scholarly journals PROGNOSIS OF RETENTION AND ABNORMAL POSITION OF CANINES

2020 ◽  
pp. 40-47
Author(s):  
S.I. Doroshenko ◽  
O.A. Kaniura ◽  
K.V. Storozhenko ◽  
S.V. Irkha ◽  
D.O. Marchenko ◽  
...  
Keyword(s):  
Research Methods ◽  
Age Groups ◽  
Dental Arch ◽  
Abnormal Position ◽  
Group 12 ◽  
Significant Difference ◽  
The Difference ◽  
Close Relatives ◽  
Dental Apparatus ◽  
The Right

Canines play an important role in the act of chewing and especially in the aesthetics of the face when you smile. They also serve as a guide to the movements of the mandible “canine management” and they are more resistant to carious lesions. Germination of the canine embryos, unlike other teeth, occurs closer to the base of the jaw, so they erupt later than all front teeth, encountering a number of barriers and, above all, lack of space in the dental arch or its absence in case of early loss of temporary teeth. Given that the canines erupt after the incisors and the first premolars, it is possible to prevent their retention and abnormal eruption in the dental arch. This can be done by timely detection of changes in their main inclination, both to the base of the jaw and relative to the inclination of the erupted teeth, especially lateral incisors, the roots of which serve as a guide axis for canine eruption. The aim of the research was to increase the effectiveness of treatment of retention and abnormal eruption of canines by developing a method for their prediction and timely detection. During the research, 52 patients aged from 7 to 25 years, were divided into four age groups, and they were examined and admitted for orthodontic treatment: I group – 12 patients (23,1%) aged from 7 to 9 years, - with early variable occlusion; II group – 16 patients (30,7%) aged from 10 to 12 years, - at the final stage of variable occlusion; III group – 12 patients (23,1%) aged from 13 to 15 years, - with early permanent occlusion; IV group – 12 patients (23,1%) aged from 16 to 25 years, - with a permanent bite. All patients did not have acute occlusal abnormalities. The following research methods were used during the examination: clinical (presence of abnormal position of the canines in parents and close relatives); anthropometric (measurements on diagnostic models); radiological, mainly orthopantomography (measurement of the axial inclination of the canines relative to the base of the jaw and adjacent teeth) and static research methods. Research in all four groups determined that the inclining of the upper canines to the base of the jaw, averaged on the Maxilla – 86,4° (right side – 86,7°, left side – 86,2° with a difference – 0,5°), and on Mandible – 100,75° (right side – 100,7°, left side – 100,8° with the difference – 0.1°). Axial inclinations of the upper lateral incisors averaged 99,1° (right side – 95,8°, left side – 102,5° with the difference – 6,7°), and lower lateral incisors – 100,65° (right side – 100,7°, left side – 100,8° with the difference – 0,1°). The difference in the inclinations of the canines and lateral incisors on the Maxilla averaged 11,6° (right side – 9,5°, left side – 13,7° with the difference 4,2°) and on the Mandible – 8,9° (right side – 8,6°, left side – 9,3° with the difference – 0.7°). As for these indicators in patients of each of the four age groups, they varied significantly. Conducted research has detected that the most objective indicator in the eruption of abnormal eruption of canines is the significant difference in their inclinations with lateral incisors, which serve as the guiding axis of eruption. In patients from the I group, the difference in inclinations and lateral incisors was on the Maxilla on the right – 9,3°, on the left – 16,0°; and on the Mandible – right side 11,8°, left side 12,2°. In patients from the II group the difference in inclinations and lateral incisors was on the Maxilla on the right side – 13,8°, on the left side – 18,1°; and on the Mandible – right side 7,1°, left side 10,5°, in accordance. In the III group on the Maxilla from the left side – 10,6° and right side – 8,6°; and on the Mandible – 9,6° and 11,1°, in accordance. The difference in inclinations of these teeth was on the Maxilla – right side 4,3°, left side 12,3°; and on the Mandible – 6,0° and 3,3°, in accordance. On this basis, we proposed a method for predicting abnormal eruption of the canines using the constructed “canine triangle” on the orthopantomogram formed by the intersection of the axial inclinations of the canines and lateral incisors (ւВ) with the plane of the base of the jaw, on which the segment (a) is the base of the triangle. The more difference between the inclinations of the canines and lateral incisors ( > 10°), that is the larger the value (ւВ), the longer the size of the base (a) of the triangle, which indicates the difficulty of eruption of the canines in the future (outside the dentition or retention). Timely detection of a significant difference in the inclinations of canines and lateral incisors can prevent abnormal eruption and retention of canines by adjusting their inclinations with lateral incisors and eliminating the lack of space in the early stages of formation of the dental apparatus.

