發(fā)布時間：2018-05-01 16:11

  本文選題：顯微CT掃描 + 骨板厚度�。� 參考：《濱州醫(yī)學院》2010年碩士論文

【摘要】：實驗目的： 利用高分辨率Micro CT對上、下頜骨進行掃描,通過三維成像利用計算機軟件確定測量位點從而進行解剖學測量,研究根尖至頰側(cè)和舌、腭側(cè)骨板距離,進一步建立相關(guān)解剖數(shù)據(jù)庫,為臨床醫(yī)師提供臨床操作的理論依據(jù),減少術(shù)前術(shù)中并發(fā)癥的發(fā)生,推進牙種植技術(shù)以及其他口腔手術(shù)更好的應用于臨床。觀察Micro CT三維成像效果,促進Micro CT在基礎研究和臨床上的應用。實驗方法： 1)材料：上下頜骨標本,所有材料標本保持牙齒結(jié)構(gòu)完整和完整的上下頜骨結(jié)構(gòu),頜骨沒有病理性的吸收和缺損,所得上、下頜骨標本由福爾馬林液浸泡保存。實驗過程中沒有任何解剖結(jié)構(gòu)的破壞,并由同一人員完成相關(guān)操作。 2)方法：運用Micro CT(Skyscan1072, SKYSCAN, Antwerpen, Belgium)對上下頜骨進行掃描,部位牙頸部至根尖,層厚間距14μm,將獲得的影像通過Minics8.1軟件進行擬合,再利用逆向工程軟件建立三維斷面圖像。應用軟件測量所有根尖至頰、舌側(cè)骨板的厚度。實驗結(jié)果： 1)上頜：上頜前牙區(qū)除第一前磨牙腭根之外其余的牙根尖至頰側(cè)骨皮質(zhì)的距離均小于3mm,尤其是切牙與尖牙均在2mm之內(nèi)(表1)。上頜磨牙區(qū)腭側(cè)根尖至腭側(cè)骨板的距離明顯的小于腭側(cè)根尖至頰側(cè)骨板的距離,根尖手術(shù)時可考慮腭側(cè)入路(表2)。在上頜頰側(cè)根中,頰側(cè)牙根尖至頰側(cè)骨板的距離由前牙至后牙呈遞增趨勢,最薄厚度為女性第一前磨牙1.08 mm,最厚為第二磨牙融合根情況5.76mm。 2)下頜：整體來看,下頜骨頰側(cè)骨板較上頜骨厚。前牙部位頰側(cè)骨板的距離在1.53mm至2.98mm之間。下頜磨牙區(qū)唯一有舌側(cè)根的為下頜第一磨牙,且舌側(cè)根尖至頰側(cè)骨板的距離大于其他頰側(cè)根尖至頰側(cè)骨板的距離,距離最大為7.91mm(男性)和7.43mm(女性)。女性牙根尖至頰側(cè)骨板的距離相對比男性的較近,但差異并無統(tǒng)計學意義。 3) Micro CT掃描所得圖像及經(jīng)重建所得三維圖像均顯示出清晰的成像效果。利用圖像處理軟件進行根尖至頰、舌側(cè)骨板的厚度測量結(jié)果準確可靠、快速。 實驗結(jié)論： 1) Micro CT是一種快速、準確、無破壞內(nèi)部結(jié)構(gòu)的有效評價方法。可以很好的應用于口腔基礎研究和臨床。 2)實驗所得根尖至頰側(cè)、舌側(cè)、腭側(cè)骨板厚度的解剖學測量結(jié)果將為口腔臨床醫(yī)師更好開展牙種植技術(shù)提供更多準確的信息,提高口腔頜面外科其他相關(guān)手術(shù)的成功率,有助于進一步建立相關(guān)解剖數(shù)據(jù)庫。
[Abstract]:Objective: The maxillary and mandibular bones were scanned by high-resolution Micro CT. The site of measurement was determined by computer software, and the distance from the root tip to the buccal side, the tongue and the palatal bone plate was studied. Further establish the related anatomical database for clinicians to provide a theoretical basis for clinical operations to reduce the incidence of intraoperative complications promote dental implant technology and other oral surgery is better used in clinical. To observe the three-dimensional imaging effect of Micro CT and to promote the application of Micro CT in basic research and clinic. Experimental methods: 1) Materials: the maxillary and mandibular bones were preserved in formalin solution. The maxillary bone was preserved in formalin solution, and the maxillary bone was preserved in formalin solution. There was no destruction of the anatomical structure during the experiment, and the operation was performed by the same person. 2) methods: the maxillary and mandibular bones were scanned by Micro CTS Skyscan1072 and SKYSCAN, Antwerpen, Belgium). The teeth were located from the neck to the apex with a thickness distance of 14 渭 m. The obtained images were fitted by Minics8.1 software, and the 3D cross-sectional images were established by reverse engineering software. The thickness of bone plate of all root tip to buccal and lingual side was measured by software. Experimental results: 1) maxilla: the distance from the root tip to the buccal bone cortex of the maxillary anterior teeth except the first premolar palatal root was less than 3 mm, especially the incisor and canine teeth were within 2mm (Table 1). The distance between the palatine tip and the palatine bone plate in the maxillary molar region was obviously smaller than that between the palatine tip and the buccal bone plate, and the palatine approach could be considered during the apical operation (Table 2). In the maxillary buccal lateral root, the distance between the root tip of the buccal tooth and the buccal bone plate showed an increasing trend from the anterior tooth to the posterior tooth. The thinnest thickness was 1.08 mm for the female first premolar and 5.76 mm for the fused root of the second molar. 2) mandible: as a whole, the mandibular buccal bone plate is thicker than the maxillary bone. The distance of the buccal bone plate in anterior teeth was between 1.53mm and 2.98mm. The first mandibular molar was the only one with lingual lateral root, and the distance between the lingual root tip and the buccal bone plate was greater than that between the other buccal apex and buccal bone plate, the maximum distance was 7.91 mm (male) and 7.43 mm (female). The distance from the root tip to the buccal bone plate of female was closer than that of male, but the difference was not statistically significant. 3) the Micro CT images and the reconstructed 3D images show a clear imaging effect. The thickness of bone plate from root tip to cheek and tongue was measured by image processing software. The experimental conclusions are as follows: 1) Micro CT is a fast, accurate and effective method for evaluating internal structure. It can be used in oral basic research and clinic. 2) the anatomical measurement of the thickness of bone plate from the root tip to the buccal side, the lingual side and the palatal side will provide more accurate information for the dental clinicians to carry out dental implant technology and improve the success rate of other related operations in oral and maxillofacial surgery. It is helpful to further establish the related anatomical database.
【學位授予單位】：濱州醫(yī)學院
【學位級別】：碩士
【學位授予年份】：2010
【分類號】：R816.8;R322

【引證文獻】

相關(guān)碩士學位論文 前1條

1 王博;顯微CT在骨腱結(jié)合部損傷中的應用與低強度循環(huán)載荷對損傷的影響[D];北京體育大學;2012年

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本文編號：1830107