Bone Ceramic (R) at Implants Installed Immediately into Extraction Sockets in the Molar Region: An Experimental Study in Dogs

Autor(es)

Pereira, Flavia Priscila ^[1] ; Hochuli-Vieira, Eduardo ^[2] ; Mate Sanchez de Val, Jose E. ^[3] ; De Santis, Enzo ^[4] ; Salata, Luiz Antonio ^[5] ; Botticelli, Daniele ^[6]

Afiliação do(s) autor(es)

^[1] Fundacao Municipal Educ & Cultura FUNEC, Oral Maxillofacial Surg & Traumatol & Implantol, Santa Fe Do Sul, SP - Brazil

^[2] Araraquara UNESP, Sch Dent, Oral & Maxillocial Surg, Araraquara, SP - Brazil

^[3] Univ Murcia, Fac Med & Dent, Restorat Dent, Murcia - Spain

^[4] ARDEC, Ariminum Odontol, Rimini - Italy

^[5] Univ Sao Paulo, Fac Dent Ribeirao Preto, Dept Oral & Maxillofacial Surg, Avenida Cafe S-N, Campus USP, BR-14040904 Ribeirao Preto, SP - Brazil

^[6] ARDEC, Oral Surg Div, Ariminum Odontol, Rimini - Italy

• Tipo de documento: Artigo Científico
• Fonte: CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH; v. 18, n. 2, p. 360-368, APR 2016.
• Citações Web of Science: 1

Resumo

PurposeThe aim of this paper was to study the healing of 1-1.4mm wide buccal defects at implants placed immediately into extraction sockets (IPIES) filled with a mixture of synthetic hydroxyapatite (HA) 60% and beta-tricalciumphosphate (TCP) 40% or left with the clot alone and both covered with collagen membranes. Material and MethodsEight Labrador dogs were used and implants were placed immediately into the extraction sockets of the first molar bilaterally. A mixture of synthetic HA 60% and beta-TCP 40% at the test or the clot alone at the control sites were used to fill the defects. All surgical sites were subsequently covered by a resorbable collagen membrane and a non-submerged healing was allowed. After 4 months, the animals were euthanized, biopsies harvested and processed for histomorphometric analysis. ResultsAt the time of installation, residual buccal defects occurred that were 1.1mm and 1.4mm wide and 3mm and 4mm deep at the control and test sites, respectively. After 4 months of healing, the top of the bony crest and the coronal level of osseointegration were located respectively at 0.11.8mm and 1.5 +/- 1.8mm at the test, and 0.6 +/- 1.6mm and 1.2 +/- 0.7mm at the control sites apically to the implant shoulder. Bone-to-implant contact at the buccal aspect was 34.9 +/- 25.9% and 36.4 +/- 17.3% at the test and control sites, respectively. No statistically significant differences were found between test and control sites for any of the variables analyzed at the buccal aspects. ConclusionsThe use of a mixture of synthetic HA 60% and beta-TCP 40% to fill residual buccal defects 1-1.4mm wide at IPIES did not improve significantly the results of healing. (AU)

• Processo FAPESP: 10/15286-9 - Reconstrução imediata de defeitos peri-implantares em implantes pós-exodônticos. Análise histomorfométrica em cães.
• Beneficiário: Flávia Priscila Pereira
• Modalidade de apoio: Bolsas no Brasil - Doutorado