Text messaging, How to buy a Digital Camera
Miniscrews for upper incisor intrusion
EJO March 2009
The aim of this study was to investigate if true incisor intrusion can be achieved using miniscrews. Eleven patients (three males and eight females; mean age: 19.8 ± 4.8 years) with normal vertical dimension showing a pre-treatment deep bite of 5.9 ± 0.9 mm and a ‘gummy’ smile were enrolled in the study. After levelling of the maxillary central and lateral incisors with a segmental arch, an intrusive force of 80 g using closed coil springs was applied from two miniscrews placed between the roots of the lateral and canine teeth. The amount of incisor intrusion was evaluated on lateral cephalometric headfilms taken at the end of levelling (T1) and at the end of intrusion (T2). Statistical analysis of the data was performed using a paired t and Wilcoxon signed rank tests. A significance level of P <>
The mean upper incisor intrusion was 1.92 mm and the mean overbite decrease 2.25 ± 1.73 mm in 4.55 months. Upper incisor angulation resulted in a 1.81 ± 3.84 degree change in U1-PP angle and a 1.22 ± 3.64 degree change in U1-NA angle. However, these were not statistically significant (P > 0.05).
True intrusion can be achieved by application of intrusive forces close to the centre of resistance using miniscrews.
Text messaging harmful for thumb
A new South African study finds that the increase in the trend of writing text messages on cell phones can be disastrous for the thumb. Conducted by Safura Karim, a Grade 11 schoolgirl from Durban, the study has been published in the latest issue of the South African Medical Journal. She interviewed 320 teens from two city high schools and out of these 318 reported that they used MXit or similar text message forums on their mobile sets. The important finding was that out of the total students, 125 kids who text messaged a lot complained of blisters on their finger tips and thumb. Most also suffered repetitive strain injury and pain in their hands and back. "The thumb is the least dextrous of all our fingers and is not suited to the repetitive movements required to type on a cellular phone keypad," says Safura Karim who also conducted a study on PlayStation use five years ago. But it can be noted that now with advancement in technology new cellphones are out in the market which have keys like that in a keyboard and that can be operated with a stick. This can bring respite to the fingers. The study has come out at a good time as most of the teenagers use mobile phones these days and almost everybody uses the ‘sms’ or the short messaging service. And so the finger problem is being faced by maximum.
The More Oral Bacteria, The Higher The Risk Of Heart Attack, UB Study Shows
A study conducted at the University at Buffalo, where the gum disease/heart disease connection was uncovered, now has shown that two oral pathogens in the mouth were associated with an increased risk of having a heart attack, but that the total number of germs, regardless of type, was more important to heart health.
Results of the study are being presented during a poster session at the International Association of Dental Research (IADR) General Session being held in Miami, Fla., from April 1-4.
Oelisoa M. Andriankaja, D.D.S., Ph.D., conducted the study in UB's Department of Oral Biology in the School of Dental Medicine, as a postdoctoral researcher. She currently is an adjunct professor at the University of Puerto Rico's School of Dental Medicine.
"The message here," said Andriankaja, "is that even though some specific periodontal pathogens have been found to be associated with an increased risk of coronary heart disease, the total bacterial pathogenic burden is more important than the type of bacteria.
"In other words, the total number of 'bugs' is more important than one single organism," she said. More HERE
New Needle Design to cut Risk
Each year, hundreds of thousands of people suffer medical complications from hypodermic needles that penetrate too far under their skin. A new device developed by MIT engineers and colleagues aims to prevent this from happening by keeping needles on target.
The device, which is purely mechanical, is based on concepts borrowed from the oil industry. It involves a hollow S-shaped needle containing a filament that acts as a guide wire. When a physician pushes the device against a tissue, she is actually applying force only to the filament, not the needle itself, thanks to a special clutch. Full Report
How to Choose a Digital Camera- Megapixel Myth
The truth is, though, that 6MP is enough to make a very nice 8 x 10" print—in fact, I've seen very nice, though soft, 8 x 10" prints from early 3MP DSLRs. More pixels can mean larger prints or more room for cropping. But who's making larger prints, other than professionals? And with compact cameras offering up to 24x zoom ranges, exactly how much cropping would someone need?
"I personally believed, before starting the E-System, that 12 was enough," Watanabe said. "We interviewed many professional photographers, people in studios, about how many they needed in the future. Before we started the system, we had a rough idea we'd be at a plateau at 12 megapixels." More HERE
What was Hot at IDS Cologne, the world's largest Dental Trade Fair
Cologne IDS is the largest dental Trade fair in the world held every two years. This year it was from 24-28 March, 2009. There were 1750 booths, it is virtually impossible to see everything, shear size of it is humiliating and the gimmicks companies play to attract crowds to their booths. This time it was flooded with Implants, 3 D Cad Cam technology. They are trying to drive these two product lines hard. There were also lots of interesting products, wait and shortly we will bring you a report.
