scholarly journals Facial analysis in Down's Syndrome patients

2014 ◽  
Vol 62 (1) ◽  
pp. 7-12
Author(s):  
Lorena Nielsen DAMASCENO ◽  
Roberta Tarkany BASTING
Keyword(s):  
Down's Syndrome ◽  
Down’S Syndrome ◽  
Linear Measurements ◽  
Lower Lip ◽  
Facial Analysis ◽  
Mean Values ◽  
A Value ◽  
Normal Individuals ◽  
Lateral Cephalograms ◽  
The Mean

OBJECTIVE: The aim of this study was to analyze the facial features of patients with Down syndrome, such as projection of the nose, projection and length of upper and lower lips, projection of soft pogonion and to compare them with the standardized analysis by Ayala and Gutierrez1. METHODS: The sample consisted of 20 patients with Down's Syndrome, between 8 and 13 years-old of both genders. The analysis was performed by one orthodontist, using lateral cephalograms and photography in natural head position. For statistical analysis, the mean values of linear measurements within a range of 95% were used. RESULTS: The mean (± standard deviation) showed a nasal projection of 10.1 mm (2.4), the upper and lower lip in front of the vertical reference line, subnasal and soft pogonion with a retrusion of 4.95 mm (4.6). The length of the upper lip showed a value of 20.2 mm (2.4) and the length of the lower lip of 42.5 mm (2.9). CONCLUSION: The facial analysis of patients with Down's Syndrome, compared with Ayala and Gutierrez1, showed smaller nasal projection, greater projection of the upper and lower lip, but lengths, and retrusion of the soft pogonion, similar to those of normal individuals

Normal levels of vitamin A in tissues of the Syrian hamster (Mesocricetus auratus) determined colorimetrically

1988 ◽  
Vol 22 (2) ◽  
pp. 117-121 ◽  
Author(s):  
M. E. Robinson ◽  
A. M. Verrinder Gibbins ◽  
M. H. Hardy
Keyword(s):  
Vitamin A ◽  
Syrian Hamster ◽  
Cheek Pouch ◽  
Standard Diet ◽  
Male And Female ◽  
Mean Values ◽  
A Value ◽  
Significant Difference ◽  
Wet Weight ◽  
The Mean

Vitamin A levels in tissues of 20 normal adult hamsters on a standard diet were measured colorimetrically. No significant difference between male and female animals was found for any of the tissues sampled. The mean vitamin A value for blood plasma in 20 animals was 53·4 μg/dl. Mean values for liver, kidneys, flank skin and cheek pouch were 813, 1·29, 1·84 and 1·31 mg/g wet weight, respectively. The vitamin assay was less suitable for small organs such as trachea.

A Cephalometric Evaluation of Lower Lip in Patients with Unilateral Cleft Lip and Palate

2004 ◽  
Vol 41 (5) ◽  
pp. 485-489 ◽  
Author(s):  
T. Ufuk Toygar ◽  
M. Okan Akçam ◽  
Ayça Arman
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Normal Subjects ◽  
Middle Part ◽  
Class I ◽  
Control Group ◽  
Upper Lip ◽  
Lower Lip ◽  
Normal Individuals ◽  
Lateral Cephalograms

Objective The aim of this study was to evaluate cephalometrically the lower lip position and area of patients with unilateral cleft lip and palate (UCLP) comparatively with Class I skeletodental normal subjects. Patients Lateral cephalometric and hand-wrist radiographs obtained from 24 patients with UCLP (mean age 12.86 years), along with 20 normal individuals (mean age 12.33 years) used as a control group, were examined. Design In addition to standard cephalometric dentofacial variables, lower lip area (superior, middle, inferior) was also measured using a digital planimeter on the lateral cephalograms. Results The superior and middle part of the lower lip areas were significantly smaller (p < .05) in the UCLP group, compared to the control group. The inferior and total lower lip areas of patients with UCLP were found to be significantly smaller than controls. The labiomental angle was also smaller (38.79 degrees). Conclusions The results suggest that the lower lip of patients with UCLP is smaller, retruded, and curved, with a deep labiomental sulcus, compared with normal individuals during puberty. Therefore, practitioners should focus not only on the upper lip of patients with UCLP but also should consider the lower lip as it was found distinct from normal individuals during puberty.

