Dental
implants are designed to be a permanent
replacement for a missing tooth or teeth and are also growing to be popular
alternative to removable dentures or fixed bridges.
Still
some patients do experience some complications. The following are a few of the
possible causes and reasons behind dental implant failure:
Success
Rates
The
majority of the problems that occur after the implant placement are generally minor
and easily resolved. If something goes wrong, consult your dentist or surgeon.
Osseo-Integration
Osseo-integration
is the formation of functional and structural bond between bone and an
artificial implant. This process takes place over several months after the
implant is placed in the bone.
The
failure of the jawbone to fuse together properly with the implant is considered
to be a failed osseo-integration. An implant is failed if it is mobile, falls
out of bone or shows signs of bone loss of more than 1 mm even after the first
year.
For
patients who don’t have adequate bone height, width or length, procedures such
as a sinus lift or bone graft can help in increasing space and bone mass loss.
Peri-Implantitis
(Infection)
Peri-implantitis,
or infection, is a condition that involves inflammation of the gum and/or bone
around the implant. A form of periodontal disease, peri-implantitis can cause
bone loss and implant failure.
Nerve
& Tissue Damage
When
an implant is placed too close to a nerve, patients may experience chronic
pain, tingling or numbness in their cheek, gums, tongue, lips or chin.
Some
bleeding and pain is to be considered normal for a couple days after the
surgery, but if the pain is extreme, the bleeding excessive or they it last
longer than a few days, one should contact their dentist as soon as possible
Overloading
Immediate
loading is a all-in-one stage treatment method where the crown and abutment are
placed on the dental implant right after the implant placement.
The
normal process consists of a two stages and provides time for the implant to
integrate with the bone before adding the external components.
Overloading
refer to failures caused by excessive pressure or forces placed on the
protruding abutment and/or crown. These forces easily disrupt the osseo-integration
process.
Sinus
Problems
An
oral surgeon may perform a sinus augmentation procedure, to develop a strong
bone foundation. The goal is to create more bone in that area in order to
support a dental implant.
Sometimes
if the implant protrudes into the sinus cavity, that area can become infected
and/or inflamed. Patients should always inform their oral surgeon about sinus related
issues prior to the Dental
Courses in India.
Other
Risks & Causes Of Failure
The
following are other risks and causes are:
·
Foreign
body rejection –it is possible that a
patient’s body will reject the dental implant.
·
Failure of
the implant itself –An implant can crack or
fracture if it is subjected to excessive external force impact like a blow to
the face or excessive pressure over a period of time like grinding teeth or an
unbalanced crown.
·
Allergic
reaction –While it is quite rare, some
patients can have an allergic or inflammatory reaction to titanium.
Contraindications
§ Bruxism (tooth grinding or clenching)
§ Failure to locate a primary nerve in the lower jaw
§ Uncontrolled Type II diabetes
§ Insufficient bone height, width or length
§ Oral or intravenous bisphosphonates
§ Smoking