scholarly journals Length and Depth of the Central Sulcus: A Postmortem Study

2014 ◽  
Vol 11 (1) ◽  
pp. 19-24
Author(s):  
Kanij Fatema ◽  
Shamim Ara ◽  
Mushfika Rahman ◽  
Halima Afroz ◽  
Anjuman Ara Sultana ◽  
...  
Keyword(s):  
Right Hemisphere ◽  
Age Groups ◽  
Central Sulcus ◽  
Cross Sectional ◽  
Male And Female ◽  
Significant Difference ◽  
Group A ◽  
The Difference ◽  
Group B ◽  
The Right

Context: The central sulcus, which is located between the primary motor and primary somatic sensory cortex is an important structure and landmark of the cerebral hemisphere. Morphology of the central sulcus varies with age, sex, manual skill, handedness and in many diseases. This study is carried out to establish a normal standard in different age groups in length and depth of the central sulcus. Materials and Methods: A cross-sectional, analytical type of study was conducted in the department of Anatomy, Dhaka Medical College, on one hundred and forty (140) on human cerebral hemispheres. The samples were divided into four different age groups i.e. Group A (20-29 years), Group B (30-39 years), Group C (40-49 years) and Group D (50-59 years). All the samples were studied morphologically. Results: The mean length of central sulcus was 102.89±3.55 mm to 96.83±3.92 mm in male and 98.00±5.17 mm to 96.29±2.56 mm in female. Depth of the central sulcus was 20.02±2.41 mm to 21.50±2.21 mm in male and 20.50±2.57 mm to 21.36±1.87 mm in female. The difference in mean length of the right central sulcus between male and female was statistically significant in group A (p<0.05) and B (p<0.05). The difference in mean depth of the central sulcus between male and female was not statistically significant in any age groups. No significant difference was found between right and left hemisphere for both length and depth of the central sulcus. The difference in mean length and depth of the central sulcus between different age groups for both left and right hemisphere was not statistically significant in any age group. Conclusion: The length and depth of the central sulcus showed gradual decreasing values with advancing age. DOI: http://dx.doi.org/10.3329/bja.v11i1.20504 Bangladesh Journal of Anatomy, January 2013, Vol. 11 No. 1 pp 19-24

Does body position, age, and heart rate induce IOP’s changes?

2021 ◽  
pp. 112067212110233
Author(s):  
Marcelina Sobczak ◽  
Magdalena Asejczyk ◽  
Malwina Geniusz
Keyword(s):  
Heart Rate ◽  
Body Position ◽  
Age Groups ◽  
Cardiovascular Parameters ◽  
Entire Cohort ◽  
Significant Difference ◽  
Group A ◽  
The Difference ◽  
Group B ◽  
Effect Of Age