scholarly journals Comparison of White and Chinese perception of esthetic Chinese lip position

2013 ◽  
Vol 84 (2) ◽  
pp. 246-253 ◽  
Author(s):  
Hui Theng Chong ◽  
Kim Wei Thea ◽  
Joseph Descallar ◽  
Yong Chen ◽  
Oyku Dalci ◽  
...  
Keyword(s):  
Adult Male ◽  
Mean Value ◽  
Class I ◽  
Lower Lip ◽  
Male And Female ◽  
Mean Values ◽  
Skeletal Class ◽  
Chinese Adult ◽  
The Mean ◽  
Additional Image

ABSTRACT Objective: To compare the esthetic preference of White and Chinese judges with regard to Chinese lip position. Materials and Methods: The profile images of a dental and skeletal Class I Chinese adult male and female were digitally adjusted to Chinese mean values. The lip profile was adjusted with the upper and lower lip at the mean distance from the Ricketts' E-line. These images were used as baseline images and were further digitally manipulated to generate six additional images with the upper and lower lip such that they lay 0.5, 1.0, and 2.0 standard deviations (SDs) in front of or behind the E-line. An additional image was modified based on a White mean value. The images were viewed and ranked by 251 White and Chinese judges (dentists and laypersons) in Australia and China. Results: Significantly more Chinese judges ranked the retrusive profiles higher than the White judges. The White judges also ranked the profile image adjusted to −0.5 SD as the most esthetic for both the female and male, while the Chinese judges ranked the −1.0 SD profile as the most esthetic. Conclusions: The ethnicity of the judges is a significant factor influencing the perception of esthetic lip position. The Chinese judges prefer a more retrusive profile and are more likely to rate a protrusive profile as unacceptable, compared with the White judges.

scholarly journals Cephalometric Norms for Orthognathic Surgery in Kerala Population

2017 ◽  
Vol 07 (01) ◽  
pp. 045-051
Author(s):  
Murali Patla ◽  
Sonika Achalli ◽  
K. Saidath ◽  
Crystal Runa Soans ◽  
U.S. Krishna Nayak
Keyword(s):  
Orthognathic Surgery ◽  
Diagnosis And Treatment ◽  
Surgical Patient ◽  
White Americans ◽  
Linear Measurements ◽  
Lower Incisor ◽  
Mean Values ◽  
The Mean ◽  
Mandibular Protrusion ◽  
Tissue Defects

AbstractBackground and objectives: The successful treatment of orthognathic surgical patient is dependent on careful diagnosis. The first step in the diagnosis of the patient for orthognathic surgery is to determine the nature of the skeletal, dental and soft tissue defects. Cephalometrics for orthognathic surgery (COGS) analysis by Burstone and colleagues is especially adapted for the diagnosis and treatment planning of orthognathic surgery cases. Burstone and colleagues' COGS analysis are based on Caucasian whites; they may not be applicable as a reference for the diagnosis and treatment of Kerala population patients. Therefore it has become important to determine the cephalometric parameters for this ethnic group. Methodology: Cephalometric radiographs of 50 Keralite adults (25 Males and 25 Females) were analysed who met criteria of the study. The Mean values of various skeletal, dental, angular and linear measurements of Keralites were compared with the White Americans values, originally obtained by Burstone. Results: Statistically significant differences were found in the Keralite samples, who had a greater Anterior and Posterior Cranial base length, Mandibular protrusion, Lower anterior facial heights, Anterior and Posterior Dental heights, Proclined Upper and Lower incisor with less Prominent Chin in comparison to Caucasian. Interpretation and conclusion: This is indicative of disparity between cephalometric norms of Caucasians and Keralites. However conclusions can't be drawn from a single study, hence further studies to establish the cephalometric norms for different ethnic groups across the country may be advisable.

scholarly journals Accuracy of printed models obtained from intraoral scanning

2021 ◽  
Author(s):  
Fernando Igai ◽  
Washington Steagall Junior ◽  
Pedro Tortamano Neto
Keyword(s):  
Mean Value ◽  
Experimental Models ◽  
T Test ◽  
Physical Models ◽  
Linear Measurements ◽  
Mean Values ◽  
Intraoral Scanning ◽  
Linear Distance ◽  
The Mean ◽  
Master Model

