Influence of Concave Versus Convex Emergence Profiles on Midfacial Mucosal Stability—A Systematic Review With Meta‐Analysis
Miha Pirc, Priscilla Balzarini, Jonathan Esquivel, Anina N. Zuercher, Ronald E. Jung, Franz J. Strauss · 2026
Read Influence of Concave Versus Convex Emergence Profiles on Midfacial Mucosal Stability—A Systematic Review With Meta‐Analysis by Miha Pirc, Priscilla Balzarini, Jonathan Esquivel, Anina N. Zuercher, Ronald E. Jung, Franz J. Strauss (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13576815.txt.
Description
Miha Pirc and five colleagues review whether the curve of an implant crown where it exits the gum affects gum stability at the front of the mouth. Their 2026 systematic review with meta-analysis pooled trials of concave versus convex shapes. Single implants in the smile zone can suffer gum recession that spoils appearance.
Four trials with 144 implants and a year of follow-up were found, with 128 implants feeding the pooled maths. Convex shapes showed a trend toward more recession, by 0.31 millimetres on average, though the gap missed clear statistical significance. Leaving out one trial made the concave advantage significant at 0.43 millimetres in the same units. Results pointed the same way across studies. The authors advise concave contours during temporary and final restoration to protect soft tissue.
Catalog record
| CREATOR | Miha Pirc, Priscilla Balzarini, Jonathan Esquivel, Anina N. Zuercher, Ronald E. Jung, Franz J. Strauss |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 33711 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |