scholarly journals Prevalence of dens invaginatus in young Israeli population and its association with clinical morphological features of maxillary incisors

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Anda Kfir ◽  
Nurit Flaisher Salem ◽  
Lobna Natour ◽  
Zvi Metzger ◽  
Noa Sadan ◽  
...  
Keyword(s):  
Statistical Significance ◽  
Morphological Characteristics ◽  
Morphological Features ◽  
Type I ◽  
Chi Square ◽  
Israeli Population ◽  
Potential Association ◽  
Chi Square Test ◽  
Maxillary Incisors ◽  
Dens Invaginatus

Abstract Dens invaginatus is an anomaly mostly observed in maxillary incisors. This study aimed to assess the prevalence of dens invaginatus in maxillary incisors in young Israeli population and to study its potential association with clinical coronal morphological features. Data was collected from periapical radiographs and clinical photographs of patients from Orthodontics Department between 2006 and 2018. Radiographic characteristics were evaluated and compared to clinical coronal morphological features. Statistical analysis was performed using the Pearson chi-square test with statistical significance set at p < 0.05. The sample included 1621 maxillary incisors from 547 patients. Dens invaginatus was observed in 422 (26%) of these teeth. Maxillary lateral incisors were more affected than central incisors. In 103 patients dens invaginatus was unilateral, while in all other cases it was bilateral. Unique clinical morphological characteristics were observed in 88% of the teeth that exhibited radiographic evidence of dens invaginatus. Dens invaginatus Type I was most frequently observed, accounting for 90% of the teeth. A significant association between clinical coronal morphological features and dens invaginatus was detected. Dens invaginatus is common in maxillary incisors of the study population. Several clinical morphological features may predict the presence of dens invaginatus.

scholarly journals Correlation of Myopia with Physical Exercise and Sleep Habits among Suburban Adolescents

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Yuan Qu ◽  
Jianfeng Yu ◽  
Wei Xia ◽  
Huijuan Cai
Keyword(s):  
Physical Exercise ◽  
Statistical Significance ◽  
Cross Sectional Study ◽  
Future Research ◽  
Sleep Habits ◽  
Chi Square ◽  
Cross Sectional ◽  
Wake Time ◽  
Potential Association ◽  
Chi Square Test

Purpose. To analyse the correlation of myopia with physical exercise and sleep habits to explore the possible risk or protective factors of juvenile myopia. Methods. This study was a retrospective cross-sectional study. A total of 1831 students aged 11–18 years from five schools in Qingpu completed questionnaires from 2018 to 2019; the students were divided into the nonmyopia group and the myopia group, with students in the myopia group having myopia in at least one eye. Based on the chi-square test, the variables with statistical significance were selected for the logistic regression analysis. Adjusted odds ratios (ORs) and 95% confidence intervals (CIs) were determined. Results. Myopia was positively associated with older age (OR = 2.216, 95% CI: 1.720–2.855), having a parent with myopia (father: OR = 2.463, 95% CI: 1.900–3.193; mother: OR = 2.853, 95% CI: 2.232–3.646), and a late bedtime during holidays (before 10 pm: p = 0.002; 10 pm-11 pm: OR = 1.516, 95% CI: 1.095–2.100; 11 pm-12 am: OR = 1.966, 95% CI: 1.383–2.795), but negatively correlated with male gender (OR = 0.693, 95% CI: 0.549–0.876), a late daily wake time (OR = 0.782, 95% CI: 0.621–0.985), and having more days per week of outdoor activities during the semester (OR = 0.764, 95% CI: 0.597–0.978). After adjustment for demographic characteristics, myopia was positively associated with a late bedtime during holidays (before 10 pm: p = 0.003; 10 pm-11 pm: OR = 1.570, 95% CI: 1.076–2.289; 11 pm-12 am: OR = 2.173, 95% CI: 1.451–3.253; after 12 am: OR = 1.786, 95% CI: 1.093–2.919), but negatively correlated with a late daily wake time during the semester (OR = 0.761, 95% CI: 0.581–0.997). Conclusion. The association of outdoor exercise with myopia among Chinese suburban adolescents does not seem to be as strong as that of sleep habits. Future research could seek to provide consistent evidence for a potential association between myopia and sleep habits.

scholarly journals Analysis of anatomy and configuration of the canal system of the maxillary second premolar in the population of Bosnia and Herzegovina

