نتایج جستجو برای: endodontic handpieces
تعداد نتایج: 7205 فیلتر نتایج به سال:
OBJECTIVE This study aimed to evaluate enamel roughness after adhesive removal using different burs and an Er:YAG laser. MATERIALS AND METHODS The buccal surfaces of forty human premolars were sealed by two layers of nail varnish, except for a circular area of 3 mm in diameter on the middle third. The enamel surfaces were initially subjected to profilometry analysis and four parameters of sur...
AIM The aim of the study was to compare several cavity shapes after application using different handpieces and tips of Er:YAG laser. MATERIALS AND METHODS Firstly, this in vitro investigation was performed on two upper molars. Their crowns were cut horizontally underneath the occlusal fissures in order to obtain a flat dentin surface. Afterwards, minimal cavities were prepared by using an Er:...
INTRODUCTION Extended exposure to high-speed handpieces and other noise-intensive devices might put dentists at risk for possible hearing impairment. The aim of this study was to determine the hearing ability of dentists and other scientists for comparison. METHODS After approval by the ethics committee, 115 subjects (dentists and other academic professionals as controls) of both genders were...
Taurodontism is the morphoanatomical change in the shape of a tooth, which involves enlargement of the body of the tooth and shortening of the roots. Although a rare dental anomaly, unusual radicular form presents with challenging endodontic considerations. Endodontic management of taurodont teeth has been described as complex and difficult. The present article describes a brief literature revi...
Tooth discoloration induced by endodontic sealers, is a common finding that impairs aesthetic outcome of endodontic treatment. The aim of the present mini literature review, was to summarize the existing data on discoloration potential of different endodontic sealers. The research covered the article published in PubMed and Google Scholar from 2000 to 2015. The searched keywords included 'tooth...
AIM To determine the incidence of aspiration and ingestion of endodontic instruments in France during root canal treatment without using rubber dam. METHODOLOGY Data was provided by two insurance companies representing 24,651 French general dentists over 11 years. The type and number of accidents per year, the number of dental items involved and the percentage of occurrence of either aspirati...
The objective of this study was to demonstrate the correlation between endodontic treatment on maxillary teeth and fungus ball with inductively coupled plasma mass spectrometry measurement of zinc and other metals (barium, lead and copper) in fungus ball samples. Samples of normal maxillary mucosa were used as comparison. Metal concentration was also measured in several endodontic materials. A ...
OBJECTIVES The purpose of this study was to investigate issues related to access to endodontic care in North Carolina for individuals who used dental public health resources such as public health clinics (PHCs) or private practices that accept Medicaid or other government-sponsored reimbursement programs private practices that accept Medicaid (PPM). METHODS Surveys were sent to 1,195 dentists...
BACKGROUND Microbiological contamination of water in dental unit waterlines (DUWL) creates a risk of cross-infections, and is a source of biological risk factors in the work environment of a dentist. The aim of the study was to evaluate dentists' knowledge on DUWL microbiological contamination and the scope of activities/procedures they undertake to monitor it. MATERIALS AND METHOD The questi...
OBJECTIVES To assess the general infection control practices with special reference to the prevention of transmission of HIV/AIDS infection among dental therapists in Zimbabwe. SETTING Dental therapists practising in Zimbabwe Government Oral Health Clinics. METHODS A descriptive cross sectional study using a self-administered questionnaire. Questions dealt with infection control practices i...
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