Radiographic measurement of tibial joint angles in sheep

2009 ◽  
Vol 22 (03) ◽  
pp. 204-209 ◽  
Author(s):  
K. Hette ◽  
R.S. Volpi ◽  
O.C.M. Pereira-Junior ◽  
M.J. Mamprim ◽  
V. Colombi da Silva ◽  
...  

SummaryThe aim of this study was to establish normal reference values of anatomic and mechanical joint angles of the tibia in sheep at different age groups. Eighteen clinically healthy Santa Ines sheep were used. The animals were divided into three equal groups according to age: Group I – from six- to eight-months-old, Group II – 2-years-old, Group III – from three- to five-years-old. Anatomic medial proximal and lateral distal tibial angles, mechanical proximal and distal tibial angles, and anatomic caudal proximal and anatomic cranial distal tibial angles were measured from tibiae radiographs (n = 36). In the craniocaudal view, the mean values of the anatomic medial proximal, anatomic lateral distal, mechanical medial proximal, and mechanical lateral distal tibial joint angles were 89.6°, 86.6°, 91.4°, and 85.19° respectively. In mediolateral view, the mean values of the anatomic caudal proximal and anatomic cranial distal tibial angles were 64.55° and 105.69°, respectively. The joint orientation angles of the tibia in sheep showed similar values regardless of animal age for both anatomic and mechanical axes.

2016 ◽  
Vol 46 (8) ◽  
pp. 1466-1471 ◽  
Author(s):  
Flor Diana Yokoay Claros Chacaltana ◽  
João Antonio Tadeu Pigatto ◽  
Ione Terezinha Denardin

ABSTRACT: The aim of this research was to measure the intraocular pressure (IOP) of normal chinchilla eyes using the rebound tonometer. A further aim was to assess whether there were differences in the values of intraocular pressure in relation to animals age, gender and time of day. Thirty-six chinchillas were divided into three groups of 12 chinchillas each, by age: Group I (2-6-month-old), Group II (20 and 34 months) and Group III (37 and 135 months). Ophthalmic examination was performed previously by Schirmer tear test, slit lamp biomicroscopy, indirect ophthalmoscopy and fluorescein test in all chinchillas. Three measurements of intraocular pressure were assessed on the same day (7, 12 and 19h). Tonometry was performed on both eyes using the rebound tonometer after calibration in "p" mode. Statistical analysis was performed with SigmaPlot for Windows. The mean IOP for groups I, II and III were 2.47±0.581mmHg, 2.47±0.581mmHg and 2.51±0.531mmHg, respectively. No significant differences were reported between age and IOP and no significant differences were reported between the time of day and IOP. The IOP in chinchillas did not differ significantly between genders or ages of the animals, and did not change with time of day.


1966 ◽  
Vol 23 (5) ◽  
pp. 623-649 ◽  
Author(s):  
Richard S. Wydoski ◽  
Edwin L. Cooper

The reproductive rate of brook trout populations from infertile Pennsylvania streams was determined. The standing crops for eight streams varied between 14 and 41 lb/acre. Trout in age-groups 0 through III were found to grow slowly with very few individuals reaching a total length of 6 inches.The seasonal development of ova was determined by measuring all ova larger than 0.2 mm from selected females. The maturing ova of most females of age-groups II and III increased in diameter from 0.9 mm in February to 1.0 mm in June, 1.75 mm in July, 2.5 mm in August, 3.0 mm in September, and 4.0 mm in October. Maturing females could be distinguished from immature females by late August or early September on the basis of ova diameters. The mean diameter of ripe ova from 67 females was 4.05 mm with a range between 3.37 and 5.01 mm for individual trout ranging from 4.6 to 8.6 inches total length.The relationship between the number of mature ova and the total length of the female for one population was described by a curvilinear regression (log Y = −0.5361 + 3.23 log X, where Y = number of eggs, and X = the total length of the fish) for brook trout between 3.6 inches (18 eggs) and 7.7 inches (213 eggs). Variation in this relationship existed among streams.Ova production was estimated as 9050 ova per acre for one population and 13,620 ova per acre for another. Age-group-I females contributed approximately 9% of this production; age-group-II females, 54%; and age-group-III females, 37%. An ecological life table was constructed for two populations comparing rates of survival, age-specific fecundity rates, and reproductive rates.


