Fogorvosi szemle, 2014 (107. évfolyam, 1-4. szám)

2014-06-01 / 2. szám

66

FOGORVOSI SZEMLE ■ 107. évf. 2. sz. 2014.

Joób-Fancsaly Á, Divinyi T, Huszár T, Nagy P, Pammer D, Bognár E

A case study showing new quantitative measuring protocols for assessing dental implant surface treatments tailored for osseointegration

Connecting implant to bone tissue is central to modern implantology. Dental-implant surfaces are machined then modified with various treatments. Secondary stability of implants depends on osseointegration, which is influenced by implant-surface micromorphology. The aim of the present research is to develop new methods of implant-surface analysis and quantities of adhering bone. 2 mm-thick discs were machined from Grade 4 titanium. The discs received surface treatments identical to those on Uniplant SP® type implants. As tests can only be performed on a flat surfaces and difficult on curved implant surfaces therefore it was conducted on discs. Both received laser surface modification (LSM) at 3 Joules. Histological tests on animal-experiment models showed high-energy LSM discs osseointegrated better than freshly-machined discs. After animal-experiment tests, the process was patented and then introduced into clinical practice. Over 9 years passed before the removal of two LSM implants in October 2013 because of periimplantitis. After extraction, scanning-electron-microscope examinations discovered bone tissue in the screw thread area of LSM zones. Dental implant surface area under bone tissue was measured by a new method for comparing implant-surface regions. Stereo-microscope and image-analysis software assessed the surface area covered by bone tissue. A new measurement method was worked out for comparing bone-covered surface area versus bone-free area.

Key words: dental implant, laser surface modification, morphology, osseointegration

KITÜNTETÉS

A március 15-i nemzeti ünnep alkalmából prof. dr. Nagy Katalin, a Szegedi Tudományegyetem, Fogorvostudományi Kar dékánja, tanszékvezető egyetemi tanára az egészségügyi ellátás fejlesztése terén, szakmai, közszolgálati munkájában elért kimagasló teljesítménye elismeréseként Batthyány-Strattmann László-díjat kapott.

Az elismeréshez ezúton is gratulálunk!