scholarly journals Cone beam tomography and panoramic radiography in localization of impacted maxillary canine and detection of root resorption

2021 ◽  
Vol 8 (2) ◽  
pp. 106-112
Author(s):  
Seden Akan ◽  
◽  
Husamettin Oktay ◽  

ntroduction The aim of this study was to evaluate cases of impacted maxillary canines (IMC) using cone beam tomography (CBCT) and panoramic images in an attempt to assess if panoramic radiographs can provide information compatible with CBCT results regarding canine position and root resorption. Methodology Fifty-six impacted maxillary canines from 48 patients were radiographically evaluated. The positions of the canine teeth were classified by Sector localization on panoramic radiographs and the same teeth were also analyzed by KPG on CBCT. Root resorptions in maxillary lateral incisors were also evaluated on CBCT. The relationships between panoramic and CBCT findings were compared by Chi-square test and Fischer’s exact test. Results Statistically significant correlations were found between panoramic Sectors and KPG indexes (p<0.001). KPG index values of 1, 3 and 4 corresponded to the panoramic Sectors 1, 4 and 5, respectively; but KPG index 2 matched the panoramic Sectors 3 and more often 2. Mid-alveolar impaction generally coincided with score 1 for both KPG index and panoramic Sector. In palatally IMC, this score value was generally 2 or 3 for the KPG index and 4 for the panoramic Sector (p≤0.001). Root resorptions in maxillary lateral incisors showed significant differences according to Sector localization and KPG index (p<0.05), namely they coincided with 2 and 3 in Sector evaluation and 2, 3 and 4 in KPG index. Conclusions Sector location on OPG is found to be related to KPG index on CBCT, and it can help evaluate mainly certain positions of impacted canines; thus, unnecessary CBCT scans are not requested.

2018 ◽  
Vol 26 (0) ◽  
Author(s):  
Júlian Katrin Albuquerque de Oliveira ◽  
Eliana Ofélia Llapa-Rodriguez ◽  
Iza Maria Fraga Lobo ◽  
Luciana de Santana Lôbo Silva ◽  
Simone de Godoy ◽  
...  

ABSTRACT Objective: to evaluate the conformity of care practices of the nursing team during the administration of drugs through central vascular catheter. Method: a descriptive, prospective, observational study conducted in an Intensive Care Unit. The non-probabilistic intentional sample consisted of 3402 observations of drug administrations in patients with central vascular catheters. The previously validated collection instrument was constructed based on the Guideline for Prevention of Intravascular catheter-related infections. Data was collected through direct observations of nursing practices performed by the nursing team. The analysis used analytical, descriptive and inferential statistics (Chi-square test and Fisher’s exact test). Results: a total of 3402 procedures of drug administrations were observed. Female nursing technicians performed the highest number of actions. In none of the procedures did the professional perform all necessary actions. 0.2% of drug administrations were preceded by hand hygiene and 1.3% by disinfection of the multidose vial, ampoule or injectors. Conclusion: the practice evaluated was classified as undesirable. Failure to achieve the desired conformity was probably due to the low adherence of professionals to the practice of hand hygiene and disinfection of materials, injectors and connectors.


2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Tifanny Tantoso ◽  
Mega Sari Sitorus ◽  
Lita Feriyawati ◽  
Dian Dwi Wahyuni

Obesity is a worldwide problem that has been steadily increasing even in developing countries. Obesity has been linked to various types of cancer, one of which is breast cancer. Breast cancer has been classified into various types based on gene and hormone receptor expressions, which offered new insights to therapies and prognoses. We conducted a case-control study using 42 breast cancer patients and 43 healthy women, all of which are older than 55 years of age and have experienced menopause, and for case subjects, additional immunohistochemistry profiles have been provided. Data were collected by interviews and medical records. For data analysis, we used Pearson’s Chi-Square test and Fisher’s Exact test. Results showed that high BMI is significantly associated with breast cancer, and risk is elevated (p < 0.05, OR = 1.263, 95% CI = 1.007-1.583). No significant association with molecular subtypes was observed.


2022 ◽  
Vol 3 (1) ◽  
Author(s):  
Fernanda Cristina Barbosa Pereira Queiroz ◽  
Christian Luiz Da Silva ◽  
Nilton Cézar Lima ◽  
Jamerson Viegas Queiroz ◽  
Carmem Kistemacher Barche ◽  
...  

