نتایج جستجو برای: dental pulp necrosis
تعداد نتایج: 264960 فیلتر نتایج به سال:
OBJECTIVES/HYPOTHESIS Bony manipulation near the nasal spine or maxillary crest trimming can predispose teeth to injury during septorhinoplasty, especially when there is an aberrant vascular supply or a highly situated root apex in the premaxilla. STUDY DESIGN Prospective cross-sectional study. METHODS A prospective cross-sectional study was carried out on 438 teeth (maxillary incisors and ...
INTRODUCTION Over the past century, the dental literature has consistently reflected a controversy related to the effect of periodontal disease on the dental pulp. Nonetheless, practitioners are of the opinion that teeth having deep periodontal pockets show variable pulpal response, which may necessitate root canal treatment. Thus, this study aimed to evaluate the changes in pulp due to advance...
Tooth avulsion is one of the most complicated dental traumatic injuries. Pulp necrosis and root resorption are the most common complications resulting from avulsion. External root resorption following tooth replantation can be inflammatory or replacement resorption (ankylosis). This report presents the treatment of progressive external root resorption on a permanent maxillary left central incis...
INTRODUCTION Pulpal reactions after acute dental injury have been puzzling for many clinicians. The management of dental trauma and an understanding of clinical and treatment factors in outcomes arose from multivariate statistical analyses of archive material from Copenhagen. METHODS The aim of this article was to review the works of this period with respect to pulpal reaction after acute mec...
OBJECTIVE This study evaluated the presence of microorganisms and analyzed microscopically the pulp of 20 traumatized human teeth with intact crowns and clinical diagnosis of pulp necrosis, based on the association of at least three of the clinical criteria: crown discoloration, negative response to thermal and electric pulp vitality tests, positive response to vertical and horizontal percussio...
Lipopolysaccharide exerts many effects on many cell lines, including cytokine secretion, and cell apoptosis and necrosis. We investigated the in vitro effects of lipopolysaccharide on apoptosis of cultured human dental pulp cells and the expression of Bcl-2 and Bax. Dental pulp cells showed morphologies typical of apoptosis after exposure to lipopolysaccharide. Flow cytometry showed that the ra...
AIM To analyse the gene expression of tumour necrosis factor-alpha (TNF-alpha) in human dental pulps, under normal and inflammatory conditions and to examine the association between any observed alterations in the expression of this cytokine with the severity of the clinical symptoms. METHODOLOGY Eighteen pulpal samples were obtained from single-rooted human teeth. Six of the teeth were norma...
Coronectomy is a procedure that intentionally spares the vital root after removal of the crown of the lower third molar to avoid damage to the inferior alveolar nerve. Vital pulp therapy is one option for managing exposed pulp tissue to reduce the risk of pulpal inflammation or necrosis. Among various dental materials, mineral trioxide aggregate (MTA) has been successfully used for vital pulp t...
Dental pulp tissue supports the vitality of the tooth, but it is particularly vulnerable to external insults, such as mechanical trauma, chemical irritation or microbial invasion, which can lead to tissue necrosis. In the present work, we present an endodontic regeneration method based on the use of a tridimensional (3D) hyaluronan scaffold and human dental pulp stem cells (DPSCs) to produce a ...
Material and Methods: Children as dental patients, a study The records of 100 children between age 2-10 years visiting a pediatric dental clinic for various pulpal and periapical conditions were evaluated. A total of 364 procedures (pulp therapies such as pulpotomy and pulpectomy, and extractions) were carried out in the children for different pulpal and periapical pathologies (irreversible pul...
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