Biomedika ◽  
2011 ◽  
Vol 3 (2) ◽  
Author(s):  
Mahmud Kholifa

Effect of in ltration due to the action of anesthesiasubstance on terminal nerve  bers maxillary molars the anesthesia uid  ow through the bone viahavers channels.This study is a quasi-experimental studies (clinical trials), which aims to determine the difference of onset and durationLidocaine between age groups 15-24 years age group 25-34 years in the case of extraction a molar tooth I or II maxilla conducted on patients who came to the Polyclinic FKG UGM, Yogyakarta. The number of samples obtained was 34 samples divided into two groups, Group I were patients with 15-24 years of age or younger, group II is patients aged 25-34 years or older. The data obtained areonset and duration of the age group 15-24 years compared with onset and duration of Lidocaine in the age group 25-34 years. The data obtained were analyzed by t-test with signicance level (p <0.05). The results of this study indicate that there are no signi cant differences between the onsetLidocaine in the age group 15-24 years with onset on the Lidocaine group 25-34 years. There is also a non-signi cant difference between Lidocaineduration in the group aged 15 - 24 years with a duration of Lidocaine on the group 25-34 years at p <0.05. The mean - median onsetLidocaine in the age group 15-24 years was 60.3 seconds with a range between 22-95 seconds while the onset on the Lidocaine group 25-34 years was 55.5 seconds with a range between 14-111 seconds. The mean - average durationLidocaine in the age group 15-24 years was 162.59 minutes with a range between 120-195 minutes while the duration of Lidocaine on the group 25-34 years was 184.41 with a range between 120-330 minutes.


2021 ◽  
Vol 6 (1) ◽  
pp. 244-248
Author(s):  
M. A. Pasichnyk ◽  
◽  
A. I. Furdychko ◽  
I. I. Gorban ◽  
I. R. Fedun ◽  
...  

There are numerous domestic and foreign studies of periodontal disease in pregnant women, but there are still a number of unresolved issues. The data about the development of periodontal tissue diseases in pregnant women in terms of age is not enough. The purpose of this work was to study the development of periodontal disease in pregnant women in different age groups. Material and methods. A survey of 83 women in the ІІ and ІІІ trimesters of pregnancy, aged 19-45 years, was divided into three groups according to age. Group I (34 people) included pregnant women aged 19-25 years, group II (29 people) had pregnant women aged 26-35 years, group III (20 people) comprised pregnant women aged 36-45 years. Periodontal and hygienic indices were determined to assess the clinical signs of periodontal disease (to assess the clinical signs of periodontal disease, periodontal and hygienic indices were determined (papillary-marginal-alveolar index, degree of bleeding gums, Schiller-Pisarev test, numerical value of Schiller-Pisarev test – Svrakov's number and simplified index of cavity hygiene). Results and discussion. The obtained results indicated a high level of periodontal disease in pregnant women. Periodontal disease was found in 74.7% of subjects. The study found a significant progression of periodontal tissue pathology in pregnant women over 26 years of age, indicating that women in this age group were at significant risk of periodontal disease. The obtained data indicated that the value of the bleeding index was the lowest in pregnant women with periodontal disease of group I, and the highest in women of group III. The value of the PMA index differed 1.3 times (p˂0.05) in pregnant women of groups I and II, 1.2 times (p˂0.05) in women of groups II and III, and 1.5 times (p˂0.05) in pregnant women of groups I and III. In addition, the likelihood of developing periodontal disease increased with age of women. Conclusion. The values of the Svrakov's number had a similar tendency to increase in age groups, as well as the results of the previously described indices. Hygiene in pregnant women of all ages who had periodontal disease was not very good. Thus, special attention should be paid to the timely diagnosis, treatment and prevention of periodontal disease in pregnant women, taking into account their age


Author(s):  
Chetan Hegde ◽  
Swapnil Mahade ◽  
Krishna Prasad D.

