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A comparative study to evaluate the effect of two different abutment designs on soft tissue healing and stability of mucosal margins
Author(s) -
Patil Ratnadeep,
van Brakel Ralph,
Iyer Kavita,
Huddleston Slater James,
de Putter Cornelis,
Cune Marco
Publication year - 2013
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2011.02335.x
Subject(s) - soft tissue , dentistry , abutment , medicine , orthodontics , surgery , engineering , structural engineering
Aim To evaluate the effect of two different abutment designs on soft tissue healing and the stability of the mucosal margin in vivo . Materials and methods Twenty‐nine subjects received two, non‐adjacent endosseous implants in the esthetic zone. Subsequently, conventional (control) and curved abutments (experimental) were placed in combination with a temporary restoration (left–right randomization). Plaster models of the healed sites were made to assess the stability of the soft tissues at baseline and after 6 weeks. To measure deseating force, a dontrix gauge was used while removing the abutments after 6 weeks. Results Although visually, differences in the transmucosal area were observed, the differences in marginal recession and in deseating force between abutments from the experimental and the control group never reached a statistically significant level. In general, some gain in soft tissue height was seen in both groups. Angled abutments elicited recession at all buccal sites ( P = 0.003–0.02). Conclusion Abutments with a circumferential groove do not lead to a different response of the mucosal margin compared with a regular abutment, and are no more resistant upon removal than regular abutments after 6 weeks of function.