scholarly journals Dental Number Anomalies and Their Prevalence According To Gender and Jaw in School Children 7 To 14 Years

2018 ◽  
Vol 6 (5) ◽  
pp. 867-873
Author(s):  
Milaim Sejdini ◽  
Sabetim Çerkezi
Keyword(s):  
Primary Schools ◽  
Statistical Significance ◽  
Third Molars ◽  
Missing Teeth ◽  
The Third ◽  
Significant Difference ◽  
Typical Shape ◽  
The Individual ◽  
Professional People ◽  
Descriptive Statistical Analysis

OBJECTIVES: This study aimed to find the prevalence of Hypodontia and Hyperdontia in different ethnicities in patients from 7 to 14 years old.MATERIAL AND METHODS: A group of 520 children were included aged 7 to 14 years, only the children who went to primary schools. Controls were performed by professional people to preserve the criteria of orthodontic abnormalities evaluation. The data were recorded in the individual card specially formulated for this research and all the patients suspected for hypodontia and hyperdontia the orthopantomography for confirmation was made. The data were analysed using descriptive statistical analysis using c2 test for the significant difference for p ˂ 0.05 and Fisher test for p < 0.05.RESULTS: Hypodontia, not counting the patients with missing third molars was found in 18 patients researched or 3.46%. The most commonly missing teeth were the second lower premolars, the second upper premolars, second upper lateral incisors followed by the lower incisors. Hyperdontia not including the third molars was found in 4 cases of the participants or 0.76% from which the most frequent atypical tooth mesiodens and one case of bilateral hypodontia of a lateral upper incisor with typical shape and size. But there were no significant differences when tested between genders and jaws.CONCLUSION: The prevalence we found is similar to the prevalence in the region. Our findings indicate that there is a difference between the genders in the prevalence of hypodontia, but without statistical significance, while for hyperdontia we can’t see such a difference between the sexes.

scholarly journals HYPODONTIA WITH CLASS I MALLOCLUSION AND MAXILLARY DIASTEMA

2018 ◽  
Vol 1 (2) ◽  
pp. 98
Author(s):  
Bunga Fatimah ◽  
I Gusti Aju Wahju Ardani
Keyword(s):  
Case Management ◽  
Class I ◽  
Tooth Agenesis ◽  
Third Molars ◽  
Missing Teeth ◽  
Facial Aesthetics ◽  
The Third ◽  
Congenitally Missing Teeth ◽  
Congenitally Missing ◽  
Severe Type

Background: Dental agenesis is a term that refers to the absence of one or more teeth, and hypodontia refers to a severe type of tooth agenesis involving less than six or more than one congenitally missing teeth, excluding the third molars. Purpose: This aimed to report the correction of overbite by using intrusion archwires. Case: A 20-year-old female patient had class I malocclusion and deep overbite, incisor retroclination, mild mandibular crowding and agenesis of 12, 13, 14, 15, and 24. Case management: The case was treated with non-extraction using 0.022 pre-adjusted technique to level and unravel using intrusion archwires to correct the deep overbite. Conclusion: The 17-month treatment resulted in a corrected overbite, good occlusion, and good facial aesthetics.

scholarly journals Initial Experience with Digital Patient Briefing in Computed Tomography

2018 ◽  
Vol 191 (06) ◽  
pp. 540-546
Author(s):  
Babak Alikhani ◽  
Bennet Hensen ◽  
Arne Grosser ◽  
Maria Inés Cartes Febrero ◽  
Markus von Bestenbostel ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Statistical Significance ◽  
Age Groups ◽  
Patient Age ◽  
Open Questions ◽  
Patient Âgé ◽  
Significant Difference ◽  
Student’S T ◽  
The Individual ◽  
Time Required

Purpose To assess digital patient briefing as an alternative to conventional paper documentation. Materials and Methods 502 patients with a planned computed tomography (CT) examination were selected for digital patient briefing using the E-ConsentPro software from Thieme Compliance on an iPad by Apple (Cupertino, California, USA). For the analysis, three age groups were formed. The time required for the patient briefing, the number of open questions as well as the time needed for discussion with physicians were determined. Student’s t-test was performed to assess statistical significance. Results There was no significant difference between patient age and briefing time which was about 20 minutes on average. The number of open or unclear questions increased with patient age. While patients younger than 30 years of age had about 2 open questions, patients over 30 and 60 years had about 4 and 5 questions, respectively. The total time needed for discussion with physicians was less than 2 minutes on average. A significant difference in the time required for discussion with physicians could not be observed between the individual age groups. Conclusion Tablet-based digital briefing allows the storage of patient documents with reasonable time and effort. Furthermore, it minimizes the risk of data loss. Key Points  Citation Format

scholarly journals Bilateral Hypodontia of Mandibular Second Premolars and Lateral Incisors in a Nonsyndromic Patient: A Rare Case Report

