本文選題：數(shù)字化全頜曲面斷層片 + 頜骨密度��； 參考：《中國(guó)骨質(zhì)疏松雜志》2014年12期

【摘要】：目的探討安氏I類(lèi)錯(cuò)牙合不同垂直骨面型患者的下頜骨骨密度的差異,為不同骨面型患者的正畸治療提供臨床參考。方法選擇面部基本對(duì)稱(chēng)安氏I類(lèi)患者88例,其中均角患者32例(男性12例,女性20例,平均年齡21.0歲)作為正常對(duì)照,高角患者27例(男性10例,女性17例,平均年齡22.5歲)、低角患者29例(男性15例,女性14例,平均年齡21.0歲)作為兩實(shí)驗(yàn)組,88例患者均拍攝數(shù)字化全頜曲面斷層片,采用曲面體層下頜指數(shù)(PMI)為測(cè)量指標(biāo)分析樣本的下頜骨骨密度。結(jié)果正常對(duì)照組s PMI值為0.280±0.035,i PMI值為0.348±0.052;高角組患者s PMI值為0.248±0.033,i PMI值為0.313±0.044;低角組患者s PMI值為0.285±0.038,i PMI值為0.361±0.061。3組的PMI指數(shù)差異有顯著性(P0.05)。結(jié)論高角組患者下頜骨骨密度值較正常組低,低角組患者下頜骨骨密度值較正常組高。PMI指數(shù)反映了下頜骨皮質(zhì)骨量的變化,間接反映了下頜骨的骨密度,為檢測(cè)下領(lǐng)骨骨密度提供了簡(jiǎn)便、直觀的方法。同時(shí),下頜骨骨密度的測(cè)定結(jié)果可能提示全身骨密度情況,可以使其得到早期防治。
[Abstract]:Objective to investigate the difference of mandibular bone mineral density (BMD) in patients with different vertical bone types of Class I malocclusion, and to provide clinical reference for orthodontic treatment of patients with different bone types. Methods Eighty-eight patients with basic symmetry of facial type I were selected as normal control, including 32 patients with mean angle (12 males, 20 females, mean age 21.0 years), and 27 patients with high angle (10 males, 17 females). The mean age was 22.5 years old, and 29 cases (male 15, female 14, mean age 21.0 years) of low angle patients were used as digital panmaxillary tomograms in 88 patients in the two experimental groups. The mandibular bone mineral density (BMD) of the sample was analyzed with curved mandibular index (PMI). Results the value of s PMI in normal control group was 0.348 鹵0.052, that in high angle group was 0.248 鹵0.033 and that in low angle group was 0.313 鹵0.044, and that in low angle group was 0.285 鹵0.038 and 0.361 鹵0.061.3. There was a significant difference in PMI index between the two groups (P < 0.05). Conclusion the bone mineral density of the mandible in the high angle group is lower than that in the normal group, and the BMD value in the lower angle group is higher than that in the normal group. The PMI index reflects the change of cortical bone mass of the mandible and indirectly reflects the bone mineral density of the mandible. It provides a simple and intuitive method for the determination of bone mineral density of lower collar bone. At the same time, the bone mineral density of the mandible may indicate the whole body bone mineral density, so that it can be prevented early.
【作者單位】： 新疆醫(yī)科大學(xué)第一附屬醫(yī)院口腔正畸科;烏魯木齊市口腔醫(yī)院口腔正畸科;
【分類(lèi)號(hào)】：R783.5
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本文編號(hào)：1909410