應(yīng)用不同印模技術(shù)制取固定修復(fù)印模的臨床效果評價
發(fā)布時間：2018-08-28 12:35
【摘要】：目的通過對印模頸緣清晰度的比較，評價不同印模技術(shù)在固定修復(fù)印模制取中的臨床效果。 方法選取2012年12月-2014年1月來大連醫(yī)科大學(xué)附屬口腔醫(yī)院修復(fù)科就診的固定修復(fù)患者35例，基牙83顆。女性15例，，男性20例，其中年齡最小22歲，年齡最大58歲，平均年齡36.5歲。根據(jù)患者就診順序，依次選擇取模方法：①成品托盤+藻酸鹽+瓊脂印模材（A組，基牙26顆）、②成品托盤+硅橡膠印模材（B組，基牙30顆）、③成品托盤+個齒托盤+硅橡膠印模材（C組，基牙27顆）。首先進行口腔專科檢查，排除口腔衛(wèi)生狀況不佳、基牙松動、牙齦炎、牙周炎等影響印模清晰度的患者。然后進行常規(guī)金屬烤瓷全冠牙體預(yù)備，頸緣位于齦下約0.5mm，全周135°肩臺，寬度約為1mm，軸面牙合向聚合2°~5°。均在不排齦的情況下制取印模。根據(jù)印模頸緣的評定標(biāo)準(zhǔn)進行分級并記錄，所得數(shù)據(jù)使用SPSS-19.0軟件，在ɑ=0.05檢驗水準(zhǔn)下，使用Kruskal-Wallis秩和檢驗進行統(tǒng)計學(xué)分析。 結(jié)果根據(jù)印模頸緣評定標(biāo)準(zhǔn)，IV級不合格僅出現(xiàn)在A、B組中，分別為4例和3例。另外A組中除2例I級優(yōu)秀外，其余20例為II級優(yōu)良和III級合格。B組中I級優(yōu)秀和II級優(yōu)良均為10例，III級合格為7例。而C組中III級合格僅為2例，其余25例為I級優(yōu)秀和II級優(yōu)良，并且未發(fā)現(xiàn)不合格的IV級印模。 經(jīng)對上述結(jié)果應(yīng)用SPSS-19.0統(tǒng)計軟件進行Kruskal-Wallis秩和檢驗結(jié)果（見表2及圖2）顯示：3個實驗組之間存在統(tǒng)計學(xué)差異（P0.05）；再經(jīng)組間多重比較（見表3）顯示：除A、B兩組印模頸緣精度差異無統(tǒng)計學(xué)意義（p0.05）外，其它各組間均存在統(tǒng)計學(xué)差異（P0.05）。 結(jié)論與成品托盤聯(lián)合藻酸鹽瓊脂印模材技術(shù)和成品托盤聯(lián)合硅橡膠印模技術(shù)相比，個齒托盤硅橡膠印模技術(shù)可更準(zhǔn)確的復(fù)制固定修復(fù)預(yù)備體肩臺及肩臺下的解剖結(jié)構(gòu)，得到更完整的印模齦溝翼，臨床取模效果更好。
[Abstract]:Objective to evaluate the clinical effect of different impression techniques in fixing and repairing impression by comparing the definition of impression neck margin. Methods from December 2012 to January 2014, 35 patients with 83 abutments were selected from Department of Restoration, affiliated Stomatology Hospital of Dalian Medical University. 15 cases were female, 20 cases were male, the age was the youngest 22 years, the oldest 58 years old, the average age was 36.5 years old. According to the order of the patients' visit to the hospital, the method of taking out the mould in turn was selected as follows: 1 finished product alginate Agar impression material (A group, 26 abutment teeth) and 2 finished tray silicone rubber impression material (group B). There were 30 abutment teeth and 27 abutment teeth in group C, the finished product tray was made of silicone rubber impression material (group C, 27 abutments). First of all, oral examination was performed to exclude patients with poor oral hygiene, loose abutment, gingivitis and periodontitis. The cervical margin was about 0.5 mm in the subgingival region, the width was about 1 mm in the whole circumference of 135 擄shoulder abutment, and the axial surface occlusion was converging to 2 擄or 5 擄. All in the case of no gingival impression. According to the evaluation criteria of the neck margin of the impression, the data were classified and recorded. The data were analyzed statistically by using SPSS-19.0 software and Kruskal-Wallis rank sum test under the level of 0.05 test. Results according to the evaluation criteria of impression neck margin, grade IV substandard only appeared in group A (4 cases) and group B (3 cases). In group A, except for 2 cases of excellent grade I, 20 cases were excellent in II grade and 7 cases in grade I and II grade in group B, respectively. In group C, only 2 cases were qualified in III grade, 25 cases were excellent in grade I and excellent in grade II, and no unqualified IV impression was found. The results of Kruskal-Wallis rank sum test with SPSS-19.0 software (see table 2 and figure 2) showed that there were statistical differences among the three experimental groups (P0.05). The multiple comparisons between the groups (see table 3) showed that there was no significant difference in the accuracy of the impression neck margin between the two groups (p0.05), but there were statistical differences among the other groups (P0.05). Conclusion compared with the technology of finished tray combined with alginate Agar and the technology of finished pallet and silicone rubber impression, the technology of single tooth tray silicone rubber impression can more accurately copy and fix the anatomic structure of shoulder table and shoulder table of the preparatory body. A more complete impression of gingival sulcus wing, clinical mold removal effect is better.