2021 ◽  
Vol 12 (1) ◽  
pp. 9-18
Author(s):  
Brankica Davidović ◽  
Ljiljana Bjelović ◽  
Igor Radović ◽  
Bojana Davidović ◽  
Svjetlana Janković ◽  
...  
Keyword(s):  
Bosnia And Herzegovina ◽  
Root Canal ◽  
Statistical Significance ◽  
Type I ◽  
Canal System ◽  
Chi Square ◽  
Morphological Variations ◽  
Root Canals ◽  
Single Root ◽  
Chi Square Test

Introduction. Successful endodontic treatment depends upon the clinician's knowledge and ability to recognize and diagnose the presence of anatomical and morphological variations of the root and canal system. The aim of this study was to establish the number of roots and root canal configurations of the maxillary second premolar in the population of Bosnia and Herzegovina. Methods. The study sample was comprised of 150 maxillary second premolar teeth extracted for orthodontic or prosthetic reasons. Endodontic drills were used for trepanation of cavum dentis, and the number and patency of each root canal were determined by Kexpander # 15. Then, the samples were decalcified, made transparent and colored, to enable 3D viewing of the canal system. Decalcified teeth were observed from two projections (clinical and approximal) and analyzed in detail with a magnifying glass under 3 × and 5 × magnification in order to determine the number of roots, number of canals, root canal configuration using Vertucci's classification and number of anastomoses between canals. Statistical significance was obtained using Chi-square test. Results. The results obtained by decalcification of the teeth showed that, by radiographic analysis from the clinical projection, all the teeth had a single root. While, by the analysis from the approximal projection, 94.0% had one, 6.0% two roots. From the approximal projection, 70.7% with a single root canal and 29.3% with two root canals are visualized. The most common type of root canal configuration in the maxillary second premolars was Type I in both clinical (87.9%) and approximal projection (40.7%). Conclusion. These results emphasize the importance of knowing the variations in root canal morphology, because excluding the possibility of morphological variations can lead to failure of endodontic therapy

scholarly journals The Accuracy of CBCT in the Detection of Dens Invaginatus in a Tunisian Population

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Rym Mabrouk ◽  
Latifa Berrezouga ◽  
Nadia Frih
Keyword(s):  
Clinical Symptoms ◽  
Tunisian Population ◽  
Type I ◽  
Chi Square ◽  
Type Iii ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Tunisian Patients ◽  
Chi Square Test ◽  
Dens Invaginatus

Objective. To assess the prevalence and characteristics and to classify the type of dens invaginatus (DI), in anterior teeth, basing on 200 Tunisian patients’ cone-beam computed tomography. Material and Methods. A retrospective study was performed using CBCT images of 200 Tunisian patients. Maxillary and mandibular anterior teeth were evaluated for the presence and characteristics of dens invaginatus. Results were reported as frequencies, means ± SD. Statistical evaluation of the presence of DI related to gender was performed by the Pearson chi-square test. Results. Dens invaginatus was observed in 42 out of 4945 examined teeth, with a prevalence of 0.85%.The anomaly affected especially maxillary lateral incisors ( p ≤ 0.001 ). DI location was unilateral in 36% and bilateral in 64%. Type II DI was the most commonly observed (47.61%), followed by type I (30.95%) and type III (21.42%). Apical periodontitis (AP) was mostly seen in type III DI, with a periapical index (PAI) varying from 3″ to 5 E″.The maxillary lateral incisors seem to be the most affected anterior teeth. The symmetric occurrence of DI was observed with a statistically significant difference ( p ≤ 0.001 ). Conclusion. Within the limits related to the present study, DI detected by CBCT is a rare anomaly that could be associated with AP. Maxillary anterior teeth should be bilaterally examined for DI in the absence of clinical symptoms.

Change in perception of sclerotherapy results after exposure to pre–post intervention photographs

2017 ◽  
Vol 33 (4) ◽  
pp. 282-287 ◽  
Author(s):  
Fabricio R Santiago ◽  
Mario Piscoya ◽  
Yung-Wei Chi
Keyword(s):  
Varicose Veins ◽  
Statistical Significance ◽  
Wilcoxon Test ◽  
Clinical Severity ◽  
Post Intervention ◽  
Chi Square ◽  
Severity Scores ◽  
Venous Clinical Severity Score ◽  
Before And After ◽  
Chi Square Test