2016 ◽  
Vol 1 (1) ◽  
pp. 24-26
Author(s):  
Shakun Kanjani
Keyword(s):  
Case Report ◽  
Rare Case ◽  
Permanent Teeth ◽  
Rare Occurrence ◽  
Third Molars ◽  
Missing Teeth ◽  
Dental Anomaly ◽  
Mahatma Gandhi ◽  
The Third ◽  
Rare Case Report

ABSTRACT Hypodontia is the term used to describe the developmental absence of one or more primary or permanent teeth, excluding the third molars. It is the most commonly occurring developmental dental anomaly and can be a challenge to manage clinically. Hypodontia can occur in association with syndrome or it may occur in nonsyndromic patient. Bilateral occurrence is common but it is very rare to see two bilateral congenital missing teeth in a nonsyndromic patient. This case report presents a rare occurrence of congenital bilateral missing mandibular second premolars and mandibular lateral incisors in a nonsyndromic patient. How to cite this article Agarwal N, Chaturvedy S, Marwah N, Mishra P, Kanjani S. Bilateral Hypodontia of Mandibular Second Premolars and Lateral Incisors in a Nonsyndromic Patient: A Rare Case Report. J Mahatma Gandhi Univ Med Sci Tech 2016;1(1):24-26.

scholarly journals Comparison between Total Echo Score and Total Commissural Morphology Score for the Outcome and Complication of Balloon and Surgical Closed Mitral Commissurotomy

1970 ◽  
Vol 1 (1) ◽  
pp. 34-43
Author(s):  
AK Choudhury ◽  
S Alam ◽  
GM Faruque ◽  
M Ali ◽  
NAM Momenuzzaman ◽  
...  
Keyword(s):  
Mitral Stenosis ◽  
Statistical Significance ◽  
Nyha Class ◽  
Technical Failure ◽  
Significant Difference ◽  
Class 1 ◽  
Procedural Complications ◽  
Mitral Commissurotomy ◽  
Closed Mitral Commissurotomy ◽  
The Individual

Background: Now a days mitral balloon valvoplasty(PTMC) is an alternative to closed surgical mitral commissurotomy (CMC) for the treatment of selectcd patients with rheumatic mitral stenosis. To compare between the total echo score (Wilkin’s score) total echocardiographic commissural morphology score (TC) for outcome and as a predictors of complications of both procedures. Method: We carried out a prospective well matched comparative observational study on 123 patients of symptomatic mitral and three patients were rejected due to procedural complications and technical failure. Result: Age ranges were 12 55 years, mean (±SD) age was 28.83+9.33 years. Out of 120 patients, 41 (34.2%) were male and 79 (65.8%) were female. Before procedure, 29 (48.3 %) and 32 (53.3 %) patients were in NYHA class III.Total Wilkins score was in the range of 4 10. Mean (±SD) of total Wilkins score were 6.43+1.53 and 6.30+1.33. Good commissural morphology (score 0 1) were present in 38 (63.5%) and 36 (60%) and bad commissural morphology (score 2 3) were present in 22 (26.7 %) and. 24 (40 %) in both groups respectively. Mitral valve area increased from a mean (±SD) of 0.80±0.16 and 0.79±0.15 to 1.94 ±0.24 and 1.92 + 0.26cm2. in PTMC and CMC groups respectively. Transmitral mean and peak pressure gradient also decreased significantly in both the individual procedures but no statistically significant difference between the procedures. NYHA class improved by class 1 or more in most patients in both groups. There were 2 (3.33 %) cases of cardiac temponade due cardiac perforation in PTMC group, of which one need repair and CMC and another was managed conservatively. There were also 3 (5 %) patients in PTMC and I (1. 66 %) patient in CMC developed peripheral thromboembolism and one patient (1.66%) developed arteriovenous fistula in PTMC group. Mitral regurgitation grade III, developed in 3 (5%) patients and one patient (1.66%) in PTMC and CMC respectively having no statistical significance. Conclusion: Total Wilkin’s score and total commissural morphology score were found to be most important preprocedural variable associcated with the outcome and as a predictors of post procedural complications Keywords: PTMC, CMC, Mitral stenosis, Rheumatic heart diseaseDOI: http://dx.doi.org/10.3329/cardio.v1i1.8202 Cardiovasc. j. 2008; 1(1) : 34-43

