Nullify Implant Failure Rates & Get 100% Results

Nullify Implant Failure Rates & Get 100% Results

Remember these tips and reduce your Implant failure rate.

The quest for the replacement of missing natural teeth has intrigued mankind since ancient times.  

Although many designs for the replacement of human teeth through the use of crown and bridges have been utilized with much success, the ability to replace the support given to the natural dentition by the natural root has been elusive until the discovery of dental implants.

The success of dental implants has increased dramatically because of a better understanding of bone response and the improvement in bone loading concepts.  But plenty of factors including improper patient selection.

Plaque accumulation, traumatic occlusion, debris retention from improper restorations and inadvertent bone preparation led to the breakdown of otherwise successful implants in the ’80s and mid-’90s.


Implant failure

The total failure of an implant to fulfill its purpose – functional, esthetic or phonetic – because of mechanical or biologic reasons.


Warning signs of implant failures

1.            Connecting screw loosening

2.            Connecting screw fracture

3.            Gum bleeding

4.            Prevalent exudate from large pockets

5.            Pain

6.            Fracture  prosthetic component

7.            Radiographic sign as angular bone loss

8.       Long standing infection and soft tissue sloughing during the healing period of surgery

9.            Mobility

10.         Probing depth of 6mm or more


Osteoporosis and other bone diseases

bone disease

Postmenopausal osteoporosis is a skeletal disorder in which there is a decrease in bone density and bone mass after menopause.  It has a more negative effect on mandibular bone.

Osteoporosis is contraindicated for dental implants.  The reduced bone density negatively affect implant-bone contact.

Osteoporosis requires a longer healing period, and occasionally hyperbaric oxygen therapy.

Tips to avoid implant failure

But the use of HA-coated implants increases implant-bone contact surface area with a biochemical bonding to bone solves the trouble.  

The increased number of implants to support the prosthesis also favors for better load distribution.

Uncontrolled diabetes

diabetes

The placement of implants in patients with metabolically controlled diabetes does not result in a greater risk of implant failure.

 The reason for doubting implants in diabetes patient is they experience more infection in clean wounds.  It is probably caused by thinning and inability of blood vessels so as to alter blood supply.


Smoking

smoking

Smokers are twice as predisposed to implant failures as non-smokers.

Long term smoking predisposes people to poor bone quality due to reduced vascularity of bone.

Tips to avoid implant failure

Hence a strict cessation protocol is followed before commencing treatment on a smoker.  This results in the improvement of blood flow and general condition within a few weeks.


Clenching

Bruxism or clenching disturbs the state of bone formation.  Bruxism is the most common cause of implant failure during the first year after implant placement.  It occurs more frequently in maxilla due to poor bone quality and increase in moment force.

 Bruxism is manifested as connecting screw loosening because of overload.

Tips to avoid implant failure

During treatment planning consideration given to increasing the number of implants, eliminating cantilevers and occlusal contacts in lateral excursions.

The use of an occlusal guard and wide diameter implants to provide a greater surface area.  

Increasing the time intervals between prosthetic restoration improves the stress distribution throughout the implant system.


Poor house care

poor hygiene

Just like for gum disease, dental plaque can cause implant failure.  

Because the suprabony connective tissue fibers are oriented parallel to the implant surface, it is susceptible to plaque accumulation.

The nature of implant surface favors bacterial colonization.

Tips to avoid implant failure  

It is recommended that the patient is recalled frequently preferably at a minimum of 3 months intervals.

Bleeding on probing and radiographic evaluation is performed using plastic tipped probes for checking pocket depths.  

Soft tissue debridement is performed by plastic curettes and plastic tips for ultrasonic scalers and topical systemic antimicrobial drugs should be used along.  

Finally, a well-defined maintenance programme is designed.


Periodontitis/ Gum disease

Transmission of pathogenic organisms from periodontitis sites to implant sites in the same mouth (cross-infection) is a likely event.  

Increased Gram-negative anaerobic flora with high levels of spirochetes is found to be associated with implant failure at abutment connection.

Tips to avoid implant failure

Therefore the need for a clinical protocol that includes the elimination of a periodontic disease in prospective implant patients is mandatory.


Radiation therapy

radiation therapy

The main problem with irradiated patients is decreased salivary flow, liability for infection and the possibility of osteoradionecrosis(destruction of bone).

The waiting period between the end of radiation therapy and implant placement varies from 3-12 months.

The failure rate of dental implants after oral radiotherapy is minimal.

Tips to avoid implant failure

Wait for a longer healing period and to use hyperbaric oxygen therapy, especially in the maxilla, to improve the healing capacity.


Improper implant placement

implant

Improper implant placement can result in a framework design that compromises esthetics and distribution of force on implants.

Endosseous root form implants distribute occlusal load best in an axial direction.

If applied load is in a lateral direction, many damaging stresses are generated directly at the crest of bone.  This may lead to implant failure.

Offset loading can be a damaging factor especially in cases of posterior single tooth replacement in which magnitudes of force is intense.

Implant placement is a big problem in cases of severe bone resorption.  

Tips to avoid implant failure

Overcome implant failure of bone resorption by bone grafting.

Placing the implant in an angulated fashion or using angulated abutment reduces the chances of failure. Single change over 25o causes an implant to fail.  Even though angulated abutments exhibited good preliminary results, they have more aggression toward bone because of induced shear stresses when compared with standard abutments

Lack of initial stabilization

It caused by excessive force to disengage a locked drill during preparation, faulty hand positioning during drilling or threading, poor bone quality and the use of finger rest during osteotomy preparation.

Tips to avoid implant failure

Mastering of surgical skills, proper drill grip, and the use of sharp drills can reduce this type of failure.


Impaired healing and infection because of improper  flap design

 The clinical sign of infection observed during the post operative submerged period can lead to an increased risk of implant failure.

Also, medical conditions like diabetes, anemia, and jaundice play a role in wound healing impairments.


Still there are many unknown reasons for implant failure.

Good oral hygiene is the key to avoid all dental problems.

Visit your dentist at regular intervals for cleaning and followups and maintain good oral care at home to protect your implant.

Read more for homecare tips to maintain the everlasting dental implant.



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