Titanium versus ceramic implants for overdentures: a meta-analysis of prospective studies.

The aim of this study was to compare the use of titanium and ceramic implants for overdentures in terms of their failure rates, surface treatments, and marginal bone loss (MBL). The literature was searched using the PubMed, Scopus, and Cochrane databases up to October 2019. Clinical studies in which ceramic and titanium implants for overdentures were compared in terms of their failure rates, surface treatments, and MBL were included in the meta-analysis.

Stress Distribution in an Implant-Supported Mandibular Complete Denture Using Different Cantilever Lengths and Occlusal Coating Materials.

Purpose: The aim of this study was to assess stress distribution in the bone-implant interface of a mandibular implant-supported prosthesis with different cantilever lengths, aesthetic coating materials, and implant abutments.

Materials And Methods: A photoelastic model of an edentulous mandible, containing 5 external hexagon implants, was constructed. Experimental models were divided into 6 groups: group 1-UCLA component and metal bar; group 2-UCLA component and acrylic resin coating; group 3-UCLA component and porcelain coating; group 4-abutment and metal bar; group 5-abutment and acrylic resin coating; and group 6-abutment and porcelain coating.

Biocompatibility of primers and an adhesive used for implant-retained maxillofacial prostheses: An in vitro analysis.

Statement Of Problem: Implant-retained maxillofacial prostheses should be biocompatible, regardless of the primers and adhesives used to bond the acrylic resin and facial silicone. The authors are unaware of any study evaluating the influence of these primers and adhesives on the biocompatibility of maxillofacial prostheses.

Purpose: The purpose of this in vitro study was to evaluate the cytotoxic effect of primers and an adhesive used to bond acrylic resin and facial silicone during the fabrication of implant-retained maxillofacial prostheses.

In vitro analysis of different properties of acrylic resins for ocular prosthesis submitted to accelerated aging with or without photopolymerized glaze.

The effect of a photopolymerized glaze on different properties of acrylic resin (AR) for ocular prostheses submitted to accelerated aging was investigated. Forty discs were divided into 4 groups: N1 AR without glaze (G1); colorless AR without glaze (G2); N1 AR with glaze (G3); and colorless AR with glaze (G4). All samples were polished with sandpaper (240, 600 and 800-grit).

Toxicity analysis of ocular prosthesis acrylic resin with or without pigment incorporation in human conjunctival cell line.

The aim of this study was to evaluate the influence of pigment incorporation on the cytotoxicity of ocular prosthesis N1 color acrylic resin. Nine samples were manufactured by heat-polymerization in water bath and divided into 3 groups: acrylic resin without pigment incorporation (group R), acrylic resin with pigment incorporation (group RP), and acrylic pigment (group P). Eluates formed after 72h of sample immersion in medium were incubated with conjunctival cell line (Chang conjunctival cells) for 72h.

Effect of different methods of polymerizing ocular prosthesis acrylic resin on a human conjunctival cell line.

Statement Of Problem: Ocular prosthesis acrylic resins should be biocompatible regardless of the polymerization method. The authors are unaware of a study that evaluated the biocompatibility of ocular prostheses.

Purpose: The purpose of this in vitro study was to evaluate the cytotoxicity of different methods of polymerizing ocular prosthesis acrylic resin.

Influence of colorant solutions in properties of indirect resin composites.

Purpose: To evaluate the influence of colorant solutions on color stability and surface roughness of indirect resin composites submitted to prior immersion in mouthwashes.

Methods: Five brands of indirect resin composites were assessed: Adoro, Resilab, Cristobal, Sinfony and Epricord. The specimens were immersed in five different solutions (n = 10): four mouthwashes (Listerine, Oral-B, Plax, Periogard) and artificial saliva (control).

Is the internal connection more efficient than external connection in mechanical, biological, and esthetical point of views? A systematic review.

Purpose: This systematic review aimed to evaluate if the internal connection is more efficient than the external connection and its associated influencing factors.

Methods: A specific question was formulated according to the Population, Intervention, Control, and Outcome (PICO): Is internal connection more efficient than external connection in mechanical, biological, and esthetical point of views? An electronic search of the MEDLINE and the Web of Knowledge databases was performed for relevant studies published in English up to November 2013 by two independent reviewers. The keywords used in the search included a combination of "dental implant" and "internal connection" or "Morse connection" or "external connection.

The importance of the lifelike esthetic appearance of all-ceramic restorations on anterior teeth.

The success of rehabilitation will not depend on just clinical procedures. A proper dental technique (ceramist) is required as well as the respect for some biomimetic principles to obtain the desired final result. This study has the purpose of describing a prosthetic rehabilitation with laminate veneers and all-ceramic crowns of a patient unsatisfied with a previous esthetic treatment because of the negligence of some biomimetic principles.

Surface characterization of lithium disilicate ceramic after nonthermal plasma treatment.

Statement Of Problem: Surface transformation with nonthermal plasma may be a suitable treatment for dental ceramics, because it does not affect the physical properties of the ceramic material.

Purpose: The purpose of this study was to characterize the chemical composition of lithium disilicate ceramic and evaluate the surface of this material after nonthermal plasma treatment.

Material And Methods: A total of 21 specimens of lithium disilicate (10 mm in diameter and 3 mm thick) were fabricated and randomly divided into 3 groups (n=7) according to surface treatment.

Acyclovir plus CMV immunoglobulin prophylaxis and early therapy with ganciclovir are effective and safe in CMV high-risk renal transplant pediatric recipients.

Cytomegalovirus (CMV) infection is still a major cause of morbidity in high-risk renal transplant recipients. In the present report, we have reviewed our records of renal transplant pediatric recipients (RTPR; mean age 14.1 +/- 4.