Systematics and distributions of the genera Cyrtusa Erichson, Ecarinosphaerula Hatch, Isoplastus Horn, Liocyrtusa Daffner, Lionothus Brown, and Zeadolopus Broun of the United States and Canada (Coleoptera: Leiodidae: Leiodinae: Leiodini) [PDF]
The following genera of Leiodini (Coleoptera: Leiodidae: Leiodinae) of the continental United States and Canada are reviewed: Cyrtusa Erichson, with two species; Isoplastus Horn, with two species (one new); Liocyrtusa Daffner, with three species ...
Cook, Joyce, Peck, Stewart B.
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Chipped and broken functional teeth are common in modern sharks with serrated tooth shape. Tooth damage consists of splintering, cracking, and flaking near the cusp apex where the enameloid is broken and exposes the osteodentine and orthodentine.
John A. Chamberlain, Martin A. Becker
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Tooth embedding medium influences the accuracy of electronic apex locator. [PDF]
This study evaluated the influence of tooth embedding media on the accuracy ofan electronic apex locator. The root canal length of 20 human mandibular canines was measured by inserting a 15 K-file into the root canal up to the apical foramen. The distance was measured with a digital caliper.
Guerreiro-Tanomaru, Juliane M +4 more
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The window approach for extraction of tooth root fragments: a different soft tissue management [PDF]
Different techniques have been proposed for the removal of the apical portion of fractured teeth. The window approach was proposed in the past to remove a tooth root fragment through a buccal bone opening at the level of fragment.
Colaci, R., Pietrantoni, A., Pippi, R.
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Management of Ellis Class-IV Fractured Tooth With an Open Apex: A Case Report
Dental professionals face difficulty in managing "immature non-vital teeth with an open apex." It is considered to be challenging because, in this situation, root canal filling material should be confined within the boundaries of the root canal without extruding peri-apically. Apexification tries to create a hard tissue barrier that will cause the open
Gupta, Radhika +4 more
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A key to the New World species of holostipous Lejeuneaceae [PDF]
A synopsis and key emphasizing vegetative characters are provided for the 967species (in 36 genera) of Lejeuneaceae with undivided underleaves recorded from the New ...
Gradstein, Stephan Robbert
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A new species of Polyphylla Harris from peninsular Florida (Coleoptera: Scarabaeidae: Melolonthinae) with a key to species of the pubescens species group [PDF]
Polyphylla starkae Skelley, new species (Coleoptera: Scarabaeidae: Melolonthinae: Melolonthini), is described from peninsular Florida, USA.
Skelley, Paul E.
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Regeneration of immature incisor using platelet rich fibrin: report of a novel clinical application
Background Endodontic treatment of young permanent teeth with necrotic pulp presents a clinical challenge for the dentist, and conventional endodontic treatment will result in tooth fracture along with a poor prognosis.
Jishnu Krishna Kumar +2 more
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A re-evaluation of Cheilolejeunea subgenus Xenolejeunea [PDF]
Cheilolejeunea subgenus Xenolejeunea Kachroo & Schust. is emended to account for variability observed in stem anatomy and lobule structure. Cheilolejeunea subgenus Tegulilejeunea Schust. is reduced to synonymy with subgenus Xenolejeunea.
Thiers, Barbara M.
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Aquatic Hydrophilidae and Hydraenidae of Wisconsin (Coleoptera). II. Distribution, Habitat, Life Cycle and Identification of Species of Hydrobiini and Hydrophilini (Hydrophiudae: Hydrophilinae) [PDF]
Nine genera and 30 species of Hydrobiini and 3 genera and 12 species of Hydrophilini were found in Wisconsin, including a new species of Laccobius. Life cycles of all species of lentic Hydrobiini were similar; adults overwinter in terrestrial habitats ...
Hilsenhoff, William L
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