significant difference among the age groups and minimum subsinus ridge height (p<0.001) was observed. Conclusions: Missing maxillary first molar sites may often require vertical bone augmentation with direct sinus lifting procedures if it has to undergo replacement with dental implants in the representative Nepalese population.Keywords: Implant; Nepalese; orthopantomogram; panoramic radiography; sinus augmentation

scholarly journals Using Ultraviolet C (UVC) in Operating Rooms: A Hygiene Improvement

2021 ◽  
Vol 1 (S1) ◽  
pp. s63-s63
Author(s):  
Roberta Bosco ◽  
Gabriele Messina ◽  
Davide Amodeo ◽  
Gabriele Cevenini ◽  
Simona Gambelli
Keyword(s):  
Repeated Measures ◽  
Operating Rooms ◽  
Cross Sectional Study ◽  
Wilcoxon Test ◽  
Cross Sectional ◽  
Colony Forming Units ◽  
Significant Difference ◽  
Ultraviolet C ◽  
Cleaning Procedures ◽  
The Difference

Background: Disinfection procedures are an essential aspect of preventing cross contamination, especially in situations where the risk of infection is higher, such as in operating rooms (ORs). Disinfection procedures in ORs at the end of each surgery session are not the same as final cleaning procedures. We assessed the difference in microbial contamination between different levels of disinfection, before T(0) and after T(1) the use of an ultraviolet C device (UVC-D). Methods: A cross-sectional study was conducted between December 2019 and August 2020 in a private clinic. Three sanitation levels (SL1–SL3) were compared for the reduction in colony-forming units (CFU) between T(0) and T(1): (1) no disinfection after surgery (SL1);, (2) after in-between cleaning (SL2), and (3) after terminal cleaning (SL3). UVC-D was used for 6 minutes, 3 minutes per bed side. Overall, 260 Petri dishes were used in 3 ORs, incubated at 36°C, and CFU were counted after 48 hours. Descriptive statistics, Wilcoxon test, and MANOVA for repeated measures were performed to verify the 95% statistical difference between T(0) and T(1), both on the whole sample and combined with the different SLs. Results: The unstratified analysis showed statistically significant differences (Wilcoxon test, p < 0.05) between T(0) and T(1), with means and standard deviations of 11.42 ± SD 41.19 CFU/PD and 5.91 ± SD 30.89, respectively. The Manova test for repeated measures, applied to 54 pairs of measurements, showed no significant difference between SLs in T(0)-T(1) CFU reduction. Overall, the mean percent reduction in CFU was 93.48% (CI95% = 86.97-99.99%). Conclusions: The results showed significant improvements in disinfection under any condition tested with UVC-D. Using the device immediately after surgery (SL1), before standard cleaning procedures, reduced CFUs by 97.3%. In some situations, UVC light was sufficient to reduce CFU to zero, even without chemical and mechanical cleaning. However, we do not recommend this approach; UVC light disinfection should be applied only after sanitization procedures because it does not remove dirt.Funding: UltraViolet Device, IncDisclosures: None

scholarly journals Impact of Outsourcing Medical Equipment Department on Costs and Profits: A Case Study of a University Hospital in Tehran, Iran

2021 ◽  
Author(s):  
Jamalodin Tabibi ◽  
Alireza Kiani
Keyword(s):  
Human Resources ◽  
Medical Equipment ◽  
Cross Sectional Study ◽  
Wilcoxon Test ◽  
University Hospital ◽  
Average Score ◽  
Cross Sectional ◽  
Significant Difference ◽  
The Difference ◽  
The Impact

Background: Medical equipment plays a key role in diagnosis, treatment, and medical education. Outsourcing is delegating a part or all activities of an organization to a party (e.g., individuals or organizations) outside the organization, which has an important role in the organization’s productivity. Objectives: The current study aimed to investigate the effect of outsourcing the department of medical equipment of a university hospital in Tehran, Iran, by emphasizing costs, profits, and performance. Methods: This was a descriptive-analytical and cross-sectional study. This study investigated the documents and financial records of the Financial Office to calculate costs and revenues. Additionally, a researcher-developed questionnaire was used to evaluate the effect of outsourcing on employees’ performance and financial performance. A total of 36 subjects were randomly selected, following the sampling formula (the response rate: 72%). The Kolmogorov-Smirnov test was applied to test for a normal distribution. As the data were not normally distributed, the Wilcoxon test was used. Furthermore, the t-test and analysis of variance were used to study the difference in the effect of outsourcing and age, gender, and educational level. The data were analyzed using SPSS software (version 19). Results: According to the findings, there was a significant difference before and after outsourcing in the costs and revenues of the Medical Equipment Department. Concerning the effect of outsourcing on the performance, the “human resources” factor obtained the highest mean (3.37), which indicated the poor perspective of the staff in this aspect. Moreover, the lowest score was related to the “cost-effectiveness” (2.96), which was an average score. There were weak scores concerning the dimensions of management (3.28) and quality of services (3.36). Conclusions: Considering the importance of staff in the hospital, it is necessary to pay serious attention to the impact of different types of reforms intended to increase the revenues and reduce the costs of hospitals on the staff of the organization by emphasizing managerial and human resources dimensions, which not only will increase the efficiency of the organization and satisfaction of the staff but also translated into better quality.

