Servics & FQAs

Industry News

Why Do Dental Crown Edges Turn Black? And How to Fix It15 2025-12

Why Do Dental Crown Edges Turn Black? And How to Fix It

If the edge of your dental crown turns black, it’s usually because your gums have receded or the metal in the crown has leaked and stained the area. Receding gums are a serious oral health issue that needs to be fixed right away; staining from metal is just a cosmetic problem and can be handled depending on how bad it is.
WM DENTAL LAB – A Leading Chinese Dental Lab05 2025-12

WM DENTAL LAB – A Leading Chinese Dental Lab

Porcelain-fused-to-metal (PFM) crowns are hands down one of the most popular ways to restore and enhance smiles—and for good reason. When crafted well, they’re healthy, look totally natural, and blend right in with your bite. But let’s be honest: not all PFM crowns hit the mark. So what makes ours at WM DENTAL LAB stand out as truly high-quality?
What is the shoulder edge?01 2025-12

What is the shoulder edge?

In prosthodontics, tooth preparation is required for teeth needing full crown restoration. The uniform circular platform ground near the gingiva is called a shoulder margin.
What to Do After Tooth Extraction?21 2025-11

What to Do After Tooth Extraction?

Rest sitting up a bit—don’t lie flat or take a hot bath right away, or the wound might bleed.
What Are the Differences Between Inlays and Post-Core Crowns?17 2025-11

What Are the Differences Between Inlays and Post-Core Crowns?

An inlay is a specialized dental restoration method. It involves first removing the decayed part of the tooth, then taking an impression to custom-make the restoration—tailored specifically for the patient’s tooth—before the dentist places and cements it in the patient’s mouth.
What You Need to Know About Maryland Bridges?10 2025-11

What You Need to Know About Maryland Bridges?

​A Maryland bridge is a go-to choice for replacing missing teeth, slotting an artificial tooth into the gap without altering or damaging nearby natural teeth—its main role is as a temporary restoration.
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