نتایج جستجو برای: caries affected dentin

تعداد نتایج: 344689  

Journal: :Dental materials : official publication of the Academy of Dental Materials 2007
Alessandra R Peris Fabio H O Mitsui Maristela M Lobo Ana K B Bedran-russo Giselle M Marchi

OBJECTIVES The present study evaluated the microtensile bond strength and caries formation on adhesive/dentin interfaces before and after dynamic chemical formation of secondary caries. METHODS Restorations were prepared on the dentin surface of 80 bovine incisors using four adhesive systems: two fluoride-free (Single Bond and Clearfil SE Bond) and two fluoride containing (Optibond Solo Plus ...

Journal: :Pediatric dentistry 2000
W K Seow

"Occult" or "hidden" caries refers to occlusal caries which is not diagnosed clinically because the occlusal surface appears ostensibly intact, and radiographs show radiolucencies in dentin. The prevalence of occult caries has been reported to range from 2.2% to over 50% of permanent molars. In spite of its relatively high prevalence, the etiology and pathogenesis of occult caries remain unclea...

BACKGROUND AND AIM: According to the effect of the adhesive and substrate type on the bond strength, examination of the adhesive is required in all aspects. The aim of this study was to evaluate the shear bond strength of different adhesive systems to normal dentin (ND) and caries affected dentin (CAD) in permanent teeth. METHODS: Thirty extracted molars with small occlusal caries were selected...

2015
Solmaz Valizadeh Mostafa Goodini Sara Ehsani Hadis Mohseni Fateme Azimi Hooman Bakhshandeh

BACKGROUND Radiographs, adjunct to clinical examination are always valuable complementary methods for dental caries detection. Recently, progressing in digital imaging system provides possibility of software designing for automatically dental caries detection. OBJECTIVES The aim of this study was to develop and assess the function of diagnostic computer software designed for evaluation of app...

2014
Rene Garcia-Contreras Rogelio Jose Scougall-Vilchis Rosalia Contreras-Bulnes Hiroshi Sakagami Raul Alberto Morales-Luckie Hiroshi Nakajima

BACKGROUND Chemomechanical caries removal system is part of the minimal invasive dentistry; the aim of the study was to compare the amount of bacteria after caries removal with chemomechanical system and conventional rotatory instruments and to test the Vickers microhardness and micro-RAMAN analysis of residual dentin after excavation. MATERIALS AND METHODS Molars were induced for demineraliz...

2014
Mayssam Khaddam Benjamin Salmon Dominique Le Denmat Leo Tjaderhane Suzanne Menashi Catherine Chaussain Gaël Y. Rochefort Tchilalo Boukpessi

UNLABELLED Since Matrix metalloproteinases (MMPs) have been suggested to contribute to dentin caries progression, the hypothesis that MMP inhibition would affect the progression of dentin caries is clinically relevant. Grape seed extracts (GSE) have been previously reported to be natural inhibitors of MMPs. OBJECTIVE To evaluate the capacity of a GSE mouthrinse to prevent the degradation of d...

2015
Duangporn Duangthip Ming Jiang Chun Hung Chu Edward CM Lo

BACKGROUND Untreated dentin caries in primary teeth is commonly found in preschool children worldwide. Recently, the use of simple non-surgical approaches to manage the situation has been advocated. The aim of the study was to systematically review and evaluate the literature on effectiveness of non-surgical methods in arresting or slowing down the progression of active dentin caries in primary...

2011
Vinod Upadhyay TP Chaturvedi RK Pandey Akhilanand Chaurasia Parul Singh

Regional odontodysplasia is a nonhereditary, uncommon developmental abnormality of teeth. Females have more predilections for regional odontodysplasia. The enamel, dentin and pulp of teeth are affected and radiographically, teeth are described as "ghost teeth". Many of these :eeth do not erupt and have an increased risk for caries and periapical inflammation. Since the literature on regional od...

Journal: :Journal of dental research 2002
M Sulkala M Larmas T Sorsa T Salo L Tjäderhane

MMP-20 (enamelysin), the matrix metalloproteinase family member discovered in the enamel organ, has also been detected in odontoblasts during dentin formation. We studied the presence and localization of MMP-20 in mature human teeth in health and disease. In immunohistochemistry, MMP-20-positive staining was observed most intensively in the radicular odontoblastic layer and also in dilated dent...

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