Authors: Tatiana Aviles, ShuMin Hsu, Josephine Esquivel-Upshaw, Patrick H. Carey IV, Arthur Clark, Fan Ren, Chaker Fares
Faculty Mentor: Josephine Esquivel-Upshaw
College: College of Dentistry
Titanium implants are commonly used in the field of dentistry for prosthetics to replace missing teeth. For successful therapy, the implant must bind to the surrounding bone (osseointegrate) to achieve stability of the prosthesis. The objective for this ongoing study is to determine the success of different implant coating in providing optimal osseointegration through the formation of hydroxyapatite (HA). Hydroxyapatite serves as a scaffolding for the bone to build on and can facilitate bone development. Quaternized titanium nitride (Q. TiN), titanium nitride (TiN), and silicon dioxide (SiO2) coatings were deposited onto 3mm titanium discs using plasma-enhanced chemical vapor deposition. Two additional discs were tested, one after 24 hours of submersion in sodium hydroxide (NaOH)and the other a pure titanium disc as a control group. Each sample was submerged in simulated body fluid (SBF), replenished every 48 hours, over a period of 28 days. The extent of hydroxyapatite formation, mass, depth, and composition were studied using a digital microscopy system, scanning electron microscopy and energy dispersive analysis x-rays (EDAX).