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dc.contributor.authorCamarda, Aldo Joseph
dc.contributor.authorDurand, Robert
dc.contributor.authorBenkarim, Marwa
dc.contributor.authorRompré, Pierre
dc.contributor.authorGuertin, Geneviève
dc.contributor.authorCiaburro, Hugo
dc.date.accessioned2021-04-09T11:58:21Z
dc.date.availableMONTHS_WITHHELD:12fr
dc.date.available2021-04-09T11:58:21Z
dc.date.issued2020-12-14
dc.identifier.urihttp://hdl.handle.net/1866/24955
dc.publisherWileyfr
dc.subjectBone-implant interactionsfr
dc.subjectClinical research/Clinical trialsfr
dc.subjectPeriodontologyfr
dc.subjectProsthodonticsfr
dc.subjectSoft-tissue-implant interactionsfr
dc.subjectSurface chemistryfr
dc.subjectSurgical techniquesfr
dc.subjectBiomechanics/Finite element analysisfr
dc.titleProspective randomized clinical trial evaluating the effects of two different implant collar designs on peri‐implant healing and functional osseointegration after 25 yearsfr
dc.typeArticlefr
dc.contributor.affiliationUniversité de Montréal. Faculté de médecine dentairefr
dc.identifier.doi10.1111/clr.13699
dcterms.abstractObjectives Evaluate the effects of two different machined‐collar lengths and designs on peri‐implant healing. Material and Methods An implant with a microtextured surface and 3.6mm‐long internal‐connection machined collar was compared to two implants that had an identical 1.2mm‐long external‐connection machined collar, but one had the microtextured surface while the other's was machined. Participants received the three implants, with microgap at the crest, alternately at five sites between mental foramen, and a full‐arch prosthesis. Peri‐implant bone levels were measured after 23 to 26 years of function. Keratinized tissue height, plaque, probing depth, bleeding, and purulence were also evaluated. Descriptive and mixed models for repeated\measures analyses were used, with Bonferroni correction for pairwise comparisons. Results Twenty‐two participants (110 implants) were evaluated at the 25‐year examination. Microtextured implants with the longer machined collar had significantly greater mean marginal bone loss (−1.77mm ± 0.18, mean ± SE) than machined (−0.85mm ± 0.18, p < .001) and microtextured (−1.00 ± 0.18mm, p < .001) implants with the shorter machined collar. Keratinized tissue height was greater for internal‐connection (0.74mm ± 0.10) versus external‐connection (0.51 ± 0.08, p = 0.01) microtextured implants. No differences were observed for plaque (p = 0.78), probing depth (p = 0.42), bleeding (p = 0.07), and purulence (p = 1.00). Implant survival rate was 99%. Conclusions Implants with the 1.2mm machined collar limited bone loss to 1mm, while those with the longer machined collar showed > 1.5mm loss after 25 years of function with microgap at the crest. Internal‐connection design and fixture surface microtexturing did not result in greater bone preservation.fr
dcterms.descriptionResearch on oral/dental intra-osseous implantology focuses primarily on discovering techniques that promote mechanical and/or biological osseointegration over the short-term. The present clinical research documents the effects of implant collar length, external versus internal connection collar design, and fixture surface microtexturing on bone and soft-tissue peri-implant healing after 25 years of function with complete mandibular dental prostheses.fr
dcterms.isPartOfurn:ISSN:0905-7161fr
dcterms.isPartOfurn:ISSN:1600-0501fr
dcterms.languageengfr
UdeM.ReferenceFournieParDeposantDOI:10.1111/clr.13699fr
UdeM.VersionRioxxVersion acceptée / Accepted Manuscriptfr
oaire.citationTitleClinical oral implants researchfr
oaire.citationVolume32fr
oaire.citationIssue3fr
oaire.citationStartPage285fr
oaire.citationEndPage296fr


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