Effect of 2 mm short healing abutment in early implant bone increment in anterior teeth aesthetic area

doi:10.19438/j.cjoms.2021.06.009

Abstract

Abstract: PURPOSE: To evaluate the effect of 2 mm short healing abutment on incremental preservation of labial bone during early implantation in the aesthetic area of anterior teeth. METHODS: From August, 2018 to May, 2019, fifty patients were treated in the Department of Dental Implantation, Affiliated Hospital of Qingdao University. All patients in the experimental group were treated with 2 mm short healing abutment, while patients in the control group were treated with closed screws. The patients were followed up for 18 months. The changes of bone mass at the level of 0, 3 and 6 mm from the labial side of the anterior teeth area to the shoulder of the implant were compared between the two groups 6 and 18 months after operation, and implant retention rate, pink aesthetic score(PES) and improved gingival sulcus bleeding index (mSBI) were compared between the two groups 18 months after operation. SPSS 26.0 software package was used for statistical analysis of the data. RESULTS: After 6 months and 18 months, the changes of bone mass in the labial shoulder of the experimental group were significantly lower than those in the control group(P<0.05). There was no significant difference in other loci. Eighteen months after operation, the retention rate of implants in both groups was 100%. PES in the experimental group was significantly higher than that in the control group(P>0.05). There was no significant difference in mSBI between the two groups. CONCLUSIONS: Low healing abutment has obvious effect on preserving the labial bone mass and maintaining soft tissue morphology in the aesthetic area of anterior teeth, which is worthy of clinical promotion.

Key words: Planting in aesthetic area, Healing abutment, Horizontal bone increment, Guide bone regeneration

LI Jing, MEI Dong-mei, JIANG Ya-ping, XU Hao, WANG Wen-xue, YAO Chen-yang, LI Ya-nan, ZHAO Bao-dong. Effect of 2 mm short healing abutment in early implant bone increment in anterior teeth aesthetic area[J]. China Journal of Oral and Maxillofacial Surgery, 2021, 19(6): 531-535.

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