Evaluation of Mandibular Third Molar Region in a Turkish Population Using Cone-Beam Computed Tomography

2020 ◽  
Vol 16 (9) ◽  
pp. 1105-1110
Author(s):  
Büyük Kaan Orhan ◽  
Dilek Yılmaz ◽  
Mehmet Ozgur Ozemre ◽  
Kıvanç Kamburoğlu ◽  
Orhan Gulen ◽  
...  
Keyword(s):  
Statistical Significance ◽  
Third Molar ◽  
Mandibular Canal ◽  
Third Molars ◽  
Second Molar ◽  
The Third ◽  
Impacted Mandibular Third Molar ◽  
Mandibular Third Molar ◽  
The Relationship ◽  
Molar Region

Objectives: To evaluate impacted mandibular third molar tooth region and obtain linear measurements using CBCT images and to assess the relationship between the impacted third molar and the mandibular canal. Methods: CBCT scans of 351 patients (208 females, 143 males) were assessed. Age, gender, and impaction site were recorded for each patient. The relationship of third molars with the vertical axis of second molars, 2nd molar resorption and the relationship between third molar apices and the mandibular canal were assessed. In addition, the distance between ramus and second molar, mesiodistal width of the third molar, the angle between third molar and second molar, and width of the third molar capsule were measured. Binary Logistic Regression, Chi-Square Test, and General Linear Model were used for statistical analysis. Results: The highest percentage of impaction was found for mesioangular followed by transversal and vertical. The transversal impacted third molars revealed a significant association with adjacent second molar root resorption (p<0.001). There was a statistical significance between the second molar resorption and distance between ramus and second molar (p<0.001). The mesioangular impacted third molars revealed significant relation with the mandibular canal (p<0.05). The most frequent variation found was the dental canal followed by the retromolar canal. In general, higher measurement values were obtained for men when compared to women (p<0.05). Conclusion: CBCT assessment of the third molar region provided useful information regarding impacted mandibular third molar surgery operations.

Anatomic Variability of the Morphometric Parameters of the Third Ventricle of the Brain and Its Relations to the Shape of the Skull

2020 ◽  
Author(s):  
Iuliia Zhuravlova ◽  
Maryna Kornieieva
Keyword(s):  
Third Ventricle ◽  
Morphometric Parameters ◽  
Clinical Anatomy ◽  
Transverse Diameter ◽  
Aged People ◽  
The Third ◽  
Anteroposterior Diameter ◽  
Significant Difference ◽  
The Individual ◽  
The Brain

Abstract Objectives The defining of the normal parameters of spacious relations and symmetry of the ventricular system of the brain depending on the gender and age is currently one of the topical research problems of clinical anatomy. The present research aims to identify the correlation between the morphometric parameters of the third ventricle of the brain and the shape of the skull in the middle aged people. Design This is a prospective cohort study. Setting This study was set at the Trinity School of Medicine. Participants A total of 118 normal computed tomography scans of the head of people aged from 21 to 86 years (mean age: 48.6 years ± 17.57) were selected for the study. Main Outcome Measures The anteroposterior diameter, transverse diameter, and height of the third ventricle were measured and compared in dolichocranial, mesocranial, and brachycranial individuals. Results The study has shown the presence of a statistically significant difference between morphometric parameters of the third ventricle of the brain in dolichocranial, mesocranial, and brachycranial individuals. Conclusion The morphometric parameters of the third ventricle of the brain, such as height, anteroposterior diameter, and transverse diameter, depend on the individual anatomic variability of the skull shape and gender.

scholarly journals A randomised trial of rigid stump dressing following trans-tibial amputation for peripheral arterial insufficiency

2004 ◽  
Vol 28 (1) ◽  
pp. 22-27 ◽  
Author(s):  
K. R. Woodburn ◽  
S. Sockalingham ◽  
H. Gilmore ◽  
M. E. Condie ◽  
C. V. Ruckley
Keyword(s):  
Confidence Interval ◽  
Controlled Trial ◽  
Statistical Significance ◽  
Randomised Trial ◽  
Significant Difference ◽  
Group 2 ◽  
Peripheral Arterial ◽  
The Individual ◽  
Post Trial ◽  
Randomised Controlled

