Bone healing pattern in surgically created circumferential defects around submerged implants: an experimental study in dog

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dc.contributor.authorRossi, Fabio [UNESP]
dc.contributor.authorBotticelli, Daniele [UNESP]
dc.contributor.authorPantani, Fabio [UNESP]
dc.contributor.authorPereira, Flavia Priscila [UNESP]
dc.contributor.authorSalata, Luiz Antonio
dc.contributor.authorLang, Niklaus P.
dc.contributor.institutionARDEC
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Bologna
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv Hong Kong
dc.date.accessioned2014-05-20T15:31:55Z
dc.date.available2014-05-20T15:31:55Z
dc.date.issued2012-01-01
dc.description.abstractObjective: To describe the healing of marginal defects below or above 1 mm of dimension around submerged implants in a dog model.Material and methods: In 12 Labrador dogs, all mandibular premolars and first molars were extracted bilaterally. After 3 months of healing, full-thickness flaps were elevated in the edentulous region of the right side of the mandible. Two recipient sites were prepared and the marginal 5mm were widened to such an extent to obtain, after implant installation, a marginal gap of 0.5mm at the mesial site (small defect) and of 1.25mm at the distal site (large defect). Titanium healing caps were affixed to the implants and the flaps were sutured allowing a fully submerged healing. The experimental procedures were subsequently performed in the left side of the mandible. The timing of the experiments and sacrifices were planned in such a way to obtain biopsies representing the healing after 5, 10, 20 and 30 days. Ground sections were prepared and histomorphometrically analyzed.Results: The filling of the defect with newly formed bone was incomplete after 1 month of healing in all specimens. Bone formation occurred from the base and the lateral walls of the defects. A larger volume of new bone was formed in the large compared with the small defects. Most of the new bone at the large defect was formed between the 10- and the 20-day period of healing. After 1 month of healing, the outline of the newly formed bone was, however, located at a similar distance from the implant surface (about 0.4mm) at both defect types. Only minor newly formed bone in contact with the implant, starting from the base of the defects, was seen at the large defects (about 0.8mm) while a larger amount was detected at the small defects (about 2.2 mm).Conclusion: Marginal defects around titanium implants appeared to regenerate in 20-30 days by means of a distance osteogenesis. The bone fill of the defects was, however, incomplete after 1 month.en
dc.description.affiliationARDEC, I-47923 Rimini, Italy
dc.description.affiliationSão Paulo State Univ, UNESP Fac Dent Aracatuba, São Paulo, Brazil
dc.description.affiliationUniv Bologna, Oral Surg Unit, Dept Odontostomatol Sci, Bologna, Italy
dc.description.affiliationUniv São Paulo, Fac Dent Ribeirao Preto, USP, São Paulo, Brazil
dc.description.affiliationUniv Hong Kong, Prince Philip Dent Hosp, Hong Kong, Hong Kong, Peoples R China
dc.description.affiliationUnespSão Paulo State Univ, UNESP Fac Dent Aracatuba, São Paulo, Brazil
dc.description.sponsorshipSweden & Martina SRL, Due Carrare, Padova, Italy
dc.description.sponsorshipAriminum Research & Dental Education Center (ARDEC)
dc.format.extent41-48
dc.identifierhttp://dx.doi.org/10.1111/j.1600-0501.2011.02170.x
dc.identifier.citationClinical Oral Implants Research. Malden: Wiley-blackwell, v. 23, n. 1, p. 41-48, 2012.
dc.identifier.doi10.1111/j.1600-0501.2011.02170.x
dc.identifier.issn0905-7161
dc.identifier.urihttp://hdl.handle.net/11449/40936
dc.identifier.wosWOS:000298548900007
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofClinical Oral Implants Research
dc.relation.ispartofjcr4.305
dc.relation.ispartofsjr2,462
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectanimal studyen
dc.subjectboneen
dc.subjectbone healingen
dc.subjectdefecten
dc.subjecthistomorphometryen
dc.subjectimplant dentistryen
dc.subjectosseointegrationen
dc.subjectsubmerged healingen
dc.titleBone healing pattern in surgically created circumferential defects around submerged implants: an experimental study in dogen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell

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