Friday, October 11, 2013

What Does Wheel Drive in Cars?

lThe wheel receives torque from a powertrain which makes the car move on the road. The powered wheels are called as wheel drive. There are basically two wheel drive (2WD), four wheel drive (4WD) and all wheel drive (AWD) cars available at present. In this article, we discuss about them briefly.

Two wheel drive
Two wheel drive of the car will have the torque to move the car. In the two wheel drive there are of two types. They are:
  • Front wheel drive: Front two wheels are connected with torque. They are easier to steer, smaller and better traction in mud and snow. The robust system is less stronger than the rear wheel.
  • Rear wheel drive: Back two wheels are connected with torque. The robust system is stronger than the front wheel system. They are tend to be larger. Service to the individual components is easy. With the addition of the locking differential system drive wheel traction can improve. These can accelerate more quickly, offer a smoother drive and stop more easily.
Advantages of two wheel drive
  • The maintenance costs are lower than the four wheel drive cars because of fewer powertrain parts.
  • The power usage is lower so the fuel consumption is lower.
  • Purchase cost is less than the four wheel drive.
  • The curb weight is less and can carry more payload.
Four wheel drive and all wheel drive
Driver controlled part time four wheel drive is called as four wheel drive (4WD) within in the truck industry. If it is full time and automatically controlled system it is called as all wheel drive (AWD). It has the ability to control slippery or off road conditions.

Wheel drive determine steps
  • Locate the engine in your car. Some cars have engine in front and some cars in rear. So check where is your car engine and locate it.
  • Check the engine is mounted sideways or front to back. If the engine is mounted sideways or transverse with one side facing belts, it is most likely a front wheel car. If the engine is mounted front to back or longitudinally and belts facing to the front grille, it is likely a rear wheel car. So check how engine is mounted.
In all the wheel drives when the steering is used only front wheels turn. When stuck in snow or mud front wheel and four wheel drive can regain the traction by turning the steering slightly. The rear wheel will provide more traction.

Thursday, October 10, 2013

Get to Know Different Types of Dental Implants

Dental Implants London
Dental implants are meant to replace missing teeth. They are likely to improve the user's appearance and speech. Many Implants are made of titanium, as titanium has ability to integrate with jaw bone effectively. In this article we will discuss three types of dental implants.

Different types of dental implants are:

1. Subperiosteal dental implant
This type of dental implant is used in patients who have little space in bone. These implants are placed not inside the bone but are on top of the bone. There are two sorts of surgeries involved in this process.

During the first surgery, an incision is made in the jawbone for the implant to fix in. And, the follow-up surgery involves opening of jaw bone again, and a metal frame is fitted on it. After the healing of gums, implant is then attached to the jaw, following taking impression of teeth for new crown.

Dental Implants London
2. Transosteal dental implants
This type of dental implants are rarely used by dentist today. These are u-shaped, and in this process, the entire jawline is drilled. It also requires opening of the skin under the chin.
This implant has screws that are inserted in the jaw bone. The screws make a way through the entire jaw bone and appear under the chin. Then, a pressure plate and nut are attached to keep them secure.

3. Endosseous dental implant
This type of dental implant is expensive, and are frequently used by doctors. An endosseous dental implant looks like a screw with smooth or hard surface. The procedure for this implant also involves two surgeries.

It is done under local or general anesthesia. An incision is made where the implant has to be placed. The jaw bone is drilled to make space. Then, the implant is screwed either manually or with the help of the implant drill. The second component of the implant is screwed in to the implant, and will be there during the healing period. One or two stitches are done to close the gums, after which they are left for healing.

The following surgery involves an incision to reopen the gums to make an extension to the implant so that the new crown sits on it. After this surgery, healing takes time. When your gums are totally healed your surgeon will call you for taking impression of teeth, after the placement of dental crown.

Conclusion
The type of the dental implant is suggested by the surgeon depending on your condition of gums and your health. Discuss with them the pros and cons before making you decide to go for dental implant procedure.