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Marginal bone resorption around immediate and delayed loaded implants supporting a locator‐retained mandibular overdenture. A 1‐year randomised controlled trial

Identifieur interne : 006653 ( Istex/Corpus ); précédent : 006652; suivant : 006654

Marginal bone resorption around immediate and delayed loaded implants supporting a locator‐retained mandibular overdenture. A 1‐year randomised controlled trial

Auteurs : M. A. Elsyad ; E. A. Elsaih ; A. S. Khairallah

Source :

RBID : ISTEX:CE3C397E29FCE6063E4DC128FD9252DEE4107FDB

Abstract

The aim of this 1‐year study was to evaluate and compare crestal bone loss and clinical outcomes of immediate and delayed loaded implants supporting mandibular overdentures with Locator attachments. In a randomised controlled clinical trial, 36 completely edentulous patients (mean age 59·6 years) who desired to improve the stability of their mandibular dentures were randomly assigned into two groups. Each patient received two implants in the canine area of the mandible after a minimal flap reflection. Implants were loaded by mandibular overdentures either 3 months (delayed loading group, G1) or the same day (immediate loading group, G2) after implant placement. Locator attachments were used to retain all overdentures to the implants. Peri‐implant vertical (VBL) and horizontal (HBLO) bone losses and clinical parameters [plaque scores (PI), gingival scores (GI), probing depths (PD) and implant stability (ISQ)] were assessed at time of overdenture insertion (T0), 6 months (T6) and 12 months (T12) after overdenture insertion. After 12 months of overdenture insertion, two implants (5·5%) failed in G2. Vertical bone loss was significantly higher in G2 compared with G1, while HBLO demonstrated insignificant differences between groups. All clinical parameters (PI, GI, PD and ISQ) did not differ significantly between groups. Vertical bone loss was significantly correlated with PD and HBLO. Immediately loaded two implants supporting a Locator‐retained mandibular overdenture are associated with more vertical bone resorption when compared to delayed loaded implants after 1 year. Clinical outcomes do not differ significantly between loading protocols.

