The effect of resorbable membranes on one-stage ridge augmentation in anterior single-tooth replacement: A randomized, controlled clinical trial
| Autor: | Justin T. van der Tas, Eppo B. Wolvius, Brend P Jonker, Justin Pijpe |
|---|---|
| Přispěvatelé: | Oral and Maxillofacial Surgery |
| Rok vydání: | 2018 |
| Předmět: |
Male
Radiography Dentistry Dehiscence 03 medical and health sciences 0302 clinical medicine Patient satisfaction Dental Implants Single-Tooth Surgical Wound Dehiscence Humans Medicine 030212 general & internal medicine Augmentation procedure business.industry Dental Implantation Endosseous Soft tissue One stage Membranes Artificial 030206 dentistry Buccal administration Alveolar Ridge Augmentation Single tooth Middle Aged Clinical trial Treatment Outcome Otorhinolaryngology Patient Satisfaction Resorbable membranes Ridge (meteorology) Female Surgery Implant Dental Prosthesis Implant-Supported Oral Surgery business |
| Zdroj: | Clinical Oral Implants Research, 29(2), 235-247. Blackwell Publishing |
| ISSN: | 0905-7161 |
| Popis: | Aim: To evaluate the effect of resorbable membranes on one-stage ridge augmentation procedures in small (2-4 mm) buccal bony dehiscences in anterior maxillary single-tooth replacement. Materials and methods: Patients with a buccal bony dehiscence after implant placement in the esthetic zone were randomly allocated to one-stage ridge augmentation with (M+) or without a membrane (M-). Second-phase surgery was performed after 8 weeks, and follow-up was performed 1, 6, and ≥12 months after loading. Outcomes included implant survival and success, complications, clinical and radiographic parameters, esthetic results and patient satisfaction. Results: Fifty-two patients were randomized to one-stage ridge augmentation with (n = 25) or without use of a membrane (n = 27). No significant differences in implant survival and success have been observed. The risk of having a small mucosal dehiscence was more than six times higher in the M+ group than in the M- group (RR 6.24, 95% CI 0.81 to 48.21). At the last follow-up, the bleeding index (BI) was marginally higher in the M+ group (14/9/2/0) compared to the M- group (24/2/0/0) (U = 205, Z = -2.97, p = .003, r = .42). The median change in marginal bone level was statistically lower in the M+ group (0.06 mm) than the M- group (0.60 mm) at last follow-up (U = 120, Z = -2.73 a p = .006 r = .42). Total pink esthetic index (PES) and white esthetic score (WES) and combined PES/WES were not significantly different between treatment groups at more than 12 months after loading. Only the subcategory root convexity/soft tissue color scored significantly lower in the M+ group (1.5) compared to the M- group (2.0) at the last follow-up (U = 172, Z = -2.34, p = .019 r = .34). No differences were found in patient satisfaction. Conclusion: The use of a resorbable membrane in small buccal bony dehiscences in anterior maxillary single-tooth replacement resulted in less marginal bone loss, but showed more mucosal dehiscences, higher bleeding scores and lower scores on root convexity and soft tissue color after at least one year of loading. No effect was seen on implant survival and success, overall esthetic results, and patient satisfaction. The research protocol was registered at the Dutch Trial Register (NTR) with ID NTR6137. |
| Databáze: | OpenAIRE |
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