This study compared splinted and non-splinted implant-supported prosthesis with without a distal proximal contact using digital image correlation method. An epoxy resin model was made acrylic replicas of mandibular first premolar second molar threaded implants replacing the molar. Splinted metal–ceramic screw-retained crowns were fabricated loaded presence A single-camera measuring system used to record in-plane deformation on surface at frequency 1.0 Hz under load from 0 250 N. The images...

Abstract Objectives This randomized clinical trial analyzed crestal bone changes and soft tissue dimensions surrounding implants with an internal tapered connection placed in the mandible anterior region at different depths (equicrestal subcrestal). Materials methods Eleven edentulous patients (five per patient) were randomly divided a split‐mouth design: G1, 28 equicrestal implants; G2, 27 subcrestal implants. All immediately loaded. Correlation between keratinized width ( KTW ) vertical...

This clinical report describes how to achieve predictable outcomes for anterior teeth esthetic restorations with porcelain laminate veneers by associating the digital planning and design of restoration interim restorations. The previous smile eliminates communication barrier patient assists clinician throughout treatment. Interim (diagnostic mock-ups) further enhance prevent unnecessary tooth reduction conservative preparation. Adequate between contributes successful definitive satisfaction...

This study aimed to verify the effect of modified section method and laser-welding on accuracy fit ill-fitting commercially pure titanium (cp Ti) Ni-Cr alloy one-piece cast frameworks. Two sets similar implant-supported frameworks were constructed. Both groups six 3-unit fixed partial dentures as [I: (control) II: cp Ti] evaluated for passive fitting in an optical microscope with both screws tightened only one screw tightened. All then sectioned diagonal axis at pontic region (III: IV: Ti)....

This in vivo study evaluated the osteogenic potential of two proteins, recombinant human bone morphogenetic protein-2 (rhBMP-2) and a protein extracted from natural latex (Hevea brasiliensis, P-1), compared their effects on defects when combined with carrier or collagen gelatin. Eighty-four (84) Wistar rats were divided into groups, without use gelatin, each these six treatment groups seven animals each. The were: (1) 5 microg pure rhBMP-2; (2) rhBMP-2/monoolein gel; (3) monoolein (4) P-1;...

Abstract Background The biomechanical behavior of implant‐supported titanium and zirconia full‐arch fixed dental prosthesis (FAFDP) frameworks require further investigation. Purpose Strains transferred by (Ti) (Zr) FAFDP were analyzed. Materials Methods Maxillary 14‐unit FAFDPs supported 6 implants 12‐unit 4 tested. One‐piece fabricated computer‐aided design/computer‐aided manufacturing. Four groups divided ( n = 3): G1, Ti‐6 implants; G2, Zr‐6 G3, Ti‐4 G4, Zr‐4 implants. A 250 N...

Abstract Objectives This randomized controlled trial used resonance frequency analysis ( RFA ) to assess the effects of presence or absence a cast rigid bar splinting multiple implants in stability immediately loaded implants. Material and Methods Twenty‐nine edentulous patients were randomly divided into two groups: G1 with full‐arch implant‐fixed prostheses G2 implant via acrylic resin denture bases. All loaded. measurements assessed at three different times (T0 – baseline, T1 4 months, T2...

This study compared the vertical microgaps of milled zirconia and cobalt-chromium (Co-Cr) implant-supported fixed dental prosthesis frameworks to those seen in one-piece cast with different techniques.Two threaded implants were used simulate rehabilitation a maxillary partially edentulous space from second premolar molar. Three-unit screw-retained prosthetic fabricated divided into following groups (n = 10 each group): 1 Co-Cr using burnout cylinders; 2 cast-on 3 passive fitting technique; 4...

Objectives The aim of this study was to compare the stresses resulting from cemented or screw-retained dental prostheses using universal cast long abutment by photoelastic method. Material and Methods A resin model fabricated simulate a segment mandibular arch with replicas first premolar second molar, two 3.75 × 11-mm implants replacing molar. Vertical static loads were individually applied on occlusal surface molar (5 kgf) simultaneously both crowns (10 kgf). Results found variable stress...

The aim of this study was to compare the accuracy fit three types implant-supported frameworks cast in Ni-Cr alloy: specifically, a framework as one piece compared separately sections transverse or diagonal axis, and later laser welded.Three sets similar were constructed. first group six 3-unit piece, second sectioned axis pontic region prior casting, last casting. positioned matrix (10 N.cm torque) welded. To evaluate passive fit, readings made with an optical microscope both screws...

There is no consensus in literature regarding the best plan for prosthetic rehabilitation with partial multiple adjacent implants to minimize stress generated bone-implant interface. The aim of this study was evaluate biomechanical behavior cemented fixed dentures, splinted and nonsplinted, on Morse taper different types coating material (ceramic resin), using photoelastic analysis. A model an interposed edentulous space, missing a second premolar first molar, rehabilitated 4 crowns...

ABSTRACT Objective: The purpose of this study was to evaluate the mechanical behavior two different straight prosthetic abutments (one- and two-piece) for external hex butt-joint connection implants using three-dimensional finite element analysis (3D-FEA). Materials Methods: Two 3D-FEA models were designed, one two-piece abutment (2 mm in height, mini-conical abutment, Neodent) another one-piece Slim Fit Neodent), with their corresponding screws (Titamax Ti, 3.75 diameter by 13 length,...

Primary and secondary stabilities of immediately loaded mandibular implants restored with fixed prostheses (FP) using rigid or semi-rigid splinting systems were clinically radiographically evaluated.Fifteen edentulous patients rehabilitated hybrid FP; each had 5 placed between the mental foramens. Two groups randomly divided: group 1-FP conventional bar 2-semi-rigid cantilever extension system titanium bars in 2 distal abutment cylinders. stability was evaluated resonance frequency analysis...

Adequate passive-fitting of one-piece cast 3-element implant-supported frameworks is hard to achieve.This short communication aims present an alternative method for section and casting frameworks.MATERIALS AND METHODS.Three-unit nickel-chromium (Ni-Cr) were tested vertical misfit (n = 6).The as (Group A) later transversally sectioned through a diagonal axis B) compared that diagonally separated C).All laser welded.Only one side the was screwed.RESULTS.The results on tightened significantly...

Objective: This retrospective study evaluated the use of a single miniplate for treatment mandibular angle fractures (MAF). Methods: Fifty patients with 53 MAF were treated by open reduction and internal fixation analyzed in this study. Results: Five had postoperative complications that required additional procedures. Three infection, one patient complained malocclusion first week, exposure three months after surgery. Every procedure was performed office under local anesthesia without...