Soft tissue contour changes at implant sites with or without soft tissue grafting in the esthetic zone: A retrospective case-control study with a 12-year follow-up.

Autor: Bienz SP; Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland., Carrera ER; Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland.; School of Dentistry, Universidad de Las Américas (UDLA), Quito, Ecuador., Hüsler J; Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland., Roccuzzo A; Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland.; Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland., Jung RE; Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland., Thoma DS; Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland.
Jazyk: angličtina
Zdroj: Clinical oral implants research [Clin Oral Implants Res] 2023 May; Vol. 34 (5), pp. 521-530. Date of Electronic Publication: 2023 Mar 07.
DOI: 10.1111/clr.14058
Abstrakt: Objectives: To evaluate the volumetric changes and peri-implant health at implant sites with and without previous soft tissue grafting over a 12-year observation period.
Materials and Methods: Eighteen patients received dental implants and simultaneously guided bone regeneration in the esthetic zone (15-25) for dental rehabilitation. Three months following implant placement, 8 patients (test) received an additional subepithelial connective tissue graft, whereas 10 patients (control) did not receive any additional treatment. One week after prothesis delivery and at the 5 and 12 years follow-up examination, impressions were taken. Obtained casts were processed for profilometric and linear analyses. The mean distance (MD) in the mid-buccal area between the two surfaces was considered the primary outcome. Peri-implant health was assessed based on clinical and radiographic data.
Results: Nine female and 7 male patients were re-assessed after a median follow-up time of 144.5 months (Min: 114.8; Max: 213.0). The median reduction of MD amounted to -0.81 mm (Min: -1.39; Max: 0.52) in the test group and -0.56 mm (Min: -0.93; Max: 0.11) in the control group, (intergroup comparison p = .607, CI 95%: -0.760/0.530). None of the implants was diagnosed with peri-implantitis. Six tests and two control implants were diagnosed with peri-implant mucositis (p = .103).
Conclusions: Despite the limited number of included patients, similar results in terms of volumetric, linear changes, and peri-implant conditions could be detected at implant sites with or without soft tissue grafting over a period of 12 years.
(© 2023 The Authors. Clinical Oral Implants Research published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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