<strong><em>Background</em>:</strong>Since discrepancy between centric relation and maximum intercuspation has been an area of interest for dental fraternity for decades, the study was conducted to expand the concepts of the same when age is taken into consideration.<p><strong>Objective:</strong> This study was conducted to assess and measure the discrepancy between centric relation (CR) and maximum intercuspation (MI) at right and left condyles in three age groups, compare the discrepancy at right and left condyles between three age groups and right and left side condyles within the same age group.</p><p><strong>Methods:</strong> Sixty healthy subjects were selected and divided into three groups of twenty subjects each. Group I: 18-25 years, Group II: 30-45 years and Group III: more than fifty years. Preliminary impressions were made. Orientation relation was transferred to a semi-adjustable arcon articulator. Subjects were guided into centric relation using Dawson's bimanual manipulation technique and centric interocclusal record was made. The mandibular cast was related to the maxillary cast using centric interocclusal record. The casts were then allowed to fall into maximum intercuspation and the distance that the condylar analogues had moved was measured using Feeler gauge.</p><p><strong><em>Results:</em></strong> The mean CR-MI discrepancy in Group I was 0.417±0.137 mm and 0.364±0.123 mm, Group II was 0.528±0.160 mm and 0.512±0.158 mm and Group III was 0.873±0.228 mm and 0.815±0.172 mm at the right and left condyles respectively.</p><p><strong><em>Conclusion:</em></strong> Within the limitations of the study it was concluded that all the sixty subjects had a CR-MI discrepancy in both left and right condyles. The variation in discrepancy between the three age groups was found to be very highly significant.</p>


2021 ◽  
pp. 2049-2056
Author(s):  
Ângela Beatriz de Oliveira Bacchin ◽  
◽  
Géssica Maria Ribeiro da Silva ◽  
Maiara Poersch Seibel ◽  
Alessandra Fernandez da Silva ◽  
...  

The objective of this study was to evaluate the intraocular pressure (IOP) of healthy Criollo horses using a rebound tonometer throughout the day. In addition, assessments were made in horses of different ages. Twenty-seven horses, male and female, were divided into three groups by age: Group I (3-5 years old), Group II (6-8 years old), and Group III: (9-16 years old). Ophthalmic examinations were performed using the Schirmer tear test, slit-lamp biomicroscopy, fluorescein test and indirect ophthalmoscopy. Seven measurements of IOP were assessed on the same day (at 6:00 am, 9:00 am, 12:00 am, 3:00 pm, 6:00 pm, 9:00 pm and 00:00 pm). A t-test was used when there were two groups of comparisons and ANOVA was used to detect differences in IOP between measurement times and between age categories. The average IOP was 28.4 ± 3.7 mmHg for all eyes. The mean IOP for Groups I, II and III were 29.2 ± 3.5, 28.4 ± 4.3 and 27.7 ± 3.2 mmHg, respectively. There was no statistically difference between right and left eyes. There was a significant difference between Group I and Group III (P = 0.008). There were no statistically significant differences between measurements recorded at different times of the day (P = 0.560). The IOP was not influenced by the circadian rhythm, but older horses showed reduced IOP.


2001 ◽  
Vol 25 (1) ◽  
pp. 13-21 ◽  
Author(s):  
Osmar Aparecido Cuoghi ◽  
Francisco Antonio Bertoz ◽  
Marcos Rogerio de Mendonca ◽  
Eduardo Cesar Almada Santos ◽  
An Tien Li

This study aimed to establish radiographical parameters concerning the tipping, the labiolingual positioning and the angulation of the maxillary permanent incisors in the mixed dentition. Three groups of 20 cephalograms and 20 orthopantomographic radiographs taken from children aging from 7 to 12 years old, with normal occlusion were compared. The Group I presented only the eruption of the central permanent incisors, the Group II presented both the central and lateral permanent incisors and the Group III presented central, lateral incisors and permanent canine teeth. The tipping and the labiolingual positioning were measured, respectively, using U1/PP and U1↔AVERT. Mesiodistally, the angles between the teeth axis and the line that touched the lower border of the orbit in the orthopantomographic radiographs were measured. The mean values of tipping, labiolingual positioning and angulation of the central and lateral incisors obtained from Groups I, II and III were respectively 112°, 1.2mm, 90.4° and 91.7°; 112°, 2.6mm, 89.5° and 96.8° and. 114°, 2.7mm, 87.4° and 92.6°. The tipping levels were similar for all groups, the mean values of the labiolingual positioning were significantly different at 5% when Group I was compared to both Groups II and III.And the mean values of the angulation were significantly different 5% for the central incisors between Groups I and III, and at 1% for the lateral incisors between Groups I and II, and, II and III.


