Emergence Angles of the Cementoenamel Junction in Natural Maxillary Anterior Teeth
Identifieur interne : 004833 ( Main/Exploration ); précédent : 004832; suivant : 004834Emergence Angles of the Cementoenamel Junction in Natural Maxillary Anterior Teeth
Auteurs : Je-Kang Du [Taïwan] ; Hung-Yuan Li [Taïwan] ; Ju-Hui Wu [Taïwan] ; Huey-Er Lee [Taïwan] ; Chau-Hsiang Wang [Taïwan, Niger]Source :
- Journal of Esthetic and Restorative Dentistry [ 1496-4155 ] ; 2011-12.
English descriptors
- KwdEn :
- Anterior teeth, Bers, Cementoenamel junction, Central incisor, Central incisors, Cervical, Clinical considerations, Connective tissue, Contour, Crown contour, Dent, Dentistry, Distal view, Emergence, Emergence angle, Emergence angles, Endodontic failure, Esthetic, Free gingiva, Gingiva, Gingival, Gingival contour, Gingival contours, Gingival health, Healthy gingiva, Ideal emergence, Implant, Implant placement, Implant restoration, Incisor, Kaohsiung, Labial, Labial view, Lateral, Lateral emergence, Lateral incisors, Long axis, Marginal gingiva, Marginal gingival, Master cast, Maxillary, Mesial, Narrow range, Natural maxillary, Natural tooth, Natural tooth contour, Palatal, Periodontal, Periodontal failure, Periodontal probe, Photographic observations, Polygonal mesh model, Proper emergence, Prosthet, Prosthet dent, Provisional restorations, Restorative dentistry, Root apical, Root surface, Soft tissue, Soft tissues, Standard deviation, Standard labiopalatal plane, Standard mesiodistal plane, Standard planes, Straight emergence, Strategic extraction, Subgingival, Taiwan professor, Tooth location, University hospital, Wiley periodicals.
- Teeft :
- Anterior teeth, Bers, Cementoenamel junction, Central incisor, Central incisors, Cervical, Clinical considerations, Connective tissue, Contour, Crown contour, Dent, Dentistry, Distal view, Emergence, Emergence angle, Emergence angles, Endodontic failure, Esthetic, Free gingiva, Gingiva, Gingival, Gingival contour, Gingival contours, Gingival health, Healthy gingiva, Ideal emergence, Implant, Implant placement, Implant restoration, Incisor, Kaohsiung, Labial, Labial view, Lateral, Lateral emergence, Lateral incisors, Long axis, Marginal gingiva, Marginal gingival, Master cast, Maxillary, Mesial, Narrow range, Natural maxillary, Natural tooth, Natural tooth contour, Palatal, Periodontal, Periodontal failure, Periodontal probe, Photographic observations, Polygonal mesh model, Proper emergence, Prosthet, Prosthet dent, Provisional restorations, Restorative dentistry, Root apical, Root surface, Soft tissue, Soft tissues, Standard deviation, Standard labiopalatal plane, Standard mesiodistal plane, Standard planes, Straight emergence, Strategic extraction, Subgingival, Taiwan professor, Tooth location, University hospital, Wiley periodicals.
Abstract
Statement of the Problem: Fabrication of normal crown contour to maintain gingival health is difficult in the absence of emergence angle data. Purpose: The aim of this study was to measure the geometric values of the emergence angles on the cementoenamel junction (CEJ) for natural maxillary anterior teeth. Material and Methods: This study collected 148 natural permanent maxillary anterior teeth (74 central incisors, 59 lateral incisors, and 15 canines) with intact cervixes for this study. The teeth were scanned with a three‐dimensional (3D) scanner to construct 3D models. This study measured the emergence angles of the cervical CEJ on the zenith of labial, palatal, mesial, and distal, for each tooth. Results: Measurements made on 148 maxillary anterior teeth showed the emergence angle to be within a narrow range from 11.30° to 15.26°, irrespective of the tooth location. There were no statistically significant differences between any two groups (p > 0.05). Conclusions: On the basis of measurements taken from natural teeth, we conclude that the emergence angles of the CEJ in natural maxillary anterior teeth should be 15° from the root surface.
