Immediately restored single implants in the aesthetic zone of the maxilla using a novel design: 5-year results from a prospective single-arm clinical trial.
Clin Implant Dent Relat Res
; 21(2): 344-351, 2019 Apr.
Article
em En
| MEDLINE
| ID: mdl-30767417
ABSTRACT
BACKGROUND:
Single implant crowns have become the preferred rehabilitation treatment option for replacing a missing tooth.PURPOSE:
This study evaluates 5-year clinical success of using tilted implants placed immediately after extraction followed by rehabilitation with all-ceramic crowns. MATERIALS ANDMETHODS:
Twenty-seven participants requiring 28 single implant crowns in the aesthetic zone of maxilla were recruited to participate in a single-arm clinical trial. All participants were rehabilitated according to immediate implant placement using CP grade 4 titanium implants with roughened surfaces and a 12°-angled platform. Provisional implant crowns were connected within 4 hours of implant placement and loaded according to progressive loading protocol. At 8 weeks (baseline), definitive screw-retained crowns fabricated using densely sintered zirconia abutments with the veneering porcelain were delivered. Participants were followed up to 5 years and 16 participants with 17 single implant crowns attended Year 5 recall. Data collection included changes in marginal bone levels (MBLs), mid-buccal mucosal levels (MBMLs), implant stability quotient (ISQ) values, and any prosthodontic maintenance issues.RESULTS:
The mean changes in MBLs at each recall was bone fill of 0.5 ± 1.18 mm (surgery-baseline), increase of 0.1 ± 0.57 mm (baseline-Year 1), and marginal bone loss of 0.1 ± 0.25 mm (Years 1-5). A minimal change occurred with the MBMLs during the observation period. The mean ISQ value at each time point increased from 65.1 (implant placement), to 67.4 (baseline) and 69.9 (Years 1 and 5). Prosthodontic maintenance issues occurred only during the first year which included fracture of veneering ceramic and zirconia abutment as well as aesthetic concerns.CONCLUSIONS:
Within the limitations of this study, the data collected would suggest that replacing a single missing tooth using titanium oral implants with 12° platform tilt and zirconia abutments can be a successful rehabilitation option in the esthetically demanding zone of anterior maxilla.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Perda do Osso Alveolar
/
Implantes Dentários para Um Único Dente
/
Carga Imediata em Implante Dentário
/
Maxila
Tipo de estudo:
Guideline
/
Observational_studies
/
Prognostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article