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Materials for endosseous dental implants

J C Wataha¹

¹Medical College of Georgia School of Dentistry, Augusta, USA.

Journal of Oral Rehabilitation

|February 1, 1996

Summary

Understanding dental implant materials like titanium is key for osseointegration. Research focuses on the implant-bone interface to improve dental implant success and biomaterials.

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Area of Science:

Biomaterials Science
Dental Implantology
Tissue Engineering

Background:

Osseointegration is crucial for dental implant success, but only specific materials promote it.
Titanium and its alloys are widely used, with titanium's surface oxide playing a key role in bone integration.
The precise nature of the implant-bone interface and the long-term effects of released elements are not fully understood.

Purpose of the Study:

To explore the critical factors influencing osseointegration and biointegration of dental implants.
To investigate the differences between commercially pure titanium and titanium alloys (Ti6Al4V) at the material-bone interface.
To examine the role of ceramic coatings in enhancing bone ingrowth and chemical integration.

Main Methods:

Review of existing literature on dental implant materials and their interaction with bone.
Analysis of the surface chemistry and ultrastructure of titanium and coated implants.
Investigation of the biological response at the gingival and connective tissue interfaces.

Main Results:

Titanium's surface oxide facilitates biological molecule deposition, enabling close bone proximity to the implant surface.
The epithelial and connective tissue interfaces with titanium share characteristics with native tooth-gingiva structures, though details remain vague.
Ceramic coatings show potential for improving bone ingrowth and chemical integration, but their mechanisms and degradation are complex and debated.

Conclusions:

Further understanding of the material-bone interface is essential for advancing dental implantology.
Investigating the long-term consequences of elemental release and coating degradation is critical.
Development of novel biomolecules and artificial tissues holds promise for future dental implant innovations.

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