J Periodontal Res. 2019 Feb;54(1):46-52. doi: 10.1111/jre.12603. Epub 2018 Oct 22.

Surface damage of dental implant systems and ions release after exposure to fluoride and hydrogen peroxide.

불소나 하이드로겐 퍼록사이드(미백제) 노출 후 이온 방출 과 치과임플란트 시스템의 표면 손상

Peñarrieta-Juanito G¹, Sordi MB¹, Henriques B^2,3, Dotto MER⁴, Teughels W⁵, Silva FS³, Magini RS¹, Souza JCM³.

Author information

1

Postgraduate Program in Dentistry (PPGO), Department of Dentistry, Division of Implant Dentistry, Federal University of Santa Catarina (UFSC), Florianópolis, Brazil.

2

Laboratory of Ceramic and Composite Materials (CERMAT), Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianópolis, Brazil.

3

Center for Microelectromechanical Systems (CMEMS-UMINHO), University of Minho, Guimarães, Portugal.

4

Department of Physics, Federal University of Santa Catarina (UFSC), Florianópolis, Brazil.

5

Department of Oral Health Sciences, University Hospitals Leuven, Katholieke Universiteit Leuven, Leuven, Belgium.

Abstract

OBJECTIVE:

The aim of this study was to evaluate surface changes on dental implant systems and ions release after immersion in fluoride and hydrogen peroxide.

METHODS:

Ten implant-abutment assemblies were embedded in acrylic resin and cross-sectioned along the implant vertical axis. Samples were wet ground and polished. Delimited areas of groups of samples were immersed in 1.23% sodium fluoride gel (F) or in 35% hydrogen peroxide (HP) for 16 min. Gels (n = 3) were collected from the implant surfaces and analyzed by inductively coupled plasma mass spectrometry (ICP-MS), to detect the concentration of metallic ions released from the implant systems. Selected areas of the abutment and implant (n = 15) were analyzed by atomic force microscopy (AFM) and scanning electron microscopy (SEM).

RESULTS:

SEM images revealed surface topographic changes on implant-abutment joints after immersion in fluoride. Implants showed excessive oxidation within loss of material, while abutment surfaces revealed intergranular corrosion after immersion in fluoride. ICP-MS results revealed a high concentration of Ti, Al, V ions in fluoride after contact with the implant systems. Localized corrosion of implant systems could not be detected by SEM after immersion in hydrogen peroxide although the profilometry showed increase in roughness. ICP-MS showed the release of metallic ions in hydrogen peroxide medium after contact with dental implants.

CONCLUSION:

Therapeutical substances such as fluorides and hydrogen peroxide can promote the degradation of titanium-based dental implant and abutments leading to the release of toxic ions.

치료목적으로 사용되는 불소와 하이드로겐 퍼록사아드(치아미백제)가 독성 이온을 방출함으로서 티타늄을 기반으로 하는 치과임플란트나 어버트먼트의 부식(degradation)을 촉진할 수 있다.

임플란트나 어버트먼트가 거칠어진다는 뜻은 임플란트 주위염의 위험이 그만큼 증가한다는 것을 의미합니다.