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Can hyaluronan injections augment deficient papillae at implant‐supported crowns in the anterior maxilla? A randomized controlled clinical trial with 6 months follow‐up
Author(s) -
Bertl Kristina,
Gotfredsen Klaus,
Jensen Simon S.,
Bruckmann Corinna,
Stavropoulos Andreas
Publication year - 2017
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/clr.12917
Subject(s) - medicine , visual analogue scale , major duodenal papilla , anterior maxilla , dentistry , implant , maxilla , randomized controlled trial , saline , anterior teeth , surgery , anesthesia
Abstract Objectives The present randomized controlled trial aimed to assess the effect of hyaluronan ( HY ) injections to augment deficient interproximal papillae at implant‐supported crowns in the anterior maxilla. Methods Twenty‐two patients with a deficient papilla in the anterior maxilla next to an implant‐supported crown were randomly assigned to receive twice either HY (test) or saline solution (control) injection. The following parameters were recorded prior to injection (baseline) and 3 and 6 months after injection: distance between the papilla tip and contact point ( PT ‐ CP ), modified papilla index score ( MPIS ), and standard clinical periodontal parameters. Pain level after injection was recorded on a visual analogue scale ( VAS ). The deficient area was evaluated on clinical photographs, and the esthetic appearance was recorded on a VAS . Differences in mucosal volume were assessed after 3 months by intraoral scans. The bone level was assessed on periapical radiographs. Results No differences were observed between groups, neither at baseline nor at 3 and 6 months post‐treatment. Mean PT ‐ CP ranged between 1.8 mm and 2.3 mm without significant differences between groups or over time within groups; MPIS was 2 for all patients at all time points. Similarly, insignificant differences between groups or time points were observed for deficient area, gingival volume changes, bone level, and esthetic appearance. There were no differences in pain level between groups during injection, but discomfort after injection lasted longer in the test group. Conclusions Injection of HY adjacent to maxillary anterior implant‐supported crowns did not result in any clinical conspicuous volume augmentation of deficient papillae.