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Shenzhen Berry Dental Laboratory Co.,Ltd  

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High Corrosion Resistant Full Dental Implants Excellent Biocompatibility 

Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: Implant Abutment

High Corrosion Resistant Dental Implants Crowns Excellent Biocompatibility
 
 
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High Corrosion Resistant Dental Implants Crowns Excellent Biocompatibility

 

 

 

Cast Gold


Implant manufacturers recognized the limitations of early “stock abutments” and developed a castable abutment called a UCLA abutment. This abutment is
comprised of a machined-fit gold alloy base that fits to the corresponding implant head, combined with aplastic sleeve which can be cut, modified, and added
to with wax prior to casting into gold .


Cast gold abutments were used to fabricate implant-level, custom-cast restorations that provided subgingival margins for esthetics, reduced height for vertical
occlusal clearance, and/or custom angles. Cast gold abutments were popular during 1980s and 1990s but with the introduction of more sophisticated stock
abutments and CAD/CAM milled abutments they have lost popularity.

 

• Gold specs: 60–65% gold, 20–25% palladium, 19%platinum, and 1% iridium (not a ceramic alloy).


• Melting range: Solid, 1400°C; liquid, 1490°C.


• Recommended casting alloys: High palladium or high noble porcelain fusing alloys or type III or type IV high noble dental alloys.


Generally, a plastic UCLA abutment is waxed up and customized to an ideal geometry and shape. After investing, the wax and plastic UCLA are burned out
of the pattern following the lost wax process.

 

When molten alloy is cast into the investment mold, the gold base component of the UCLA abutment is incorporated into the casting and provides a machined interface that precisely fits the implant.

 

The gold base is fabricated from a non-oxidizing alloy that promotes chemical adhesion of the cast alloy, but does not permit the adhesion of porcelain.

 

 

Abutment materials and soft tissue response
Abutment
material
Forming the
peri-implant seal
Maintaining the
peri-implant seal
Titanium
(machined or
polished)
Long-term studies supporting favorable soft tissue results
with machined or polished titanium.
Most validated abutment material in the literature
Long-term studies supporting favorable
soft tissue maintenance with machined or
polished titanium. Most validated abutment
material in the literature
Titanium abutments
with a Laser-Lok
transmucosal
collar
Greatest ability to form a connective
tissue attachment compared with all other abutment materials on the
market
Strongest peri-implant seal permitting
improved long-term soft tissue maintenance
(comparable mucosal seal to the natural
dentition)
Gold Conflicting studies in the literature
concerning the ability to form an adequate peri-implant seal
Strongest peri-implant seal permitting
improved long-term soft tissue maintenance
(comparable mucosal seal to the natural
dentition)
PEEK
(polyether
ether ketone)
Comparable soft Comparable hygienicz properties to titanium
Zirconia Comparable ability to form a peri-implant seal to that of machined or polished titanium

Most hygienic abutment on the market allowing improved long-term maintenance of the peri-implant seal

 

 

Relevant Studies Comparing Gold,Porcelain, Titanium, and Aluminum


• Five beagle dogs were used for dental implantation



• Each dog had two commercially pure titanium abutments, two aluminum oxide abutments, one short titanium abutment with attached porcelain fused to gold, and one gold abutment placed



• After 6 months the titanium and aluminum oxide abutments had formed a junctional epithelium of 2 mm and a connective tissue portion of 1–1.5 mm in height



• After 6 months the gold and porcelain abutments had no attachment formed at the abutment level.
The soft tissue margin had receded and the bone resorbed



• It was concluded that titanium and aluminum oxide abutments have a favorable soft tissue response over gold or porcelain


 

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 Mr. Ms. Jenny Song

Tel: 86-755-26738545
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Company Info

Shenzhen Berry Dental Laboratory Co.,Ltd [China (Mainland)]


Business Type:Manufacturer
City: Shenzhen
Province/State: Guangdong
Country/Region: China (Mainland)

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