Bone loss - criteria for endosteal implants, Biology

Assignment Help:

Q. Bone Loss - criteria for endosteal implants?

Crestal bone loss after intial healing is a primary indicator of the need for initial preventive therapy. Early loss of crestal bone is usually a result of excess stress at the permucosal site. It is suggested that an implant be inserted at or above the bone crest to avoid an increase in the Sulcus Depth subsequent to abutment placement. The initial bone loss after the abutment is connected and during the 1st 2 years of function is usually a result of excessive stress at the crestal implant bone interface. Secondly, bone loss around an implant is usually a compound condition created by bacteria and increased stress (a result of parafunction and / increasing crown height from crestal bone loss and anaerobic bacteria forming once the sulcus is > 4 to 5 mm). Clinical observations obtained by probing or radiographic measurements of 0.1 mm per year for bone loss are operator sensitive and not reliable. Instead the threaded implant pitch (distance between the threads) is usually 0.6 mm and can be used as a radiographic marker. Probing changes of 0.5mm or more are also more realistic to monitor. In general, if more than 1 half of the implant height has lost crestal bony contact, the implant is at significant risk and considered a failure regardless of the intial amount of implant bone contact.


Related Discussions:- Bone loss - criteria for endosteal implants

Difference between reproduction system of man and rabbit, Difference betwee...

Difference between Reproduction System of man and rabbit -   S.No.   Man   Rabbit   1.   2.   3.

Define iodothyronine deiodinases - functions of selenium, Define Iodothyron...

Define Iodothyronine Deiodinases - functions of selenium in humans? Another group of selenoproteins are the iodothyronine deiodinases essential for the conversion of thyroxine

Formation of blastopore, Formation of Blastopore The slit such as ope...

Formation of Blastopore The slit such as opening of the initial groove is the opening of the developing blastopore and its dorsal rim is termed as the dorsal lip of blastopor

Define the uremia and nitrogen disposal, Define the Uremia and Nitrogen Dis...

Define the Uremia and Nitrogen Disposal? In animals, faecal and renal nitrogen were enhanced and decreased uremia was seen in normal and nephrectomised animals. The mechanisms

Amino acids, Amino acids are the subunits ( or the monomers) from which pr...

Amino acids are the subunits ( or the monomers) from which proteins (polymers) are assembled. Each amino acid comprises of an amino functional group, and a carboxyl acid group, an

Bioinformatics is important, Why do you think that bioinformatics is import...

Why do you think that bioinformatics is important?         Ans) Today, we can use computers to access much more biological data than still before. You can learn a lot by analysi

Lateral roots - root apex, Lateral Roots - Root Apex Lateral roots no...

Lateral Roots - Root Apex Lateral roots normally arise at a definite distance behind the tip from areas close to or opposite the points of xylem star. So, a triarch root can

Determine the importance of educational history- assessment, Determine the ...

Determine the importance of Educational History- assessment  A complete school history includes information regarding a child's current grade placement, any grade repetitions o

What''s the difference between heterozygosity & homozygosity, What is the d...

What is the difference between heterozygosity and homozygosity? The Homozygosity occurs when an individual has two identical alleles of a gene, for instance, AA or aa. The Het

Sporophytic incompatibility, Sporophytic Incompatibility The recogniti...

Sporophytic Incompatibility The recognition and rejection reactions in a SSI system occur on the stigma surface, placing barriers for pollen germination or penetration of poll

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd