Evaluation of fracture resistance of inlay-retained fixed partial dentures fabricated with different monolithic zirconia materials.

Statement Of Problem: Data are lacking on the fracture resistance of monolithic zirconia inlay-retained fixed partial dentures as a conservative treatment for a single missing tooth.

Purpose: The purpose of this in vitro study was to evaluate the fracture resistance of inlay-retained fixed partial dentures produced from 3 different monolithic zirconia materials and based on 2 preparation types and applications with and without thermocycling.

Material And Methods: A model with missing right and left mandibular first molars was used for different cavity preparations.

Effects of coating with different ceromers on the impact strength, transverse strength and elastic modulus of polymethyl methacrylate.

The aim of this study was to evaluate the mechanical properties of polymethyl methacrylate (PMMA) after coating with different ceromers. For transverse strength and modulus of elasticity tests, specimens of 65×10×2.5 mm dimensions were prepared (5 groups, n=10).

Evaluation of "all-on-four" concept and alternative designs with 3D finite element analysis method.

Purpose: The aim of the present study was to evaluate the effect of the forces on the implant and supporting alveolar ridge in "all on four" concept and alternative designs using finite element analysis.

Materials And Methods: Different treatment alternatives with various implant designs were performed in an edentulous mandible. In Design 1, implants were placed according to "All-on-Four" concept; Design 2, two long (13 mm long, 4 mm diameter) and two short (7 mm long, 4 mm diameter) implants; Design 3, four long and two short implants; and Design 4, two long and four short implants were placed vertically.

The effects of therapeutic x-ray doses on mechanical, chemical and physical properties of poly methyl methacrylate.

Aim: The aim of this study was to investigate the effect of radiation doses very close to the human dose for oral cancers on mechanical, chemical and physical properties for poly methyl-methacrylate (PMMA).

Methods: PMMA samples were divided into four different groups: no irradiated group, 25-Gy irradiated group, 50-Gy irradiated group and 75-Gy irradiated group. Each group contained nine samples.

Histopathological evaluation of the effects of fiber reinforced acrylic resins on living tissues.

Objective: The aim of this study was the histopathological evaluation of the effects of the fiber reinforced acrylic resins on living tissues.

Materials And Methods: The study was performed on 21 rabbits. Three groups, each including seven subjects, were formed.

Prevalence of respiratory abnormalities and pneumoconiosis in dental laboratory technicians.

A preventable occupational disease, pneumoconiosis that is often widespread on to a very kind of quartz, carbon and metal dust exposed work place.The data for the prevalence of pneumoconiosis and respiratory findings among dental laboratory technician is insufficient. The aim of this study is to determine the prevalence of pneumoconiosis and respiratory findings among dental laboratory technicians, working in province of Sivas.

The effect of personality type on denture satisfaction.

Purpose: The aim of this study was to determine the correlation between personality type and denture satisfaction of totally and partially edentulous patients.

Materials And Methods: Two hundred thirty-nine patients (107 women and 132 men) aged 31 to 78 years (mean, 51.87) using removable dentures (165 maxillary and mandibular partial, 51 maxillary and mandibular complete, and 23 maxillary complete and mandibular partial) were asked to fill out a questionnaire on their satisfaction with their dentures with regard to esthetics, speaking ability, and masticatory function.

Penetration depth of laser Doppler flowmetry beam in teeth.

Objective: The aim of this study was to determine the penetration depth of laser light in teeth for contact and noncontact probe tip.

Study Design: Fifty-one freshly extracted human mature maxillary and mandibular single rooted teeth were selected for the study. A laser Doppler flowmeter was used as a laser source.

Effect of gingiva on laser doppler pulpal blood flow measurements.

The purpose of this study was to evaluate the effect of labial and palatinal gingiva on laser Doppler pulpal blood flow measurements. Twenty upper central incisor teeth determined to be vital from 20 volunteers were included into the study. To stabilize the probe, a laboratory-made acrylic splint positioned the probe labially on the cervical third of the tooth crown.

The effect of glass fiber distribution on the transverse strength and surface smoothness of two denture resins.

The aim of this study was to evaluate the effect of glass fiber distribution on the transverse strength and surface smoothness of conventional heat cured acrylic and autopolymerizing acrylic of an injection-molding system. Forty rectangular (65x10x2.5 mm) acrylic test specimens were prepared from both acrylic types: 10 with 5% (w/w) 6 mm length fiber and 10 without fiber for both groups.