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Article: Dimensional ridge alterations following immediate implant placement in molar extraction sites: A six-month prospective cohort study with surgical re-entry

TitleDimensional ridge alterations following immediate implant placement in molar extraction sites: A six-month prospective cohort study with surgical re-entry
Authors
Issue Date2009
PublisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLR
Citation
Clinical Oral Implants Research, 2009, v. 20 n. 10, p. 1092-1098 How to Cite?
Abstract
Aim: To assess dimensional ridge alterations following immediate implant placement in molar extraction sites. Material and methods: Twelve subjects received 12 immediate transmucosal implants in molar extraction sites. Peri-implant defects were treated according to the principles of Guided Bone Regeneration by means of a deproteinized bone substitute and a bioresorbable collagen membrane. Changes in vertical (IS-BD, CREST-BD) and horizontal distances (EC-I, IC-I) of alveolar bony walls to the bottom of the defects (BD) and to the implant surfaces (I) were compared between implant placement and surgical re-entry at 6 months. Results: The implant survival rate at 6 months was 100%. Statistically significant differences (P<0.01) were observed in the mean changes in vertical distances IS-BD and CREST-BD between baseline and re-entry. At re-entry, all peri-implant marginal defects assessed from the internal socket wall to the implant surface (IC-I) were healed. The residual combined thickness of the buccal wall with the newly formed peri-implant bone at sites with an initial thickness of 1 mm was statistically significantly smaller (P<0.05) compared with that of sites with an initial buccal thickness of 2 mm (2.50 ± 0.76 vs. 4±0 mm). Conclusions: The marginal defects around immediate implants placed in molar extraction sites were completely filled after 6 months of healing through de novo bone formation. Bone resorption was observed from the external aspects of the buccal and oral socket walls. Dimensional changes of the external socket walls were mostly pronounced at the buccal aspects. © 2009 John Wiley & Sons A/S.
Persistent Identifierhttp://hdl.handle.net/10722/154585
ISSN
2013 Impact Factor: 3.123
ISI Accession Number ID
Funding AgencyGrant Number
Thommen Medical AG, Waldenburg, Switzerland
Gesitlich Biomaterials, Wolhusen, Switzerland
Clinical Research Foundation (CRF) for the Promotion of Oral Health, Brienz, Switzerland
Funding Information:

The study was supported by Thommen Medical AG, Waldenburg, Switzerland, by Gesitlich Biomaterials, Wolhusen, Switzerland, and by the Clinical Research Foundation (CRF) for the Promotion of Oral Health, Brienz, Switzerland. The authors thank Mr U. Iff for the schematic illustrations. Conflicts of interest: none declared.

References

 

Author Affiliations
  1. Università degli Studi di Napoli Federico II
  2. Prince Philip Dental Hospital
  3. Universität Bern
DC FieldValueLanguage
dc.contributor.authorMatarasso, Sen_US
dc.contributor.authorSalvi, GEen_US
dc.contributor.authorIorio Siciliano, Ven_US
dc.contributor.authorCafiero, Cen_US
dc.contributor.authorBlasi, Aen_US
dc.contributor.authorLang, NPen_US
dc.date.accessioned2012-08-08T08:26:20Z-
dc.date.available2012-08-08T08:26:20Z-
dc.date.issued2009en_US
dc.identifier.citationClinical Oral Implants Research, 2009, v. 20 n. 10, p. 1092-1098en_US
dc.identifier.issn0905-7161en_US
dc.identifier.urihttp://hdl.handle.net/10722/154585-
dc.description.abstractAim: To assess dimensional ridge alterations following immediate implant placement in molar extraction sites. Material and methods: Twelve subjects received 12 immediate transmucosal implants in molar extraction sites. Peri-implant defects were treated according to the principles of Guided Bone Regeneration by means of a deproteinized bone substitute and a bioresorbable collagen membrane. Changes in vertical (IS-BD, CREST-BD) and horizontal distances (EC-I, IC-I) of alveolar bony walls to the bottom of the defects (BD) and to the implant surfaces (I) were compared between implant placement and surgical re-entry at 6 months. Results: The implant survival rate at 6 months was 100%. Statistically significant differences (P<0.01) were observed in the mean changes in vertical distances IS-BD and CREST-BD between baseline and re-entry. At re-entry, all peri-implant marginal defects assessed from the internal socket wall to the implant surface (IC-I) were healed. The residual combined thickness of the buccal wall with the newly formed peri-implant bone at sites with an initial thickness of 1 mm was statistically significantly smaller (P<0.05) compared with that of sites with an initial buccal thickness of 2 mm (2.50 ± 0.76 vs. 4±0 mm). Conclusions: The marginal defects around immediate implants placed in molar extraction sites were completely filled after 6 months of healing through de novo bone formation. Bone resorption was observed from the external aspects of the buccal and oral socket walls. Dimensional changes of the external socket walls were mostly pronounced at the buccal aspects. © 2009 John Wiley & Sons A/S.en_US
dc.languageengen_US
dc.publisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLRen_US
dc.relation.ispartofClinical Oral Implants Researchen_US
dc.subject.meshAdulten_US
dc.subject.meshAlveolar Bone Loss - Prevention & Controlen_US
dc.subject.meshAlveolar Process - Physiologyen_US
dc.subject.meshAlveolar Ridge Augmentation - Methodsen_US
dc.subject.meshBone Regeneration - Physiologyen_US
dc.subject.meshCohort Studiesen_US
dc.subject.meshCrownsen_US
dc.subject.meshDental Implantation, Endosseous - Adverse Effects - Methodsen_US
dc.subject.meshDental Implants, Single-Toothen_US
dc.subject.meshDental Prosthesis, Implant-Supporteden_US
dc.subject.meshFemaleen_US
dc.subject.meshFollow-Up Studiesen_US
dc.subject.meshGuided Tissue Regeneration, Periodontal - Methodsen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshMolar - Surgeryen_US
dc.subject.meshOsseointegrationen_US
dc.subject.meshProspective Studiesen_US
dc.subject.meshTime Factorsen_US
dc.subject.meshTooth Extraction - Adverse Effectsen_US
dc.subject.meshTooth Socket - Surgeryen_US
dc.subject.meshTreatment Outcomeen_US
dc.titleDimensional ridge alterations following immediate implant placement in molar extraction sites: A six-month prospective cohort study with surgical re-entryen_US
dc.typeArticleen_US
dc.identifier.emailLang, NP:nplang@hkucc.hku.hken_US
dc.identifier.authorityLang, NP=rp00031en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1111/j.1600-0501.2009.01803.xen_US
dc.identifier.pmid19719737en_US
dc.identifier.scopuseid_2-s2.0-70249107770en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70249107770&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume20en_US
dc.identifier.issue10en_US
dc.identifier.spage1092en_US
dc.identifier.epage1098en_US
dc.identifier.isiWOS:000269674300005-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridMatarasso, S=7007013441en_US
dc.identifier.scopusauthoridSalvi, GE=35600695300en_US
dc.identifier.scopusauthoridIorio Siciliano, V=25644012800en_US
dc.identifier.scopusauthoridCafiero, C=6602956284en_US
dc.identifier.scopusauthoridBlasi, A=35309194400en_US
dc.identifier.scopusauthoridLang, NP=7201577367en_US
dc.identifier.citeulike5786640-

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