Url:
DOI: 10.1111/j.1708-8240.2011.00471.x
Affiliations:
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first="Je-Kang" last="Du">Je-Kang Du</name><affiliation wicri:level="1"><country xml:lang="fr">Taïwan</country><wicri:regionArea>Director, Division of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung</wicri:regionArea><wicri:noRegion>Kaohsiung</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Taïwan</country><wicri:regionArea>Graduate Institute of Dental Sciences, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung</wicri:regionArea><wicri:noRegion>Kaohsiung</wicri:noRegion></affiliation></author><author><name sortKey="Li, Hung Uan" sort="Li, Hung Uan" uniqKey="Li H" first="Hung-Yuan" last="Li">Hung-Yuan Li</name><affiliation wicri:level="1"><country xml:lang="fr">Taïwan</country><wicri:regionArea>Associate Professor, Department of Mold and Die Engineering, National Kaohsiung University of Applied Sciences, 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first="Chau-Hsiang" last="Wang">Chau-Hsiang Wang</name><affiliation wicri:level="1"><country xml:lang="fr">Taïwan</country><wicri:regionArea>Professor, School of Dentistry, Kaohsiung Medical University; Director, Division of Prosthodontics, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung</wicri:regionArea><wicri:noRegion>Kaohsiung</wicri:noRegion></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Niger</country></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Journal of Esthetic and Restorative Dentistry</title><title level="j" type="alt">JOURNAL OF ESTHETIC RESTORATIVE DENTISTRY</title><idno type="ISSN">1496-4155</idno><idno type="eISSN">1708-8240</idno><imprint><biblScope unit="vol">23</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="362">362</biblScope><biblScope unit="page" to="369">369</biblScope><biblScope unit="page-count">8</biblScope><publisher>Blackwell Publishing Inc</publisher><pubPlace>Malden, USA</pubPlace><date type="published" when="2011-12">2011-12</date></imprint><idno type="ISSN">1496-4155</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1496-4155</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anterior teeth</term><term>Bers</term><term>Cementoenamel junction</term><term>Central incisor</term><term>Central incisors</term><term>Cervical</term><term>Clinical considerations</term><term>Connective tissue</term><term>Contour</term><term>Crown contour</term><term>Dent</term><term>Dentistry</term><term>Distal view</term><term>Emergence</term><term>Emergence angle</term><term>Emergence angles</term><term>Endodontic failure</term><term>Esthetic</term><term>Free gingiva</term><term>Gingiva</term><term>Gingival</term><term>Gingival contour</term><term>Gingival contours</term><term>Gingival health</term><term>Healthy gingiva</term><term>Ideal emergence</term><term>Implant</term><term>Implant placement</term><term>Implant restoration</term><term>Incisor</term><term>Kaohsiung</term><term>Labial</term><term>Labial view</term><term>Lateral</term><term>Lateral emergence</term><term>Lateral incisors</term><term>Long axis</term><term>Marginal gingiva</term><term>Marginal gingival</term><term>Master cast</term><term>Maxillary</term><term>Mesial</term><term>Narrow range</term><term>Natural maxillary</term><term>Natural tooth</term><term>Natural tooth contour</term><term>Palatal</term><term>Periodontal</term><term>Periodontal failure</term><term>Periodontal probe</term><term>Photographic observations</term><term>Polygonal mesh model</term><term>Proper emergence</term><term>Prosthet</term><term>Prosthet dent</term><term>Provisional restorations</term><term>Restorative dentistry</term><term>Root apical</term><term>Root surface</term><term>Soft tissue</term><term>Soft tissues</term><term>Standard deviation</term><term>Standard labiopalatal plane</term><term>Standard mesiodistal plane</term><term>Standard planes</term><term>Straight emergence</term><term>Strategic extraction</term><term>Subgingival</term><term>Taiwan professor</term><term>Tooth location</term><term>University hospital</term><term>Wiley periodicals</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Anterior teeth</term><term>Bers</term><term>Cementoenamel