中国实用口腔科杂志 ›› 2010, Vol. 3 ›› Issue (09): 540-542.

• 论著 • 上一篇    下一篇

印模材联合排龈线法对前牙全瓷冠修复效果影响的研究

  

  1. 山西医科大学口腔医院修复科,山西  太原  030001
  • 收稿日期:2010-07-24 修回日期:2010-08-28 出版日期:2010-09-15 发布日期:2010-10-14

  • Received:2010-07-24 Revised:2010-08-28 Online:2010-09-15 Published:2010-10-14

摘要:

目的    比较双线排龈法和印模材联合排龈线法对前牙全瓷冠修复效果的影响。方法    选择2008年9月至2010年5 月山西医科大学口腔医院修复科门诊就诊的行前牙全瓷冠修复患者106例(181颗基牙),随机分为对照组(89颗)和试验组(92颗),对照组应用双线排龈法,试验组应用印模材联合排龈线法。排龈后制取印模,灌注模型,完成修复体。对牙预备体肩台及龈沟、牙龈止血效果、印模、模型清晰程度和修复体边缘适合性进行综合评价。结果    双线排龈组与印模材联合排龈线组比较,预备体肩台及龈沟、印模、工作模型肩台及软硬组织界限、修复体适合性的满意率差异均无统计学意义(P > 0.05);而牙龈止血效果满意率差异有统计学意义(χ2 =11.239,P < 0.05)。印模材联合排龈线组的牙龈止血效果明显优于双线排龈组。结论    双线排龈法和印模材联合排龈线法均为较好的排龈方法,但在牙龈止血效果方面,印模材联合排龈线法表现出明显的优越性。

关键词: 排龈, 肩台, 全瓷冠

Abstract:

Objective    To compare the effect of two kinds of gingival retraction techniques on anterior all-ceramic crown prosthetics. Methods    A total of 181 teeth in 106 patients in the Department of Prosthodontics of Shanxi Medical University from September 2008 to May 2010 were randomly divided into control group (89) and test group (92);the control group was treated with two-retraction,and the test group was done with the impression material combined with gingival retraction cord. After the tooth preparation for fixed prosthesis,silicone impressions and casts were made, and the restorations were finished. The situation of preparation,gingival hemostasis effect , the effect of sulcular opening on the casts and marginal adaptation of restorations were comprehensively observed between the two groups. Results    These two kinds of gingival retraction techniques can both achieve satisfactory effects of preparation,impression, casts and restorations(P > 0.05). But significant differentiations were showed in hemostasis effect(χ2=11.239,P < 0.05). Conclusion    These two gingival retraction techniques can both help to acquire the clear impression,cast and restoration. But the impression material combined with gingival retraction cord has shown significantly better quality in hemostasis effect.

Key words: Gingival retraction;shoulder;all-ceramic crown