Objectives: The main goal of this research was to determine the differences between the values of intraocular pressure (IOP) in the supine and sitting positions, and to assess the effect of age and cardiovascular parameters. Methods: Seventy-two healthy adults were enrolled and classified into age groups: 20–30 years (group A), 31–40 years (group B), and 41–71 years (group C). Corneal biometry and cardiovascular parameters, such as heart rate (HR), were measured. IOP measurements were taken in the sitting position (IOPS) and in the supine position (IOPL) using the iCare® Pro tonometer. Results: A significant difference between the IOPS and IOPL in the entire cohort was found ( p < 0.001). Regarding the age subgroups, a significant difference ( p < 0.001) between the IOPS and IOPL was obtained in group A (2.6 ± 1.6 mmHg) and group C (1.5 ± 1.3 mmHg). There were no significant differences in the IOPS between groups. The highest IOP values were obtained for group A. The correlations between HR and IOPS are statistically significant for group A and group B, and for HR and IOPL-S for group B only. Multivariate analysis showed that HR has a significant influence on the difference in IOP in the two body positions. Conclusion: A statistically significant difference between the effect of age and the values of IOPS and IOPL was shown. Cardiovascular parameters showed some relevant statistical dependencies, but with a rather marginal significance in young people. The influence of body position for the measurement of IOP for healthy subjects does not seem to matter, despite the fact that there are some dependencies that are statistically significant.

EXPRESS: Serum Carbohydrate Antigen72-4 levels decrease with age in females but not males in Beijing, China

2021 ◽  
pp. 000456322110269
Author(s):  
Tongmei Duan ◽  
Xun Chen ◽  
Jing Wu ◽  
Ronghai Li ◽  
Huijuan Guo ◽  
...  
Keyword(s):  
Age Groups ◽  
Reference Interval ◽  
Carbohydrate Antigen ◽  
Female Group ◽  
Healthy Population ◽  
Age Difference ◽  
Significant Difference ◽  
The Difference ◽  
And Gender ◽  
Beijing China

Objective: Carbohydrate antigen 72-4 (CA72-4) is widely used in the diagnosis and monitoring of many cancers. However, there are few studies on the differences of CA72-4 levels in terms of age and gender. Methods: 10957 healthy subjects were divided into two groups according to gender and three age groups. The serum CA72-4 were detected. Statistical analysis was performed by SPSS. Results: The CA72-4 level in female group was significantly higher than that in male group. The level of CA72-4 gradually decreased with age. Compared with the age >60 group, the CA72-4 levels were increased in the age 46-60 group and 16-45 group (P >0.05, respectively). To better observe the age difference, the age 16-45 and 46–60 group were combined into the age 16-60 group. In comparison to the age >60 group, the CA72-4 level of age 16-60 group was significantly increased (P =0.000). In the age >60 group, there was no difference between genders. Nevertheless, the difference between the sexes in the age 16-60 group was significant (P =0.023). Conclusions: The reference interval of CA72-4 for local healthy population was established. CA72-4 levels gradually decreased with the increase of age, and CA72-4 level in females aged 16-60 years (0-18.0 U/mL) was higher than in males (0-14.5 U/mL), however there was no gender difference in the age group above 60 years old (0-14.5 U/mL). Moreover, male CA72-4 was no significant difference among all age groups, while the potential mechanism of female changes with age needed further study.

scholarly journals Clinical Evaluation of Bracket Bonding Using Two Different Polymerization Sources

2008 ◽  
Vol 78 (5) ◽  
pp. 922-925 ◽  
Author(s):  
Nikolaos S. Koupis ◽  
Theodore Eliades ◽  
Athanasios E. Athanasiou
Keyword(s):  
Failure Rate ◽  
Orthodontic Treatment ◽  
Light Emitting Diode ◽  
Rank Test ◽  
Dental Arch ◽  
Halogen Lamp ◽  
Failure Rates ◽  
Bond Failure ◽  
Significant Difference ◽  
The Right

Abstract Objective: To comparatively assess clinical failure rate of brackets cured with two different photopolymerization sources after nine months of orthodontic treatment. Materials and Methods: The sample of this study comprised 30 patients who received comprehensive orthodontic treatment by means of fixed appliances. Using the same adhesive, 600 stainless steel brackets were directly bonded and light cured for 10 seconds with the light-emitting diode (LED) lamp or for 20 seconds with the conventional halogen lamp. A split-mouth design randomly alternated from patient to patient was applied. Failure rates were recorded for nine months and analyzed with Pearson χ2 test, and log-rank test at α = .05 level of significance. Results: The overall failure rate recorded with the halogen unit (3.33%) was not significantly different from the failure rate for the LED lamp (5.00%). Significantly more failures were found in boys compared with girls, in the mandibular dental arch compared with the maxillary arch, and in posterior segments compared with anterior segments. However, no significant difference was found between the right and left segments. Conclusion: Both light-curing units showed sufficiently low bond failure rates. LED curing units are an advantageous alternative to conventional halogen sources in orthodontics because they enable a reduced chair-time bonding procedure without significantly affecting bond failure rate.