Objective To evaluate patients’ self-perception of cosmetic improvement before and after they were presented with pre- and postprocedure photographs after sclerotherapy with 75% dextrose. Methods Treatments included sclerotherapy of reticular and varicose veins using 75% dextrose. All treated limbs were photographed and classified according to Clinical, Etiology, Anatomy, and Pathology classification and Venous Clinical Severity Score pre- and posttreatment. The patients were queried before and after viewing the photos during these visits and indicated if they were very unsatisfied, dissatisfied, satisfied, or very satisfied. Nonparametric kappa correlation coefficient and a Chi square test were used to measure associations among agreement (p < 0.05 indicated statistical significance). The paired Wilcoxon test was used to compare statistical differences in mean Venous Clinical Severity Scores measured at different times (p < 0.05 indicated statistical significance). Data were analyzed using STATA software (version 12). Results Individuals were more satisfied with the results of sclerotherapy after exposure to images portraying their limbs two months after the procedure (p = 0.0028). This effect was maintained six months after sclerotherapy (p = 0.0027). Conclusion Patient exposure to pre- and postsurgical photographs is a simple intervention with the potential of improving patient satisfaction up to six months after treatment with sclerotherapy.

scholarly journals Gloves Perforations in Minor Oral Surgical Procedures: A Comparison of Latex and Nitrile Gloves

2021 ◽  
Vol 30 (02) ◽  
pp. 103-106
Author(s):  
Ajeet Kumar ◽  
◽  
Naveed Iqbal ◽  
Javaria Farooq ◽  
Saad Uddin Siddiqui
Keyword(s):  
Local Anesthesia ◽  
Surgical Procedures ◽  
Statistical Significance ◽  
Descriptive Analysis ◽  
P Value ◽  
Dominant Hand ◽  
Chi Square ◽  
Oral Surgical Procedures ◽  
Latex Gloves ◽  
Chi Square Test

OBJECTIVE: This study was performed to compare incidence of perforations in Latex and Nitrile examination gloves during Minor Oral surgical procedures performed under local anesthesia. METHODOLOGY: 100 pairs of latex and 100 pairs of Nitrile examination gloves where used to perform 200 minor oral surgical procedures under local anesthesia. After completion of every minor oral surgical procedure each gloves was examined by Water Inflation method to observe presence or absence of Perforations. A data sheet was used to collect data including type of Gloves used (Latex or Nitrile) presence of perforations, sites of perforations and nature of minor oral surgical procedures. Data was entered and analyzed using SPSS version 20. Descriptive analysis was conducted to calculate frequency and percentages of Number and sites of perforations for both Nitrile and latex examination gloves. Chi Square test was used to find out statistical significance of difference of perforations rate between Nitrile and Latex gloves. P value of < 0.05 was considered significant. RESULTS: Out of 200 latex gloves 23 (11.5) had 29 perforations whereas out of total 200 Nitrile gloves 28 (14%) had 22 perforations. Nitrile gloves had a statistically significant higher rate of perforations as compared to Latex gloves. (P value 0.043). For both Nitrile and Latex gloves left non dominant hand had highest frequency of perforations Latex 18 (81.81%) perforations and Nitrile 18(62.06%). Index finger and thumb were most frequent sites of perforations in both Latex and Nitrile gloves. CONCLUSION: Gloves perforations were more common in Nitrile examination gloves however total number of perforations was more in Latex examination gloves.

scholarly journals Relationship of the Self-perception of Lifestyle with Level of Physical Activity in People with and without Type 2 Diabetes

2019 ◽  
pp. 1-7
Author(s):  
Briseida Mayel Perez-Avelino ◽  
Nicolás Padilla-Raygoza ◽  
Verónica Benitez-Guerrero ◽  
María Luisa Sánchez Padilla ◽  
Vicente Beltrán-Campos ◽  
...  
Keyword(s):  
Physical Activity ◽  
Type 2 Diabetes ◽  
Statistical Significance ◽  
Self Perception ◽  
Chi Square ◽  
Cross Sectional ◽  
Lifestyle Questionnaire ◽  
Chi Square Test ◽  
Relationship Of

Objective: To determine the relationship of the perception of lifestyle with the level of physical activity in people with type 2 diabetes and without type 2 diabetes. Study Design: Analytical cross-sectional observational study in Celaya, Guanajuato, Mexico. Methodology: Sample composed of 100 people with type 2 diabetes and 100 people without type 2 diabetes, the lifestyle questionnaire and IPAQ questionnaire were used. Descriptive statistics were calculated for sociodemographic variables; it was calculated Chi-square test and Odds Ratio.  To demonstrate the statistical significance of results, the value of P was set at .05. Statistical analysis was performed in STATA 13.0 ®. Results: In patients with Type 2 Diabetes predominated females, married, who never went school and elementary and BMI ≥ 25 kg/m2; among patients without Type 2 Diabetes, predominant males, singles, went school or university, BMI ≥25 kg/m2; no relationship was found between lifestyle perception and level of physical activity in adults with type 2 diabetes (X² = 0.0022 gl 1 P = .96) neither it was found a significant relationship between lifestyle perception and level of physical activity in adults without type 2 diabetes (X² = 5.23 gl 1 P = .02 RM = 2.85 95% CI = 0.80 to 10.4). Conclusion: The results show that self-perception of lifestyle and physical activity is different in people with less age, more schooling, males.

