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題 名 | Esthetic Restoration of Infra-Occluded Retained Primary Mandibular Incisors with All-Ceramic Crowns in Adult Dentition=成人齒列中之下顎低位咬合滯留乳門齒之美觀贗復 |
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作 者 | 徐光蔚; 沈裕福; | 書刊名 | 長庚醫學 |
卷 期 | 27:12 2004.12[民93.12] |
頁 次 | 頁911-917 |
分類號 | 416.96 |
關鍵詞 | 缺齒畸形; 滯留乳門齒; 全瓷冠; Hypodontia; Retained primary mandibular incisors; All-ceramic crowns; |
語 文 | 英文(English) |
中文摘要 | 缺齒畸形在成人齒列的發生率大約在1.5% to 10.5%之間,若發生在前牙區,將會造成美觀的困擾。上顎側門齒及下顎正中門齒為前牙區最常發生缺齒的部位,過去的文獻只提及應用於上顎前牙區滯留乳齒的贗復方式,但對於下顎前牙區的贗復方式卻很少提到。本文報告為一位17歲女性病患,其齒列經診斷為缺齒畸形。利用電腦輔助設計及製造(CAD/CAM)技術所做出的全瓷冠,將原本低位咬合的滯留乳門齒恢復到具有功能及美麗的外觀。因為有較短的牙根及不良的冠根比,故將此兩顆牙齒相連,並於前突運動時與下顎側門齒同時與對側牙齒接觸,以分散前突力量。 |
英文摘要 | The prevalence of hypodontia is report to be between 1.5% to 10% in the permanent dentition. In the anterior teeth, maxillary laterial incisors and mandibular central incisors are the most frequently involved teeth. This cause esthetic problemss for the patient. Several reports have focused on restoration of retained maxillary primary anterior teeth, but none have described restoration of retained mandibular primary incisors. This clinical report describes the restoration of infra-occluded retained primary mandibular central incisors of a 17 year-old girl diagnosed with hypodontia. All-ceramic crowns made with computer-aided design/ computer-aided manufacturing technology were used to restore the teeth incisally and interproximally. Due to a relatively short root length and inadequate crown-root ratio, the primary mandibular central incisors were splinted and adjusted to distribute the protrusive force evenly across the maxillary and mandibular incisors. Functional and esthetic results were achieved. |
本系統中英文摘要資訊取自各篇刊載內容。