title: Radiologic evaluation of bone loss at implants with biocide coated titanium abutments: a study in the dog.
abstract: The objective of the present study is to evaluate bone loss at implant abutments coated with a soda-lime glass containing silver nanoparticles subjected to experimental peri-implantitis. Five beagle dogs were used in the experiments, 3 implants were installed in each quadrant of the mandibles. Glass/n-Ag coted abutments were connected to implant platform. Cotton floss ligatures were placed in a submarginal position around the abutment necks and the animals were subject to a diet which allowed plaque accumulation, and after 15 weeks the dogs were sacrificed. Radiographs of all implant sites were obtained at the beginning and at the end of the experimentally induced peri-implantitis. The radiographic examination indicated that significant amounts of additional bone loss occurred in implants without biocide coating, considering both absolute and relative values of bone loss. Percentages of additional bone loss observed in implants dressed with a biocide coated abutment were about 3 times lower (p<0.006 distal aspect; and p<0.031 at mesial aspect) than the control ones. Within the limits of the present study it seems promising the use of soda-lime glass/nAg coatings on abutments to prevent peri-implant diseases.
authors.affiliation: Nanomaterials and Nanotechnology Research Center-Consejo Superior de Investigaciones Científicas, Universidad de Oviedo, Principado de Asturias, Parque Tecnológico de Asturias, Llanera, Spain.
authors.forename: Roberto
authors.initials: R
authors.lastname: López-Píriz
authors.forename: Eva
authors.initials: E
authors.lastname: Solá-Linares
authors.forename: Juan J
authors.initials: JJ
authors.lastname: Granizo
authors.forename: Idohia
authors.initials: I
authors.lastname: Díaz-Güemes
authors.forename: Silvia
authors.initials: S
authors.lastname: Enciso
authors.forename: José F
authors.initials: JF
authors.lastname: Bartolomé
authors.forename: Belén
authors.initials: B
authors.lastname: Cabal
authors.forename: Leticia
authors.initials: L
authors.lastname: Esteban-Tejeda
authors.forename: Ramón
authors.initials: R
authors.lastname: Torrecillas
authors.forename: José S
authors.initials: JS
authors.lastname: Moya
mesh_terms: D000465:Algorithms; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging* / Q000209:etiology; D000818:Animals; D020099:Coated Materials, Biocompatible / Q000009:adverse effects / Q000494:pharmacology; D000044:Dental Abutments / Q000009:adverse effects; D003758:Dental Implantation, Endosseous / Q000009:adverse effects / Q000379:methods / Q000382:microbiology; D015921:Dental Implants / Q000009:adverse effects*; D017267:Dental Prosthesis Design; D004202:Disinfectants / Q000008:administration & dosage*; D004285:Dogs; D008439:Maxillary Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D057873:Peri-Implantitis / Q000150:complications / Q000000981:diagnostic imaging* / Q000517:prevention & control; D011859:Radiography; D013499:Surface Properties; D014025:Titanium / Q000009:adverse effects
chemical_list: D020099:Coated Materials, Biocompatible; D015921:Dental Implants; D004202:Disinfectants; D014025:Titanium