scholarly journals Difference in height of maxillary alveolar ridge on edentulous women and dentate women using panoramic radiography

2019 ◽  
Vol 10 (2) ◽  
pp. 1243-1248
Author(s):  
Cek Dara Manja ◽  
Dennis
Keyword(s):  
Panoramic Radiography ◽  
Total Sample ◽  
Mechanical Stimulus ◽  
Average Height ◽  
Alveolar Ridge ◽  
Cross Sectional ◽  
Average Value ◽  
Significant Difference ◽  
The Difference ◽  
The Right

The height of the maxillary alveolar ridge can be measured using panoramic radiography. The decline occurred because the height of the alveolar ridge undergoes slow physiological resorption due to the absence of mechanical stimulus. The purpose of this research is to know the difference and the average height of the maxillary alveolar ridge in edentulous and dentate women using panoramic radiography. This study is an analytical method with a cross-sectional approach. A total sample of 40 women, edentulous and dentate has been measured. Measurements were made by measuring the distance between the lowest point of the infraorbital ridge and alveolar crest maxilla on the incisor point, right and left premolar, right and left molar. A statistical test is done using independent t-test. The results showed that the average value of a dentate women sample is greater than edentulous. The average value obtained by the dentate sample is greatest in incisor point by 37,57mm± 3,34mm and the smallest at the right molar point by 33,87mm ± 2,81mm. The average value obtained by the edentulous sample is greatest in incisor point by 35,30mm ± 2,79mm and the smallest at the right molar point by 31,84mm ± 3,85mm. It can be concluded that there is a significant difference in the height of the maxillary alveolar ridge on an edentulous sample and dentate, except the right molar teeth. The average height of the maxillary alveolar ridge in an edentulous sample is 33,35mm ± 3,43mm, and the dentate sample is 35,66mm ± 3,21mm.

scholarly journals Quantitative electroencephalography as a tool for objective neurophysiological seizure diagnosis: A retrospective study

2020 ◽  
Vol 0 ◽  
pp. 1-6
Author(s):  
Rajesh Kumar ◽  
Tribhuwan Kumar ◽  
Kamlesh Jha ◽  
Yogesh Kumar
Keyword(s):  
Energy Level ◽  
Matched Control ◽  
Age Groups ◽  
Quantitative Electroencephalography ◽  
Beta Band ◽  
Significant Difference ◽  
Males And Females ◽  
The Mean ◽  
The Difference ◽  
Electrical Activities

Objectives: Seizure is the fourth most common neurological disorder in the world; it affects all age groups with equal possibility of occurrence in both males and females. Many antiepileptic drugs are available today, but its diagnosis is challenging. The present study attempted to see if seizure activities could be predicted by analyzing the pre-seizure electrical activities. The prediction may help in taking preventive measures appropriately beforehand in the individuals with seizure proneness. Material and Methods: We selected 11 generalized seizure patients and 19 control patients out of total 115 patients referred for electro-diagnostics for various reasons. EEG of the subjects recorded, segmented as per protocol, and analyzed using MATLAB and EEGLAB tools. Results: The mean energy level in alpha and beta band of the study subject was significantly lower (P = 0.04 and 0.004, respectively) as compared to the age matched control subjects. Theta and delta bands did not show any significant difference between the groups. The difference between the pre- and post-electrical seizure energy and entropy was statistically insignificant. Conclusion: The study shows that the energy level remains low in the seizure patients in the alpha and beta bands. This further goes down when electrophysiological seizure activities starts. The randomness or entropy does not alter significantly among the seizure subjects in comparison to non-seizure subjects.