Objectives: To compare the accuracy of two methods for the manufacturing of physical models: I) intraoral scanning and resin-printed models; and II) addition silicone impression and gypsum model. Materials and methods: A dental manikin was used as the master model and compared with five gypsum models (g1) and five resin printed models (g2) by analyzing linear measurements at four sites (M1, M2, M3, and M4) using an image measuring instrument. The mean values of the experimental models were compared to those of the master model using one-sample t-test. The samples of each group at the same site were compared with an independent t-test. For all tests, a significance level of 5% (0.05) was considered. Results: The confidence intervals from M1, M2, and M4 sites for both gypsum and resin models presented statistically lower linear distance when compared to the reference values. At m3, the mean value for the gypsum models was not statistically different from the reference mean value (p > 0.05); however, resin-printed models presented a statistically different mean value (p < 0.05), as well as lower values of linear distance. Conclusions: When compared to gypsum models, resin- printed models differed greatly from the master model, indicating the need for standardizing the printing protocol, for its variables may influence printed models accuracy.

scholarly journals Custom Focal Trough in Cone-Beam Computed Tomography Reformatted Panoramic Versus Digital Panoramic for Mental Foramen Position to Aid Implant Planning

2020 ◽  
Vol 10 ◽  
pp. 34
Author(s):  
Khaled Beshtawi ◽  
Emad Qirresh ◽  
Mohamed Parker ◽  
Shoayeb Shaik
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Mental Foramen ◽  
Reference Points ◽  
Cone Beam ◽  
Vertical Position ◽  
Linear Measurements ◽  
Mean Values ◽  
The Mean ◽  
High Level

Objectives: To compare the linear measurements from digital panoramic (DP) radiographs and cone-beam computed tomography (CBCT) volumes for the localization of the mental foramen (MF). Material and Methods: Thirty-one patients with panoramic and CBCT radiographs depicted on the same machine were analyzed. The vertical and horizontal positions of the MF were compared by the differences in distances measured from reference points to the boundaries (tangents) of the MF in digital panoramic (DP) and CBCT reformatted panoramic (CRP) views. The vertical position of MF was also analyzed on CBCT oblique coronal views (CORO) and compared with its corresponding distances on DP and CRP views. Results: Statistically significant differences (P < 0.05) were found in all compared measurements between CRP and DP views. In addition, the vertical distance (Y1) compared between DP, CRP, and CORO views also showed a statistically significant measurement discrepancy in the mean distance (P < 0.000) with the highest mean difference of 1.59 mm (P < 0.05) was attained from Y1 (DP-CORO). Inter- and intra-examiner analysis indicated a high level of agreement for all measurements. Conclusion: The mean values of discrepancies in measurements between DP and CRP views for horizontal and vertical linear measurements were clinically tolerable. Nevertheless, significant differences in the vertical MF position were detected between the panoramic views (DP, CRP) and the coronal views (CORO). This implies that the use of coronal view measurements during implant planning might reduce the risk of neurovascular injuries.

scholarly journals A novel method using 3D CBCT to assess anterior malar prominence among native Bangalore population- A descriptive study

2021 ◽  
Vol 7 (3) ◽  
pp. 223-228
Author(s):  
Sanda Aamani ◽  
Hemanth M ◽  
Sharmada B K ◽  
Karthik J Kabbur ◽  
Goutham Kalladka
Keyword(s):  
Descriptive Study ◽  
T Test ◽  
Linear Measurements ◽  
Mean Values ◽  
Significant Difference ◽  
The Face ◽  
Novel Method ◽  
Males And Females ◽  
The Mean ◽  
Paired T Test