EJO March 2009
The aim of this study was to investigate if true incisor intrusion can be achieved using miniscrews. Eleven patients (three males and eight females; mean age: 19.8 ± 4.8 years) with normal vertical dimension showing a pre-treatment deep bite of 5.9 ± 0.9 mm and a ‘gummy’ smile were enrolled in the study. After levelling of the maxillary central and lateral incisors with a segmental arch, an intrusive force of 80 g using closed coil springs was applied from two miniscrews placed between the roots of the lateral and canine teeth. The amount of incisor intrusion was evaluated on lateral cephalometric headfilms taken at the end of levelling (T1) and at the end of intrusion (T2). Statistical analysis of the data was performed using a paired t and Wilcoxon signed rank tests. A significance level of P <>
The mean upper incisor intrusion was 1.92 mm and the mean overbite decrease 2.25 ± 1.73 mm in 4.55 months. Upper incisor angulation resulted in a 1.81 ± 3.84 degree change in U1-PP angle and a 1.22 ± 3.64 degree change in U1-NA angle. However, these were not statistically significant (P > 0.05).
True intrusion can be achieved by application of intrusive forces close to the centre of resistance using miniscrews.
Text messaging harmful for thumb
A new South African study finds that the increase in the trend of writing text messages on cell phones can be disastrous for the thumb. Conducted by Safura Karim, a Grade 11 schoolgirl from Durban, the study has been published in the latest issue of the South African Medical Journal. She interviewed 320 teens from two city high schools and out of these 318 reported that they used MXit or similar text message forums on their mobile sets. The important finding was that out of the total students, 125 kids who text messaged a lot complained of blisters on their finger tips and thumb. Most also suffered repetitive strain injury and pain in their hands and back. "The thumb is the least dextrous of all our fingers and is not suited to the repetitive movements required to type on a cellular phone keypad," says Safura Karim who also conducted a study on PlayStation use five years ago. But it can be noted that now with advancement in technology new cellphones are out in the market which have keys like that in a keyboard and that can be operated with a stick. This can bring respite to the fingers. The study has come out at a good time as most of the teenagers use mobile phones these days and almost everybody uses the ‘sms’ or the short messaging service. And so the finger problem is being faced by maximum.
The More Oral Bacteria, The Higher The Risk Of Heart Attack, UB Study Shows
A study conducted at the University at Buffalo, where the gum disease/heart disease connection was uncovered, now has shown that two oral pathogens in the mouth were associated with an increased risk of having a heart attack, but that the total number of germs, regardless of type, was more important to heart health.
Results of the study are being presented during a poster session at the International Association of Dental Research (IADR) General Session being held in Miami, Fla., from April 1-4.
Oelisoa M. Andriankaja, D.D.S., Ph.D., conducted the study in UB's Department of Oral Biology in the School of Dental Medicine, as a postdoctoral researcher. She currently is an adjunct professor at the University of Puerto Rico's School of Dental Medicine.
"The message here," said Andriankaja, "is that even though some specific periodontal pathogens have been found to be associated with an increased risk of coronary heart disease, the total bacterial pathogenic burden is more important than the type of bacteria.
"In other words, the total number of 'bugs' is more important than one single organism," she said. More HERE
New Needle Design to cut Risk
Each year, hundreds of thousands of people suffer medical complications from hypodermic needles that penetrate too far under their skin. A new device developed by MIT engineers and colleagues aims to prevent this from happening by keeping needles on target.
The device, which is purely mechanical, is based on concepts borrowed from the oil industry. It involves a hollow S-shaped needle containing a filament that acts as a guide wire. When a physician pushes the device against a tissue, she is actually applying force only to the filament, not the needle itself, thanks to a special clutch. Full Report
How to Choose a Digital Camera- Megapixel Myth
The truth is, though, that 6MP is enough to make a very nice 8 x 10" print—in fact, I've seen very nice, though soft, 8 x 10" prints from early 3MP DSLRs. More pixels can mean larger prints or more room for cropping. But who's making larger prints, other than professionals? And with compact cameras offering up to 24x zoom ranges, exactly how much cropping would someone need?
"I personally believed, before starting the E-System, that 12 was enough," Watanabe said. "We interviewed many professional photographers, people in studios, about how many they needed in the future. Before we started the system, we had a rough idea we'd be at a plateau at 12 megapixels." More HERE
What was Hot at IDS Cologne, the world's largest Dental Trade Fair
Cologne IDS is the largest dental Trade fair in the world held every two years. This year it was from 24-28 March, 2009. There were 1750 booths, it is virtually impossible to see everything, shear size of it is humiliating and the gimmicks companies play to attract crowds to their booths. This time it was flooded with Implants, 3 D Cad Cam technology. They are trying to drive these two product lines hard. There were also lots of interesting products, wait and shortly we will bring you a report.
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