junction</term><term>Central incisor</term><term>Central incisors</term><term>Cervical</term><term>Clinical considerations</term><term>Connective tissue</term><term>Contour</term><term>Crown contour</term><term>Dent</term><term>Dentistry</term><term>Distal view</term><term>Emergence</term><term>Emergence angle</term><term>Emergence angles</term><term>Endodontic failure</term><term>Esthetic</term><term>Free gingiva</term><term>Gingiva</term><term>Gingival</term><term>Gingival contour</term><term>Gingival contours</term><term>Gingival health</term><term>Healthy gingiva</term><term>Ideal emergence</term><term>Implant</term><term>Implant placement</term><term>Implant restoration</term><term>Incisor</term><term>Kaohsiung</term><term>Labial</term><term>Labial view</term><term>Lateral</term><term>Lateral emergence</term><term>Lateral incisors</term><term>Long axis</term><term>Marginal gingiva</term><term>Marginal gingival</term><term>Master cast</term><term>Maxillary</term><term>Mesial</term><term>Narrow range</term><term>Natural maxillary</term><term>Natural tooth</term><term>Natural tooth contour</term><term>Palatal</term><term>Periodontal</term><term>Periodontal failure</term><term>Periodontal probe</term><term>Photographic observations</term><term>Polygonal mesh model</term><term>Proper emergence</term><term>Prosthet</term><term>Prosthet dent</term><term>Provisional restorations</term><term>Restorative dentistry</term><term>Root apical</term><term>Root surface</term><term>Soft tissue</term><term>Soft tissues</term><term>Standard deviation</term><term>Standard labiopalatal plane</term><term>Standard mesiodistal plane</term><term>Standard planes</term><term>Straight emergence</term><term>Strategic extraction</term><term>Subgingival</term><term>Taiwan professor</term><term>Tooth location</term><term>University hospital</term><term>Wiley periodicals</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract">Statement of the Problem: Fabrication of normal crown contour to maintain gingival health is difficult in the absence of emergence angle data. Purpose: The aim of this study was to measure the geometric values of the emergence angles on the cementoenamel junction (CEJ) for natural maxillary anterior teeth. Material and Methods: This study collected 148 natural permanent maxillary anterior teeth (74 central incisors, 59 lateral incisors, and 15 canines) with intact cervixes for this study. The teeth were scanned with a three‐dimensional (3D) scanner to construct 3D models. This study measured the emergence angles of the cervical CEJ on the zenith of labial, palatal, mesial, and distal, for each tooth. Results: Measurements made on 148 maxillary anterior teeth showed the emergence angle to be within a narrow range from 11.30° to 15.26°, irrespective of the tooth location. There were no statistically significant differences between any two groups (p > 0.05). Conclusions: On the basis of measurements taken from natural teeth, we conclude that the emergence angles of the CEJ in natural maxillary anterior teeth should be 15° from the root surface.</div></front></TEI><affiliations><list><country><li>Niger</li><li>Taïwan</li></country></list><tree><country name="Taïwan"><noRegion><name sortKey="Du, Je Ang" sort="Du, Je Ang" uniqKey="Du J" first="Je-Kang" last="Du">Je-Kang Du</name></noRegion><name sortKey="Du, Je Ang" sort="Du, Je Ang" uniqKey="Du J" first="Je-Kang" last="Du">Je-Kang Du</name><name sortKey="Lee, Huey R" sort="Lee, Huey R" uniqKey="Lee H" first="Huey-Er" last="Lee">Huey-Er Lee</name><name sortKey="Li, Hung Uan" sort="Li, Hung Uan" uniqKey="Li H" first="Hung-Yuan" last="Li">Hung-Yuan Li</name><name sortKey="Wang, Chau Siang" sort="Wang, Chau Siang" uniqKey="Wang C" first="Chau-Hsiang" last="Wang">Chau-Hsiang Wang</name><name sortKey="Wu, Ju Ui" sort="Wu, Ju Ui" uniqKey="Wu J" first="Ju-Hui" last="Wu">Ju-Hui Wu</name></country><country name="Niger"><noRegion><name sortKey="Wang, Chau Siang" sort="Wang, Chau Siang" uniqKey="Wang C" first="Chau-Hsiang" last="Wang">Chau-Hsiang Wang</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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