Effect of different labio-lingual spaces in tray designs on the displacement of and pressure against a mobile tooth.
Identifieur interne : 002364 ( Ncbi/Merge ); précédent : 002363; suivant : 002365Effect of different labio-lingual spaces in tray designs on the displacement of and pressure against a mobile tooth.
Auteurs : Y. Nishi [Japon] ; K. Tsuru ; C. Kishita ; Y. Kamashita ; T. Hamano ; E. NagaokaSource :
- Journal of oral rehabilitation [ 1365-2842 ] ; 2008.
Descripteurs français
- KwdFr :
- Analyse du stress dentaire, Canine (physiologie), Extrusion dentaire (), Humains, Incisive (physiologie), Matériaux empreinte dentaire, Maxillaire (physiologie), Mobilité dentaire (étiologie), Modèles dentaires, Mâchoire partiellement édentée, Technique de prise d'empreinte (effets indésirables), Technique de prise d'empreinte (instrumentation).
- MESH :
- effets indésirables : Technique de prise d'empreinte.
- physiologie : Canine, Incisive, Maxillaire.
- étiologie : Mobilité dentaire, Technique de prise d'empreinte.
- Analyse du stress dentaire, Extrusion dentaire, Humains, Matériaux empreinte dentaire, Modèles dentaires, Mâchoire partiellement édentée.
English descriptors
- KwdEn :
- Cuspid (physiology), Dental Impression Materials, Dental Impression Technique (adverse effects), Dental Impression Technique (instrumentation), Dental Models, Dental Stress Analysis, Humans, Incisor (physiology), Jaw, Edentulous, Partially, Maxilla (physiology), Tooth Avulsion (complications), Tooth Mobility (etiology).
- MESH :
- chemical : Dental Impression Materials.
- adverse effects : Dental Impression Technique.
- complications : Tooth Avulsion.
- etiology : Tooth Mobility.
- instrumentation : Dental Impression Technique.
- physiology : Cuspid, Incisor, Maxilla.
- Dental Models, Dental Stress Analysis, Humans, Jaw, Edentulous, Partially.
Abstract
The present study aimed to examine the effect of custom tray designs on the displacement of mobile tooth and local impression pressures during the impression procedure, using partially edentulous simulation models with six anterior teeth containing a mobile tooth prepared in previous studies. The custom trays were designed by altering the thickness of the respective spaces on the labial and lingual sides of the remaining tooth arch. In previous studies, the mobile tooth was displaced in the labial direction and local impression pressures of the mobile tooth were greater against the lingual side than the labial side for all custom tray designs. Furthermore, the custom trays perforated with holes on the lingual side were effective to reduce mobile tooth displacement, labial and lingual impression pressures against the mobile tooth, and the differences between them. Therefore, the present study was performed focusing on the labial and lingual thickness of spaces in custom tray designs. It was found that mobile tooth displacement, labial and lingual impression pressures against the mobile teeth and their differences were less in trays with spaces>3.0 mm thick on both the labial and lingual sides, but markedly greater in trays with a 1.5 mm-thick space on the labial side. These results indicate that the thickness of spaces on the labial side in the tray should not be reduced to prevent mobile tooth displacement.
DOI: 10.1111/j.1365-2842.2007.01810.x
PubMed: 18793354
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pubmed:18793354Le document en format XML
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<term>Dental Impression Technique (instrumentation)</term>
<term>Dental Models</term>
<term>Dental Stress Analysis</term>
<term>Humans</term>
<term>Incisor (physiology)</term>
<term>Jaw, Edentulous, Partially</term>
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<term>Tooth Mobility (etiology)</term>
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<term>Matériaux empreinte dentaire</term>
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<term>Mobilité dentaire (étiologie)</term>
<term>Modèles dentaires</term>
<term>Mâchoire partiellement édentée</term>
<term>Technique de prise d'empreinte (effets indésirables)</term>
<term>Technique de prise d'empreinte (instrumentation)</term>
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<term>Extrusion dentaire</term>
<term>Humains</term>
<term>Matériaux empreinte dentaire</term>
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<front><div type="abstract" xml:lang="en">The present study aimed to examine the effect of custom tray designs on the displacement of mobile tooth and local impression pressures during the impression procedure, using partially edentulous simulation models with six anterior teeth containing a mobile tooth prepared in previous studies. The custom trays were designed by altering the thickness of the respective spaces on the labial and lingual sides of the remaining tooth arch. In previous studies, the mobile tooth was displaced in the labial direction and local impression pressures of the mobile tooth were greater against the lingual side than the labial side for all custom tray designs. Furthermore, the custom trays perforated with holes on the lingual side were effective to reduce mobile tooth displacement, labial and lingual impression pressures against the mobile tooth, and the differences between them. Therefore, the present study was performed focusing on the labial and lingual thickness of spaces in custom tray designs. It was found that mobile tooth displacement, labial and lingual impression pressures against the mobile teeth and their differences were less in trays with spaces>3.0 mm thick on both the labial and lingual sides, but markedly greater in trays with a 1.5 mm-thick space on the labial side. These results indicate that the thickness of spaces on the labial side in the tray should not be reduced to prevent mobile tooth displacement.</div>
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<Abstract><AbstractText>The present study aimed to examine the effect of custom tray designs on the displacement of mobile tooth and local impression pressures during the impression procedure, using partially edentulous simulation models with six anterior teeth containing a mobile tooth prepared in previous studies. The custom trays were designed by altering the thickness of the respective spaces on the labial and lingual sides of the remaining tooth arch. In previous studies, the mobile tooth was displaced in the labial direction and local impression pressures of the mobile tooth were greater against the lingual side than the labial side for all custom tray designs. Furthermore, the custom trays perforated with holes on the lingual side were effective to reduce mobile tooth displacement, labial and lingual impression pressures against the mobile tooth, and the differences between them. Therefore, the present study was performed focusing on the labial and lingual thickness of spaces in custom tray designs. It was found that mobile tooth displacement, labial and lingual impression pressures against the mobile teeth and their differences were less in trays with spaces>3.0 mm thick on both the labial and lingual sides, but markedly greater in trays with a 1.5 mm-thick space on the labial side. These results indicate that the thickness of spaces on the labial side in the tray should not be reduced to prevent mobile tooth displacement.</AbstractText>
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