LILACS – Literatura Latinoamericana y del Caribe de Ciencias de la Salud | LILACS

Results: 42

The effect of scaffold hydroxyapatite derived from portunus pelagicus shell on the expression of fibroblast growth factor-2 (fgf-2) and bone morphogenetic proteins-2 (bmp -2) in the extraction sockets of cavia cobaya

J. oral res. (Impresa); 11 (5), 2022
Objetive: To determine the expression of Fibroblast Growth Factor (FGF)-2 and Bone Morphogenetic Protein (BMP)-2 after application of scaffold hydroxyapatite from Rajungan crab shell (Portunus pelagicus) in the tooth extraction socket of Cavia cobaya. Material and Methods: This study used a post-test onl...

Avaliação comparativa entre Endobon® e enxerto autógeno em seio maxilar humano: análise histomorfométrica, imunohistoquímica e Micro-CT

A reabsorção óssea progressiva e a pneumatização do seio maxilar podem impedir a instalação de implantes dentais e a reabilitação protética na região posterior da maxila. Técnicas cirúrgicas para a elevação da membrana sinusal e utilização de enxertos possibilitam a reconstrução óssea...

Histological comparison between biphasic calcium phosphate and deproteinized bovine bone on critical-size bone defects

Braz. dent. j; 32 (1), 2021
Abstract The limited options for bone repair have led to an extensive research of the field and the development of alloplastic and xenogeneic grafts. The purpose of this study was to evaluate bone repair with two bone substitutes: deproteinized bovine bone (DBB) and biphasic calcium phosphate ceramic (BC...

Horizontal ridge augmentation of a single atrophic site in the anterior maxilla using hydroxyapatite and rhBMP-2

Int. j. morphol; 38 (5), 2020
SUMMARY: Bone morphogenetic protein (rhBMP-2) is a powerful osteo-inductive growth factor widely used in bone reconstruction and both the vehicle used to administer it and the scaffold substrate could determine its success in clinical situations. The aim was to analyse the clinical behaviour of dental im...

Aloenxertos ósseos e enxerto sintético de hidroxiapatita em falha óssea ulnar em galinhas (Gallus gallus domesticus), aspectos radiográficos e histológicos

Dos atendimentos ortopédicos realizados em aves no HCV-UFRGS, 86% são fraturas, sendo aproximadamente 30% delas cominutivas com perda óssea expressiva, justificando a importância da utilização de enxertos em fraturas de aves. O objetivo deste trabalho foi avaliar dois aloenxertos e enxerto sintéti...

Desenvolvimento, caracterização e avaliação in vitro de cimento ósseo à base de nano hidroxiapatitas substituídas com magnésio, estrôncio e zinco

A incorporação de íons na estrutura da hidroxiapatita (HA) pode afetar sua estrutura, cristalinidade, solubilidade e citotoxicidade. Dentre os íons presentes na composição da apatita óssea, o magnésio (Mg2+), estrôncio (Sr2+) e zinco (Zn2+) são reconhecidos por promover a angiogênese e osteogÃ...

Comparison of subcutaneous inflammatory response to commercial and engineered zinc hydroxyapatite implants in rabbits

Hydroxyapatite (HA) is widely used as a biomaterial for bone repair and metallic prostheses coating. The main limitations of the current commercial synthetic hydroxyapatite compounds include high cost and decreased availability, especially for veterinary medicine purposes. Additionally, it is thought tha...

Optical properties of polyvinyl alcohol membrane with n-HAp for bio-medical applications

Prensa méd. argent; 105 (11), 2019
Composite membrane as a flexible materials have found diverse applications in industrial and biomedical simultaneously, the recent studies have shown intrinsic improvement for membrane properties by inclusion of nanoparticles as a fillers with high portion ratio in inorganic polymers, the combination bet...

Comparación de tres agentes remineralizantes utilizados en lesiones de manchas blancas en premolares medidos con fluorescencia láser: un estudio in vitro

Rev. cient. odontol; 7 (1), 2019
Objetivo: Evaluar la remineralización de lesiones de manchas blancas en el esmalte de premolares humanos a través de la fluorescencia láser utilizando el barniz de flúor al 5% (Duraphat®), la nanohidroxiapatita (Nano P®), y la combinación de ambos agentes, a los 3...

The effect of a 3% hydroxyapatite paste prophylaxis after different root-scaling procedures in periodontics

Abstract Introduction Root-scaling procedures on the root surface show to increase root surface roughness during instrumentation. The use of a prophylactic paste reduces the roughness. Objetive This study evaluated the influence of prophylaxis paste on the surface roughness of root dentin after hand inst...