Uma sugestão para os que estão começando a estudar implantodontia. O artigo abaixo, orientado por Noel Claffey e publicado em 2003, serve de inspiração para reflexões clínicas preliminares e sugere aprofundamento no tema.
Osseointegration on implant surfaces previously contaminated with plaque : An experimental study in the dog
Stravros G. Kolonidis, David Harris, Noel Claffey
Abstract: This study investigated whether osseointegration can occur on a surface which had previously been coated with dental plaque. The mandibular premolar regions of four young adult Labrador dogs were used for the study. The lower premolars (P1, P2, P3, and P4) were extracted on either side of the mandibles. Following a 12-week healing period, three 3.75 mm 13 mm commercially pure titanium implants (Nobel BiocaresAB, Gothenburg, Sweden) were partially inserted in one side of each mandible. This resulted in some threads protruding from the tissues into the oral cavity. Plaque was allowed to accumulate on the exposed implant surfaces. Following a 5-week healing period, the contaminated parts of each implant were treated using three different cleaning techniques: (1) swabbing with supersaturated citric acid for 30 s on a cotton pellet followed by rinsing with physiological saline, (2) cleansing with a toothbrush and physiological saline only for 1 min, and (3) swabbing with 10% hydrogen peroxide (H2O2) on a cotton pellet for 1 min followed by rinsing with physiological saline. The treated implants and one previously unused implant (control) were then placed into freshly prepared tapped sites to the full implant length on the contralateral sides of the mandibles. Following 11 weeks of healing, biopsies were obtained and ground sections prepared for histomorphometric analysis. All treatment modalities were associated with direct bone to implant contact on the portion of implant surface previously exposed to the oral environment. In conclusion, The results demonstrate that osseointegration can occur to surfaces that were plaque contaminated and cleaned by different methods.
Osseointegration on implant surfaces previously contaminated with plaque : An experimental study in the dog
Stravros G. Kolonidis, David Harris, Noel Claffey
Key words: peri-implantitis, treatment, osseointegration, wound healing, histology
Abstract: This study investigated whether osseointegration can occur on a surface which had previously been coated with dental plaque. The mandibular premolar regions of four young adult Labrador dogs were used for the study. The lower premolars (P1, P2, P3, and P4) were extracted on either side of the mandibles. Following a 12-week healing period, three 3.75 mm 13 mm commercially pure titanium implants (Nobel BiocaresAB, Gothenburg, Sweden) were partially inserted in one side of each mandible. This resulted in some threads protruding from the tissues into the oral cavity. Plaque was allowed to accumulate on the exposed implant surfaces. Following a 5-week healing period, the contaminated parts of each implant were treated using three different cleaning techniques: (1) swabbing with supersaturated citric acid for 30 s on a cotton pellet followed by rinsing with physiological saline, (2) cleansing with a toothbrush and physiological saline only for 1 min, and (3) swabbing with 10% hydrogen peroxide (H2O2) on a cotton pellet for 1 min followed by rinsing with physiological saline. The treated implants and one previously unused implant (control) were then placed into freshly prepared tapped sites to the full implant length on the contralateral sides of the mandibles. Following 11 weeks of healing, biopsies were obtained and ground sections prepared for histomorphometric analysis. All treatment modalities were associated with direct bone to implant contact on the portion of implant surface previously exposed to the oral environment. In conclusion, The results demonstrate that osseointegration can occur to surfaces that were plaque contaminated and cleaned by different methods.Authors’ affiliations:
School of Dental Science, Trinity College, Dublin, Ireland Stefan Renvert, Department of Health Sciences, Kristianstad University, Kristianstad, Sweden Christopher H.F. Ha ̈mmerle, Niklaus P. Lang, Department of Periodontology & Fixed Prosthodontics, University of Berne, Switzerland
Correspondence to:
Prof. Noel Claffey
School of Dental Science Trinity College Dublin 2 Ireland Tel.: 353-1-6127-302 Fax: no. 353-1-6127-279 e-mail: nclaffey@dental.tcd.ie
Date:
Accepted 30 May 2002
To cite this article: Kolonidis SG, Renvert S, Ha ̈mmerle CHF, Lang NP, Harris D, Claffey N. Osseointegration on implant surfaces previously contaminated with plaque. An experimental study in the dog. Clin. Oral Impl. Res. 14, 2003; 373–380
Copyright r Blackwell Munksgaard 2003 ISSN 0905-7161
Nenhum comentário:
Postar um comentário