Titanium allergy in dental implant patients: a clinical study on 1500 consecutive patients.

Background: In dentistry, allergic reactions to Ti implants have not been studied, nor considered by professionals. Placing permanent metal dental implants in allergic patients can provoke type IV or I reactions. Several symptoms have been described, from skin rashes and implant failure, to non-specific immune suppression.

Home oral hygiene revisited. Options and evidence.

In regard to the limited literature on the subject, and the contradictions observed, we can not conclude that the types of manual brushes produce clinically important effects on the patients' gingival health, or that these effects can be detected consistently. However, the best results have been obtained with new brush designs, and future studies are necessary to clarify the existing contradictions. There is a clear need of long-term studies which comparatively evaluate the ability to reduce gingivitis and plaque with the newly designed brushes.

Evaluation of the efficacy of two potassium nitrate bioadhesive gels (5% and 10%) in the treatment of dentine hypersensitivity. A randomised clinical trial.

Aim: A randomised clinical trial was designed to compare the immediate efficacy (48-96 h) of two treatments with bioadhesive gels with different concentrations of potassium nitrate (NK 5% versus NK 10%) on dentine hypersensitivity (DH). We evaluated DH by means of the use of the evaporative stimulus (ES), as the main outcome, using a placebo control group as reference.

Patients And Methods: Forty-five consecutive patients who, after stimulation with a blast of air, had at least one tooth with DH > or = 2 according to the verbal ratings scale (VRS) scale were selected.