Universidad Complutense de Madrid
E-Prints Complutense

Cemented and screw-retained implant-supported single-tooth restorations in the molar mandibular region: A retrospective comparison study after an observation period of 1 to 4 years

Impacto

Downloads

Downloads per month over past year

Ferreiroa Navarro, Alberto and Peñarrocha-Diago, Miguel and Pradíes Ramiro, Guillermo and Sola-Ruiz, María Fernanda and Agustín Panadero, Rubén (2014) Cemented and screw-retained implant-supported single-tooth restorations in the molar mandibular region: A retrospective comparison study after an observation period of 1 to 4 years. Journal of clinical and experimental dentistry, 7 (1). e89-e94. ISSN 1989-5488

[img]
Preview
PDF
1MB

Official URL: http://dx.doi.org/10.4317/jced.51708




Resumen (otros idiomas)

Objectives: The aim of this study was to evaluate the survival and compare the appearance of different mechanical and biological complications, in screw-retained and cemented-retained single-tooth implant-supported restorations licalized in the molar mandibular region, over a period of 1 to 4 years. Material and methods: A retrospective study was carried out with a total of eighty implant-supported restorations, which were placed in eighty patients for prosthetic rehabilitation of a mandibular molar. Forty patients were rehabilitated with a cemented-retained restoration and the other forty with a screw-retained restoration. The presence of the following complications was recorded for both types of prostheses: Fractures of the ceramic veneering , loosening screws, mucositis and peri-implantitis. Debonding of the restoration was analyzed in the cemented-retained restoration group. The clinical survival of crowns was analyzed with a Kaplan-Meier test and the clinical complications were compared, using a Student t test and Log-rank test. Results: 27 patients registered some complication. The average rate of complications was 37,5% for cemented-retained restorations and 30% for screw-retained restorations. the complications more common in the cemented-retained restoration were the presence of mucositis (14,87%), while in the screw-retained restorations was the loosening screw (20%). Student t test and Log-Rank test found significant differences (p=0,001) between the screw loosening and presence of mucositis. Conclusions: The cemented-retained restorations seem to prevent screww loosening, but the presence of cement seem to increase the complications around the soft tissues, however in the screw-retained restorations the presence of mucositis and peri-implantitis are lower than cemented-retained restorations. The incidence of fracture of ceramic veneering was similar in both groups.

Item Type:Article
Uncontrolled Keywords:Screw-retained restorations, cemented-retained restorations, screw loosening, peri-implant diseases, fractures ceramic veneering
Subjects:Medical sciences > Dentistry > Dental implants
ID Code:29700
Deposited On:22 Apr 2015 11:14
Last Modified:23 Apr 2015 08:22

Origin of downloads

Repository Staff Only: item control page