There is a lack of accurate three-dimensional studies to locate malar prominence for specified population, this study aims to locate the malar prominence using stable landmarks using CBCT. To derive a novel method to accurately locate the malar prominence and to assess and compare the malar prominence between males and females among Bangalore population using 3D CBCT study. All CBCT scans of study subjects belong to Bangalore population were collected from the pre-existing data available in Radiology imaging Solutions (CBCT centre), Bangalore during the period of September 10th to October 10th 2020. This is a descriptive study. A total of 42 subjects including 21 Males and 21 females were assessed using full skull CBCT scans which were converted to DICOM format and reconstructed into 3D images using NEMOCEPH 3D software. Landmarks used to locate the malar prominence were Fzs, Z, Zm and Ans. The intersection of these landmarks is considered to be as constructed maxillozygion(My). For the accuracy of the constructed Maxillozygion point (My), the distance between the actual Maxillozygion (Mzy) and constructed Maxillozygion (My) is measured and calculated between left and right halves of males and females. Three Orthogonal planes constructed were Midsagittal, Axial and Coronal Planes and the linear measurements with reference to all three reference planes in both the groups are measured. Student paired t- Test, Independent Student t Test, Mann Whitney Test. The mean distance from Mzy and my between right and left half of the face was compared using student paired t- Test. There is no significant difference (p=0.35).The mean values of the constructed anatomical landmark (maxillozygion) coordinated to three orthogonal planes between right and left sides of the face is compared using student paired T test and for both the genders (males and females) was compared using Independent Student t Test, and it is significantly higher in males as compared to females and it is statistically significant at (p=0.01). The location of malar prominence using CBCT by a novel method for Bangalore population is found which can be helpful in diagnosis and treatment planning for malar augmentation, camouflage treatment in subjects with midface deficiencies.

scholarly journals Satellite Derived Aerosol Optical Depth Climatology over Tropical Coastal Station Machilipatnam, India

2015 ◽  
Vol 50 ◽  
pp. 188-198
Author(s):  
A.S. Madhusudanacharyulu ◽  
K. Samatha ◽  
K. Sailesh Kumar ◽  
K. Jagadeesh ◽  
Suneetha Rani
Keyword(s):  
Monsoon Season ◽  
Ozone Monitoring Instrument ◽  
Coastal Station ◽  
Mean Values ◽  
Frequency Distributions ◽  
A Value ◽  
Circulation Patterns ◽  
The Mean ◽  
Annual Distribution ◽  
Maximum Occurrence

Climatological aerosol optical depths (AOD) over Tropical coastal city Machilipatnam, India have been examined to bring out the temporal heterogeneity in columnar aerosol characteristics. AOD values at 388 nm derived from the Ozone Monitoring Instrument (OMI) sensor EOS-AURA satellite, for the period of 2005–2013 have been analyzed for the purpose. AOD trends exhibited seasonal annual mean variations. Frequency distributions of the AOD values are examined to infer the monthly mean values. Monthly and seasonal variations of AOD are investigated in the light of regional synoptic meteorology. AODs>0.6 showed maximum occurrence in monsoon months. The mean AOD values increased towards summer reaching ~0.69 ± 0.34 and attained peak in monsoon season with a value of ~0.74 ± 0.33 and decreased during post-monsoon reaching as low as ~0.73 ± 0.3. Positive slope ~0.016 observed for inter annual distribution trend line. Factors like synoptic scale circulation patterns which are causing modulations of AOD apart from local sources were discussed.

scholarly journals THE ANALYSIS OF STUDENT’S WRITTEN COMMUNICATION SKILLS IN SCIENCE LEARNING BASED ON GENDER IN THE MIDDLE SCHOOL IN SOUTH TANGERANG REGION

EDUSAINS ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 249-254
Author(s):  
Hariyanto Hariyanto ◽  
S Yamtinah ◽  
Sukarmin Sukarmin ◽  
Sulistyo Saputro ◽  
L Mahardiani
Keyword(s):  
Communication Skills ◽  
Research Method ◽  
Quantitative Research ◽  
Science Learning ◽  
Female Students ◽  
Average Score ◽  
Written Communication ◽  
Mean Values ◽  
A Value ◽  
The Mean

