Titanium Implant fractures vs CeraRoot

Despite its high success rate, therapy with osseointegrated dental implants is not free of complications. Among the problems that may occur is fracture of implants, which, albeit a rare phenomenon, may lead to unpleasant clinical outcomes for the patient, as well as for the clinician. Thus, it is paramount to know the factors related to the biological processes involved in maintenance of osseointegration and biomechanics applied to dental implants to prevent such complications, as well as treatment options available to deal with the problem.

Causes of TITANIUM IMPLANT FRACTURE may be:

(1) defects in the design of the material
(2) excessive torque during insertion of implant
(3) nonpassive fit of the prosthetic structure
(4) biomechanical or physiologic overload.
Possible causes of fracture include failure in the production and design of dental implants, bruxism or large occlusal forces, superstructure design, implant localization, implant diameter, metal fatigue, and bone resorption around the implant.5 In addition, the galvanic activity of metals used in prosthetic restorations can be cited as a cause.

Defects in the production and design of dental implants are very unlikely reasons for fracture. Microscopic analysis of fractured fixtures revealed no porosity or any other defects in the titanium structure, a finding that eliminated failure in the manufacturing process as causative.

The stress caused by retaining screws of prostheses with a nonpassive fit may result in constant tension on the implant, predisposing it to fracture. Often, screw loosening precedes implant fracture and may be a warning sign that the prosthetic structure needs to be reassessed.

Article describing techniques on how to remove broken dental implants.

Here is a list of xrays showing multiple titanium dental implants that have fractured and are no longer functional and therefore they have to be removed:

titanium-fracture-1 titanium-fracture-2 titanium-fracture-3 titanium-fracture-4 titanium-fracture-5 titanium-fracture-6 titanium-fracture-7 titanium-fracture-8 titanium-fracture-9 titanium-fracture-10 titanium-fracture-11 titanium-fracture-13      

Theses images show that titanium implants fracture not only at the abutment portion, but also deeper down into the bone, and therefore the implants have to be removed using surgical procedures. When titanium implants break at the connection level, sometimes a new abutment can solve the problem, but other occasions where the fracture is beyond the prosthetic part, then the implant has to be removed because it is no longer functional. In general the bigger the diameter of the implant is, the risk of fracture decreases. Because the majority of the titanium implants are made with a two-piece design, the prosthetic connection is weak because it requires the implant to be hollow. If the selection of the implant is not done properly, there can be fractures.

Causes of CERAROOT IMPLANT FRACTURE may be:

(1) undetected defects during the production process
(2) excessive torque during insertion of implant
(3) biomechanical overload
(4) selection of small diameter implant in demanding positions such as MOLAR areas.
CeraRoot implants are designed and manufactured in one-piece to survive masticatory forces and to remove the micro-gap at the prosthetic connection that contributes to bacteria colonization and gingival inflammation. CeraRoot implants are 70% more strong than conventional two-piece titanium implants. In general, because titanium implants are in two-piece design, it offers the advantage to the dentist to choose wether the crown will be cemented or screw-retained. But this also makes the two-piece design weaker. The crowns that are manufactured for CeraRoot implants are always cemented type. Cement is very easy to clean after the crown is placed on a CeraRoot implant because the shoulder of the implant is at the gum level (not deep… submerged like the grey metal titanium ones).

In the case below, it shows a CeraRoot implant (CeraRoot 21) placed in a patient with a resorbed thin alveolar crest. The patient had the crown placed on the implant for almost a year. The patient had a car accident, and the crown and the abutment broke off from the implant. Because there still was a good amount of implant structure above the bone, the implant was re-shaped to fit a new crown. This solution can only be done with CeraRoot implants. With titanium implants, if the prosthetic platform breaks there is no solution but to remove the implant.

ceraroot-fracture ceraroot-fracture2 ceraroot-fracture3ceraroot-fracture4 ceraroot-fracture5

 

keywords: fractura implante dental de titanio, implante dental fracturado, rotura implante dental, Zahnimplantat Fraktur, trephine, implant removal kit

See examples of how titanium implants are removed and replaced with CeraRoot zirconia implants. Case 1    Case 2


 

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