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口腔醫(yī)學(xué)技術(shù)出路

時(shí)間:2024-01-20 16:58:00

導(dǎo)語(yǔ):在口腔醫(yī)學(xué)技術(shù)出路的撰寫旅程中,學(xué)習(xí)并吸收他人佳作的精髓是一條寶貴的路徑,好期刊匯集了九篇優(yōu)秀范文,愿這些內(nèi)容能夠啟發(fā)您的創(chuàng)作靈感,引領(lǐng)您探索更多的創(chuàng)作可能。

口腔醫(yī)學(xué)技術(shù)出路

第1篇

關(guān)鍵詞:埋伏阻生牙;微創(chuàng)拔牙術(shù);外科聯(lián)合正畸;CBCT

Abstract:Objective To study the cone beam CT(CBCT)in clinical diagnosis and treatment of teeth in maxillary anterior impacted.Methods In our hospital of May 2010~2013,67 cases of patients with 95 teeth of maxillary anterior impacted teeth were examined by CBCT,and three-dimensional reconstruction,determine the impacted teeth in the maxillary bone in position,shape,direction,root development and relationship with adjacent teeth.These images can help dentists choose a reasonable surgical approach and orthodontic traction direction,so as to make the right treatment.Results 53 teeth impacted teeth by surgical and orthodontic treatment,after 6~12 months of traction to help adorable tooth column;the other 42 impacted teeth due to abnormal morphological,tooth axis tilt angle and other factors were eventually removed,adopt minimally invasive extraction extraction process,and no teeth other operation negative damage during the operation.Conclusion CBCT plays an important role in the diagnosis and treatment of the impacted teeth,which is worthy of popularization and application.

Key words:Impacted tooth;Minillary invasive tooth extraction;Surgical orthodontics;CBCT

上M骨前部是埋伏阻生牙的高發(fā)部位,好發(fā)生于尖牙和中切牙,對(duì)于診斷及治療也是臨床的難點(diǎn)之一。傳統(tǒng)埋伏阻生牙應(yīng)用X線片定位方法,如偏心投照法,上頜前牙軸向咬合片,全頜曲面斷層片,往往因?yàn)橹丿B變形失真而誤導(dǎo)診斷定位和制定合適的治療方案。近年來(lái)錐形束CT(Cone beam computed tomography,CBCT)在口腔醫(yī)學(xué)領(lǐng)域的廣泛應(yīng)用,為明確診斷上頜骨前部的埋伏阻生牙提供了客觀準(zhǔn)確的依據(jù),使醫(yī)生能更加直觀準(zhǔn)確的制定治療方案和判斷預(yù)后。CBCT通過(guò)矢狀面、冠狀面、軸狀面等不同軸位的剖析及三維重建技術(shù),精準(zhǔn)地確定牙齒的位置,形態(tài),鄰牙牙根吸收情況,牙囊大小,骨質(zhì)情況等其他臨床相關(guān)信息[1]。

1 資料與方法

1.1一般資料 選擇我院2010年5月~2013年5月95顆埋伏阻生牙,其中男39例,女28例,年齡在8~36歲?;颊咭蜓懒腥睋p,牙齒排列不齊或乳牙滯留在拍攝曲面斷層或根尖片時(shí)發(fā)現(xiàn)埋伏阻生牙,因不能判斷埋伏阻生牙的實(shí)際形態(tài)和三維位置追加拍攝CBCT檢查,獲取埋伏阻生牙在矢狀位,冠狀位,水平位三個(gè)軸面的診斷信息,發(fā)現(xiàn)的埋伏阻生牙包括中切牙43顆,側(cè)切牙1顆,尖牙51顆;正畸牽引牙包括中切牙24顆,側(cè)切牙1顆,尖牙28顆;拔除牙包括中切牙19顆,尖牙23顆,確定相應(yīng)的治療方案經(jīng)患者知情同意后實(shí)施最終治療方案。

1.2埋伏阻生牙定位分析 對(duì)所有患者使用CBCT(芬蘭,Planmeca Romaxis;KV,84;MA,12.0;S,12.147;DAP(MGY×CM2767)掃描定位,患者站立于成像系統(tǒng)前,頦部置于頦托內(nèi),在控制面板上選擇適當(dāng)模式,使上下牙列咬合進(jìn)入投照視野區(qū)域。利用Planmecaca Romaxis 3.0.1R圖像分析系統(tǒng)在矢狀面、冠狀面、軸狀面對(duì)于埋伏牙的唇腭側(cè)位置,近遠(yuǎn)中,垂直向位置,牙體冠根發(fā)育階段,根長(zhǎng)及牙根彎曲度,牙根傾斜角度與鄰牙關(guān)系,埋伏阻生牙骨質(zhì)情況進(jìn)行定位和觀察。

1.3外科正畸聯(lián)合治療 ①對(duì)于軟組織阻生,有一定萌出潛力,生長(zhǎng)方向正確,牙弓內(nèi)有足夠的萌出間隙或萌出間隙不足經(jīng)正畸擴(kuò)大間隙后行橫切助萌術(shù)。②對(duì)于牙冠已穿出牙槽嵴,唇腭側(cè)有明顯觸及突起的埋伏阻生牙,直接行環(huán)切助萌術(shù),開(kāi)窗暴露至少2/3的牙冠。③對(duì)于大多數(shù)埋伏阻生牙采用“隧道式”助萌術(shù)[2],即根據(jù)CBCT的引導(dǎo)確定唇腭側(cè)骨壁開(kāi)窗的位置,沿嵴頂做梯形切口至埋伏阻生牙的高度,翻粘骨膜瓣,去除牙齒萌出路徑上的牙槽骨,形成埋伏阻生牙“隧道式”萌出通路,暴露牙冠,盡量保留一定量的牙囊組織和唇頰側(cè)邊緣牙槽骨,牙面酸蝕,涂粘結(jié)劑,粘接牽引裝置,經(jīng)"隧道"穿出牙槽嵴頂連接至口內(nèi),粘骨膜瓣復(fù)位,縫合。

參考文獻(xiàn):

[1]Küchler E C,Tannure P N,Costa M C,et al.Management of an unerupted dilacerated maxillary central incisor after trauma to the primary predecessor[J].Journal of Dentistry for Children,2012,79(1):30-33.

[2]Nieri M,Crescini A,Rotundo R,et al.Factors affecting the clinical approach to impacted maxillary canines:A Bayesian network analysis[J]. American journal of orthodontics and dentofacial orthopedics:official publication of the American Association of Orthodontists,its constituent societies,and the American Board of Orthodontics,2010,137(137):755-762.

[3]Becker A,Chaushu G,Chaushu S.Analysis of failure in the treatment of impacted maxillary canines[J].American journal of orthodontics and dentofacial orthopedics: official publication of the American Association of Orthodontists,its constituent societies,and the American Board of Orthodontics,2010,137(6):743-754.

[4]王峰,林松彬,徐|,等.CT 引導(dǎo)下上頜埋伏阻生牙28 例矯治分析[J].人民軍醫(yī),2011,54(6):517-518.