Banca de DEFESA: GEORGE ALEXANDRE DE BARROS LUCENA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE: GEORGE ALEXANDRE DE BARROS LUCENA
DATA: 04/06/2015
HORA: 14:00
LOCAL: Departamento de Odontologia
TÍTULO:

Microbiological profile of the internal surface of dental implants

PALAVRAS-CHAVES:

microbiology; colonization; checkerboard DNA-DNA hybridization

PÁGINAS: 30
GRANDE ÁREA: Ciências da Saúde
ÁREA: Odontologia
RESUMO:

Introduction: Infiltration of organic fluids and microorganisms at the abutment/implant interface may result in bacterial infection of peri-implant tissues. Internal colonization of periodontal pathogens may be caused by bacteria trapped during installation or penetration of abutment/implant leakage. The aim of this study was to detect periodontal pathogens in the internal area of dental implants before loading.

Materials and Methods: Seventy-eight implants in 32 partially edentulous subjects were selected for this evaluation. A bacterial biofilm sample of the internal surface of each implant was taken and analyzed for the presence of 40 microorganisms by checkerboard DNA-DNA hybridization, prior to installation of healing or any other prosthetic abutment.

Discussion: Bacteria were detected in 20 patients (62.5%), distributed in 41 implants (52.6%). Forty-seven percent of implants showed no bacterial detection. Spontaneous early implant exposure to oral cavity during the healing period was not significant (P >0.05) to increase bacterial prevalence, but implants placed at mandible had higher bacterial prevalence than maxillary ones.

Conclusion: The internal surface of dental implants can serve as a reservoir of periodontal pathogens for future implant/abutment interface.

MEMBROS DA BANCA:
Presidente - 2177264 - DELANE MARIA REGO
Interno - 350485 - HEBEL CAVALCANTI GALVAO
Externo à Instituição - MARIA GORETTI FREIRE DE CARVALHO - UnP