Clinical and radiographic changes at tissue level implants with either a machined or a modified transmucosal neck surface: A 3-year multicentre randomized controlled proof-of-concept study.

Background: Surface modification may yield enhanced soft tissue adhesion to transmucosal titanium implant necks.

Aim: To evaluate and compare changes in soft tissues around implants with a modified hydrophilic sandblasted and acid-etched neck (mSLA; test) to those with a machined neck (M; control).

Materials And Methods: Implants with a diameter of 4.

Subgingival air-polishing with erythritol during periodontal maintenance: randomized clinical trial of twelve months.

Objectives: To evaluate repeated subgingival air-polishing in residual pockets with a new erythritol powder containing 0.3% chlorhexidine.

Material And Methods: Single-centre, examiner masked, randomized clinical trial of 12 months with a two-arm, within-subject parallel design.

Subgingival plaque removal using a new air-polishing device.

Background: The purpose of this study is to evaluate the safety, patient acceptance, and short-term microbiologic effect of a new air-polishing device in subjects in maintenance care with residual pockets > or =5 mm.

Methods: This was an examiner-masked, randomized, split-mouth clinical trial. A new disposable nozzle, allowing the subgingival application of amino acid glycine powder at a limited pressure, was compared to scaling and root planing (SRP) in 50 subjects with residual pockets during the maintenance phase.

[Subgingival air-polishing: new perspectives for periodontal maintenance?].

After completion of comprehensive periodontal therapy, the main objective is to maintain gingival tissues in a clinically healthy state. Traditional methods like curettes and ultrasonic devices used during maintenance are responsible of irreversible hard tissue damages ensuing from repeated mechanical scraping of tooth surfaces. A new approach to clean root surfaces without inducing these damages may be the air-polishing technology.