Crestal bone loss associated with different implant surfaces in the posterior mandible in patients with a history of periodontitis. A retrospective study.

Objective: To retrospectively assess the interproximal bone loss (CBL) in external hexagon implants (EHI), with different surface micro-topography, placed in the posterior mandible in patients with a history of periodontitis undergoing supportive periodontal care.

Material And Methods: 268 consecutive patients received 755 EHI implants in the mandibular molar region between 2007 and 2015 with the following surface characteristics: 72 turned, 145 hybrids (double acid-etched/turned), and 538 anodized. CBL was yearly evaluated by analysing calibrated digital periapical radiographs, with a follow-up of 1-6 years.

A retrospective study on the crestal bone loss associated with different implant surfaces in chronic periodontitis patients under maintenance.

Objective: To analyze retrospectively interproximal crestal bone loss (CBL) on external-hex "non-identical" (NI) dental implants with different surface topography, when placed in the same intra-oral location in patients with a history of chronic periodontitis following maintenance care.

Material And Methods: The patient population consisted of 206 consecutive patients with a history of chronic periodontitis who underwent implant surgery between 2007 and 2010; 755 NI implants with different implant surfaces were placed at posterior mandibular sites: 72 machined, 145 acid-etched/machined (hybrid), and 538 anodized. Crestal bone loss measurements were carried out analyzing the calibrated digital X-rays taken at 1-year intervals as part of the maintenance program, being the time of this retrospective examination from 1 to 3 years.

Molecular characterization of novel LMW-i glutenin subunit genes from Triticum urartu Thum. ex Gandil.

A high level of genetic diversity was found in LMW-i genes from Triticum urartu, resulting in detection of 11 novel alleles. The variability detected could affect gluten quality. Low-molecular weight glutenin subunits are important in determining the viscoelastic properties of wheat dough.

Allelic diversity and molecular characterization of puroindoline genes in five diploid species of the Aegilops genus.

Grain hardness is an important quality trait in wheat. This trait is related to the variation in, and the presence of, puroindolines (PINA and PINB). This variation can be increased by the allelic polymorphism present in the Aegilops species that are related to wheat.

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.