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Zirconia Dental Implant Crown , Tooth Implant Crown High Corrosion Resistant

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ShenZhen Topway Dental Laboratory Co., Ltd
City: Shenzhen
Province/State: Guangdong
Country/Region: China
Tel: 86-755-26985013

Zirconia Dental Implant Crown , Tooth Implant Crown High Corrosion Resistant

Brand Name : Topway Dental Laboratory
Certification : US FDA,ISO 9001:2015,ISO 13485:2012
Place of Origin : China
MOQ : 1
Payment Terms : T/T, Paypal, , Western Union, MoneyGram
Supply Ability : 20000
Delivery Time : 3-4 days
Packaging Details : plastic box + plastic bag
Material : Zirconia
Organic Matter : Not Easy To Attach
Wettability : Good
Biocom-patibility : Excellent
Type : Customed Implant Abutment
Corrosion Resistant : High
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Zirconia Dental Implants Crowns , Zirconia Tooth Crown FDA

Sample studies on the hygenic properties of zirconia

Studies have demonstrated that zirconia has a lower bacterial count and inflammatory infiltrate compared with titanium. Because of zirconia’s hygienic properties it has natural benefits in maintaining esthetic soft tissue and preserving crestal bone.
Rimondini et al. performed in vitro and in vivo tests comparing bacteria accumulation on zirconia and titanium. They concluded that zirconia accumulated
fewer bacteria than titanium.

Rimondini et al.’s study on the hygienic properties of zirconia compared with titaniumIn vitro test

• Disks of titanium and zirconia were used and tested for bacteria accumulation

• Cultures were incubated for 4 days and the bacterial counts were measured

• Zirconia showed significantly less bacterial growth in vivo test

• Zirconia and titanium were placed onto silicone stents and attached to orthodontic wires intraorally

• The stents were worn for 24 hours and removed

• Bacterial counts were measured on the zirconia and titanium

• Zirconia was found to have a lower bacterial count than the titanium

Scarano et al.’s 2004 work also aimed at comparing the hygienic properties of titanium and zirconia.

Their results were similar to Rimondini’s results – that zirconia is a more hygienic material.

Poortinga et al.’s 1999 research demonstrated that zirconia’s resistance to bacterial adhesion is likely due to the electron conductivity of this material. They demonstrated that the charge transfer occurs during bacterial adhesion. Bacteria that donate electrons adhere to the substrate more strongly than bacteria that accept electrons.

Inflammatory response with zirconia use

A natural response to the presence of bacteria is the release of inflammatory mediators which leads to boneloss. Rather than evaluating the biofilm, another
method of evaluating hygienic properties is to evaluate inflammatory factors such as vascular endothial growth factor (VEGF), nitric oxide synthase expression,
inflammatory infiltrate, and microvessel density in theperi-implant soft tissues. An increased level of these factors indicates the presence of inflammation due to
bacteria accumulation.

In 2006, Degidi et al. used these inflammatory markers to evaluate the hygienic properties of zirconia compared with titanium.

Degidi et al.’s study on inflammatory infiltrate levels with zirconia and titanium

• Implants were placed into human patients

• Half of the abutments were made of zirconia, while the other half were titanium abutments

• After 6 months biopsies were taken and analyzed for inflammatory mediators

• Significantly less inflammatory infiltrate was noted around the zirconia abutments compared with the titanium abutments

As a side note, regardless of the material used, if there is a micro-gap between the implant and abutment, inflammation and crestal bone loss may occur.

As a result, platform switching has been proposed as a solution to reduce the gap and limit crestal bone loss.

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