A pandemia COVID-19 intensificou a diversidade de tecnologias de aprendizagem na educação superior, de maneira impositiva, desmistificou usos remotos, à fronteira da totalidade do ensino à distância a todos cursos superiores, em atendimento aos protocolos sanitários. Todavia, os eixos de aprendizagem (Ensino-Pesquisa-Extensão), tiveram que se adequar ao emprego das tecnologias educacionais. Sob essa abordagem, emergem questões, buscando examinar impactos que os docentes vivenciaram na pandemia para assegurar continuidade de tais eixos. Os dados contaram com 560, respostas válidas, de docentes da educação superior, distribuídos em todas regiões do Brasil. O estudo de abordagem quantitativa contou com o método da estatística não paramétrica, teste qui-quadrado, teste exato de Fischer e U de Mann Whitney. Resultados demonstraram que a adaptação e adoção de novas estratégias aos eixos de aprendizagem foram superadas pelos docentes sem identificações de impactos notórios que gerassem barreiras ou impeditivos. Entretanto, as relações familiares e sociais, assim como a saúde mental e física dos docentes, despertaram como impactos percebidos. Estudos foram sugeridos empregando expectativas diversas, sob contextos que analisem a exclusão digital e a saúde mental como interseccionalidade e enfoque de discussão em período pandêmico e pós-pandemia em países em desenvolvimento.   The pandemic COVID-19 intensified the diversity of learning technologies in higher education, in an imposing way, demystified remote uses, to the border of the totality of distance learning to all higher education courses, in attendance to sanitary protocols. However, the learning axes (Teaching-Research-Extension) had to adapt to the use of educational technologies. Under this approach, questions emerge, seeking to examine the impacts that the teachers experienced in the pandemic to ensure the continuity of these axes. The data counted on 560 valid answers from teachers of higher education, distributed in all regions of Brazil. The quantitative approach study relied on the non-parametric statistical method, chi-square test, Fischer's exact test, and Mann Whitney's U test. Results showed that the adaptation and adoption of new strategies to the learning axes were overcome by the teachers without the identification of notorious impacts that would generate barriers or impediments. However, family and social relationships, as well as the mental and physical health of the faculty members aroused as perceived impacts. Studies were suggested employing diverse expectations under contexts that analyze digital exclusion and mental health as intersectionality and focus of discussion in pandemic and post-pandemic period in developing countries.


Medicina ◽  
2021 ◽  
Vol 57 (10) ◽  
pp. 1082
Author(s):  
Sarkis Sozkes ◽  
Iwona Olszewska-Czyż

Background and Objectives: Due to the specific working conditions dental professionals represent a group of high risk of infection and COVID-19 pandemic in many ways have influenced their working environment. The aim of this study was to evaluate effects of COVID-19 pandemic on working conditions of dentists in Poland and Turkey. Materials and Methods: The study was an anonymous online questionnaire conducted among thedentists in two countries: Poland and Turkey. The survey consisted of general questions, COVID-19 pandemic infection and working history as well as working conditions before and during pandemic. Chi-square test, Fisher’s Exact test, Fisher Freeman Halton test and Continuity (Yates) Correction were used to compare qualitative data. Results: The study was conducted with a total of 400 participants, 162 (40.5%) men and 238 (59.5%) women, aged between 23 and 67. The mean age of the participants was 42.39 ± 9.99 years. Positive COVID-19 test results among dentists in Poland were found to be significantly higher than in Turkey. Time of dental procedures during the COVID-19 pandemic in Poland and Turkey was significantly increased. The usage of N95/FFP2 or N99/FFP3 masks and surgical gowns during COVID-19 pandemic compared to pre-COVID-19 periods was clearly higher (p < 0.05). Reusable full-face and half-face elastomeric respirators are increasingly used in Turkey. During the COVID-19 pandemic a 25% decrease in dentists’ income in Poland (81%) was significantly high than in Turkey (47.5%). Conclusions: COVID-19 pandemic has influenced working conditions of dentists. Many dentists got infected during the pandemic, dental procedures’ time has increased, and protective equipment usage has become higher. Further studies analyzing the working conditions of dentists during COVID-19 pandemic should be conducted for better planning of future decisions taken by governments and authorities.


