نتایج جستجو برای: secondary dentin formation

تعداد نتایج: 820171  

Journal: :Pediatric dentistry 1989
W K Seow K Romaniuk S Sclavos

This study was a histological analysis of 20 primary teeth from 5 patients with 3 clinical grades of vitamin D-resistant rickets (VDRR). The results showed that the degree of globular dentin formation in the histological sections may be graded into Grades I-III in increasing order of severity. In Grade I, the amount of globular dentin was less than 50% of the total dentin thickness, and the int...

Journal: :American journal of dentistry 1988
D H Retief J A O'Brien L A Smith J L Marchman

The development of dentin bonding agents has made the adhesion between composite restorative resins and dentin possible. Laboratory studies involving microleakage and bond strength tests are carried out to predict the longevity of composite resin restorations in the clinical situation. Microleakage at the restoration/tooth interface may result in breakdown at the margins of restorations, the de...

Journal: :Dental materials journal 2007
Mizuho Kusunoki Kazuo Itoh Yutaka Utsumi Hisashi Hisamitsu

The objective of this study was to evaluate the effects of triethylene glycol (TEG) and triethylene glycol monomethacrylate (TEGMA) solutions as dentin primers on dentin bonding. To this end, wall-to-wall polymerization contraction gap width of a resin composite in a cylindrical dentin cavity and shear bond strength to a flat dentin surface were measured. Dentin was pretreated with an experimen...

Journal: :Journal of dental research 2009
A J Goldberg M C Advincula T Komabayashi P A Patel P T Mather D G Goberman R B Kazemi

In situ formation of mineral particles by biocatalysis would be advantageous for occluding dentin tubules to reduce permeability or for sealing of material-tooth interfaces. One approach would require that the peptide-catalyst remain functional on the dentin surface. Based on recent observations of retained activity on other surfaces, we hypothesized that poly(L-lysine) (PLL), an analog of the ...

2014
Nana Han Yong Zheng Ran Li Xianyu Li Mi Zhou Yun Niu Qi Zhang

An intense stimulus can cause death of odontoblasts and initiate odontoblastic differentiation of stem/progenitor cell populations of dental pulp cells (DPCs), which is followed by reparative dentin formation. However, the mechanism of odontoblastic differentiation during reparative dentin formation remains unclear. This study was to determine the role of β-catenin, a key player in tooth develo...

2009

INTRODUCTION ADHESIVE DENTISTRY • Indications for Use of Adhesives • Advantages of Bonding Techniques • Mechanism of Adhesion • Factors Affecting Adhesion ENAMEL BONDING • Steps for Enamel Bonding • Mechanism of Etching DENTIN BONDING • Conditioning of Dentin • Priming of Dentin • Moist vs Dry Dentin DENTIN BONDING AGENT • Mechanism of Bonding • Evolution of Dentin Bonding Agents • Nanofilled B...

Journal: :International journal of applied dental sciences 2022

Objective: The objective of this mini review is to evaluate the age-related changes in dentin and its effect on bonding.Background: Bonding poses a great challenge which can be attributed multifarious including factors such as high organic content dentin, presence dentinal tubules, continuously moist environment due fluid permeability intratubular pressure. bonding becomes more challenging with...

Journal: :Dental materials journal 1989
H Chigira A Manabe K Itoh S Wakumoto T Hayakawa

The efficacy of pretreatment on the dentin surface with an aqueous solution of glyceryl methacrylate (GM) was examined by measuring the wall-to-wall polymerization contraction of a light activated composite in a cylindrical dentin cavity, and by measuring the tensile bond strength to a flat dentin surface. All of the tested dentin surfaces were cleaned with neutralized 0.5 M EDTA and treated wi...

Journal: :Pediatric dentistry 1999
S Shintani A Okamoto I Yoshida-Minami S Sobue T Ooshima

Pediatric Dentistry – 21:2, 1999 Abnormalities of dentin formation have been classified into two large categories: those that are primarily diseases of the dentin itself and those in which the dentin defect accompanies defects in other tissue systems. For example, the former category contains dentin dysplasia types I and II, dentinogenesis imperfecta types II and III and regional odontodysplasi...

Journal: :The journal of contemporary dental practice 2013
Issam Tanios Khalil Tony Sarkis Alfred Naaman

AIM To compare the histomorphological response of rat dental pulps capped with MM-MTA and ProRoot MTA at 1, 2 and 4 weeks postoperatively. MATERIALS AND METHODS Direct pulp capping with MM-MTA and ProRoot MTA, overlaid with light-cured composite resin, was performed on right and left maxillary first molars of 20 Wistar rats. Animals were killed at 1, 2 and 4 weeks postoperatively. Biopsy samp...

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