【學(xué)位授予單位】：大連醫(yī)科大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：R783
本文編號：2209417
[Abstract]:Objective to evaluate the clinical effect of different impression techniques in fixing and repairing impression by comparing the definition of impression neck margin. Methods from December 2012 to January 2014, 35 patients with 83 abutments were selected from Department of Restoration, affiliated Stomatology Hospital of Dalian Medical University. 15 cases were female, 20 cases were male, the age was the youngest 22 years, the oldest 58 years old, the average age was 36.5 years old. According to the order of the patients' visit to the hospital, the method of taking out the mould in turn was selected as follows: 1 finished product alginate Agar impression material (A group, 26 abutment teeth) and 2 finished tray silicone rubber impression material (group B). There were 30 abutment teeth and 27 abutment teeth in group C, the finished product tray was made of silicone rubber impression material (group C, 27 abutments). First of all, oral examination was performed to exclude patients with poor oral hygiene, loose abutment, gingivitis and periodontitis. The cervical margin was about 0.5 mm in the subgingival region, the width was about 1 mm in the whole circumference of 135 擄shoulder abutment, and the axial surface occlusion was converging to 2 擄or 5 擄. All in the case of no gingival impression. According to the evaluation criteria of the neck margin of the impression, the data were classified and recorded. The data were analyzed statistically by using SPSS-19.0 software and Kruskal-Wallis rank sum test under the level of 0.05 test. Results according to the evaluation criteria of impression neck margin, grade IV substandard only appeared in group A (4 cases) and group B (3 cases). In group A, except for 2 cases of excellent grade I, 20 cases were excellent in II grade and 7 cases in grade I and II grade in group B, respectively. In group C, only 2 cases were qualified in III grade, 25 cases were excellent in grade I and excellent in grade II, and no unqualified IV impression was found. The results of Kruskal-Wallis rank sum test with SPSS-19.0 software (see table 2 and figure 2) showed that there were statistical differences among the three experimental groups (P0.05). The multiple comparisons between the groups (see table 3) showed that there was no significant difference in the accuracy of the impression neck margin between the two groups (p0.05), but there were statistical differences among the other groups (P0.05). Conclusion compared with the technology of finished tray combined with alginate Agar and the technology of finished pallet and silicone rubber impression, the technology of single tooth tray silicone rubber impression can more accurately copy and fix the anatomic structure of shoulder table and shoulder table of the preparatory body. A more complete impression of gingival sulcus wing, clinical mold removal effect is better.
【學(xué)位授予單位】：大連醫(yī)科大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：R783
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