scholarly journals ULTRASOUND PREDICTABILITY OF LOWER UTERINE SEGMENT CESAREAN SECTION SCAR THICKNESS

2020 ◽  
pp. 9-11
Author(s):  
Madhu Kumari ◽  
Kumari Bibha ◽  
Abha Sinha ◽  
Debarshi Jana
Keyword(s):  
Cesarean Section ◽  
Gestational Age ◽  
Statistical Significance ◽  
P Value ◽  
Chi Square ◽  
Medical College ◽  
Chi Square Test ◽  
Uterine Scar ◽  
Age Range ◽  
The Given

Objective: The objective of this study is to find out association between scar thickness, assessed sonographically, and intraoperative findings (IOF). Study Design: Descriptive study. Place and Duration of Study: Department of Obstetrics and Gynecology, Sri Krishna Medical College and Hospital, Muzaffarpur, Bihar from June 2019 to May 2020. Methodology: A total of 70 pregnant patients were included in this study. Transabdominal ultrasound was done for scarred uteri. Sonographic findings were co-related with introperative findings. All the given data were entered on SPSS version 23. Age was expressed as mean ± SD. Parity, gestational age, and interval between cesarean sections were expressed as frequencies with percentages. Statistical analysis was done by using Chi-square test for categorical data for association between sonographic scar thickness and intraoperative findings. The statistical significance was set at p-value <0.05. Results: The age range of the patients was 20- 36 years with a mean of 27.91 ±3.690 years. Gestational age at the time of cesarean section was between 27-40 weeks of gestation with a mean of 37 ±2.126 weeks. The interval from previous cesarean was 10 months at the minimum, and 6 years at the maximum with a mean of 2.29 ±1.0 months. Mean scar thickness was 2.5 mm. Association between scar thickness (<1-3 mm) and intaoperative findings of dehiscence and rupture showed a p-value of <0.001. Conclusion: Sonographic assessment of a uterine scar has a practical application to determine the thickness of previous scar, and assess its integrity.

scholarly journals Incidences of Root Microcracks Caused by Hand and Rotary File System at Different Lengths

2019 ◽  
Vol 3 (9) ◽  
pp. 283-289
Author(s):  
Shuchi Sukul ◽  
Goldy Rathee ◽  
Parimal Anand ◽  
Sakshi Kataria ◽  
Pratibha Taneja
Keyword(s):  
File System ◽  
Statistical Significance ◽  
File Systems ◽  
In Vitro Study ◽  
Root Surface ◽  
P Value ◽  
Chi Square ◽  
Chi Square Test ◽  
Group B

OBJECTIVES: The present research was conducted to assess incidences of root microcracks caused by hand and rotary file system at different lengths MATERIAL AND METHODS: This in-vitro study was undertaken to assess incidence of root microcracks caused by hand and rotary file system at different lengths In total, 100 the mandibular premolar with straight roots determined with intact, fully formed apices were taken. Samples were randomly distributed into 5 groups based on the file system used: a) Group A: Control, b) Group B: Reciproc, c) Group C: WaveOne, d) Group D: One Shape and e) Group E: ProTaper. Pearson Chi-square test was used to determine the differences between groups. The dentinal defects were expressed as percentage of samples with microcracks in each group. Level of statistical significance was set at p-value less than 0.05. RESULTS: The chi square test was used to compare the Distribution of the number of teeth in which cracks were observed on the horizontal sections. It was found to be significant with group ProTaper showing maximum cracks at 3,6,9 mm level as compared to other file systemCONCLUSION: Nickel-titanium instruments causes cracks on the apical root surface or in the root canal wall. ProTaper causes maximum dentinal cracks as compared to other file systems

scholarly journals The effectiveness of acetic acid wash protocol and the interpretation patterns of blood contaminated cervical cytology ThinPrep® specimens

CytoJournal ◽  
2015 ◽  
Vol 12 ◽  
pp. 23 ◽  
Author(s):  
Nora K. Frisch ◽  
Yasin Ahmed ◽  
Seema Sethi ◽  
Daniel Neill ◽  
Tatyana Kalinicheva ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Statistical Significance ◽  
Cervical Cytology ◽  
Low Grade ◽  
Squamous Intraepithelial Lesions ◽  
Chi Square ◽  
Chi Square Test ◽  
Acid Wash ◽  
The Difference ◽  
Intraepithelial Lesions