Evaluation of Biomechanically Corrected Intraocular Pressure Measurements in Keratoconus and Forme Fruste Keratoconus

2020 ◽  
Vol 63 (6) ◽  
pp. 541-549
Author(s):  
Tomoya Nishida ◽  
Takashi Kojima ◽  
Takahiro Kataoka ◽  
Naoki Isogai ◽  
Yoko Yoshida ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Biomechanical Properties ◽  
Control Group ◽  
Pressure Measurements ◽  
Altman Plot ◽  
Significant Difference ◽  
The Difference ◽  
The Right ◽  
Corneal Biomechanical Properties ◽  
Forme Fruste Keratoconus

<b><i>Introduction:</i></b> Although biomechanically corrected intraocular pressure (bIOP) is available, the effectiveness of intraocular pressure (IOP) correction in keratoconus and forme fruste keratoconus (FFK) eyes has not been investigated. <b><i>Objective:</i></b> Evaluation of bIOP measurements in eyes with keratoconus and FFK. <b><i>Methods:</i></b> Forty-two eyes in 21 patients with keratoconus in one eye and FFK in the fellow eye were examined (KC/FFK group; mean age 24.62 ± 8.6 years; 16 males and 5 females). The control group consisted of 62 eyes in 31 unaffected subjects (mean age 26.26 ± 3.64 years; 15 males and 16 females). The bIOP was determined using a Scheimpflug-based tonometer (Corvis Scheimpflug Technology [Corvis ST®]) after measuring the IOP with a conventional non-contact tonometer (NIOP). The agreement between NIOP and bIOP values was examined using the Bland-Altman plot. The difference between NIOP and bIOP (bIOP correction amount) was compared between keratoconus and FFK eyes. <b><i>Results:</i></b> In the control group, there were no significant differences between right and left eyes in both NIOP and bIOP values (<i>p</i> = 0.975 and <i>p</i> = 0.224, respectively). In the KC/FFK group, NIOP values were significantly lower in the keratoconus eyes (9.93 ± 1.96 mm Hg) than in the FFK eyes (12.23 ± 3.03 mm Hg; <i>p</i> = 0.0003). There was no significant difference in bIOP values between the right and left eyes of the KC/FFK group (<i>p</i> = 0.168). The bIOP correction amount was significantly increased in keratoconus eyes (3.58 ± 2.12 mm Hg) compared to in FFK eyes (1.80 ± 3.32 mm Hg; <i>p</i> = 0.011). <b><i>Conclusions:</i></b> For eyes with keratoconus and FFK, the bIOP method is effective to adjust IOP measurements based on corneal biomechanical properties.

scholarly journals Assessment of functional capacity in elderly residents of an outlying area in the hinterland of Bahia/Northeast Brazil

2010 ◽  
Vol 68 (1) ◽  
pp. 39-43 ◽  
Author(s):  
Gilson de Vasconcelos Torres ◽  
Luciana Araújo dos Reis ◽  
Luana Araújo dos Reis
Keyword(s):  
Activities Of Daily Living ◽  
Functional Capacity ◽  
Daily Living ◽  
Age Groups ◽  
The Elderly ◽  
Cross Sectional ◽  
Instrumental Activities ◽  
Significant Difference ◽  
The Difference ◽  
Outlying Area

OBJECTIVE: To assess the functional capacity and to determine the difference between the means of functional capacity (basic and instrumental activities of daily living) and the age groups of elderly residents in an outlying area in the hinterland of Bahia/Northeast of Brazil. METHOD: Analytical study with cross-sectional design and a sample of 150 elderly individuals enrolled in four Health Units in the municipality of Jequié, Bahia, Brazil. The instrument consisted of sociodemographic and health data, the Barthel Index and the Lawton scale. RESULTS: In all, 78.00% of the elderly were classified as dependent in the basic activities and 65.33% in the instrumental activities of daily living. Using the Kruskal-Wallis test, we found a statistically significant difference between the means of instrumental activities and the age groups (p=0.011). CONCLUSION: An elevated number of elderly were classified as dependent in terms of functional capacity and increased age is related to greater impairment in the execution of instrumental activities of daily living.

