Related Experiment Video
Updated: May 31, 2026
07:05
In Vitro Evaluation of The Effects Of Er,Cr:YSGG and Diode Lasers Used on Titanium Cylinder
Published on: June 6, 2025
Acute inflammatory response to laser-induced micro- and nano-sized titanium surface features
Anders Palmquist1, Anna Johansson2, Felicia Suska3
1Researcher, Department of Biomaterials, Sahlgrenska Academy at University of Gothenburg, Göteborg, Sweden.
Clinical Implant Dentistry and Related Research
|July 13, 2011
Summary
Laser-modified titanium implants with micro- and nanoscale features significantly reduce early inflammatory cell infiltration. This surface topography downregulates inflammatory events, enhancing tissue response for better implant integration.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Implantology
Background:
- Implant surface topography influences the inflammatory response, a critical factor in tissue integration.
- Laser ablation enables creation of combined micro- and nanoscale surface modifications on implants.
- Such modifications show potential for enhanced bone growth and biomechanical stability in vivo.
Purpose of the Study:
- To investigate the early in vivo inflammatory response to laser-modified titanium disks.
- To compare laser-modified surfaces against machined titanium disks and sham controls.
- To understand the role of surface topography in modulating implant-induced inflammation.
Main Methods:
- Subcutaneous implantation of circular titanium disks in a rat model for 24 and 72 hours.
- Evaluation of cellular infiltration, including specific cell types (mononuclear and polymorphonuclear).
- Quantification of pro-inflammatory cytokine levels (TNF-α and MCP-1).
Main Results:
- Laser-modified implants showed significantly reduced recruitment of inflammatory cells compared to machined implants.
- Similar concentrations of key pro-inflammatory cytokines (TNF-α, MCP-1) were observed around both surfaces.
- Slightly higher cell viability was noted on the laser-modified surfaces.
Conclusions:
- The combined micro- and nanoscale surface features created by laser treatment downregulate early inflammatory responses.
- Laser-modified surfaces may offer an improved inflammatory profile for dental and orthopedic implants.
- Surface topography is a key determinant in modulating the host tissue response to implants.
Related Concept Videos
01:26Acute Inflammation I: Inflammatory Response
Acute inflammation is a rapid, short-lived physiological response to tissue injury or infection, designed to eliminate harmful agents and initiate repair. This tightly regulated process typically lasts from minutes to several days and is triggered by factors such as microbial invasion, physical trauma, or chemical injury.Recognition and Mediator ReleaseThe inflammatory response begins when resident immune cells—such as mast cells, macrophages, and dendritic cells—detect damage-associated...
01:28Inflammatory Response
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
01:12Chronic Inflammation: Introduction
Chronic inflammation is a prolonged, dysregulated immune response that persists for weeks to years when the inciting stimulus is difficult to eradicate or when self‑antigens drive ongoing reactivity. Morphologically, it is defined by mononuclear cell infiltration, progressive tissue destruction, and concurrent attempts at healing via angiogenesis and fibrosis. Compared with acute inflammation, edema is less prominent while cellular infiltration predominates; triggers include persistent...
01:30Inflammatory Response I: Vascular and Cellular
The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...