Technical assessment of shear bond strength at ceramo-alloy interface after various surface treatment combinations and application of metal bonding agent.

Background: Bonding between metal and ceramic is one of the most important aspects of a successful prosthesis. Various methods have been recommended for preparing the metal surface to enhance the bond between metal and ceramic including the use of a metal bonding agent.

Objective: This study aims to evaluate and compare the shear bond strength of the metal-ceramic (M-C) interface after combinations of various surface treatments including the application of a metal bonding agent.

Dimensional Stability of Light-Activated Urethane Dimethacrylate Denture Base Resins.

An accurate and dimensionally stable trial denture base is required for a successful denture. The aim of this in vitro study was to assess the dimensional stability of a light-activated urethane dimethacrylate (UDMA) visible light cure (VLC) denture base with three fabrication techniques and different curing cycles. Forty-five VLC denture base samples were divided evenly into three groups.

Clinical analysis of CAD-CAM milled and printed complete dentures using computerized occlusal force analyser.

Background: Digital complete dentures (CDs) by computer-aided designing and computer-aided manufacturing (CAD-CAM) techniques (milling and three-dimensional (3-D) printing) have been evaluated clinically and provided satisfactory results. But clinical studies assessing occlusal forces by digital dentures are lacking.

Objectives: To compare the occlusal force parameters in complete dentures (CDs) fabricated by milling, 3-D printing and conventional techniques having 3 commonly used occlusal schemes, using computerized occlusal force analysis system (Tech-Scan III- T-Scan III).

Computerized occlusal forces analysis in complete dentures fabricated by additive and subtractive techniques.

Background: Fabrication of complete dentures by computer-aided designing and computer-aided manufacturing (CAD-CAM) techniques are now common. Subtractive and Additive are the two principal CAD-CAM techniques used for this purpose. However, studies that evaluated the occlusal forces by CDs manufactured by these techniques are lacking.

Four narrow dental implants and conventionally cast bar-supported removable hybrid acrylic complete denture as a therapeutic modality for terminal dentition.

The report portrays four narrow implants and cast bar-supported removable hybrid acrylic complete dentures and other terminal dentition treatment options in the maxilla. The therapeutic module could be efficient and satisfactory to patients.

Oral rehabilitation of a cleft palate patient with tooth-supported, telescopic magnetic overdenture.

A 49-year-old male patient with residual cleft palate and missing pre-maxilla presented with an ill-fitting and unaesthetic maxillary denture. The posterior teeth were periodontally sound but crowded and had defective restorations and secondary caries. We restored the bilateral maxillary canines and first premolars with conical telescopic crowns having magnetic keepers.

Predoctoral dental implant education techniques-students' perception and attitude.

Purpose: Dental implant (DI) therapy is in high demand and can only be rendered efficiently to graduating dentists by effective teaching methodologies. This study aimed to assess the perceptions and attitudes of dental graduates towards predoctoral DI education techniques and rehabilitation by DI.

Methods: A total of 26 well-structured questionnaires were distributed to 120 final-year students.

Marginal and internal fit of provisional crowns fabricated using 3D printing technology.

Background: Clinicians routinely provide provisional crowns following teeth preparation. Three-dimensional (3D) printing technology could be used over conventional methods for better fit as lack of adequate fit would result in plaque accumulation, micro-leakage, teeth sensitivity, caries and periodontal diseases.

Objective: The aim of the study was to evaluate the marginal and internal fit of provisional crowns fabricated using 3D printing technology and to compare it with that of compression molding and milling methods.

Implant-supported fixed hybrid acrylic complete dentures opposing fully restored mandibular metal ceramic restorations.

This report presents a full-mouth rehabilitation case. A patient came with a failing dentition in maxilla, and after the treatment, the patient had a shortened full-arch, implant-supported, screw-retained hybrid acrylic complete denture in the maxilla and full-arch metal ceramic restorations in the mandible. The report describes the steps involved in the prosthodontic rehabilitation; a cost-effective treatment plan, the restoration of vertical dimension, an immediate denture, an implant-level impression, a verified-master cast, the fabrication of definitive prosthesis, the occlusal scheme and multiple follow-ups in 6 months.

Hydrophilic titanium surface-induced macrophage modulation promotes pro-osteogenic signalling.

Objectives: As biomaterial-induced modulation of mediators of the immune response may be a potential therapeutic approach to enhance wound healing events, the aim of this study was to delineate the effects of titanium surface modification on macrophage phenotype and function.

Material And Methods: Rodent bone marrow-derived macrophages were polarized into M1 and M2 phenotypes and cultured on micro-rough (SLA) and hydrophilic modified SLA (modSLA) titanium discs. Macrophage phenotype and cytokine secretion were subsequently assessed by immunostaining and ELISA, respectively.

An Evaluation of Fracture Resistance Strength of Different Post Systems in Endodontically Treated Teeth.

Aim: This study aimed to evaluate the fracture resistance strength of different post systems in endodontically treated teeth.

Materials And Methods: Freshly extracted 60 single-rooted first premolars were selected for this study. Conventional step-back technique was used to prepare a canal for all the teeth.

An Study to Compare Location of Neutral Zone Recorded with Two Materials.

Aim: To establish a relationship between the crest of the alveolar ridge and neutral zone and to compare its location recorded by two different material.

Methods And Materials: Thirty subjects were selected, and the location of the neutral zone was compared with the mandibular alveolar ridge crest. For each subject neutral zone was recorded by two different recording materials-Low fusing impression compound and tissue conditioner.

Titanium surface hydrophilicity enhances platelet activation.

Titanium implant surface modification is a key strategy used to enhance osseointegration. Platelets are the first cells that interact with the implant surface whereupon they release a wide array of proteins that influence the subsequent healing process. This study therefore investigated the effect of titanium surface modification on the attachment and activation of human platelets.

The Effect of Platelet Proteins Released in Response to Titanium Implant Surfaces on Macrophage Pro-Inflammatory Cytokine Gene Expression.

Background And Purpose: Platelets are one of the earliest cell types to interact with surgically inserted titanium implants. This in vitro study investigated the effect of titanium surface-induced platelet releasate on macrophage cytokine gene expression.

Materials And Methods: To mimic the in vivo temporal sequence of platelet arrival and protein production at the implant surface and the subsequent effect of these proteins on mediators of the immune response, the levels of platelet attachment and activation in response to culture on smooth polished, sandblasted and acid-etched (SLA), and hydrophilic-modified SLA (modSLA) titanium surfaces were first determined by microscopy and protein assay.

Titanium surface hydrophilicity modulates the human macrophage inflammatory cytokine response.

Increased titanium surface hydrophilicity has been shown to accelerate dental implant osseointegration. Macrophages are important in the early inflammatory response to surgical implant placement and influence the subsequent healing response. This study investigated the modulatory effect of a hydrophilic titanium surface on the inflammatory cytokine expression profile in a human macrophage cell line (THP-1).