نتایج جستجو برای: secondary dentin formation

تعداد نتایج: 820171  

Journal: :European journal of paediatric dentistry : official journal of European Academy of Paediatric Dentistry 2013
C Perugia E Ferraro R Docimo

AIM At present, two different clinical procedures to ensure the adherence of indirect tooth restorations to the dental tissues are available: a traditional method based on a delayed dentin sealing (DDS) and an innovative approach that contemplates an immediate dentin sealing (IDS). In this study the authors highlight the advantages of the latter method (IDS), decribing the operating phases of t...

2017
Jörg Neunzehn Sandra Pötschke Christian Hannig Hans-Peter Wiesmann Marie-Theres Weber

BACKGROUND The revitalization or regeneration of the dental pulp is a preferable goal in current endodontic research. In this study, human dental pulp cell (DPC) spheres were applied to human root canal samples to evaluate their potential adoption for physiological tissue-like regeneration of the dental root canal by odontoblastic differentiation as well as cell-induced mineral formation. MET...

Journal: :Compendium of continuing education in dentistry 2013
Gregg A Helvey

As dental material science and technology rapidly evolve and enable dentists to render more efficient treatment, an old challenge persists--preventing the formation of secondary caries at the restorative margin. Research has indicated that the existence of an acid-base resistant zone (ABRZ), which forms between the adhesive layer and the tooth, may have a preventive effect. The ABRZ is also kno...

2017
Ayca Yilmaz Dilek Helvacioglu-Yigit Cansu Gur Handan Ersev Gullu Kiziltas Sendur Egemen Avcu Canan Baydemir Paul Vincent Abbott

The purpose of this study was to compare the incidence and longitudinal propagation of dentin defects after gutta-percha removal with hand and rotary instruments using microcomputed tomography. Twenty mandibular incisors were prepared using the balanced-force technique and scanned in a 19.9 μm resolution. Following filling with the lateral compaction technique, gutta-percha was removed with Pro...

2013

The aim of this study was to examine the effect of Biodentine® and two new nanostructured materials based on active silicate cements on exposed tooth pulp of Vietnamese pigs. The study comprised 40 teeth in two Vietnamese pigs (24 months old). After class V cavity preparation, the pulp on each tooth was exposed using a small round bur. The following materials were applied on pulp exposures: Bio...

Journal: :The International journal of oral & maxillofacial implants 2002
Su-Gwan Kim Chae-Heon Chung Young-Kyun Kim Joo-Cheol Park Sung-Chul Lim

PURPOSE To evaluate the effect of particulate dentin-plaster of Paris with and without platelet-rich plasma (PRP) on bone healing and new bone formation around titanium dental implants in a canine model. Histologic sections and histomorphometric analysis of the defects were obtained at 6 and 12 weeks after surgery. MATERIALS AND METHODS Three circular bone defects were surgically prepared in ...

مروتی, سعید, ناصری, فرنوش,

Dentinogenesis imperfecta (DI) is an inherited disorder affecting dentin. Defective dentin formation results in discolored teeth that are prone to attrition and fracture. Mutation in dentin and the main gene in this disease is DSPP. Heterozygous mutations in this gene cause tooth sialophosphoprotein (DSPP) causes dentin disorders DI I and II. Imperfecta is a dominant autosomal trait that affec...

Journal: :Dental materials journal 2006
Mirela Sanae Shinohara Monica Yamauti Go Inoue Toru Nikaido Junji Tagami Marcelo Giannini Mario Fernando de Goes

This study evaluated the influence of a fluoride-containing adhesive on microtensile bond strength (microTBS) to dentin, as well as analyzed the dentin-adhesive interface after acid-base challenge. Experimental groups were: G1--Clearfil SE Bond control (SE); G2--Clearfil Protect Bond control (PB); G3--Primer[SE]/Adhesive[PB]; G4--Primer[PB]/Adhesive[SE]. For microTBS evaluation, dentin surfaces...

2014
Sowmya Nettem Sunil Kumar Nettemu K. Basha S Venkatachalapathi

Dentin dysplasia is an exceptionally rare, autosomal-dominant, hereditary condition, primarily characterized by defective dentin formation affecting both the deciduous and permanent dentitions. The etiology remains imprecise to date, in spite of the numerous hypotheses put forward and the constant updates on this condition. This case report of type I dentin dysplasia exhibits radiographic findi...

Journal: :International journal of clinical and experimental pathology 2013
Maria Alzira Cavacas Vitor Tavares Maria João Oliveira Pedro Oliveira Ana Sezinando José Martins dos Santos

Chronic exposure to Industrial Noise (IN), rich in Low Frequency Noise (LFN), causes systemic fibrotic transformation and sustained stress. Dental wear, significantly increased with exposure to LFN, affects the teeth particularly through the circumpulpar dentin. Our goal is to understand the consequences of IN exposure on the circumpulpar dentin of Wistar rats. 10 Wistar rats were exposed to IN...

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