Individuals with dental crowding are the most frequent patients in
the orthodontic clinic. Therefore, it is useful to know the
contributing factors of dental crowding for planning of orthodontic
treatment and achieving stability and retention.
Th
e aim the study. Was studying effect of teeth sizes and linear
and angular dental Measurements on mandibular anterior
crowding in the early stage of mixed dentition.
This study was carried out aiming to investigate the accuracy of
measurements , differences in linear and angular measurements of
the craniofacial complex using both the two and three dimensional
method of measuring in patients with different kind
s of
malocclusion ; and also to compare each kind of malocclusion to
the others. The sample of the study consisted of 40 patients ,
divided into three groups – a group for each skeletal malocclusion
, Cone Bean Computed Tomography (CBCT) was performed for
each patient , then two dimensional radiographs were derived from
the CBCT ; after performing the measuring , collecting the results
and analyzing them statistically.
The aim of the study was to evaluate The relation between frontonasal complex and cases with class I, II, III Malooclousion. Material and methods: True lateral cephalometric radiograph of the sample that comprises 61 patienta of 34 females and 27 ma
les aged 18-25 years.The data were analyzed using independent sample Student t-test, Anova analysis and Pearson correlation analysis. The results showed that significant differences between the value of front complsx and frontonasal angle and different malooclusion classes, but there were no significant differences between male and female according to frontal convex and frontonasal angle, However, the differences between classes according to frontal convex and frontonasal angle were found in females.
The various types of radial distortions generated by digital cameras are presented in this paper, like Barrel Distortions and Pincushion Distortion.
Image processing techniques are used to correct the barrel distortion generated by wide-angle lenses
of digital cameras. A model for barrel distortions is founded. Moreover, an algorithm for correcting this distortion is developed. This algorithm depends on finding the right parameters of the model. The grid pattern is used to detect pixels that caused the distortion and reallocate these pixels back into their original locations, making the corrected photo as close as possible to the original.
شهد أواخر القرن الماضي نقلة نوعية في منظور الجمال واعتباره جزءاً أساسياً من تكوين الشخصية وتركز الاهتمام على جمال الابتسامة بفضل الدور الكبير الذي قامت به وسائل الاعلام المختلفة في تغيير مقاييس الجمال لدى العامة
The aim of the study was to evaluate The relation between morphology of lips and incisors and mandibular rotation in adult class Ι individuals and to explore the gender dimorphism for these measurments. Material and methods True lateral cephalometri
c radiograph of the sample that comprises 32 females and 30 males aged 18-25 years and they possess class I skeletally and dentally. The data were analyzed using independent sample t test and Pearson correlation analysis. Results: In males interlabial angle negatively correlated with U1-NS and positively with U1-L1 Nasolabial angle and mentolabial angle positively correlated with (NS-GoMe, FH-GoMe, B, Bijork angles) Zangle and ULT/ULH negatively correlated with (NS-GoMe, FH-GoMe, B, Bijork angles) in Females lower lip inclination positively correlated with (NS-GoMe, FH-GoMe, B, Bijork angles).
The aim of this clinical study was to investigate the intraocular pressure (IOP) reduction after selective laser trabeculoplasty (SLT) in patients with primary open-angle glaucoma (POAG). The research has been done in Alassad Hospital, Tishreen unive
rsity, Lattakia, from Feb 2009 to Feb 2011. Fifty eyes with uncontrolled POAG were treated with a frequency doubled, Q-switched Nd:YAG laser (532 nm).The pattern of treatment was applying approximately 50 burns to 180 degrees of the trabecular meshwork at energy levels ranging from 0.40– 0.92 mJ per pulse. After SLT eyes were maintained with the identical hypotensive medical therapy as that before treatment. IOP was measured before treatment, 1 and 7 days after treatment and 1, 3, 6 and 12 months after treatment. The mean pretreatment IOP was 22.48 (SD 1.84) mmHg. At the end of 1 month follow-up period the mean reduction of IOP was 4.86 mmHg (21.6%); after 3 months the mean reduction was 5.66 mmHg (25.2%); after 6 months the mean reduction of IOP was 5.06 mmHg (22.5%); at the end of 12 months follow-up period the mean reduction was 4.92 mmHg (21.9%). It can be concluded that SLT presents a new and effective method of IOP reduction in the treatment of POAG.
This research depends on the relationship between the spectral reflectance and the nature of target in
order to track it and draw boundaries and area of its spread, and even the proportion of its presence with
other objects in the area to be measur
ed. The greater the number of spectral channels used the greater the
amount of extracted information from the studied target. The use of hyperspectral images requires
complex processing techniques which differ in the means and methodology from those using multispectral
images.