Url:
DOI: 10.1111/joor.12182

Links to Exploration step

ISTEX:CE3C397E29FCE6063E4DC128FD9252DEE4107FDB

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<orgDiv>Department of Removable Prosthodontics</orgDiv>
<orgName>Faculty of Dentistry</orgName>
<orgName>Mansoura University</orgName>
<address>
<city>Mansoura</city>
<country>Egypt</country>
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<keyword xml:id="joor12182-kwd-0001">immediate loading</keyword>
<keyword xml:id="joor12182-kwd-0002">locator</keyword>
<keyword xml:id="joor12182-kwd-0003">bone loss</keyword>
<keyword xml:id="joor12182-kwd-0004">implant</keyword>
<keyword xml:id="joor12182-kwd-0005">overdentures</keyword>
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<title type="main">Summary</title>
<p>The aim of this 1‐year study was to evaluate and compare crestal bone loss and clinical outcomes of immediate and delayed loaded implants supporting mandibular overdentures with Locator attachments. In a randomised controlled clinical trial, 36 completely edentulous patients (mean age 59·6 years) who desired to improve the stability of their mandibular dentures were randomly assigned into two groups. Each patient received two implants in the canine area of the mandible after a minimal flap reflection. Implants were loaded by mandibular overdentures either 3 months (delayed loading group, G1) or the same day (immediate loading group, G2) after implant placement. Locator attachments were used to retain all overdentures to the implants. Peri‐implant vertical (
<fc>VBL</fc>
) and horizontal (
<fc>HBLO</fc>
) bone losses and clinical parameters [plaque scores (
<fc>PI</fc>
), gingival scores (
<fc>GI</fc>
), probing depths (
<fc>PD</fc>
) and implant stability (
<fc>ISQ</fc>
)] were assessed at time of overdenture insertion (T0), 6 months (T6) and 12 months (T12) after overdenture insertion. After 12 months of overdenture insertion, two implants (5·5%) failed in G2. Vertical bone loss was significantly higher in G2 compared with G1, while
<fc>HBLO</fc>
demonstrated insignificant differences between groups. All clinical parameters (
<fc>PI</fc>
,
<fc> GI</fc>
,
<fc> PD</fc>
and
<fc>ISQ</fc>
) did not differ significantly between groups. Vertical bone loss was significantly correlated with
<fc>PD</fc>
and
<fc>HBLO</fc>
. Immediately loaded two implants supporting a Locator‐retained mandibular overdenture are associated with more vertical bone resorption when compared to delayed loaded implants after 1 year. Clinical outcomes do not differ significantly between loading protocols.</p>
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<title>Marginal bone resorption around immediate and delayed loaded implants supporting a locator‐retained mandibular overdenture. A 1‐year randomised controlled trial</title>
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<title>Marginal bone resorption around immediate and delayed loaded implants supporting a locator‐retained mandibular overdenture. A 1‐year randomised controlled trial</title>
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<name type="personal">
<namePart type="given">M. A.</namePart>
<namePart type="family">Elsyad</namePart>
<affiliation>Department of Removable Prosthodontics, Faculty of Dentistry, Mansoura University, Mansoura, Egypt</affiliation>
<affiliation>Correspondence: Moustafa A. Elsyad, Department of Removable Prosthodontic, Faculty of Dentistry, Mansoura University, Mansoura, PO Box: 35516, #68 ElGomhoria Street, Mansoura, Egypt.E‐mail:</affiliation>
<affiliation>E-mail: M_syad@mans.edu.eg</affiliation>
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<name type="personal">
<namePart type="given">E. A.</namePart>
<namePart type="family">Elsaih</namePart>
<affiliation>Department of Removable Prosthodontics, Faculty of Dentistry, Mansoura University, Mansoura, Egypt</affiliation>
<role>
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<name type="personal">
<namePart type="given">A. S.</namePart>
<namePart type="family">Khairallah</namePart>
<affiliation>Department of Removable Prosthodontics, Faculty of Dentistry, Mansoura University, Mansoura, Egypt</affiliation>
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<dateIssued encoding="w3cdtf">2014-08</dateIssued>
<dateCreated encoding="w3cdtf">2014-04-25</dateCreated>
<dateValid encoding="w3cdtf">2014-04-15</dateValid>
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<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
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<abstract>The aim of this 1‐year study was to evaluate and compare crestal bone loss and clinical outcomes of immediate and delayed loaded implants supporting mandibular overdentures with Locator attachments. In a randomised controlled clinical trial, 36 completely edentulous patients (mean age 59·6 years) who desired to improve the stability of their mandibular dentures were randomly assigned into two groups. Each patient received two implants in the canine area of the mandible after a minimal flap reflection. Implants were loaded by mandibular overdentures either 3 months (delayed loading group, G1) or the same day (immediate loading group, G2) after implant placement. Locator attachments were used to retain all overdentures to the implants. Peri‐implant vertical (VBL) and horizontal (HBLO) bone losses and clinical parameters [plaque scores (PI), gingival scores (GI), probing depths (PD) and implant stability (ISQ)] were assessed at time of overdenture insertion (T0), 6 months (T6) and 12 months (T12) after overdenture insertion. After 12 months of overdenture insertion, two implants (5·5%) failed in G2. Vertical bone loss was significantly higher in G2 compared with G1, while HBLO demonstrated insignificant differences between groups. All clinical parameters (PI, GI, PD and ISQ) did not differ significantly between groups. Vertical bone loss was significantly correlated with PD and HBLO. Immediately loaded two implants supporting a Locator‐retained mandibular overdenture are associated with more vertical bone resorption when compared to delayed loaded implants after 1 year. Clinical outcomes do not differ significantly between loading protocols.</abstract>
<subject>
<genre>keywords</genre>
<topic>immediate loading</topic>
<topic>locator</topic>
<topic>bone loss</topic>
<topic>implant</topic>
<topic>overdentures</topic>
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<title>Journal of Oral Rehabilitation</title>
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<title>J Oral Rehabil</title>
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<identifier type="ISSN">0305-182X</identifier>
<identifier type="eISSN">1365-2842</identifier>
<identifier type="DOI">10.1111/(ISSN)1365-2842</identifier>
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<part>
<date>2014</date>
<detail type="volume">
<caption>vol.</caption>
<number>41</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>8</number>
</detail>
<extent unit="pages">
<start>608</start>
<end>618</end>
<total>11</total>
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<identifier type="ark">ark:/67375/WNG-T60CCVFH-T</identifier>
<identifier type="DOI">10.1111/joor.12182</identifier>
<identifier type="ArticleID">JOOR12182</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Copyright © 2014 John Wiley & Sons Ltd© 2014 John Wiley & Sons Ltd</accessCondition>
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