OBJECTIVES This study was carried out to investigate the potential of titanium to induce hypersensitivity in patients chronically exposed to titanium-based dental or endoprosthetic implants. METHODS Fifty-six patients who had developed clinical symptoms after receiving titanium-based implants were tested in the optimized lymphocyte transformation test MELISA against 10 metals including titani...

Occasionally, head and neck cancer patients treated with high-energy X-rays and gamma rays have titanium dental implants. The aim of this study was to calculate alterations in the irradiated bone caused by a foreign body, representing a titanium implant in size and physical qualities, using a stochastic (Monte Carlo) simulation. A clinical linear accelerator was simulated using BEAM/EGS4. The c...

BACKGROUND A worrying correlation which seems to be overlooked by clinicians is allergic reactions to titanium (Ti) in patients with dental implants. PURPOSE The aim of the present review study was to assess whether or not Ti sensitivity is associated with allergic reactions in patients with dental implants. MATERIALS AND METHODS To address the focused question "Can Ti cause allergic reacti...

A fundamental improvement of restorative dentistry is the compensation of missing teeth by insertion of artificial dental roots allowing retention of dental prosthesis. The function of dental implants conserves a permanent perforation of the mucosa and upholds a non-physiological contact of bone with foreign material and oral micro-organisms. Occasionally head and neck cancer patients are sched...

Buccal allergies represent a growing problem and often go undiagnosed by health professionals. There is an increase in the prevalence of oral allergies to dental materials, and especially to metals used in dental materials. Titanium, used in orthopaedic devices and oral implants, although considered an inert material, can actually induce toxicity or allergic type I or IV reactions. Cases of an ...

It is well known that the features of teeth in men and women can be changed with increasing age, in which some teeth could be damaged. Thus the dental-implants, which are implanted at the positions of damaged teeth to replace the latter, are developed and used widely in dentist medicine. At present, the dental-implants are, in general, manufactured by titanium materials. Clinic experiments show...

Yellow nail syndrome is a rare disease of unclear etiology. We describe a patient who develops yellow nail syndrome, with primary nail and sinus manifestations, shortly after amalgam dental implants. A study of the patient's nail shedding showed elevated nail titanium levels. The patient had her dental implants removed and had complete resolution of her sinus symptoms with no change in her nail...

Titanium (Ti) is one of the most widely used biomaterials for manufacturing dental implants. The implant surface properties strongly influence osseointegration. The aim of the present study was to in vitro investigate the characteristics of Ti dental implants in terms of mutagenicity, hemocompatibility, biocompatibility, osteoinductivity and biological safety. The Ames test was used to test the...

Replacing the dental arch evolved fixed prosthesis and later dental implants. Dental implants have intended to cover missing teeth in the maxilla and mandible. However, many areas have insufficient bone, and this is critical to success and prognosis. Therefore, this report case discusses an approach of implant treatment undertaken in a patient with pronounced maxillary atrophy using Pterygoid i...

titanium (ti) is one of the most widely used biomaterials for manufacturing dental implants. the implant surface properties strongly influence osseointegration. the aim of the present study was to in vitro investigate the characteristics of ti dental implants in terms of mutagenicity, hemocompatibility, biocompatibility, osteoinductivity and biological safety. the ames test was used to test the...