Comparison on the efficacy of Er:YAG laser gingival retraction method and gingival retraction cord for dental restoration
- VernacularTitle:Er：YAG激光排龈法与排龈线排龈法在口腔修复应用中的疗效比较
- Author:
Shuying GUAN
1
Author Information
1. 山西职工医学院口腔系
- Keywords:
Er:YAG laser gingival extraction method;
Gingival extraction effect;
Periodontal health
- From:
China Modern Doctor
2014;(18):157-159
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the gingival retraction effect of Er:YAG laser gingival retraction method and gingival retraction cord. Methods One hundred teeth requiring sub-gingival margin single-crown restoration in Stomatological Hospital of Shanxi Medical University were selected and randomly assigned to Group A and Group B with 50 teeth in each group. Group A and Group B were given gingival retraction cord and Er:YAG laser gingival retraction method. The satisfaction evaluation on gingival retraction effects and the number of patients feeling pain or discomfort during opera-tion were compared between the two groups. Gingival bleeding index (GBI) and periodontal pocket depth (PD) were ap-plied to evaluate the impact of the two methods on periodontal health. Results The two groups had no statistical differ-ence with regard to tooth preparation, impression and model satisfaction (P>0.05). Group B had significantly better gin-gival hemostasis effects than Group A (P<0.05). Group B had fewer patients with pain (12%) than Group A (92%) (P<0.05). There was statistical difference with regard to GBI value and PD value before and after treatment for each method and between two methods(P<0.05). Conclusion Both gingival extraction methods can achieve excellent gingival extraction effects. Er:YAG laser gingival extraction method can reduce gingival bleeding, cause less pain on patients during operation, and have less impact on periodontal health.