Background: ThinPrep® (TP) cervical cytology, as a liquid-based method, has many benefits but also a relatively high unsatisfactory rate due to debris/lubricant contamination and the presence of blood. These contaminants clog the TP filter and prevent the deposition of adequate diagnostic cells on the slide. An acetic acid wash (AAW) protocol is often used to lyse red blood cells, before preparing the TP slides. Design: From 23,291 TP cervical cytology specimens over a 4-month period, 2739 underwent AAW protocol due to initial unsatisfactory smear (UNS) with scant cellularity due to blood or being grossly bloody. Randomly selected 2739 cervical cytology specimens which did not undergo AAW from the same time period formed the control (non-AAW) group. Cytopathologic interpretations of AAW and non-AAW groups were compared using the Chi-square test. Results: About 94.2% of the 2739 cases which underwent AAW were subsequently satisfactory for evaluation with interpretations of atypical squamous cells of undetermined significance (ASCUS) 4.9% (135), low-grade squamous intraepithelial lesions (LSIL) 3.7% (102), and high-grade squamous intraepithelial lesions (HSIL) 1% (28). From the 2739 control cases, 96.3% were satisfactory with ASCUS 5.5% (151), LSIL 5.1% (139), and HSIL 0.7% (19). The prevalence of ASCUS interpretations was similar (P = 0.33). Although there were 32% more HSIL interpretations in the AAW group (28 in AAW vs. 19 in non-AAW), the difference was statistically insignificant (P = 0.18). AAW category; however, had significantly fewer LSIL interpretations (P = 0.02). The percentage of UNS cases remained higher in the AAW group with statistical significance (P < 0.01). Conclusions: While AAW had a significantly higher percent of UNS interpretations, the protocol was effective in rescuing 94.2% of specimens which otherwise may have been reported unsatisfactory. This improved patient care by avoiding a repeat test. The prevalence of ASCUS and HSIL interpretations between AAW and non-AAW groups were comparable. Though not statistically significant, HSIL interpretations were relatively higher in the AAW group. LSIL interpretations showed lower prevalence in AAW group.

scholarly journals More focus on atypical glandular cells in cervical screening: Risk of significant abnormalities and low histological follow-up rate

CytoJournal ◽  
2020 ◽  
Vol 17 ◽  
pp. 22
Author(s):  
Pingping Zhong ◽  
Chenghong Yin ◽  
Yulan Jin ◽  
Tianbao Chen ◽  
Yang Zhan ◽  
...  
Keyword(s):  
Statistical Significance ◽  
Cervical Screening ◽  
Close Relation ◽  
Prior History ◽  
Pap Smears ◽  
Chi Square ◽  
Glandular Cells ◽  
Atypical Glandular Cells ◽  
Chi Square Test

Objectives: Atypical glandular cells (AGC) detected by Papanicolaou (Pap) smears are in close relation with adenocarcinoma and precursors detected by histopathology. Yet, sometimes the cytological diagnosis of AGC has been neglected. With increase of adenocarcinoma and precursors, we need more focus on glandular abnormalities. Material and Methods: Clinicopathological data of patients who had AGC on Pap smears between April 2015 and October 2018 and underwent histological follow-up were retrieved from the computerized database of Beijing Obstetrics and Gynecology Hospital, Capital Medical University. Patients with a prior history of cancer were excluded from the study. Statistical analyses were performed using Pearson’s Chi-square test in SPSS software version 23. P < 0.05 (two sided) was considered as statistical significance. Results: Liquid-based cytological examination of the uterine cervix was carried out in 164,080 women. Five hundred and twenty-five women were diagnosed with AGC, 314 with not otherwise specified (AGC-NOS), and 211 with favor neoplastic (AGC-FN). Only 310 cases had histological follow-up, 168 women (168/314, 53.5%) originally with AGC-NOS on Pap smears, and 142 (142/211, 67.3%) with AGC-FN. The median age of histological significant abnormalities was 46.7 years, and 126 women (126/162, 77.8%) were postmenopausal. Sixty-six cases (66/168, 39.3%) of AGC-NOS had significant abnormalities (96/142, 67.6%, AGC-FN). One hundred and sixty-two cases of significant abnormalities included 40 high-grade squamous abnormalities and 122 glandular abnormalities. AGC-FN was more likely to be associated with a clinically significant abnormalities (P < 0.001) compared to AGC-NOS. Conclusions: Patients with AGC on Pap smears are in close relation with significant abnormalities, especially with significant glandular abnormalities on histopathology slices. AGC should be evaluated vigilantly with histological workup, especially if patients are diagnosed with AGC-FN and are aged 41–60 years. We need more focus on AGC.

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