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Article: Establishment of the epithelial attachment and connective tissue adaptation to implants installed under the concept of “platform switching”: a histologic study in minipigs

TitleEstablishment of the epithelial attachment and connective tissue adaptation to implants installed under the concept of “platform switching”: a histologic study in minipigs
Authors
KeywordsBiologic Width
Connective Tissue Adaptation
Epithelial Attachment
Healing
Oral Implants
Platform Switching
Issue Date2012
PublisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLR
Citation
Clinical Oral Implants Research, 2012, v. 23 n. 1, p. 90-94 How to Cite?
AbstractAIM: To validate the 'platform switching' concept at oral implants with respect to the preservation of the alveolar crestal bone levels in an animal model. MATERIAL and METHODS: Five minipigs received three implants each with a 0.25 mm implant/abutment mismatch and were placed flush (T(0)), 1 mm below (T(1)) and 1 mm above (T(+1)) the alveolar bony crest, and as a control, one conventionally restored implant placed at the bone level. The implants were randomly inserted flapless into the mandible. Four months after implant insertion, the animals were sacrificed, and undecalcified block sections were obtained and used for histological analyses. RESULTS: The mean values for peri-implant bone resorption were 1.09 +/- 0.59 mm (Control), 0.51 (+/- 0.27 mm, T(0)), 0.50 (+/- 0.46 mm, T(+1)) and 1.30 (+/- 0.21 mm, T(-1)), respectively. Statistically significant differences (P<0.05) were found among the test (T(0), T(-1)) and the control sites. Control implants presented an average biologic width length of 3.20 mm (+/- 0.33), with a connective tissue adaptation compartment of 1.29 mm (+/- 0.53) and an epithelial attachment of 1.91 mm (+/- 0.71). T(0), T(+1) and T(-1) implants presented with a mean biologic width of 1.97 mm (+/- 1.20), 2.70 mm (+/- 1.36) and 2.84 mm (+/- 0.90), respectively, with a connective tissue adaptation compartment of 1.21 mm (+/- 0.97), 1.21 mm (+/- 0.65) and 1.50 mm (+/- 0.70) and an epithelial attachment of 0.84 mm (+/- 0.93), 1.66 mm (+/- 0.88) and 1.35 mm (+/- 0.44), respectively. Differences between the configurations were mainly associated with the length of the epithelial attachment. The epithelial attachment was significantly longer in the C sites than in T(0) (P=0.014). However, no other differences between configurations were detected. CONCLUSION: If the implants are positioned at the level of the alveolar bony crest, the platform-switching concept may have a minor impact on the length of the epithelial attachment (0.84 vs. 1.91 mm), while the connective tissue adaptation compartment remains relatively unaffected. Moreover, platform switching resulted in less resorption of the alveolar crest (0.58 mm).
Persistent Identifierhttp://hdl.handle.net/10722/144496
ISSN
2015 Impact Factor: 3.464
2015 SCImago Journal Rankings: 1.427
ISI Accession Number ID
Funding AgencyGrant Number
Sweden & Martina srl, Due Carrare, PD, Italy
Funding Information:

The authors would like to thank Prof. Alessandro Addis and Dr. Marino Campagnol (Faculty of Veterinary Medicine, Milan, Italy), Dr. Ivan Toschi and Dr. Valentina Cesari (Section of Agriculture Animal Husbandry Department of Animal Science, Milan, Italy), Dr. Dario Andreoni, Dr Roberto Crespi, Dr Elisabetta Mariani and Dr. Marco Benigni for the clinical and histological part of the study. The study has been supported by a grant from Sweden & Martina srl, Due Carrare, PD, Italy. The authors declare no conflict of interest.

