To replace the traditional dentures, all-on-4 can be considered a good alternative.
Four implants are screwed on the jaw bone, with fixed prosthetic teeth attached to them to replace a full arch of teeth –whether upper or lower arch of the teeth.
Crowns (acrylic or porcelain) are attached to implants once they are placed properly. Unlike the traditional dentures, All-on-4 cannot be removed from the mouth.
These types of implants have many indications:
· Replacing teeth with multiple root canal fails
· Restoring teeth with infection and continued decay
· People with sufficient and strong jaw bone
· Replacing hopeless teeth
All-on-4 implants aim to replace missing teeth with fixed teeth placed over them, to prevent any problems that can happen with the removable dentures. This procedure can save time and money for both dentist and the patient.
$7,000 to $19,000
· As they are fixed to the bone, All-on-4 implants end the problem of loosening removable dentures
· They reduce the time and pain of putting bone grafts.
· All-on-4 implants resemble the tooth root and are fixed to the jaw bone, so they reduce the rate of bone loss.
· Saving time is a major advantage of these types of implants, as they can be loaded in only one visit.
· It’s easy to maintain good oral health in the case of all-on-4 implants, as the patient can use normal oral care methods.
· The high cost of all-on-4 implants may prevent the patients from affording them.
· In some cases, the bone doesn’t grow properly around the implant leading to its failure
· Some patients may notice difficulties in speech after implant placement surgeries.
There are slight differences between the implants used in all-on-4 treatment procedures and the traditional dental implant. They share the same part inserted in the jaw bone but differ in the exposed portion. The connection between the implant and the prosthetic teeth in case of all-on-4 provides a more comfortable and natural feeling during daily activities, such as chewing or talking.
To ensure the best results of the implant procedure, the oral surgeon should make a careful analysis of the jaw bone and the proper positions of the implant. The most common arrangement of the implants is two in the front area of the jaw which is aligned vertically inside the jaw bone, while the other two in the molar area of the jaw on each side of it inserted with a steeper angle to provide more stability.
After the implant insertion procedure, the implant-supported dentures can be loaded immediately.
The first step is being a good candidate for an implant procedure. The dentist or oral surgeon first evaluates the whole situation and decides what type of implants is needed. If only a few teeth are missing while the rest are in a good condition, your oral surgeon can recommend replacing them with traditional dental implants.
For all-on-4 implants, the following steps are followed under either local or general anaesthesia:
1- The oral surgeon extracts the hopeless teeth and examines the jaw bone to prepare it for the insertion of implants.
2- Two implants are placed in the anterior region and the other two are placed in the posterior area. The most commonly used material for the implant is titanium.
3- After implant placement, the screw will fuse with the bone with the prosthetic teeth (porcelain or acrylic) ready to be attached to them.
Compared to the traditional implant procedures, complications of all-on-4 implants are fewer. Post-operative swelling and pain can be expected after the implants are inserted in the bone, and may last for a few days. At this time, you should rest, take two or three days off work, and keep yourself hydrated.
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· Implant failure: in about 5% of patients, an implant can fail as it didn’t fuse with the bone. There’s no clear reason for why this can happen but can be solved by inserting a new one. The patient should follow all the instructions – including eating soft food, maintaining good oral hygiene, and avoiding smoking, before and after the dental implant procedure to minimize the possibility of implant failure.
· Infection: it’s is a possibility with any surgery; it’s not limited only to implant procedures. Peri-implantitis is one of the most common reasons for an infection that happens after implant surgeries.
How do All-on-4 dental implants compare to traditional implants?
There are many differences between all-on-4 dental implants and the traditional ones:
· In the case of traditional implants, every arch needs from 6 to 8 implants or even more, whereas the all on 4 implants procedure requires only 4 implants per arch.
· In most patients, there’s no need for bone grafting for all-on-4 dental implants, which is common in traditional implant procedures.
· To allow more contact with bone, implants of all-on-4 are inserted at an angle.
· All-on-4 implants save more time and money.
How are All-on-4 Dental Implants different from dentures?
All-on-4 implants are fixed to the jaw bone. They implants are permanently attached to the prosthetic teeth, making it easier to function and maintain good oral hygiene just like natural teeth.
How long is the All-on-4 dental implant surgery?
Each arch needs approximately 4 hours of surgery.
Are All-on-4 dental implants permanent?
The answer to this question depends on many factors:
· The teeth material is one of the most important factors here, many dentists use zirconia or hybrid-acrylic materials as they are proven to be the most durable and will last for a long time without defects.
· Proper oral hygiene is a crucial factor. You should clean the implants regularly and follow the mentioned instructions by your dentist.
· Visiting your dentist regularly is needed, to check if there are any cracks or defects to repair, which increases the longevity of your implants and saves them from failure
If all these factors are followed correctly, the life span of all-on-4 implants can last from 5 to +40 years, with 20 years being the average.