Clinical and radiographic outcomes of a two-piece ceramic implant: one year results from a prospective clinical trial.

Objective: To describe the clinical and radiographic performance and survival rate of a new two-piece ceramic implant system after at least 12 months of follow-up.

Materials And Methods: Sixty-five implants were placed and followed up for at least 12 months (12.3 ± 1.

Noncarious cervical lesions: Response from a 25-year clinical follow-up study.

Statement Of Problem: The etiology and diagnosis of noncarious cervical lesions (NCCLs) remain poorly understood.

Purpose: The purpose of this clinical study was to examine NCCL progression in an existing group of participants, establish the incidence of new NCCLs in a 25-year follow-up study, and relate them to possible risk factors, including occlusal factors.

Material And Methods: Thirty-three participants who had completed a questionnaire about their habits, diet, and personal information were evaluated in this observational retrospective study.

Filling Materials Efficacy on Preventing Biofilm Formation Inside Screw Access Channels of Implant Abutments.

The choice of the material used to fill screw access channels in implant-supported prostheses depends, in most cases, on operator's preference, without considering the susceptibility of biofilm colonization. Therefore, the aim of this study was to determine and compare the total amount of biofilm formed on different materials used to fill screw access channels in implant abutments. For this propose, titanium implant analogs were attached on abutments and divided into 5 groups: positive control (no filling material); negative control (closed with resin); and filled with cotton, gutta-percha, or polytetrafluoroethylene (PTFE).

Peri-Implant Surgical Treatment Downregulates the Expression of sTREM-1 and MMP-8 in Patients with Peri-Implantitis: A Prospective Study.

sTREM-1 and its ligand PGLYRP1 play an essential role in the inflammatory process around teeth and implants. In this study, we aimed to evaluate the impact of peri-implant treatment on the salivary levels of the sTREM-1/PGLYRP-1/MMP-8 axis after 3 months. A total of 42 participants (with a mean age of 61 years old ± 7.

Peri-implant treatment reduces the salivary levels of Colony stimulator factor-1 and S100A8/A9.

This study evaluated the impact of peri-implant treatment in the salivary levels of Colony stimulator factor -1 (CSF-1), S100A8/A9 and S100A12 in patients having mucositis or peri-implantitis. As a secondary aim, we analysed the correlation between the salivary and peri-implant crevicular fluid (PICF) levels. Forty-seven patient, 27 having mucositis (mean age 63.

Bacterial Profile and Radiographic Analysis Around Osseointegrated Implants With Morse Taper and External Hexagon Connections: Split-Mouth Model.

The aim of this clinical study was to evaluate bacterial colonization, marginal bone loss, and optical alveolar density in implants with Morse taper (MT) and external hexagon (EH) connections. Thirty-five implants were installed in 7 patients (mean age: 65.8 ± 6.

The modulation of the TREM-1/PGLYRP1/MMP-8 axis in peri-implant diseases.

Objectives: The aim of this study is to investigate the expression of sTREM-1 and its ligand PGLYRP1, as well as the expression of MMP-8 and its inhibitor TIMP-1, in peri-implant diseases. As a secondary aim, we analyzed the influence of the concomitant existence of periodontitis in the expression of these biomarkers.

Materials And Methods: This study included 77 patients (29 males and 48 females; mean age 55.

Th17-related cytokines in mucositis: is there any difference between peri-implantitis and periodontitis patients?

Objective: This study aimed to compare Th17-related cytokines named IL-1β, IL-4, IL-6, IL-10, IL-17A, IL-17F, IL-21, IL-22, IL-23, IL-25, IL-31, IL-33, IFN-γ, sCD40L and TNF-α in peri-implant fluid (PIF) from mucositis sites in patients having either peri-implantitis, periodontitis or without interproximal alveolar bone loss.

Material And Methods: Thirty-three patients diagnosed with peri-implant mucositis were divided into three groups: individuals with peri-implant mucositis but without any signs of interproximal alveolar bone loss (group 1, n = 10), individuals with peri-implantitis (group 2, n = 14) and individuals with periodontitis (group 3, n = 9). Probing depth (PD), clinical attachment level (CAL), visible plaque index and bleeding on probing were measured.

Osseointegrated implants placed at supracrestal level may harbour higher counts of A. gerencseriae and S. constellatus - a randomized, controlled pilot study.

Purpose: This study aimed at evaluating the bacterial colonization in dental implants inserted in the crestal or supracrestal position and correlated it to radiographic bone measurements.

Methods: Thirty-five implants with regular platform in nine patients (mean age 62.4±11.

Torque removal evaluation of prosthetic screws after tightening and loosening cycles: an in vitro study.

Objectives: The aim of this study was to evaluate the variation in removal torque of implant prosthetic abutment screws after successive tightening and loosening cycles, in addition to evaluating the influence of the hexagon at the abutment base on screw removal torque.

Material And Methods: Twenty hexagonal abutments were tightened to 20 regular external hex implants with a titanium alloy screw, with an insertion torque of 32 N cm, measured with a digital torque gauge. The implant/abutment/screw assemblies were divided into two groups: (1) abutments without hexagon at the base and (2) abutments with a hexagon at the base.