The connective tissue response to Ti, NiCr and AgPd alloys.
The aim of the study was to compare the connective tissue response of Lewis rats to Ti, NiCr and AgPd alloys. It was found that implants were covered by collagen-rich, well vascularized capsules. Titanium was covered by the thinnest capsule (57 ± 20 μm) and AgPd alloy was covered by the thickest capsule (239 ± 50 μm). The PCNA+ cell prevalence in the capsules was lower for titanium than for AgPd and NiCr. Mast cells formed a gradient to a depth of 1200 μm only for titanium implants. Cells with brown to black silver granules in the cytoplasm were observed close to AgPd implants. The results suggest that titanium implants induce a weaker connective tissue response than implants made from NiCr and AgPd alloys.
Department of General Dentistry, Medical University of Lodz, Poland. monika.lukomska-szymanska@um.ed.lodz.pl
Monika
M
Łukomska-Symańska
Piotr M
PM
Brzeziński
Andrzej
A
Zieliński
Jerzy
J
Sokołowski
D000497:Alloys / Q000737:chemistry*; D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry; D002467:Cell Nucleus / Q000378:metabolism; D002858:Chromium Alloys / Q000737:chemistry*; D003094:Collagen / Q000032:analysis; D003238:Connective Tissue / Q000187:drug effects*; D008297:Male; D008407:Mast Cells / Q000378:metabolism; D009532:Nickel / Q000737:chemistry; D010165:Palladium / Q000737:chemistry; D018809:Proliferating Cell Nuclear Antigen / Q000378:metabolism; D019736:Prostheses and Implants / Q000009:adverse effects; D051381:Rats; D011917:Rats, Inbred Lew; D012834:Silver / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*
D000497:Alloys; D001672:Biocompatible Materials; D002858:Chromium Alloys; D018809:Proliferating Cell Nuclear Antigen; D012834:Silver; D010165:Palladium; D009532:Nickel; D003094:Collagen; D014025:Titanium