Author(s):  
Anil Chakradhar ◽  
Manisha Nepal ◽  
Siras Pradhan ◽  
Nisha Acharya ◽  
Pratibha Poudel

Introduction: Permanent mandibular first and second molars may display extra roots namely radix entomolaris and radix paramolaris which may have implications in endodontic treatment outcome, if missed. Objective: To evaluate the occurrence of extra roots in permanent mandibular first and second molars in a sample of Nepalese population. Methods: This analytical cross-sectional study was done at Dhulikhel hospital. Convenience sampling technique was utilised for data collection of 773 CBCT images. Images from June 2018 to June 2020 were retrospectively screened for presence of fully erupted bilateral mandibular first and second molars. Presence of extra roots were recorded and laterality, gender, and racial variations were analysed by Fisher’s exact test and Chi-square test using SPSS v.20. Results: For mandibular first molars, out of 517 patients, 65 (11.38%) had radix entomolaris: 38 (13.2%) female and 27 (9.54%) male. Among 38 females; occurrence was 21 (7.3%) bilateral, 16 (5.56%) unilateral right and 1 (0.34%) unilateral left side. Likewise, among 27 males, the occurrence was 15 (5.3%) bilateral, 6 (2.1%) unilateral right and 6 (2.1%) unilateral left side. Regarding races, 50 (14.6%) were Mongoloids and 15 (6.6%) were Aryans. No radix paramolaris was found in mandibular first molars. For mandibular second molars, out of 623 patients, radix entomolaris and paramolaris were observed in 0.8% and 0.48% respectively. Conclusion: The overall occurrence of radix entomolaris in mandibular first and second molars was found to be 11.38% and 0.8%, respectively. Practitioners should be aware of these unusual variations to avoid iatrogenic mishap due to missed canal.  


Author(s):  
Gisella G. Calero-Hinostroza ◽  
Pedro L. Tinedo-López ◽  
Carmen R. García-Rupaya

The aim of this study was to evaluate the prevalence and distribution of pulp stones in a group of Peruvian adults using cone beam tomography (CBCT). Materials and methods: 60 randomly selected CBCT from a tomographic center in Lima, Peru were analyzed. A total of 1263 images of teeth using the Point 3D Combi 500 S tomograph were evaluated. Images analysis was performed with Real Scan software and all teeth were evaluated in sagittal, axial and coronal views. All measurements were subjected to a chi square test. (p<0.05). Results: Of the 1263 teeth, 30.8% presented pulp calcifications through the CBCT. The prevalence of calcifications was higher in women than in men. The maxillary and mandibular molars were the groups of teeth with the highest frequency of pulp stones. There was significance between the pulp stones and the gender, age range, type and state of the tooth. Conclusions: The maxillary first molars had a higher prevalence of pulp calcifications than the mandibular ones. The presence of caries increased the possibility of the appearance of these calcifications, specifically in the maxillary teeth. CBCT could be a sensitive tool to detect pulp stones. Knowledge of the distribution of pulp stones can help dentists in the clinical treatment of endodontics.


2018 ◽  
Vol 47 (1) ◽  
pp. 25-30
Author(s):  
Jhonatan Thiago LACERDA-SANTOS ◽  
Gélica Lima GRANJA ◽  
Jalber Almeida dos SANTOS ◽  
Julliana Cariry PALHANO-DIAS ◽  
José Cadmo Wanderley Peregrino de ARAÚJO-FILHO ◽  
...  

Abstract Objective This research investigate the presence of external root resorption (ERR) in second molars caused by impacted third molars in panoramic radiographs, relating to the position of third molars according to classification of Winter, Pell and Gregory. Material and method A cross-sectional, retrospective study using panoramic radiographs obtained from January 2014 to December 2015. The inclusion criterion was the presence of a second molar adjacent to an impacted third molar. Data were analyzed using descriptive and inferential statistics. Pearson's Chi-Square Test and Fisher's Exact Test (p≤0.05) were performed. Result The sample consisted of 584 panoramic radiographs, 356 (60.95%) of women, and 228 (39.05%) of men, the mean age was 25.31 years. The prevalence of ERR was 12.5%, and the group of 14-24 year olds was the most affected (p = 0.46). The presence of ERR was statistically higher in the mandible (42.1%) with p=0.01. The ERR located in the cervical (57.1%) and medium (58.8%) thirds was proportionally higher in the teeth with B2 (p=0.02) and mesio-angular positions (p=0.26). Conclusion The prevalence of ERR in second molars, caused by impacted third molars, was shown to be similar to results found in the literature, with no gender preference, this affects young patients, occurring frequently in mandible teeth, and presents greater severity in the cervical and middle thirds. The B2 and mesio-angular positions were more prone to ERR.