ANALISIS KETERAMPILAN KOMUNIKASI TERTULIS SISWA DALAM PEMBELAJARAN ILMU PENGETAHUAN ALAM (IPA) BERDASARKAN GENDER DI SEKOLAH MENENGAH DI WILAYAH TANGERANG SELATAN AbstrakKeterampilan komunikasi tulisan merupakan keterampilan yang sangat penting didalam era globalisasi dan termasuk kedalam salah satu keterampilan belajar abad 21 yang harus diberdayakan dalam pembelajaran. Penelitian ini bertujuan untuk komunikasi tulisan peserta didik secara real di sekolah berdasarkan gender. Subjek dalam penelitian ini berjumlah 186 orang dengan rincian 88 orang laki-laki dan 98 orang perempuan. Metode yang digunakan dalam penelitian ini adalah metode penelitian deskriptif kuatitatif. Instrumen penelitian yang digunakan berupa lembar observasi dan pedoman wawancara. Data yang didapatkan kemudian dianalisis secara kuantitatif sehingga didapatkan nilai keterampilan komunikasi peserta didik. Hasil penelitian mengungkapkan tidak terdapat perbedaan yang terlalu besar antara nilai keterampilan komunikasi tulisan peserta didik laki-laki dan perempuan. Masing-masing gender(laki-laki dan perempuan) mendapatkan rata-rata nilai 1,44 dan 1,45, namun keduanya masih masuk kedalam kategori nilai huruf D+. Nilai keterampilan komunikasi tulisan peserta didik masih relative rendah dengan nilai rata-rata 1,44 (D+). Hasil ini masih jauh dibawah standar pemerintah dalam Permendikbud No. 104 tahun 2014 yaitu 2,67 (B-) untuk aspek keterampilan. Hal tersebut mengindikasikan perlu ditingkatkannya pelatihan keterampilan komunikasi didalam pembelajaran.AbstractWritten communication skills are essential for the globalization era, and it is one of the 21st-century skills that must be empowered in learning. This study aimed to determine the profile of learners’ written communication skills in real terms by gender. The subjects in this study were 186 students, consisted of 88 male and 98 female students in detail. The method used in this research was a descriptive-quantitative research method. The research instrument used was an observation sheet and the form of an interview. The data obtained were then analyzed quantitatively so that the value of the students’ communication skills was appropriately obtained. The results of the study had found that there were not too differences in the mean values of male and female written communication skills. Each of them got an average score of 1.44 and 1.45, but both are still in the D+ category of value. The value of the students’ written communication skills was still relatively low, with a value of 1.44, interpreted as a D+ category. The results were far below government standards as regulated in the Minister of Education and Culture No. 104 of 2014, which is equal to 2.67 (B-). Further study is needed to improve training in students’ written communication skills in learning. 

scholarly journals Quality characteristics of the carcass of Beni-Guil sheep, a Protected Geographical Indication certified product of Eastern Morocco: Preliminary study

2020 ◽  
Vol 73 (1) ◽  
pp. 21-26 ◽  
Author(s):  
Kamal Belhaj ◽  
Farid Mansouri ◽  
Aziz Tikent ◽  
Abdellah Ouchatbi ◽  
Mohamed Boukharta ◽  
...  
Keyword(s):  
Linear Measurements ◽  
Mean Values ◽  
Ewe Lambs ◽  
Red Color ◽  
The Mean ◽  
Preliminary Study ◽  
Eastern Morocco ◽  
White Fat ◽  
First Time ◽  
Compactness Index

The objective of the study was to evaluate, for the first time, the qualitative, objective and subjective characteristics of the carcass and meat of the Beni-Guil sheep breed, originating in Eastern Morocco. The study was conducted with 105 ewes and ewe lambs with a mean age of 21.5 months (8–36 months), and a mean weight of 32.55 kg. pH measurements were taken one hour and 24 hours after slaughter. The mean values obtained were 6.76 and 5.78, respectively. The mean hot (HCW) and cold (CCW) carcass weights and corresponding yields were 15.82 kg (48.6%) and 15.52 kg (47.7%), respectively. Shrinkage loss was 1.9%. Linear measurements showed that the Beni-Guil had a mean carcass length (K) and width (G) of 63.7 and 17.3 cm, respectively, with a carcass compactness index 1 (G/K) and 2 (CCW/K) of 0.27 and 243.60 g/cm, respectively. Finally, according to the EUROP sheep carcass classification grid, the carcasses examined showed conformations between fairly good (O) and good (R), a bright red color, a firm white fat cover, and a fatness score of 3.42. The results highlighted the characteristics of the Beni-Guil ewe carcass, which are sought by professionals and consumers.

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