Histological Outcomes on the Development of New Space-making Devices for Maxillary Sinus Floor Augmentation


Autoria(s): CRICCHIO, Giovanni; PALMA, Vinicious Canavarros; FARIA, Paolo E. P.; OLIVERA, Jose Americo de; LUNDGREN, Stefan; SENNERBY, Lars; SALATA, Luiz A.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

19/10/2012

19/10/2012

2011

Resumo

Background: Previous studies have pointed out that the mere elevation of the maxillary sinus membrane promotes bone formation without the use of augmentation materials. Purpose: This experimental study aimed at evaluating if the two-stage procedure for sinus floor augmentation could benefit from the use of a space-making device in order to increase the bone volume to enable later implant installation with good primary stability. Materials and Methods: Six male tufted capuchin primates (Cebus apella) were subjected to extraction of the three premolars and the first molar on both sides of the maxilla to create an edentulous area. The sinuses were opened using the lateral bone-wall window technique, and the membrane was elevated. One resorbable space-making device was inserted in each maxillary sinus, and the bone window was returned in place. The animals were euthanatized after 6 months, and biopsy blocks containing the whole maxillary sinus and surrounding soft tissues were prepared for ground sections. Results: The histological examination of the specimens showed bone formation in contact with both the schneiderian membrane and the device in most cases even when the device was displaced. The process of bone formation indicates that this technique is potentially useful for two-stage sinus floor augmentation. The lack of stabilization of the device within the sinus demands further improvement of space-makers for predictable bone augmentation. Conclusions: It is concluded that (1) the device used in this study did not trigger any important inflammatory reaction; (2) when the sinus membrane was elevated, bone formation was a constant finding; and (3) an ideal space-making device should be stable and elevate the membrane to ensure a maintained connection between the membrane and the secluded space.

Fapesp (The State of Sao Paulo Research Foundation, Brazil)[06/01322-8]

Identificador

CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH, v.13, n.3, p.224-230, 2011

1523-0899

http://producao.usp.br/handle/BDPI/26416

10.1111/j.1708-8208.2009.00208.x

http://dx.doi.org/10.1111/j.1708-8208.2009.00208.x

Idioma(s)

eng

Publicador

WILEY-BLACKWELL

Relação

Clinical Implant Dentistry and Related Research

Direitos

restrictedAccess

Copyright WILEY-BLACKWELL

Palavras-Chave #augmentation #bone formation #endosseous implants #maxillary sinus #sinus membrane elevation #PERIODONTALLY COMPROMISED PATIENTS #GUIDED TISSUE REGENERATION #MEMBRANE ELEVATION #CYANOACRYLATE #FIXATION #ADHESIVE #IMPLANTS #Dentistry, Oral Surgery & Medicine
Tipo

article

original article

publishedVersion