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Morphologic changes of the nasopalatine canal related to dental implantation: a radiologic study in different degrees of absorbed maxillae.

Identifieur interne : 001A85 ( PubMed/Checkpoint ); précédent : 001A84; suivant : 001A86

Morphologic changes of the nasopalatine canal related to dental implantation: a radiologic study in different degrees of absorbed maxillae.

Auteurs : Ofer Mardinger [Israël] ; Noa Namani-Sadan ; Gavriel Chaushu ; Devorah Schwartz-Arad

Source :

RBID : pubmed:18771366

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English descriptors

Abstract

Implant rehabilitation of the edentulous anterior maxilla remains a complex restorative challenge. Intricate preexisting anatomy dictates meticulous and accurate osteotomy planning. With progressive bone loss, the alveolar crest may approach anatomic structures. The nasopalatine nerve and vessels may ultimately emerge from the ridge crest. The radiologic changes of the nasopalatine canal were evaluated in different resorption phases of the premaxilla alveolus with regard to dental implantation.

DOI: 10.1902/jop.2008.080043
PubMed: 18771366


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<title xml:lang="en">Morphologic changes of the nasopalatine canal related to dental implantation: a radiologic study in different degrees of absorbed maxillae.</title>
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<name sortKey="Mardinger, Ofer" sort="Mardinger, Ofer" uniqKey="Mardinger O" first="Ofer" last="Mardinger">Ofer Mardinger</name>
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<nlm:affiliation>Department of Oral and Maxillofacial Surgery, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel. oferanat1@isdn.net.il</nlm:affiliation>
<country xml:lang="fr">Israël</country>
<wicri:regionArea>Department of Oral and Maxillofacial Surgery, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv</wicri:regionArea>
<wicri:noRegion>Tel Aviv</wicri:noRegion>
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<name sortKey="Namani Sadan, Noa" sort="Namani Sadan, Noa" uniqKey="Namani Sadan N" first="Noa" last="Namani-Sadan">Noa Namani-Sadan</name>
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<name sortKey="Chaushu, Gavriel" sort="Chaushu, Gavriel" uniqKey="Chaushu G" first="Gavriel" last="Chaushu">Gavriel Chaushu</name>
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<name sortKey="Schwartz Arad, Devorah" sort="Schwartz Arad, Devorah" uniqKey="Schwartz Arad D" first="Devorah" last="Schwartz-Arad">Devorah Schwartz-Arad</name>
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<term>Adolescent</term>
<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Alveolar Process (diagnostic imaging)</term>
<term>Bone Resorption (classification)</term>
<term>Bone Resorption (diagnostic imaging)</term>
<term>Cephalometry</term>
<term>Dental Implantation, Endosseous</term>
<term>Female</term>
<term>Humans</term>
<term>Jaw, Edentulous (diagnostic imaging)</term>
<term>Male</term>
<term>Maxilla (diagnostic imaging)</term>
<term>Maxillary Sinus (diagnostic imaging)</term>
<term>Middle Aged</term>
<term>Palate (diagnostic imaging)</term>
<term>Preoperative Care</term>
<term>Tomography, X-Ray Computed</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr">
<term>Adolescent</term>
<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Céphalométrie</term>
<term>Femelle</term>
<term>Humains</term>
<term>Maxillaire (imagerie diagnostique)</term>
<term>Mâchoire édentée (imagerie diagnostique)</term>
<term>Mâle</term>
<term>Palais (imagerie diagnostique)</term>
<term>Pose d'implant dentaire endo-osseux</term>
<term>Processus alvéolaire (imagerie diagnostique)</term>
<term>Résorption osseuse ()</term>
<term>Résorption osseuse (imagerie diagnostique)</term>
<term>Sinus maxillaire (imagerie diagnostique)</term>
<term>Soins préopératoires</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Tomodensitométrie</term>
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<keywords scheme="MESH" qualifier="classification" xml:lang="en">
<term>Bone Resorption</term>
</keywords>
<keywords scheme="MESH" qualifier="diagnostic imaging" xml:lang="en">
<term>Alveolar Process</term>
<term>Bone Resorption</term>
<term>Jaw, Edentulous</term>
<term>Maxilla</term>
<term>Maxillary Sinus</term>
<term>Palate</term>
</keywords>
<keywords scheme="MESH" qualifier="imagerie diagnostique" xml:lang="fr">
<term>Maxillaire</term>
<term>Mâchoire édentée</term>