Background: A multicentre randomised controlled trial to determine the effect of a rigid plaster dressing applied at the time of trans-tibial amputation on the number of days to casting for a prosthesis, and the incidence of post-operative stump infection. Methods: Patients requiring trans-tibial amputation were randomised to one of 2 groups: In Group 1 (intervention) a rigid above-knee plaster dressing was applied at operation and patients were managed according to a standard protocol. Group 2 (control) had the individual surgeons' usual non-rigid dressing regime. Rehabilitation data were extracted from the national physiotherapy database. On completion of the trial a questionnaire was sent to all participants. Results: 14 surgeons in 7 centres enrolled 154 patients, with 96 ultimately cast for a prosthesis. Patients who received a rigid dressing (n=78) had reduced days to casting (median 36, confidence interval 30–47) when compared with other dressings (n=76) (median 42, confidence interval 36–45), these differences did not reach statistical significance. There was no significant difference in post-operative infection rates in the two groups. 64% of surgeons, and all physiotherapists and vascular nurses responding to the post-trial questionnaire felt that the rigid dressing was an improvement on their normal regime and wished to continue with the technique. Conclusions: Despite a median reduction of 6 days in time to casting in patients treated with a rigid post-operative dressing this failed to reach statistical significance: The majority of participants who replied to the post-trial questionnaire expressed a wish to continue using the rigid dressing technique. To confirm that the trends shown in this trial are statistically valid a larger trial is needed.

scholarly journals Possibilty of the lower third molar eruption: Radiographic analysis

2006 ◽  
Vol 63 (2) ◽  
pp. 159-162
Author(s):  
Nenad Nedeljkovic ◽  
Zorana Stamenkovic ◽  
Zoran Tatic ◽  
Alek Racic
Keyword(s):  
Third Molar ◽  
Occlusal Plane ◽  
Third Molars ◽  
The Third ◽  
Crown Width ◽  
Significant Difference ◽  
Mutual Relations ◽  
The Right ◽  
B Lines ◽  
Third Molar Eruption

Backgraund/Aim. To assess the possibility of the eruption of the lower third molar on the basis of the measured parameters: retromolar space, mesiodistal crown width of a molar and the third molar angulation. Methods. The investigation included 104 patients both sexes (43 boys, and 61 girls), 16 to 25 years old (meanage, 18 years). It was performed using the orthopanthomographic radiographs analysis of those patients. Each radiograph was covered by tracing paper, and the contoures of the followiny anatomic details were drawn: a) the crown and root contours of third molars, upper and lower central incisors, distal molars in occlusion, anterior edge of ramus mandible, b) lines: 1. the occlusal plane, 2. the line of retromolar space, 3. the mesiodistal crown width of third molar, 4. the axial shaft of the third molar and the distal angle between occlusal plane and the axial shaft of the third molar. The values were measured with an orthodontic caliper: the diameter of retromolar space, diameter of mesiodistal width, the value of distal angle between occlusal plane and axial shaft of molar. Results. A favourable angulation of the lower third molar (more than 60?) was found in, boys (left 27.90%, right 32.55%), girls (left 39.34%, right 37.77%). A favourable relationship between the diameters of mesiodistal width of the third molar and retromolar space was found in, boys, (left 13.59%, right 16.27%), girls, (left 8.19%, right 14.75%). A favorable relationship between the diameters of mesiodistal width of the third molar and the retromolar space and the angulation was found in boys, (left 9.30%, right 11.62%), girls, (left 6.56%, right 9.83%). Conclusion. There was not any statistically significant difference found between the relation of the retromolar value, third molar mesiodistal diameter, or of the third molar angulation to the left and the right side nor of their mutual relations in comparing boys and girls. A favorable prognosis was found in 9.33% of the patients.

Meta-Analysis of Observational Studies on the Most Commonly Missing Permanent Dentition (Excluding the Third Molars) in Non-Syndromic Dental Patients or Randomly-Selected Subjects, and the Factors Affecting the Observed Rates

2015 ◽  
Vol 39 (3) ◽  
pp. 198-207 ◽  
Author(s):  
V Rakhshan
Keyword(s):  
Meta Analysis ◽  
Permanent Teeth ◽  
Third Molars ◽  
Missing Teeth ◽  
Factors Affecting ◽  
Dental Patients ◽  
The Third ◽  
Significant Publication Bias ◽  
Missing Tooth

