Marginal Bone Loss in Implants with External Connection versus Internal Conical Connection Prior to Prosthetic Loading. A Randomized Clinical Study
| Autor: | José López-López, Natalia Palacios-Garzón, José María Anglada-Cantarell, Raul Ayuso-Montero, Enric Jané-Salas |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
medicine.medical_treatment Dentistry 02 engineering and technology Prosthesis Prosthodontics Bone remodeling law.invention Clinical study 03 medical and health sciences 0302 clinical medicine internal connection preload prosthesis Randomized controlled trial law Materials Chemistry medicine External connection external connection Internal connection bone remodeling Implants dentals business.industry Dental implants 030206 dentistry Surfaces and Interfaces 021001 nanoscience & nanotechnology Surfaces Coatings and Films Prostodòncia Resonance frequency analysis peri-implant bone loss lcsh:TA1-2040 0210 nano-technology business lcsh:Engineering (General). Civil engineering (General) |
| Zdroj: | Coatings, Vol 10, Iss 1044, p 1044 (2020) Dipòsit Digital de la UB Universidad de Barcelona Coatings Volume 10 Issue 11 |
| ISSN: | 2079-6412 |
| Popis: | Introduction: The prosthetic connection of implants has been related to the loss of marginal bone. The aim of this study was to evaluate bone loss around external connection (EC) and internal conical connection (ICC) implants prior to prosthetic loading. Material and methods: A randomized clinical trial (RCT) was carried out, with a sample size of 93 implants (31 EC and 62 ICC) placed in 27 patients. Radiological controls were performed and stability was measured by resonance frequency analysis (RFA) on the day of placement, at 1 month and at 4 months after the placement. Results: Bone loss in EC implants was not statistically different than in ICC implants between the time of placement (T0) and the subsequent month (T1): (EC = 0.18 mm and ICC = 0.17 mm). Between one month (T1) and four months (T2): (EC = 0.39 mm and ICC = 0.19 mm) this difference was highly significant (p = 0.00). Bone loss between T0 and T2 was significantly lower in the ICC (EC = 0.57 mm and ICC = 0.36 mm), (p = 0.01). The overall success rate of the implants was 97.8%. The stability of the implants increased from 70.69 (T0) to 73.91 (T1) and 75.32 (T2). Conclusions: ICC showed less bone loss up to the time of prosthesis placement. Such bone loss did not have a significant impact on bone stability. Long term RCTs are needed to demonstrate whether this bone loss, which is more pronounced at the beginning in EC, tends to stabilize and equate to ICC. |
| Databáze: | OpenAIRE |
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