 

DC FieldValueLanguage
dc.contributor.authorFarronato, Den_US
dc.contributor.authorSantoro, Gen_US
dc.contributor.authorCanullo, Len_US
dc.contributor.authorBotticelli, Den_US
dc.contributor.authorMaiorana, Cen_US
dc.contributor.authorLang, NPen_US
dc.date.accessioned2012-02-03T06:11:25Z-
dc.date.available2012-02-03T06:11:25Z-
dc.date.issued2012en_US
dc.identifier.citationClinical Oral Implants Research, 2012, v. 23 n. 1, p. 90-94en_US
dc.identifier.issn0905-7161en_US
dc.identifier.urihttp://hdl.handle.net/10722/144496-
dc.description.abstractAIM: To validate the 'platform switching' concept at oral implants with respect to the preservation of the alveolar crestal bone levels in an animal model. MATERIAL and METHODS: Five minipigs received three implants each with a 0.25 mm implant/abutment mismatch and were placed flush (T(0)), 1 mm below (T(1)) and 1 mm above (T(+1)) the alveolar bony crest, and as a control, one conventionally restored implant placed at the bone level. The implants were randomly inserted flapless into the mandible. Four months after implant insertion, the animals were sacrificed, and undecalcified block sections were obtained and used for histological analyses. RESULTS: The mean values for peri-implant bone resorption were 1.09 +/- 0.59 mm (Control), 0.51 (+/- 0.27 mm, T(0)), 0.50 (+/- 0.46 mm, T(+1)) and 1.30 (+/- 0.21 mm, T(-1)), respectively. Statistically significant differences (P<0.05) were found among the test (T(0), T(-1)) and the control sites. Control implants presented an average biologic width length of 3.20 mm (+/- 0.33), with a connective tissue adaptation compartment of 1.29 mm (+/- 0.53) and an epithelial attachment of 1.91 mm (+/- 0.71). T(0), T(+1) and T(-1) implants presented with a mean biologic width of 1.97 mm (+/- 1.20), 2.70 mm (+/- 1.36) and 2.84 mm (+/- 0.90), respectively, with a connective tissue adaptation compartment of 1.21 mm (+/- 0.97), 1.21 mm (+/- 0.65) and 1.50 mm (+/- 0.70) and an epithelial attachment of 0.84 mm (+/- 0.93), 1.66 mm (+/- 0.88) and 1.35 mm (+/- 0.44), respectively. Differences between the configurations were mainly associated with the length of the epithelial attachment. The epithelial attachment was significantly longer in the C sites than in T(0) (P=0.014). However, no other differences between configurations were detected. CONCLUSION: If the implants are positioned at the level of the alveolar bony crest, the platform-switching concept may have a minor impact on the length of the epithelial attachment (0.84 vs. 1.91 mm), while the connective tissue adaptation compartment remains relatively unaffected. Moreover, platform switching resulted in less resorption of the alveolar crest (0.58 mm).-
dc.languageengen_US
dc.publisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLR-
dc.relation.ispartofClinical Oral Implants Researchen_US
dc.rightsThe definitive version is available at www3.interscience.wiley.com-
dc.subjectBiologic Width-
dc.subjectConnective Tissue Adaptation-
dc.subjectEpithelial Attachment-
dc.subjectHealing-
dc.subjectOral Implants-
dc.subjectPlatform Switching-
dc.subject.meshAlveolar Bone Loss - pathology-
dc.subject.meshConnective Tissue - physiology-
dc.subject.meshDental Implantation, Endosseous - methods-
dc.subject.meshDental Implants-
dc.subject.meshEpithelial Attachment - physiology-
dc.titleEstablishment of the epithelial attachment and connective tissue adaptation to implants installed under the concept of “platform switching”: a histologic study in minipigsen_US
dc.typeArticleen_US
dc.identifier.emailCanullo, L: luigicanullo@yahoo.coen_US
dc.identifier.emailLang, NP: nplang@hkucc.hku.hk-
dc.identifier.authorityLang, NP=rp00031en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1600-0501.2011.02196.x-
dc.identifier.pmid21492239-
dc.identifier.scopuseid_2-s2.0-84055183061-
dc.identifier.hkuros198292en_US
dc.identifier.volume23en_US
dc.identifier.issue1en_US
dc.identifier.spage90en_US
dc.identifier.epage94en_US
dc.identifier.isiWOS:000298548900014-
dc.publisher.placeUnited States-
dc.identifier.scopusauthoridFarronato, D=22034456100-
dc.identifier.scopusauthoridSantoro, G=24167488700-
dc.identifier.scopusauthoridCanullo, L=22233349200-
dc.identifier.scopusauthoridBotticelli, D=6601962395-
dc.identifier.scopusauthoridMaiorana, C=6604063533-
dc.identifier.scopusauthoridLang, NP=7201577367-

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