نتایج جستجو برای: primary tooth
تعداد نتایج: 708503 فیلتر نتایج به سال:
odontoma.2,3 Compound odontomas consist of tooth-like structures that radiographically appear as opacities. Complex odontomas comprise a mixture of odontogenic tissues without dental organization.2,4 Clinically, three types of odontomas are recognized in the literature: central (intraosseous) odontoma, peripheral (extraosseous or soft tissue) odontoma, and erupted odontoma.2,5 Odontomas are oft...
background and aims. the purpose of this investigation was to assess the placement and replacement of resin-based composite restorations and related factors in a private practice in greece. materials and methods. the study included 1500 subjects, 720 males and 780 females, aged 18 to 52 years old. the clinical examination involved calculation of the number of teeth with primary caries and faile...
The aim of the present study was to provide a general scheme for pulpectomy of primary molars that may be useful for decision-making about negotiation of root canals and selection of appropriate instruments. A total of 160 vital primary molars in 85 patients (40 males, 45 females) aged 4-6 years were selected. After taking primary radiographs, local anesthesia was induced, and the teeth were is...
To cite: Kumar MH, Kumar MS, Kumar VS, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2015-211240 DESCRIPTION The peg-shaped conical tooth is the supernumerary tooth most commonly found in the permanent dentition. It develops with root formation ahead of or at an equivalent stage to that of the permanent incisors and usually presents as a mesiodens. Tooth...
Carious lesions are distributed nonuniformly across tooth surfaces of the complete dentition, suggesting that the effects of risk factors may be surface-specific. Whether genes differentially affect caries risk across tooth surfaces is unknown. We investigated the role of genetics on two classes of tooth surfaces, pit and fissure surfaces (PFS) and smooth surfaces (SMS), in more than 2,600 subj...
This clinical report describes the delayed development of a maxillary second premolar. The premolar developed when the patient was between the ages of 12 and 16 years. The development of the tooth was discovered from a panoramic radiograph taken when the patient was 17 years, 1 month of age. Previous to this discovery, the tooth had been diagnosed as congenitally missing. The transition from th...
The radiographic anatomy of the superior borders of pulpal chambers of primary molars was studied to clarify interpretation of superimposing cuspal images. First and second maxillary and mandibular molars were sectioned transaxially in the cervical region. The pulpal tissue was replaced by radiopaque resin before embedding the crowns in clear plastic blocks and obtaining buccolingual radiograph...
Primary failure of eruption represents a cessation of tooth eruption before emergence not due to a physical barrier or abnormal position and has no systemic cause. This failure of tooth eruption is rare phenomenon and it has not been associated with alterations of dental follicle. This case report describes a permanent right first molar with primary failure of eruption at the inferior border of...
PURPOSE The purpose of this project was to establish median eruption ages of primary teeth and evaluate eruption differences between contralateral teeth by gender, ethnicity, and household income. Data was derived from a caries study of preschool children. METHODS A total of 4,277 white (non-Hispanic) and Hispanic preschool children from Arizona were visually examined for caries and tooth eru...
OBJECTIVES The aim of the present study was to evaluate the type and prevalence of primary tooth injuries, as well as their treatment and treatment outcomes, among children referred to the Department of Pedodontics at the Ankara University Faculty of Dentistry in Turkey. METHODS The study population consisted of patients applying to the department with a primary tooth injury over a period of ...
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