Personal Audio System: Hearing Symptoms, Habits, and Sound Pressure Levels Measured in Real Ear and a Manikin

2020 ◽  
Vol 63 (6) ◽  
pp. 2016-2026
Author(s):  
Tamara R. Almeida ◽  
Clayton H. Rocha ◽  
Camila M. Rabelo ◽  
Raquel F. Gomes ◽  
Ivone F. Neves-Lobo ◽  
...  
Keyword(s):  
Sound Pressure ◽  
Daily Basis ◽  
Cross Sectional Study ◽  
Normal Hearing ◽  
Chi Square ◽  
Cross Sectional ◽  
The Real ◽  
Significant Difference ◽  
Sound Pressure Levels ◽  
Audio System

Purpose The aims of this study were to characterize hearing symptoms, habits, and sound pressure levels (SPLs) of personal audio system (PAS) used by young adults; estimate the risk of developing hearing loss and assess whether instructions given to users led to behavioral changes; and propose recommendations for PAS users. Method A cross-sectional study was performed in 50 subjects with normal hearing. Procedures included questionnaire and measurement of PAS SPLs (real ear and manikin) through the users' own headphones and devices while they listened to four songs. After 1 year, 30 subjects answered questions about their usage habits. For the statistical analysis, one-way analysis of variance, Tukey's post hoc test, Lin and Spearman coefficients, the chi-square test, and logistic regression were used. Results Most subjects listened to music every day, usually in noisy environments. Sixty percent of the subjects reported hearing symptoms after using a PAS. Substantial variability in the equivalent music listening level (Leq) was noted ( M = 84.7 dBA; min = 65.1 dBA, max = 97.5 dBA). A significant difference was found only in the 4-kHz band when comparing the real-ear and manikin techniques. Based on the Leq, 38% of the individuals exceeded the maximum daily time allowance. Comparison of the subjects according to the maximum allowed daily exposure time revealed a higher number of hearing complaints from people with greater exposure. After 1 year, 43% of the subjects reduced their usage time, and 70% reduced the volume. A volume not exceeding 80% was recommended, and at this volume, the maximum usage time should be 160 min. Conclusions The habit of listening to music at high intensities on a daily basis seems to cause hearing symptoms, even in individuals with normal hearing. The real-ear and manikin techniques produced similar results. Providing instructions on this topic combined with measuring PAS SPLs may be an appropriate strategy for raising the awareness of people who are at risk. Supplemental Material https://doi.org/10.23641/asha.12431435

Dental Arch Width in Children and Relationship to their Oral Habits

2019 ◽  
pp. 6-11
Author(s):  
Kohinur Akther ◽  
Md Zakir Hossain
Keyword(s):  
School Children ◽  
Cross Sectional Study ◽  
Primary School Children ◽  
Dental Arch ◽  
Sectional Study ◽  
Cross Sectional ◽  
Oral Habits ◽  
Arch Width ◽  
Bangladeshi Population ◽  
Dental Arch Width

Aim: Objectives: To analyze variations in dental arch width in relation to oral habits.   Materials and Methods : Cross sectional  study was carried out Department of Orthodontics & Dentofacial Orthopedics of Dhaka Dental College & Hospital, Dhaka with a total number of 600 primary school children of 3-6 years ages of Bangladeshi population. Results: This study was a cross sectional study conducted among the 600 children with 3-6 years old prima- ry school children of Bangladeshi population. According to present study, bottle feeding causes significant reduction in maxillary intercanine width and mouth breathers show significant reduction of both arches. Conclusion: It was observed that the children who had used a bottle had a significant reduction in maxillary intercanine width. Breathing through mouth appeared to be associated with a reduction in the size of both arches. This was more significant in the maxillary intercanine , mandibular  intercanine and mandibular molar widths. Therefore to prevent malocclusions, the public should be informed of the harm caused by certain oral habits, the benefits of breast-feeding, and the need to correct bad habits at early life. Ban J Orthod & Dentofac Orthop, April 2016; Vol-7 (1-2), P.6-11

Estimation of Trace Elements in Gingival Crevicular Fluid and Serum-Comparative Study in Healthy and Periodontitis

2017 ◽  
Vol 9 (5) ◽  
Author(s):  
Bhagavathami Meenaksh ◽  
Chitraa R. Chandran ◽  
Aravindhan Thathchari Ranganathan ◽  
Kavindapadi Venkateswaran Rama ◽  
Valarmathy Srinivasan
Keyword(s):  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Gingival Crevicular Fluid ◽  
Serum Zinc ◽  
Cross Sectional Study ◽  
Serum Copper ◽  
Cross Sectional ◽  
Inductively Coupled ◽  
Significant Difference ◽  
Copper Zinc

Background: This study aims to determine and compare the levels of trace elements copper, zinc, selenium and chromium in GCF and serum of patients with periodontitis and healthy individuals. Methods: This cross sectional study includes 24 study subjects recruited from the patients reporting to the Department of Periodontics , Tagore Dental College Chennai. All the selected patients were subjected to a clinical examination done by a single examiner. The estimation of trace elements Copper, Zinc, Selenium and Chromium in GCF and serum is performed using Perkin Elmer optima 5300 Inductively Coupled Plasma Emission Spectrometer (ICPOES). Results: GCF and serum copper levels showed no significant difference in both periodontitis and healthy groups . Selenium levels tend to be the same in both groups. Serum zinc levels are more in periodontitis patients than healthy subjects (p less than 0.01). GCF chromium levels are found to be more in patients with periodontitis than healthy. Conclusions : More research is therefore needed to monitor the role of these trace elements C with an increased sample size to ascertain whether they are associated with a reduced risk of periodontitis.

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