نتایج جستجو برای: tooth strength

تعداد نتایج: 293353  

2017
Ahmed Hosny Elkhadem

Dental caries has been considered as a historically important component of the global oral disease burden. Thus, the quest for an ideal restorative material with optimum physical properties and durability exists. There was a lack of availability and development in the field of restorative materials. Though amalgam has many drawbacks, such as postoperative tooth sensitivity, susceptibility to fr...

2013
PR Pradeep VC Sunil Kumar Sunil Rao Bantwal Gurinderjeet Singh Gulati

1Professor, Department of Conservative Dentistry & Endodontics, M R Ambedkar Dental College and Hospital, Bangalore, Karnataka, India; 2Professor, Department of Conservative Dentistry and Endodonics, Bhabha College of Dental Sciences, Bhopal, Madhya Pradesh, India; 3Professor, Department of Conservative Dentistry and Endodonics, R K D F Dental College, Bhopal, Madhya Pradesh, India; 4Reader, De...

2018
Jumpei SUGIZAKI Makoto MORIGAMI Shigeru UNO Toshimoto YAMADA

restorations were assessed using modified RygefUSPHS criteria, Subsequently, restorations were evuluated at recall intervals up to 18 months. Additionally, the measurement of tensile bond strength and the FE-SEM observation of resin-tooth interface were performed in vitro. At 18 months, all restorations were classified as clinically satisfactery and assignecl with an Alpha rating. Tensile bond ...

Journal: :The Journal of prosthetic dentistry 1988
A H Tjan D L Morgan

This study compared the flexural strengths and bond strengths to dentin and enamel of two brands of silver-reinforced glass ionomers with their respective unfilled glass-ionomer cements for luting. The results led to the following conclusions. 1. No significant differences in bond strengths to tooth substrates were recorded between silver-reinforced and unfilled glass ionomers. 2. Although the ...

Journal: :Buildings 2023

Damage of high-strength bolt (DHSB) is inevitable during long-term use. Such damage irreversible that may not be replaced in time, and the potential danger proven by changes mechanical properties DHSB. To investigate DHSB, this paper uses software ABAQUS to simulate stress various types DHSB under earthquake, compares with undamaged bolts (UDHSB). The results show most unfavorable position crac...

Journal: :Journal of morphology 2006
Alistair R Evans Gordon D Sanson

The interaction between the two main competing geometric determinants of teeth (the geometry of function and the geometry of occlusion) were investigated through the construction of three-dimensional spatial models of several mammalian tooth forms (carnassial, insectivore premolar, zalambdodont, dilambdodont, and tribosphenic). These models aim to emulate the shape and function of mammalian tee...

ژورنال: مجله دندانپزشکی 2015
خسروانیان, محدثه , دانش کاظمی, علیرضا , داوری, عبدالرحیم , یاسایی, صغری ,

  Background and Aims: Orthodontic bracket failure during treatment is a common problem. With the introduction of low shrinkage composites the question is that whether: this sufficient has coefficient bond strength for bonding bracket during orthodontic treatment. The aim of this study was to compare the shear bond strength (SBS) of silorane-based and metacrylate-based composites to metal brack...

Journal: :The European Journal of Orthodontics 2008
Bora Öztürk Sıddık Malkoç Alp Erdin Koyutürk Bülent Çatalbaş Füsun Özer

The aim of this investigation was to evaluate the effects of different tooth types on the shear bond strength (SBS) of two orthodontic resin adhesive systems in vitro. Two hundred extracted sound human teeth were used in the study. Ten teeth of each tooth type were the mounted in acrylic resin leaving the buccal surface of the crowns parallel to the base of the moulds. In each experimental grou...

Journal: :Texas dental journal 2007
Howard Strassler

periodontal disease, or endodontic failure is a true esthetic emergency for a patient. A missing anterior tooth has implications for how we present ourselves to others and affects how we feel about ourselves. If the tooth or tooth crown is still intact and the patient brings it with them to the dental office, it is easiest to use it as a natural tooth pontic, joining it to the adjacent teeth wi...

2016
Mahshid Mohammadi Bassir Mohammad Bagher Rezvani Elham Tabatabai Ghomsheh Zahra Malek Hosseini

OBJECTIVES This study aimed to determine the effect of surface treatments such as tooth reduction and extending the etching time on microtensile bond strength (μTBS) of composite resin to normal and fluorotic enamel after microabrasion. MATERIALS AND METHODS Fifty non-carious anterior teeth were classified into two groups of normal and fluorotic (n=25) using Thylstrup and Fejerskov index (TFI...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید