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Article: Clinical and radiographic changes at implants supporting single-unit crowns (SCs) and fixed dental prostheses (FDPs) with one cantilever extension: a retrospective study
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TitleClinical and radiographic changes at implants supporting single-unit crowns (SCs) and fixed dental prostheses (FDPs) with one cantilever extension: a retrospective study
 
AuthorsAglietta, M3
Iorio Siciliano, V2
Blasi, A2
Sculean, A3
Brägger, U3
Lang, NP1
Salvi, GE3
 
KeywordsBone level
Bone loss
Cantilever extension
Dental implants
Fixed dental prosthesis
 
Issue Date2012
 
PublisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLR
 
CitationClinical Oral Implants Research, 2012, v. 23 n. 5, p. 550-555 [How to Cite?]
DOI: http://dx.doi.org/10.1111/j.1600-0501.2011.02391.x
 
AbstractOBJECTIVES: To evaluate the clinical and radiographic changes at implants in posterior maxillary and mandibular areas supporting single-unit crowns (SCs) and fixed dental prostheses (FDPs) with one mesial or distal cantilever extension after an observation period of at least 3 years. MATERIAL AND METHODS: Seventeen subjects with 19 implant-supported SCs and 21 subjects with 21 implant-supported FDPs fulfilled the inclusion criteria. All FDPs were supported by two implants and had a span of 3-4 units. All reconstructions were incorporated in the posterior maxilla or mandible. The mesial and distal radiographic marginal bone loss from baseline (i.e. delivery of the reconstruction) to the follow-up examination was averaged and compared between SCs supporting one cantilever extension with that of implants supporting FDPs adjacent to or distant from the cantilever extension. Changes in mean pocket probing depth (PPD) were calculated and compared between the three groups. RESULTS: The mean observation period was 78.2 +/- 34.5 months for SCs supported by one implant and 67.8 +/- 29.8 months for FDPs supported by two implants. No implant loss occurred, yielding a 100% survival rate. At baseline, the mean radiographic bone levels +/- SD were 2.6 +/- 0.3 mm for implants supporting SCs, 2.6 +/- 0.3 mm for implants of FDPs adjacent to the cantilever extension, and 2.4 +/- 0.5 mm for implants of FDPs distant from the cantilever extension. At follow-up, the corresponding mean bone levels +/- SD were 2.7 +/- 0.4, 2.7 +/- 0.5, and 2.8 +/- 0.5 mm, respectively. No statistically significant differences (P > 0.05) were observed comparing the mean marginal bone loss between the three groups. Moreover, mean changes in PPD between baseline and follow-up were not statistically significantly different (P > 0.05) between the three groups. CONCLUSION: The presence of one mesial or distal cantilever extension in the posterior maxilla or mandible does not jeopardize the marginal bone levels of implants supporting SCs or short-span FDPs after a mean observation period of at least 5 years.
 
ISSN0905-7161
2013 Impact Factor: 3.123
 
DOIhttp://dx.doi.org/10.1111/j.1600-0501.2011.02391.x
 
ISI Accession Number IDWOS:000302606800005
 
DC FieldValue
dc.contributor.authorAglietta, M
 
dc.contributor.authorIorio Siciliano, V
 
dc.contributor.authorBlasi, A
 
dc.contributor.authorSculean, A
 
dc.contributor.authorBrägger, U
 
dc.contributor.authorLang, NP
 
dc.contributor.authorSalvi, GE
 
dc.date.accessioned2012-05-23T05:28:04Z
 
dc.date.available2012-05-23T05:28:04Z
 
dc.date.issued2012
 
dc.description.abstractOBJECTIVES: To evaluate the clinical and radiographic changes at implants in posterior maxillary and mandibular areas supporting single-unit crowns (SCs) and fixed dental prostheses (FDPs) with one mesial or distal cantilever extension after an observation period of at least 3 years. MATERIAL AND METHODS: Seventeen subjects with 19 implant-supported SCs and 21 subjects with 21 implant-supported FDPs fulfilled the inclusion criteria. All FDPs were supported by two implants and had a span of 3-4 units. All reconstructions were incorporated in the posterior maxilla or mandible. The mesial and distal radiographic marginal bone loss from baseline (i.e. delivery of the reconstruction) to the follow-up examination was averaged and compared between SCs supporting one cantilever extension with that of implants supporting FDPs adjacent to or distant from the cantilever extension. Changes in mean pocket probing depth (PPD) were calculated and compared between the three groups. RESULTS: The mean observation period was 78.2 +/- 34.5 months for SCs supported by one implant and 67.8 +/- 29.8 months for FDPs supported by two implants. No implant loss occurred, yielding a 100% survival rate. At baseline, the mean radiographic bone levels +/- SD were 2.6 +/- 0.3 mm for implants supporting SCs, 2.6 +/- 0.3 mm for implants of FDPs adjacent to the cantilever extension, and 2.4 +/- 0.5 mm for implants of FDPs distant from the cantilever extension. At follow-up, the corresponding mean bone levels +/- SD were 2.7 +/- 0.4, 2.7 +/- 0.5, and 2.8 +/- 0.5 mm, respectively. No statistically significant differences (P > 0.05) were observed comparing the mean marginal bone loss between the three groups. Moreover, mean changes in PPD between baseline and follow-up were not statistically significantly different (P > 0.05) between the three groups. CONCLUSION: The presence of one mesial or distal cantilever extension in the posterior maxilla or mandible does not jeopardize the marginal bone levels of implants supporting SCs or short-span FDPs after a mean observation period of at least 5 years.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationClinical Oral Implants Research, 2012, v. 23 n. 5, p. 550-555 [How to Cite?]
DOI: http://dx.doi.org/10.1111/j.1600-0501.2011.02391.x
 
dc.identifier.doihttp://dx.doi.org/10.1111/j.1600-0501.2011.02391.x
 
dc.identifier.epage555
 
dc.identifier.hkuros199425
 
dc.identifier.isiWOS:000302606800005
 
dc.identifier.issn0905-7161
2013 Impact Factor: 3.123
 
dc.identifier.issue5
 
dc.identifier.pmid22250868
 
dc.identifier.scopuseid_2-s2.0-84859705396
 
dc.identifier.spage550
 
dc.identifier.urihttp://hdl.handle.net/10722/146824
 
dc.identifier.volume23
 
dc.languageeng
 
dc.publisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLR
 
dc.publisher.placeUnited States
 
dc.relation.ispartofClinical Oral Implants Research
 
dc.rightsThe definitive version is available at www3.interscience.wiley.com
 
dc.subjectBone level
 
dc.subjectBone loss
 
dc.subjectCantilever extension
 
dc.subjectDental implants
 
dc.subjectFixed dental prosthesis
 
dc.titleClinical and radiographic changes at implants supporting single-unit crowns (SCs) and fixed dental prostheses (FDPs) with one cantilever extension: a retrospective study
 
dc.typeArticle
 
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<item><contributor.author>Aglietta, M</contributor.author>
<contributor.author>Iorio Siciliano, V</contributor.author>
<contributor.author>Blasi, A</contributor.author>
<contributor.author>Sculean, A</contributor.author>
<contributor.author>Br&#228;gger, U</contributor.author>
<contributor.author>Lang, NP</contributor.author>
<contributor.author>Salvi, GE</contributor.author>
<date.accessioned>2012-05-23T05:28:04Z</date.accessioned>
<date.available>2012-05-23T05:28:04Z</date.available>
<date.issued>2012</date.issued>
<identifier.citation>Clinical Oral Implants Research, 2012, v. 23 n. 5, p. 550-555</identifier.citation>
<identifier.issn>0905-7161</identifier.issn>
<identifier.uri>http://hdl.handle.net/10722/146824</identifier.uri>
<description.abstract>OBJECTIVES: To evaluate the clinical and radiographic changes at implants in posterior maxillary and mandibular areas supporting single-unit crowns (SCs) and fixed dental prostheses (FDPs) with one mesial or distal cantilever extension after an observation period of at least 3 years. MATERIAL AND METHODS: Seventeen subjects with 19 implant-supported SCs and 21 subjects with 21 implant-supported FDPs fulfilled the inclusion criteria. All FDPs were supported by two implants and had a span of 3-4 units. All reconstructions were incorporated in the posterior maxilla or mandible. The mesial and distal radiographic marginal bone loss from baseline (i.e. delivery of the reconstruction) to the follow-up examination was averaged and compared between SCs supporting one cantilever extension with that of implants supporting FDPs adjacent to or distant from the cantilever extension. Changes in mean pocket probing depth (PPD) were calculated and compared between the three groups. RESULTS: The mean observation period was 78.2 +/- 34.5 months for SCs supported by one implant and 67.8 +/- 29.8 months for FDPs supported by two implants. No implant loss occurred, yielding a 100% survival rate. At baseline, the mean radiographic bone levels +/- SD were 2.6 +/- 0.3 mm for implants supporting SCs, 2.6 +/- 0.3 mm for implants of FDPs adjacent to the cantilever extension, and 2.4 +/- 0.5 mm for implants of FDPs distant from the cantilever extension. At follow-up, the corresponding mean bone levels +/- SD were 2.7 +/- 0.4, 2.7 +/- 0.5, and 2.8 +/- 0.5 mm, respectively. No statistically significant differences (P &gt; 0.05) were observed comparing the mean marginal bone loss between the three groups. Moreover, mean changes in PPD between baseline and follow-up were not statistically significantly different (P &gt; 0.05) between the three groups. CONCLUSION: The presence of one mesial or distal cantilever extension in the posterior maxilla or mandible does not jeopardize the marginal bone levels of implants supporting SCs or short-span FDPs after a mean observation period of at least 5 years.</description.abstract>
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<relation.ispartof>Clinical Oral Implants Research</relation.ispartof>
<rights>The definitive version is available at www3.interscience.wiley.com</rights>
<subject>Bone level</subject>
<subject>Bone loss</subject>
<subject>Cantilever extension</subject>
<subject>Dental implants</subject>
<subject>Fixed dental prosthesis</subject>
<title>Clinical and radiographic changes at implants supporting single-unit crowns (SCs) and fixed dental prostheses (FDPs) with one cantilever extension: a retrospective study</title>
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Author Affiliations
  1. The University of Hong Kong
  2. Università degli Studi di Napoli Federico II
  3. Universität Bern