Purpose: The aim of this study was to summarize the literature on the most frequently missing permanent teeth excluding the third molars. Study design: A search was conducted to find all the available literature (in various scientific and general databases) regarding the most commonly missing teeth with respect to ethnicity and time, as well as factors biasing this outcome. Quality assessment was done to exclude studies with inconsistent information, poor designs, or data pertaining to syndromic cases or the third molars. The role of biasing factors was as well quantitatively assessed using statistical analyses [Q-test, Egger regression, Spearman correlation coefficient, multiple linear regression, Welch t-test] (α=0.05). Results: A total of 81 reports was included. The meta-sample was heterogeneous (P=0.000, Q-test). No significant publication bias was detected (P&gt;0.1, Egger regression). The mandibular second premolar was reported as the most commonly missing tooth in most studies, followed by the maxillary lateral (the most commonly missing in the rest). In terms of the missing share of each tooth percent of all missing teeth, the mandibular second premolar and incisors are more likely to be absent, followed by the maxillary second premolar and lateral. The absence of different teeth can be affected by the ethnicity, sample types (epidemiological or dental patients), sample sizes (only in the case of bimaxillary second premolars), and the minimum ages of pooled subjects (only in the case of the maxillary lateral and the mandibular second premolar). Conclusions: Since enrolling younger patients can bias the results, older patients should be sampled.

scholarly journals Gene mutational analysis by NGS and its clinical significance in patients with myelodysplastic syndrome and acute myeloid leukemia

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Jifeng Yu ◽  
Yingmei Li ◽  
Tao Li ◽  
Yafei Li ◽  
Haizhou Xing ◽  
...  
Keyword(s):  
Gene Mutation ◽  
Induction Chemotherapy ◽  
Lower Incidence ◽  
Mutational Analysis ◽  
Statistical Significance ◽  
Age Groups ◽  
Gene Mutations ◽  
Related Gene ◽  
Significant Difference ◽  
The Individual

Abstract Background In this study, we retrospectively summarized the differences of molecular gene mutations between MDS and AML patients, as well as the young and older age groups of MDS and AML patients. We also analyzed the response of newly diagnosed AML patients to standard DA or IA induction chemotherapy and the relationship between the chemotherapy outcome and the frequency of different gene mutation abnormalities. Methods NGS assay covering 43 genes was studied in 93 de novo MDS and 325 non-M3 AML patients. Bone marrow samples from all patients underwent gene mutational analysis by NGS. Results At least one non-synonymous gene mutation was detected in 279 AML patients (85.8%) and 85 MDS patients (91.4%). Contrary to 59 years and younger AML patients, there was a significantly higher incidence of gene mutation in 60 years and older AML patients (2.37 vs 1.94, p = 0.034). Gene mutation incidence in 60 years and older MDS patients increased, but no statistical significance was present (1.95 vs 1.64, p = 0.216). AML patients had a significantly higher gene mutation incidence compared with MDS-MLD patients (2.02 vs 1.63, p = 0.046). Gene mutation incidence was higher in patients with MDS-EB1/EB2 compared with patients with MDS-MLD but there was no statistical significance present (2.14 vs 1.63, p = 0.081). AML patients had significantly higher incidences of CEBPA, FLT3-ITD, DNMT3A, NPM1 and IDH1/2 gene mutations (p = 0.0043, 0.000, 0.030962, 0.002752, and 0.000628, respectively) and a lower incidence of TET2 and U2AF1 gene mutations (p = 0.000004 and 0.000, respectively) compared with MDS patients. Among the individual genes in different age groups, there were significantly higher incidences of RUNX1, IDH2, TP53 and SF3B1 gene mutations (p = 0.0478, 0.0028, 0.0024 and 0.005, respectively) as well as a trend of higher ASXL gene mutation (p = 0.057) in 60 years and older AML patients compared to 59 years and younger patients. There was no statistically significant difference in MDS patients with the different age groups and among the individual genes. Between AML patients and MDS patients among the different gene functional groups, AML patients had a significantly higher incidence of transcriptional deregulation (27.4% vs 15.1%, p = 0.014963), activated signalling (36.3% vs 10.8%, p = 0.000002) related gene mutations as well as a significantly lower incidence of RNA spliceosome (6.15% vs 60.1%, p = 0.000) related gene mutations. Furthermore, among the patients who received either IA or DA regimen for induction chemotherapy, patients with IA regimen had a significantly better CR rate than those with DA regimen (76.6% vs 57.1%, p = 0.0228). Conclusions Different gene mutations had been found in majority of MDS and AML patients. MDS and AML patients had different gene mutation patterns. AML patients with fewer or no gene mutations had a better chance of achieving CR when treated with IA and DA regimen induction chemotherapy.

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