Introduction: This study aimed to examine the impact of repeated use different implant impression analogs on accuracy resulting impressions. Materials and Methods: Implant bodies from three brands (Group SA: Straumann, Switzerland; Group DA: Dio Implant, South Korea; MA: Mode Turkey) were used create master models. Five reference casts then fabricated for each brand (n=5) these Ten impressions taken cast using same analogs, which sterilized between impression. Both working digitized with a...

Abstract Background : In recent years, glass fibres have been used to strengthen denture base resins. A major difficulty in using reinforcing with multiphase acrylic resins, such as powder liquid is inadequate impregnation of the resin. Methods This investigation examined effect on fracture resistance and flexural strength Eighty identical specimens were formed specially designed moulds accordance manufacturer's recommendations. The four experimental groups prepared these consisted...

To compare the finger pressure applied by dentists during cementation and to examine effect of gender time day on pressure.Fifteen (9 males, 6 females) formed a study group 10 master dies in premolar shape Turcom Cera all-ceramic crowns were prepared measure maximum cementation. The performed total 300 processes. One-way analysis variance independent t tests used evaluate results.A statistically significant difference was found amount (P<.005). However, there no for or according one-way...

Screw loosening is one of the most common mechanical complications within prosthetic components dental implants. Clinicians must know if reverse torque values (RTVs) are affected by contamination implant abutment screw hole with either blood, saliva or chlorhexidine.Forty implants were divided into 4 groups (n = 10). Implants embedded in epoxy resin and placed a digital meter. holes 30 contaminated chlorhexidine (CG), fresh human (SG), blood (BG), remaining noncontaminated screws served as...

The aim of the present study was to evaluate cytotoxic effects three different provisional restoration materials on fibroblasts. Two bis-acrylic based [Tempofit Duomix (Detax), Protemp 3 Garant (3M ESPE)] and one urethan dimethacrylate [Revotek LC (GC Corporation)] used.Materials were prepared according manufacturers' instructions in standard teflon disks (2x5 mm) four samples extracted 7 ml Basal Medium Eagle with 10% new born calf serum 100 mg/ml penicillin/streptomycin for 24 hours. L929...

The effects of desensitizer, disinfectant, saliva, blood, and hydrogen peroxide on the tensile bond strength between adhesive ceramic as well dentin were examined. Sixty 7×3 mm pressed discs IPS e.max fabricated randomly assigned to six groups different surface treatments (control, peroxide). Representative samples fractured specimens observed by SEM (scanning electron microscopy). There significant differences control group (p<0.05). However, there no any other treatment (p>0.05). Results...

The aim of this study was to determine the accuracy casts made from irreversible hydrocolloid impressions with immediate and delayed pouring. A master model mounted on a modified articulator designed standardize impression procedures. total 250 were taken grouped into 25 groups (n = 10) according material (CA37, Tropicalgin, ColorChange, Hydrogum 5, Hydrocolor 5) storage time (0 hours, 1 hour, 24 72 120 hours). Impressions stored at 23 ± 1°C 100% relative humidity poured gypsum predetermined...

The aim of this study was to investigate surface roughness in provisional crown acrylics, after polishing, reinforced with different concentrations glass fibers.A total 48 disk-shaped specimens were prepared using autopolymerizing acrylic resin. These divided into four groups according the level fiber added: Group A (no fiber), B (0.5%), C (1%) and D (2%). After polishing specimens, an average (Ra) value calculated a profilometer from randomly selected points on surface.A significant...

In this study, we have explored the prospect of assessing and following level total denture adaptation by use EMG signals recorded during gum chewing. Total 14 edentulous patients, 6 women 8 men, with an average age 63±9 years, were recruited. Separate recordings obtained from left right temporalis masseter muscles patients for a period 10 seconds, while they chewing sugar-free on their sides. repeated at three times: before, after, six months after placement denture. We tried to standardize...

This study compared the clinical outcomes of 1-year follow-up immediate and late implant loading after restoration a single tooth in anterior maxilla.Thirty-three patients with missing teeth maxilla were included this (18 15 loading). Standard periapical radiographs obtained to evaluate vertical bone loss around implant. For both groups, periimplant parameters (probing depth, gingival bleeding index, index (GI), modified plaque width keratinized gingiva) evaluated.There no significant...

The purpose of this study was to evaluate the effect provisional cement removal by different dentin cleaning protocols (dental explorer, pumice, bur, Er:YAG laser) on shear bond strength between ceramic and dentin.MATERIALS AND METHODS.In total, 36 caries-free unrestored human third molars were selected as tooth specimens.Provisional restorations fabricated cemented with eugenol-free cement.Then, disc-shaped specimens randomly assigned four groups (n = 9).Group 1 (control): Provisional...

Abstract Purpose: This study investigated the effects of different desensitizers and an adhesive material application on pulpal temperature rise during direct provisional restoration polymerization. Materials Methods: Two dentin (Systemp, Ivoclar; BisBlock, Bisco) a (Prime Bond, Dentsply) were applied to surfaces as single layer or double layer. One autopolymerizing methacrylate (Prevision, Heraeus Kulzer) one light polymerizing composite (Revotek LC, GC) materials used in this study. A...

This study compared the esthetic outcomes of 1-year follow-up immediate and late implant loading after restoration a single tooth in anterior maxilla.A total 33 patients with missing teeth maxilla (Central = 8/lateral 22/canine 3) were enrolled this (18 15 loading). At cementation, 1, 3, 6, 12 months photographs taken maxilla. The assessed using pink score (PES) which consists seven variables. All PES data analyzed independent sample t-tests repeated measures ANOVAs.PES values increased...

Amaç: Bu pilot çalışmanın amacı farklı yüzey işlemleri uygulanmış zirkonya yüzeyi ile rezin siman arasındaki sızıntının değerlendirilmesidir

This study is to compare the two different techniques used in labeling of implant-based fixed prostheses, using square code and microchip techniques, taking into account properties an ideal prosthetic technique. Sixty implants prostheses were produced, 30 for each group. Square codes created on lingual bands which are samples group that labelled by code, microchips placed implant abutments with microchip. The thermal cycle test was long-life samples, no deformation found. A survey attended...

This study aimed to investigate the extent which intraoral scanning are affected by clinical conditions, and whether ambient lighting different color temperatures have an impact on accuracy of scanner, as well evaluate time.