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成人安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合畸形髁狀突—關(guān)節(jié)窩的位置和形態(tài)特征的CBCT研究

發(fā)布時(shí)間:2018-08-16 18:42
【摘要】:目的: 通過(guò)對(duì)山東地區(qū)成年安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合畸形和正常合志愿者安氏工類(lèi)顳下頜關(guān)節(jié)的比較研究,探討無(wú)癥狀顳下頜關(guān)節(jié)成人安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合顳下頜關(guān)節(jié)髁狀突-關(guān)節(jié)窩位置關(guān)系和形態(tài)特征。 方法: 選擇25例成人骨性Ⅱ類(lèi)安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合患者(男性11例,女性14例,年齡18~26歲,平均年齡22歲,組間無(wú)性別差異。)和25例安氏Ⅰ類(lèi)錯(cuò)合患者,(男性13例,女性12例,年齡18-26歲,平均年齡22歲,組間無(wú)性別差異)。所有研究對(duì)象開(kāi)、閉口功能正常,無(wú)顳下頜關(guān)節(jié)癥狀,并經(jīng)薛氏位X線檢查無(wú)明顯顳下頜關(guān)節(jié)結(jié)構(gòu)改變。采用錐形束CT (Sirona Model-No:6007269D3437)進(jìn)行頭顱掃描,應(yīng)用Mimics16.01軟件進(jìn)行重建,然后在矢狀面影像上對(duì)雙側(cè)顳下頜關(guān)節(jié)上間隙、前間隙、后間隙、髁突高度與寬度、關(guān)節(jié)窩深度與寬度、關(guān)節(jié)結(jié)節(jié)后斜面斜度等指標(biāo)進(jìn)行測(cè)量分析,在冠狀面影像上進(jìn)行髁狀突的雙側(cè)對(duì)稱(chēng)性評(píng)價(jià)。髁狀突位置判斷依據(jù)Pullinger方法。測(cè)量結(jié)果采用樣本均數(shù)t檢驗(yàn),卡方檢驗(yàn)。 結(jié)果: 1.成人安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合實(shí)驗(yàn)組關(guān)節(jié)右側(cè)前間隙,上間隙,后間隙分別為1.71±0.75mm,2.37±0.69mm,2.47±0.54mm,左側(cè)分別為1.76±0.54mm,2.42±0.25mm,2.59±0.63mm;左右側(cè)各關(guān)節(jié)間隙差異無(wú)統(tǒng)計(jì)學(xué)意義。 2.成人安氏工類(lèi)錯(cuò)合對(duì)照組關(guān)節(jié)右側(cè)上間隙,前間隙,后間隙分別為2.19±0.62mm,1.69±0.60m,2.30±0.54mm,左側(cè)分別為2.24±0.33mm,1.65±0.34mm,2.28±0.63mm,左右側(cè)各關(guān)節(jié)間隙差異無(wú)統(tǒng)計(jì)學(xué)意義。 3.實(shí)驗(yàn)組安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合組髁狀突有88%為中性位,12%為后位;對(duì)照組84%為中性位,有8%處于前位,8%處于后位。經(jīng)統(tǒng)計(jì)學(xué)卡方檢驗(yàn)兩個(gè)組之間其錯(cuò)合分布差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。 4.安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合髁突頭部高度左、右側(cè)分別為3.45±0.57mm、3.37.±0.80mmm小于安氏Ⅰ類(lèi)合(左右側(cè)分別為3.77±2.21mm、3.76±0.22mm),差異有統(tǒng)計(jì)學(xué)意義(P0.05)。 5.安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合髁突頭部寬度左、右側(cè)分別為9.75±1.98、9.18±1.68大于安氏Ⅰ類(lèi)合(左右側(cè)分別為8.99±0.72、8.96±0.69),差異有統(tǒng)計(jì)學(xué)意義(P0.05) 6.安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合左、右側(cè)關(guān)節(jié)結(jié)節(jié)后斜面傾斜角度分別為21.83±1.82°、20.71±1.23。,成人安氏Ⅰ類(lèi)錯(cuò)合分別為23.65±1.96°、22.89±2.96°。安氏Ⅱ類(lèi)2分類(lèi)組錯(cuò)合關(guān)節(jié)結(jié)節(jié)后斜面傾斜角度小于正常合,二者關(guān)節(jié)結(jié)節(jié)后斜面傾斜角度差異無(wú)統(tǒng)計(jì)學(xué)意義。 7.安氏Ⅱ類(lèi)2分類(lèi)合左、右側(cè)髁狀突高度分別為15.90±1.30mm、15.89±1.32mm,小于安氏Ⅰ類(lèi)正常合(分別為16.83±1.48mm、16.81±1.95mm),差異有統(tǒng)計(jì)學(xué)意義(P0.05)。 8.安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合左、右側(cè)關(guān)節(jié)窩高度分別為7.69±0.68mm、7.79±0.58mm,小于安氏Ⅰ類(lèi)正常合(分別為8.69±0.22、8.20±0.82),差異有統(tǒng)計(jì)學(xué)意義(PO.05)。 9.安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合左、右側(cè)關(guān)節(jié)窩寬度分別為19.21±0.57mm、19.27±0.20mm,大于安氏Ⅰ類(lèi)正常合(分別為18.80±0.89、18.74±0.94),差異有統(tǒng)計(jì)學(xué)意義(P0.05)。 結(jié)論: 1.成年人安氏Ⅰ類(lèi)錯(cuò)合類(lèi)型其左右兩側(cè)關(guān)節(jié)間隙差別無(wú)統(tǒng)計(jì)學(xué)意義。 2.成年人骨性Ⅱ類(lèi)錯(cuò)合其關(guān)節(jié)間隙左右兩側(cè)差別無(wú)統(tǒng)計(jì)學(xué)意義。 3.成年人安氏Ⅱ類(lèi)2分類(lèi)錯(cuò)合類(lèi)型與安氏Ⅰ類(lèi)錯(cuò)合相比,其關(guān)節(jié)髁狀突位置無(wú)差別。
[Abstract]:Objective:
By comparing class II malocclusion with class II malocclusion of temporomandibular joint of normal volunteers in Shandong province, the relationship between class II malocclusion of temporomandibular joint and condylar fossa of temporomandibular joint in asymptomatic adults was studied.
Method:
Twenty-five adults (11 males, 14 females, 18-26 years old, with an average age of 22 years and no gender difference between groups) with skeletal Class II Angle Class 2 malocclusion were enrolled in this study. No symptoms of temporomandibular joint were found, and no obvious changes of temporomandibular joint structure were observed by X-ray examination in Schroeder's position.The skull was scanned by cone-beam CT (Sirona Model-No:6007269D3437) and reconstructed by Mimics 16.01 software. The depth and width of the fossa and the slope of the posterior oblique plane of the articular nodule were measured and analyzed, and the symmetry of the condyle was evaluated on the coronal images.
Result:
1. The right anterior, superior and posterior articular spaces were 1.71 (+ 0.75 mm), 2.37 (+ 0.69 mm), 2.47 (+ 0.54 mm) and 1.76 (+ 0.54 mm), 2.42 (+ 0.25 mm) and 2.59 (+ 0.63 mm) respectively, in the adult Angle Class II Class 2 malocclusion group.
2. The right superior joint space, anterior joint space, posterior joint space were 2.19 (+ 0.62 mm), 1.69 (+ 0.60 m), 2.30 (+ 0.54 mm), left joint space were 2.24 (+ 0.33 mm), 1.65 (+ 0.34 mm) and 2.28 (+ 0.63 mm), respectively.
3. 88% of the condyles were in the neutral position and 12% were in the posterior position in class II class 2 malocclusion group; 84% in the control group were in the neutral position, 8% in the anterior position and 8% in the posterior position.
4. The height of the condylar head in Angle II class 2 malocclusion was 3.45 (+ 0.57 mm) on the left and 3.37 (+ 0.80 mm) on the right, respectively, less than Angle I malocclusion (3.77 (+ 2.21 mm) on the left and 3.76 (+ 0.22 mm) on the right, respectively. The difference was statistically significant (P 0.05).
5. The width of the condylar head in Angle II class 2 malocclusion was 9.75 (+ 1.98) on the left and 9.18 (+ 1.68) on the right, respectively, larger than Angle I malocclusion (8.99 (+ 0.72) and 8.96 (+ 0.69) on the left and right, respectively. The difference was statistically significant (P 0.05).
6. Angle class II class 2 malocclusion left, right articular nodule posterior oblique angle were 21.83 [1.82], 20.71 [1.23], adult Angle class I malocclusion were 23.65 [1.96], 22.89 [2.96], Angle class II class 2 malocclusion posterior oblique angle of articular nodule was less than normal, there was no statistical difference between the two joint nodule posterior oblique angle. Learning meaning.
7. The height of the right condyle was 15.90 (+ 1.30 mm) and 15.89 (+ 1.32 mm) respectively, which were less than that of the normal group (16.83 (+ 1.48 mm) and 16.81 (+ 1.95 mm), respectively. The difference was statistically significant (P 0.05).
8. Angle II class 2 mismatched left, right articular fossa height was 7.69 + 0.68 mm, 7.79 + 0.58 mm, less than Angle I normal group (8.69 + 0.22, 8.20 + 0.82 respectively), the difference was statistically significant (PO.05).
9. Angle II class 2 was mismatched in left, and the width of right articular fossa was 19.21 (+ 0.57 mm) and 19.27 (+ 0.20 mm) respectively, which was larger than Angle I normal group (18.80 (+ 0.89) and 18.74 (+ 0.94), respectively. The difference was statistically significant (P 0.05).
Conclusion:
1. there was no significant difference in left and right joint space between adults and type 1 malocclusion types.
2. there was no significant difference in adult skeletal Class II malocclusion between the left and right sides of the joint space.
3. There was no difference in the position of the condyle between class II and class I malocclusions in adults.
【學(xué)位授予單位】:山東大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類(lèi)號(hào)】:R783.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 王美青,姚秀芳,顏朝云,張e,

本文編號(hào):2186846


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