<term>Palais</term>
<term>Processus alvéolaire</term>
<term>Résorption osseuse</term>
<term>Sinus maxillaire</term>
</keywords>
<keywords scheme="MESH" xml:lang="en">
<term>Adolescent</term>
<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Cephalometry</term>
<term>Dental Implantation, Endosseous</term>
<term>Female</term>
<term>Humans</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Preoperative Care</term>
<term>Tomography, X-Ray Computed</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr">
<term>Adolescent</term>
<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Céphalométrie</term>
<term>Femelle</term>
<term>Humains</term>
<term>Mâle</term>
<term>Pose d'implant dentaire endo-osseux</term>
<term>Résorption osseuse</term>
<term>Soins préopératoires</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Tomodensitométrie</term>
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<front>
<div type="abstract" xml:lang="en">Implant rehabilitation of the edentulous anterior maxilla remains a complex restorative challenge. Intricate preexisting anatomy dictates meticulous and accurate osteotomy planning. With progressive bone loss, the alveolar crest may approach anatomic structures. The nasopalatine nerve and vessels may ultimately emerge from the ridge crest. The radiologic changes of the nasopalatine canal were evaluated in different resorption phases of the premaxilla alveolus with regard to dental implantation.</div>
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<DateCompleted>
<Year>2008</Year>
<Month>11</Month>
<Day>18</Day>
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<DateRevised>
<Year>2016</Year>
<Month>11</Month>
<Day>24</Day>
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<ISSN IssnType="Print">0022-3492</ISSN>
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<Volume>79</Volume>
<Issue>9</Issue>
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<Year>2008</Year>
<Month>Sep</Month>
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<Title>Journal of periodontology</Title>
<ISOAbbreviation>J. Periodontol.</ISOAbbreviation>
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<ArticleTitle>Morphologic changes of the nasopalatine canal related to dental implantation: a radiologic study in different degrees of absorbed maxillae.</ArticleTitle>
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<AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">Implant rehabilitation of the edentulous anterior maxilla remains a complex restorative challenge. Intricate preexisting anatomy dictates meticulous and accurate osteotomy planning. With progressive bone loss, the alveolar crest may approach anatomic structures. The nasopalatine nerve and vessels may ultimately emerge from the ridge crest. The radiologic changes of the nasopalatine canal were evaluated in different resorption phases of the premaxilla alveolus with regard to dental implantation.</AbstractText>
<AbstractText Label="METHODS" NlmCategory="METHODS">The study consisted of 207 subjects who had maxillary computed tomography scans before dental implantation. The Lekholm and Zarb classification was used to divide images according to the residual bony ridge: Class A (control group) and classes B to E (study group). Anatomic mapping of the nasopalatine canal structure was carried out in both groups.</AbstractText>
<AbstractText Label="RESULTS" NlmCategory="RESULTS">The canal diameter was wider along the degree of ridge resorption from classes A to E in all dimensions, mainly in the palatal opening (P <0.01), middle area (P <0.001), and nasal area. The mean diameter of the enlargement was 1.8 mm, which reached 5.5 +/- 1.08 mm (P <0.01) in type E bone. In the severely resorbed ridges (classes C through E), when the palatal opening was situated on the ridge, it occupied a mean of 35.6% (13% to 58%) of the area devoted to implant placement. Tooth loss was the main reason for ridge resorption (P <0.01).</AbstractText>
<AbstractText Label="CONCLUSIONS" NlmCategory="CONCLUSIONS">Canal diameter enlargement was greater anteriorly to the ridge and posteriorly to the palatal bone, mainly because of tooth extraction. The atrophy of disuse may influence surrounding structures, similar to the maxillary sinus tendency to expand into surrounding bone mainly after tooth loss.</AbstractText>
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<DescriptorName UI="D010159" MajorTopicYN="N">Palate</DescriptorName>
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