Evaluating the precision and accuracy of digital dental models with a low-cost structured light device.

Objective: This study evaluated the accuracy and precision of digital models acquisition using a home-built, low-cost scanning system based on the structured light method.

Methods: a plaster model (PM) was scanned using the experimental device (SL) and a dental desktop scanner (DS). The teeth dimensions of PM and SL models were measured in triplicate, with a caliper and digitally, respectively.

Chitosan-Calcium Aluminate as a Cell-homing Scaffold: Its Bioactivity Testing in a Microphysiological Dental Pulp Platform.

models of the dental pulp microenvironment have been proposed for the assessment of biomaterials, to minimise animal use in operative dentistry. In this study, a scaffold/3-D dental pulp cell culture interface was created in a microchip, under simulated dental pulp pressure, to evaluate the cell-homing potential of a chitosan (CH) scaffold functionalised with calcium aluminate (the 'CHAlCa scaffold'). This microphysiological platform was cultured at a pressure of 15 cm HO for up to 14 days; cell viability, migration and odontoblastic differentiation were then assessed.

Assessment of the regenerative potential of macro-porous chitosan-calcium simvastatin scaffolds on bone cells.

This study evaluated the bioactive potential of a macro-porous chitosan scaffold incorporated with calcium hydroxide (CH-Ca) and functionalized with bioactive doses of simvastatin (SV) for bone tissue regeneration. Initially, the bioactive dose of SV in osteoblastic cells (SAOS-2) was determined. For the direct contact experiment, SAOS-2 cells were plated on scaffolds to assess cell viability and osteogenic differentiation.

The Evaluation of Preosteoblast Migration From 3-D-printed Scaffolds to Decontaminated Smooth and Minimally Rough Titanium Surfaces: A Pilot Study.

evaluations are essential to gaining a better understanding of re-osseointegration, while reducing animal use and the overall costs of peri-implantitis studies. This pilot study evaluated preosteoblast migration from 3-D-printed scaffolds to decontaminated titanium microimplants, creating a system that tries to mimic the bone-implant interface. Smooth (S) and minimally rough (R) titanium microimplants were incubated in cultures and divided into six groups according to the decontamination protocol applied: EDTA gel (EDTA); chlorhexidine (CHL); chlorhexidine-soaked gauze (GCHL); scaling (SC); titanium brush (TiB); and implantoplasty (IP).

The influence of implant surface roughness on decontamination by antimicrobial photodynamic therapy and chemical agents: A preliminary study in vitro.

Background: The aim of this preliminary study was to analyze the effectiveness of three different protocols of decontamination on five commercial moderate rough implants.

Material And Methods: The types of implants investigated were: Neoporos Drive CM (CM; Neodent®), Drive CM Acqua (ACQ; Neodent®), SLActive (SLA; Straumann®), Osseotite (OT; Biomet 3i®) and Nanotite (NT; Biomet 3i®). Implant surface properties (n = 2/type of implant; control groups) were analyzed by scanning electron microscopy (SEM) images to determine surface roughness parameters (SRP) and energy disperse X-ray spectrometry to determine the chemical composition.

Clinical outcomes of root coverage with subepithelial connective tissue graft according to site specific factors - longitudinal retrospective clinical study.

Objectives: This study investigated these possible correlations by a retrospective evaluation of patients with multiple GR treated with SCTG + CAF after 12 months postoperatively.

Methods: Data were collected before surgery and at 6- and 12-month follow-up related to depth (RD) and width (RW) of GR, width (KTW) and thickness (KTT) of keratinized tissue, bone dehiscence (BD), vertical (VC) and Additionally, data on the technique employed, Miller classification of GR and location of GR were analyzed. The values were described as means and standard deviations, and the variations of parameters were assessed by ANOVA for repeated measures and Tukey test or paired t test.