【摘要】：目的 探討分別采用開放式導(dǎo)萌術(shù)和閉合式導(dǎo)萌術(shù)將腭側(cè)阻生尖牙成功導(dǎo)萌，并在固定矯治結(jié)束后，開放組與閉合組導(dǎo)萌后阻生尖牙及鄰牙牙周狀況的差異，，以及阻生側(cè)與健側(cè)尖牙及鄰牙牙周狀況的差異。方法 根據(jù)納入標(biāo)準(zhǔn)，選擇30例單側(cè)上頜腭側(cè)阻生尖牙患者，隨機(jī)分為兩組，每組15例，由同一名口腔外科醫(yī)生實(shí)施不同的外科暴露術(shù)式，一組選擇開放式導(dǎo)萌術(shù)，另一組選擇閉合式導(dǎo)萌術(shù)。由同一位正畸醫(yī)生對(duì)阻生尖牙牽引導(dǎo)萌，并進(jìn)行常規(guī)固定矯治排齊整平牙列。去除矯治器3-6個(gè)月后進(jìn)行牙周狀況的檢查，測(cè)量指標(biāo)包括阻生側(cè)和健側(cè)尖牙及鄰牙的牙周袋深度、齦退縮量、角化齦寬度、牙齦出血指數(shù)和骨支持量。包括兩個(gè)部分，實(shí)驗(yàn)一比較開放組與閉合組中阻生側(cè)牙周袋深度、齦退縮量、角化齦寬度、牙齦出血指數(shù)和骨支持量。實(shí)驗(yàn)二比較30例患者的阻生側(cè)(實(shí)驗(yàn)組)和健側(cè)(對(duì)照組)尖牙及鄰牙的牙周袋深度、齦退縮量、角化齦寬度、牙齦出血指數(shù)和骨支持量。 結(jié)果 實(shí)驗(yàn)一中開放組與閉合組的阻生尖牙及鄰牙的牙周袋深度、齦退縮量、角化齦寬度、牙齦出血指數(shù)和骨支持量之間的差異無統(tǒng)計(jì)學(xué)意義。開放組阻生尖牙的牽引萌出時(shí)間及正畸治療時(shí)間要短于閉合組，其差異有統(tǒng)計(jì)學(xué)意義。實(shí)驗(yàn)二中實(shí)驗(yàn)組與對(duì)照組比較可見側(cè)切牙DBP、DPP、PP，尖牙MBP、MPP、DPP，及第一前磨牙MBP、MPP的牙周袋深度差異有統(tǒng)計(jì)學(xué)意義；尖牙BP及PP的牙齦出血指數(shù)差異有統(tǒng)計(jì)學(xué)意義；側(cè)切牙DP及尖牙MP的骨支持量在實(shí)驗(yàn)組和對(duì)照組間有統(tǒng)計(jì)學(xué)意義的差異。 結(jié)論 外科暴露術(shù)式的選擇對(duì)導(dǎo)萌后腭側(cè)阻生尖牙和鄰牙的牙周狀況影響不大；導(dǎo)萌后的尖牙及鄰牙的牙周狀況較健側(cè)的牙周狀況略差。
[Abstract]:Objective to explore the differences of the periodontal status of impacted canine teeth in the open group and the closed group after the end of fixation and correction, respectively, using open and closed cupola guide surgery to guide the impacted teeth successfully, and to explore the difference between the open group and the closed group after the end of orthodontic treatment, and to explore the difference between the open group and the closed group. And the difference of periodontal status between impacted side and healthy side of canine teeth and adjacent teeth. Methods according to the inclusive criteria, 30 patients with unilateral maxillary impacted canine teeth were randomly divided into two groups: 15 patients in each group. The other group chose closed guided surgery. The same orthodontic doctor guided the treatment of impacted canine teeth. The periodontal condition was examined 3-6 months after removal of the appliance, including the periodontal pocket depth of impacted and healthy canine teeth and adjacent teeth, gingival retraction, keratinized gingival width, gingival bleeding index and bone support. There are two parts in experiment one: the depth of the impacted periodontal bag, the amount of gingival withdrawal, the width of keratinized gingival, the gingival bleeding index and the amount of bone support in the open group and the closed group. The second experiment was to compare the periodontal pocket depth, gingival withdrawal, keratinized gingival width, gingival bleeding index and bone support of 30 patients with impacted side (experimental group) and healthy side (control group). Results in experiment 1, there was no significant difference in the depth of periodontal bag, gingival retreat, keratinized gingival width, gingival bleeding index and bone support between the open group and the closed group. The time of distraction eruption and orthodontic treatment of impacted canine in open group was shorter than that in closed group, and the difference was statistically significant. In experiment 2, the periodontal bag depth of DBP,DPP,PP, canine MBP,MPP,DPP, and first premolar MBP,MPP in experimental group was significantly different from that in control group, the gingival bleeding index of BP and PP in canine teeth was significantly different. There was significant difference in bone support between experimental group and control group in DP and MP of lateral incisor. Conclusion the choice of surgical exposure has little effect on the periodontal status of impacted teeth and adjacent teeth, and the periodontal status of canine and adjacent teeth is slightly worse than that of normal side.
【學(xué)位授予單位】：鄭州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：R783.5

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