scholarly journals In Bangladeshi Female Cadaver, the Change of Outer Diameter of the Infundibulum of Fallopian Tube in Advancing Age

2018 ◽  
Vol 8 (2) ◽  
pp. 23-25
Author(s):  
Hasna Hena ◽  
Shamim Ara ◽  
Hosna Ara Perven ◽  
Dilruba Siddiqua ◽  
Fatema Johora ◽  
...  
Keyword(s):  
Fallopian Tube ◽  
Age Groups ◽  
Normal Structure ◽  
Outer Diameter ◽  
Fallopian Tubes ◽  
Cross Sectional ◽  
Medical College ◽  
The Difference ◽  
Group B ◽  
The Right

Context: Problems with the fallopian tubes can lead to infertility. Disease can be defined and measured only in terms of deviation from normal structure. Detailed morphological and histological knowledge is essential for the diagnosis and management of fallopian tube disease. Objectives: To identify the outer diameter of the infundibulum and its changes with advancing age. Study Design: Cross sectional descriptive type of study. Period and place: Department of anatomy, Dhaka Medical College from July 2008 to June 2009. Materials: Present study was performed on post mortem fallopian tubes of 60 Bangladeshi female. Among them lowest age was 12 years and highest age was 50 years. Methods: Samples were divided into three differential age groups: Group A (10-13 years), Group B (14-45 years), Group C (46-50 years). All samples were studied morphologically and histologically. Results: The mean outer diameter of the infundibulum of the right and left fallopian tubes ranged from 0.80±0.01 to 1.03±0.22 mm. The difference between all the groups were statistically significant (p < 0.001). Conclusion: There was change in outer diameter of the infundibulum of fallopian tubes of left and right in relation to age. Update Dent. Coll. j: 2018; 8 (2): 23-25

scholarly journals A study on maxillary sinus dimensions by computed tomography in population of Tamil Nadu

2016 ◽  
Vol 05 (02) ◽  
pp. 091-096
Author(s):  
N Muthukumaravel ◽  
K.Y Manjunath
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Tamil Nadu ◽  
Maximum Width ◽  
Average Width ◽  
Computed Tomographic ◽  
Significant Difference ◽  
The Difference ◽  
The Right ◽  
Maxillary Sinuses

Abstract Background and aims: Maxillary sinuses are the largest of the paranasal sinuses known for variability in their dimensions. The maxillary sinus dimensions can be better ascertained in living by using computed tomography instead of plain radiography. This study was planned for highlighting the variations in the dimensions of the maxillary sinuses of population of Tamil Nadu region. The aims of the present study were to estimate dimensions of the maxillary sinuses on computed tomographic (CT) scan of the head of patients from Tamil Nadu and to compare the data gender wise and sidewise. Material and methods: Maximum width, height and depth of maxillary sinus of both sides were measured in CT - head images of 100 males and 100 females of 20-50 years of age in Tamil Nadu. Comparison of data between genders and sides by applying unpaired student "t" test was done. Results : The mean depth, height and width of both right and left maxillary sinuses were comparatively less in females than the males and the difference was found to be statistically significant ( P <.0001). On comparison between the sides of maxillary sinuses, the depth and the height of maxillary sinus did not show any significant difference in the measurements (p >.05), whereas the width of the left side (23.96 mm) was higher than that of the right side (23.69) and the difference was found to be statistically significant (P<.05). The combined average maxillary sinus dimensions (in mm) for both genders in the study population of Tamil Nadu are as follows: Right side depth: 33.71 ± 1.00; Left side depth : 33.65 ± 1.22; Right side height: 34.66 ± 2.71; Left side height: 34.74± 2.48; Right side width: 23.69 ± 0.78 and Left side width: 23.96 ± 0.86. Conclusion: The dimensions of maxillary sinuses in males were found to be larger than those of females and this difference was statistically significant. The average width of the maxillary sinuses on the left side is significantly more than that of right sided sinuses. Computed tomography measurements of maxillary sinuses may be useful in gender determination.

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