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Healing patterns of alveolar bone following ridge preservation procedures.
MacBeth, Neil; Mardas, Nikos; Davis, Graham; Donos, Nikos.
Afiliación
  • MacBeth N; Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary University of London (QMUL), Bart's & The London School of Medicine & Dentistry, London, UK.
  • Mardas N; Defence Centre for Rehabilitative Dentistry, Defence Primary Health Care (DPHC), Dental Centre Aldershot, Guilford, Surry, UK.
  • Davis G; Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary University of London (QMUL), Bart's & The London School of Medicine & Dentistry, London, UK.
  • Donos N; Centre for Oral Bioengineering, Institute of Dentistry, QMUL, Bart's & The London School of Medicine & Dentistry, London, UK.
Clin Oral Implants Res ; 2024 Aug 06.
Article en En | MEDLINE | ID: mdl-39105326
ABSTRACT

OBJECTIVES:

Examine the histomorphometric bone composition, following alveolar ridge preservation techniques and unassisted socket healing. MATERIALS AND

METHODS:

Forty-two patients (42) requiring a single rooted tooth extraction were randomly allocated into three groups (n = 14 per group) Group 1 Guided Bone Regeneration (GBR) using deproteinised bovine bone mineral (DBBM) and a porcine collagen membrane; Group 2 Socket Seal (SS) technique using DBBM and a porcine collagen matrix; Group 3 Unassisted socket healing (Control). Trephined bone biopsies were harvested following a 4-month healing period. Forty-two samples underwent Back-Scattered Electrons -Scanning Electron Microscopy (BSE-SEM) imaging, with 15 samples examined using Xray Micro-Tomography (XMT) (n = 6 for each GBR/SS and n = 3 Control). Images were analysed to determine the percentage (%) of connective tissue, new bone formation, residual DBBM particles and direct bone to DBBM particle contact (osseointegration).

RESULTS:

BSE-SEM analysis demonstrated that new bone formation was higher in the Control (45.89% ± 11.48) compared to both GBR (22.12% ± 12.7/p < .004) and SS (27.62% ± 17.76/p < .005) groups. The connective tissue percentage in GBR (49.72% ± 9), SS (47.81% ± 12.57) and Control (47.81% ± 12.57) groups was similar. GBR (28.17% ± 16.64) and SS (24.37% ± 18.61) groups had similar levels of residual DBBM particles. XMT volumetric analysis indicated a lower level of bone and DBBM particles in all test groups, when matched to the BSE-SEM area measurements. Osseointegration levels (DBBM graft and bone) were recorded at 35.66% (± 9.8) for GBR and 31.18% (± 19.38) for SS.

CONCLUSION:

GBR and SS ARP techniques presented with less bone formation when compared to unassisted healing. GBR had more direct contact/osseointegration between the DBBM particles and newly formed bone.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Clin Oral Implants Res Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Dinamarca
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Clin Oral Implants Res Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Dinamarca