Implant Systems & Surfaces — NEET MDS | CrackMDS

SLA (sandblasted, acid-etched). SLA roughened surfaces enhance bone-to-implant contact.

Reduce crestal bone loss. A narrower abutment shifts the microgap inward, reducing crestal bone loss.

Titanium. Titanium is the standard implant material.

⭐ High-Yield Facts for Exam

Branemark — first documented successful osseointegrated implant.
Titanium (Grade IV cp-Ti or Ti-6Al-4V) is the standard; zirconia is a metal-free alternative.
Surface treatments increase bone contact: SLA (sandblasted, large-grit, acid-etched) gives superior osseointegration vs machined/turned surfaces.
Platform switching — using a narrower abutment than the implant platform; reduces crestal bone loss.
Morse taper connection — friction-fit ('cold weld') for a stable, sealed abutment interface.

Branemark = first success; titanium standard; SLA > machined; platform switching reduces crestal bone loss.

Q1. Which implant surface gives superior osseointegration?

A. Machined/turned

B. SLA (sandblasted, acid-etched)

C. Polished

D. Smooth

Show Answer

✅ Answer: B

SLA roughened surfaces enhance bone-to-implant contact.

Q2. Platform switching is used to:

A. Increase loading

B. Reduce crestal bone loss

C. Speed surgery

D. Lower cost

Show Answer

✅ Answer: B

A narrower abutment shifts the microgap inward, reducing crestal bone loss.

Q3. The standard implant material is:

A. Stainless steel

B. Titanium

C. Cobalt-chromium

D. Gold

Show Answer

✅ Answer: B

Titanium is the standard implant material.

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