2015 ◽  
Vol 23 (2) ◽  
pp. 283-290 ◽  
Author(s):  
Alessandra Marcuz de Souza Campos ◽  
Camila de Oliveira Chaoul ◽  
Elenice Valentim Carmona ◽  
Rosângela Higa ◽  
Ianê Nogueira do Vale

Aim: To assess the concept of exclusive breastfeeding held by nursing women by comparing the period they consider that they perform it and the infants' age at the introduction of additional liquids. METHOD: Cross-sectional descriptive study conducted with 309 women who delivered babies at a university hospital in the interior of São Paulo, Brazil. The data were subjected to descriptive analysis; the variables of interest were crossed using the non-parametric Kruskal-Wallis test, the chi-square test and Fisher's exact test. RESULTS: Approximately 30% of the women reported having introduced additional liquids before the infants reached aged six months old, while asserting that they were performing exclusive breastfeeding. The following variables were associated with early introduction of liquids: lack of employment (p = 0.0386), younger maternal age (p = 0.0159) and first pregnancy (p = 0.003). CONCLUSION: The concept of exclusive breastfeeding might not be fully clear to women, as they seem to believe that it means not to feed the children other types of milk but that giving other liquids is allowed. These results show that promotion of breastfeeding should take beliefs and values into consideration to achieve effective dialogue and understanding with mothers.


2003 ◽  
Vol 4 (3) ◽  
pp. 87-97 ◽  
Author(s):  
Metin Güngörmüş ◽  
H. Murat Akgül

Abstract Purpose The purpose of this study is to present the clinical and radiological features of 27 cases of central giant cell granuloma (CGCG) of the jaws. Materials and Methods This study was carried out on 27 cases diagnosed as CGCG, ranging in age from 8 to 70 years. The patient's age, sex, location of the lesion, expansion caused by the lesion, and greatest diameter were evaluated. Radiographs and radiological descriptions were studied for the features of border definition, radiopacity, locularity, root resorption, tooth displacement, and tooth association. Data were analyzed with Chi square test, Fisher's exact test, Mann Whitney U-test, and the Student t-test. Results It was determined 89% of CGCG occurred prior to the age of 40. Seventy-eight percent of the cases were females. In addition, it was observed that these lesions occurred primarily in the mandible mostly anterior to the molar region. It was determined most of the lesions were multilocular. Unilocular lesions averaged 23.75 mm and multilocular lesions were 53.00 mm. In 24 (89%) cases regular borders were seen, and in three cases diffuse borders were observed. There was bone expansion in 44% of the cases. The cases with bone expansion were 60.00 mm in average size, and the cases without bone expansion were 24.00 mm in average size. Seventy-eight percent of lesions were associated with teeth, and there was tooth displacement in 43% of these lesions. The lesions with tooth displacement were 18.33 mm in average size, and the lesions without tooth displacement were 44.00 mm in average size. Conclusions It was determined there is a significant correlation between the locularity, tooth displacement, and bone expansion with the size of the CGCG. Citation Güngörmüs M, Akgül HM. Central Giant Cell Granuloma of the Jaws: A Clinical and Radiologic Study. J Contemp Dent Pract 2003 August;(4)3:087-097.


2016 ◽  
Vol 12 (36) ◽  
pp. 32
Author(s):  
Alexandra Mihaela Stoica ◽  
Monica Monea ◽  
Dragos Dan Sita ◽  
Mircea Buruian

Objectives: The aim of our study was to analyse the utility of the CBCT systems among the dental residents form the Dental University of TarguMures. Material and methods: We conducted an anonymous survey using a questionnaire that included 11 questions. All the 55 participants from all dental specialties studied at the Dental University Center Targu-Mures. The completed questionnaires were collected the results were evaluated and statistically analyzed using chi-square test. Results: Most residents have learnt about the CBCT during the university studied by participating at different radio-imagistic courses outside the curriculum. Only 33 (60%) residents recommend daily a CBCT for supporting their diagnosis most of them being oral surgeons and 7 (12.72%) of them occasionally recommend between 1 and 5 CBCTs a month. Conclusions: The CBCT system used as an imagistic evaluation in all dental specialties is essential and the advantages can be found in the accuracy of establishing a correct diagnosis, creating a treatment plan and results evaluation.


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