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The implant stability quotient (ISQ) is the value on a scale that indicates the level of stability and osseointegration in dental implants. The scale ranges from 1 to 100, with higher values indicating greater stability. The acceptable stability range lies between 55 and 85 ISQ. [1] ISQ values are obtained using resonance frequency analysis (RFA).
Failure of a dental implant is often related to the failure of the implant to osseointegrate correctly with the bone, or vice versa. [4] A dental implant is considered to be a failure if it is lost, mobile or shows peri-implant (around the implant) bone loss of greater than 1.0 mm in the first year and greater than 0.2 mm a year after. [5]
The implant fixture is first placed so that it is likely to osseointegrate, then a dental prosthetic is added. A variable amount of healing time is required for osseointegration before either the dental prosthetic (a tooth, bridge, or denture) is attached to the implant or an abutment is placed which will hold a dental prosthetic or crown.
The levonorgestrel implant is a type of long-acting reversible birth control. [5] It primarily works by stopping ovulation and by thickening the mucus around the cervix. [4] A levonorgestrel-releasing implant was approved for medical use in 1983 in Finland and in the United States in 1990. [1]
As a drug delivery system, a hernia mesh can be used to deliver antibiotics, [23] antiseptics, [24] antimicrobials, [21] antimicrobial peptides [25] or nanoparticles. [26] Different techniques can be used to implement the integration of such substances, including dipping/soaking, physical coating, chemical surface functionalization and ...
Greenfield's implant, an iridioplatinum implant attached to a gold crown, showed evidence of osseointegration and lasted for a number of years. [14] The first use of titanium as an implantable material was by Bothe, Beaton and Davenport in 1940, who observed how close the bone grew to titanium screws, and the difficulty they had in extracting ...
In 1994, Stryker sold the DB Precision Fin Implant System to a group based in Boston which, at that point in time, had been renamed Bicon Dental Implants or simply Bicon (a name that is a portmanteau of the Latin “bi” – meaning two – and “con” – indicating the simple two-part design of the implant/abutment connection). [23]
A number of root analogue dental implant systems have become commercially available, with varying degrees of success. [13] However, so far, no root analogue dental implant system has received regulatory approval. Despite satisfactory clinical results, none of these solutions is widely available on the market. [5]