2015 ◽  
Vol 09 (02) ◽  
pp. 251-254 ◽  
Author(s):  
Ozge Erken Gungor ◽  
Mevlut Celikoglu ◽  
Burak Kale ◽  
Ahmet Yalcin Gungor ◽  
Zafer Sari

ABSTRACT Objective: The aim of this study was to evaluate the applicability of Greulich and Pyle (GP) method for Southern Turkish population. Materials and Methods: Hand and wrist radiographs of 535 patients (276 females, 259 males aged from 10 to 18 years) selected retrospectively from the archive. Skeletal age (SA) estimation was performed according to GP atlas. The chronological age (CA) and SA were compared using the Paired t-test. Results: The mean difference between the CA and SA ranged from 0.07 to 1.11 years. These differences between the CA and estimated SA were statistically significant in group I (10–10.90 years) (P < 0.001), group II (11–11.90 years) (P < 0.050), group III (12–12.90 years) (P < 0.001), group IV (13–13.90 years) (P < 0.010), and group V (14–14.90 years) (P < 0.001) for females. The mean difference between the CA and SA ranged from −0.41 to −1.79 years for females. These differences between the CA and estimated SA were statistically significant in all age groups. Conclusions: Statistically significant differences were found in the CA and SA assessed by GP method for the Southern Turkish sample. SA was significantly over-predicted in the 10–15 year ages in males and for 10–18 year ages for females. It is appropriate to use GP method in Southern Turkish children; however, a revision is needed for better results and to minimize the mistakes.


2021 ◽  
Vol 12 (5) ◽  
pp. 485-489
Author(s):  
Lovish Sethi ◽  
◽  
Shalini Suri ◽  
Kamal Sarma ◽  
Jasvinder Singh Sasan ◽  
...  

The present study was conducted on the liver of non-descript goats of Jammu region during 2019. The samples were divided into young (below 1 year), adult (2–3 years) and senile (4 years and above) age groups as per the dentition. Six samples from each age group were collected. The capsule showed maximum thickness in adult age group. Maximum thickness of capsule was seen at upper part of main lobe (UPOML) in the liver of young, adult and senile age group. The diameter of central vein showed highest values in adult, followed senile group probably due to increased liver functions in adult. Inter-central vein distance was maximum in adult age group followed by young and senile groups. The mean values of length of hepatocytes ranged between 13.50 to 22.50 µm in all regions of liver of irrespective of age groups. The mean values showed higher values in adult and senile age groups. The nuclear diameter of the hepatocytes ranged between 9.00 to 13.50 µm with mean values varying between 9.75±0.50 to 10.50±0.64 µm in all the three age groups. Number of liver lobules per field was maximum at MPOML in senile group (14.16±0.61) whereas minimum number was observed at CL in young (4.41±0.22). Maximum number of portal triads per field was seen at VPOML in senile group (5.16±0.32) whereas minimum number was observed at VPOML in young group (3.08±0.19). In general, number of liver lobules and portal triads per field was highest in senile group followed by adult and young.


2021 ◽  
Vol 9 (2) ◽  
pp. 3789-3792
Author(s):  
K. Pujitha ◽  
◽  
Arpana Bhide ◽  

Introduction: The change in parasympathetic function is generally known physiological changes in aging of man. The present study was intended to evaluate Postural tachycardial index with age. Aim: To measure basal parasympathetic activity by using Postural tachycardial index in younger and elderly and to observe effect of aging on it. Materials and Methods: The subjects selected are 120 in number with age group 35 to >65 years of both sex and they are categorized into 4 groups based on their age. Group- I: The age of 35-45 years; Group-II: The age of 45- 55 years; Group-III: The age of 55-65 Years; Group-IV: The age of >65 years. PTI was measured by using ECG machine. Results: The examination of parameters body mass index, Heart Rate during resting, immediate standing were estimated for all subjects. The data was analyzed by using descriptive and inferential statistics. Discussion: The findings suggested that the mean of PTI decreases statistically in group III and IV. Conclusion: This study concluded that due to autonomic dysfunction the PTI decreases with increase in age. KEY WORDS: Postural tachycardial index, Body mass index, heart rate, Autonomic dysfunction.


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